/* ============================================
   CHINMAY RAIBAGKAR — PORTFOLIO
   Design System & Styles
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400&family=Space+Grotesk:wght@500;600;700&display=swap');

/* ============================================
   1. CSS CUSTOM PROPERTIES — DARK (default)
   ============================================ */
:root {
    /* Colors — Dark */
    --bg-primary: #07070F;
    --bg-elevated: #101021;
    --bg-card: rgba(255, 255, 255, 0.045);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --bg-section-alt: #0B0B16;
    --bg-nav: rgba(9, 9, 18, 0.72);
    --text-primary: #F4F3FF;
    --text-secondary: #AEB6D0;
    --text-muted: #6C7291;
    --accent-1: #22D3EE;
    --accent-2: #3B82F6;
    --accent-3: #2DD4BF;
    --gradient: linear-gradient(120deg, #14B8A6 0%, #06B6D4 50%, #3B82F6 100%);
    --gradient-cool: linear-gradient(120deg, #2DD4BF 0%, #22D3EE 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(6, 182, 212, 0.16), rgba(59, 130, 246, 0.14));
    --glow-accent: 0 0 30px rgba(6, 182, 212, 0.32);
    --glow-accent-strong: 0 0 60px rgba(6, 182, 212, 0.4), 0 0 120px rgba(59, 130, 246, 0.16);
    --glass-border: rgba(255, 255, 255, 0.09);
    --glass-border-hover: rgba(6, 182, 212, 0.4);
    --glass-blur: blur(22px);
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --border-subtle: rgba(255, 255, 255, 0.07);

    /* Elevation */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);

    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Sizing */
    --container-max: 1200px;
    --section-padding: 120px 0;
    --nav-height: 72px;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 26px;
    --radius-pill: 999px;

    /* Spacing scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 16px;
    --space-4: 24px;
    --space-5: 32px;
    --space-6: 48px;
    --space-7: 64px;
    --space-8: 96px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-theme: 0.4s ease;
}

/* ============================================
   2. LIGHT THEME OVERRIDES
   ============================================ */
html.light-theme {
    --bg-primary: #F8FAFC;
    --bg-elevated: #FFFFFF;
    --bg-card: rgba(255, 255, 255, 0.92);
    --bg-card-hover: #FFFFFF;
    --bg-section-alt: #EEF4F7;
    --bg-nav: rgba(248, 250, 252, 0.82);
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #7A8699;
    --accent-1: #0E7490;
    --glass-border: rgba(15, 40, 60, 0.09);
    --glass-border-hover: rgba(6, 182, 212, 0.35);
    --card-shadow: 0 10px 34px rgba(15, 40, 60, 0.08);
    --border-subtle: rgba(15, 40, 60, 0.07);
    --glow-accent: 0 0 30px rgba(6, 182, 212, 0.15);
    --glow-accent-strong: 0 0 40px rgba(6, 182, 212, 0.15);
    --gradient-subtle: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(59, 130, 246, 0.08));
    --shadow-sm: 0 2px 8px rgba(15, 40, 60, 0.06);
    --shadow-md: 0 12px 32px rgba(15, 40, 60, 0.1);
    --shadow-lg: 0 24px 60px rgba(15, 40, 60, 0.14);
}

/* ============================================
   3. RESET & BASE
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    line-height: 1.7;
    transition: background-color var(--transition-theme), color var(--transition-theme);
    overflow-x: hidden;
    position: relative;
}

/* Ambient depth layer — soft radial glows + faint grid */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(60rem 40rem at 82% -8%, rgba(6, 182, 212, 0.14), transparent 60%),
        radial-gradient(50rem 40rem at -8% 12%, rgba(59, 130, 246, 0.10), transparent 55%),
        radial-gradient(45rem 40rem at 50% 108%, rgba(20, 184, 166, 0.08), transparent 60%);
    transition: opacity var(--transition-theme);
}

html.light-theme body::before {
    opacity: 0.5;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image:
        linear-gradient(to right, var(--border-subtle) 1px, transparent 1px),
        linear-gradient(to bottom, var(--border-subtle) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 70%);
    mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 70%);
    opacity: 0.5;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    color: var(--text-primary);
    line-height: 1.2;
    transition: color var(--transition-theme);
}

a {
    color: var(--accent-1);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-2);
}

img {
    max-width: 100%;
    display: block;
}

::selection {
    background: rgba(6, 182, 212, 0.3);
    color: var(--text-primary);
}

/* ============================================
   4. UTILITY CLASSES
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.gradient-text {
    background: var(--gradient);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent-1);
    margin-bottom: 14px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.section-label::before {
    content: '';
    width: 28px;
    height: 1px;
    background: var(--gradient);
    display: inline-block;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 48px;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.stagger-children .reveal:nth-child(1) {
    transition-delay: 0s;
}

.stagger-children .reveal:nth-child(2) {
    transition-delay: 0.1s;
}

.stagger-children .reveal:nth-child(3) {
    transition-delay: 0.2s;
}

.stagger-children .reveal:nth-child(4) {
    transition-delay: 0.3s;
}

.stagger-children .reveal:nth-child(5) {
    transition-delay: 0.4s;
}

.stagger-children .reveal:nth-child(6) {
    transition-delay: 0.5s;
}

/* ============================================
   5. NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.nav.scrolled {
    background: var(--bg-nav);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 1px 0 var(--border-subtle);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: color var(--transition-theme);
}

.nav-logo span {
    background: var(--gradient);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width var(--transition-base);
    border-radius: 1px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Theme Toggle */
.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--text-secondary);
}

.theme-toggle:hover {
    border-color: var(--accent-1);
    color: var(--accent-1);
    box-shadow: var(--glow-accent);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.theme-toggle:hover svg {
    transform: rotate(15deg);
}

.theme-toggle .icon-sun {
    display: none;
}

.theme-toggle .icon-moon {
    display: block;
}

html.light-theme .theme-toggle .icon-sun {
    display: block;
}

html.light-theme .theme-toggle .icon-moon {
    display: none;
}

/* Mobile Menu Button */
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 32px;
    height: 24px;
    position: relative;
    z-index: 1001;
}

.nav-hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
    position: absolute;
    left: 0;
}

.nav-hamburger span:nth-child(1) {
    top: 0;
}

.nav-hamburger span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.nav-hamburger span:nth-child(3) {
    bottom: 0;
}

.nav-hamburger.active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.nav-hamburger.active span:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* ============================================
   6. HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: var(--nav-height) 0 0;
}

/* Animated gradient blobs */
.hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: blobFloat 20s ease-in-out infinite;
    pointer-events: none;
}

.hero-blob-1 {
    width: 520px;
    height: 520px;
    background: rgba(6, 182, 212, 0.32);
    top: -10%;
    right: -5%;
    animation-delay: 0s;
}

.hero-blob-2 {
    width: 420px;
    height: 420px;
    background: rgba(59, 130, 246, 0.24);
    bottom: -10%;
    left: -5%;
    animation-delay: -7s;
}

.hero-blob-3 {
    width: 320px;
    height: 320px;
    background: rgba(20, 184, 166, 0.18);
    top: 40%;
    left: 40%;
    animation-delay: -14s;
}

html.light-theme .hero-blob {
    opacity: 0.2;
}

@keyframes blobFloat {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(30px, -40px) scale(1.05);
    }

    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }

    75% {
        transform: translate(15px, 30px) scale(1.02);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.hero-pre {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent-1);
    margin-bottom: 16px;
    letter-spacing: 1px;
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 0.8s 0.2s forwards;
}

.hero-name {
    font-size: clamp(3rem, 7vw, 5.25rem);
    font-weight: 700;
    line-height: 1.02;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 0.8s 0.4s forwards;
}

.hero-tagline {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 600;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 0.8s 0.6s forwards;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin-bottom: 36px;
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 0.8s 0.8s forwards;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 0.8s 1s forwards;
}

@keyframes heroFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   7. BUTTONS
   ============================================ */
.btn {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 14px 32px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-base);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient);
    background-size: 160% 160%;
    color: #fff;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.32);
    transition: background-position var(--transition-slow), box-shadow var(--transition-base), transform var(--transition-base);
}

.btn-primary:hover {
    background-position: 100% 0;
    box-shadow: 0 8px 34px rgba(6, 182, 212, 0.5);
    transform: translateY(-2px);
    color: #fff;
}

.btn-outline {
    background: rgba(6, 182, 212, 0.1);
    color: var(--text-primary);
    border: 1px solid rgba(6, 182, 212, 0.4);
    backdrop-filter: var(--glass-blur);
}

.btn-outline:hover {
    border-color: var(--accent-1);
    color: var(--accent-1);
    box-shadow: var(--glow-accent);
    transform: translateY(-2px);
}

.btn svg {
    width: 18px;
    height: 18px;
}

/* ============================================
   8. GLASSMORPHISM CARD
   ============================================ */
.glass-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--card-shadow);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

.glass-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-md), var(--glow-accent);
    transform: translateY(-4px);
}

/* ============================================
   9. ABOUT SECTION
   ============================================ */
.about {
    padding: var(--section-padding);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 64px;
    align-items: start;
}

.about-text p {
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-card {
    text-align: center;
    padding: 28px 16px;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============================================
   10. EXPERIENCE SECTION
   ============================================ */
.experience {
    padding: var(--section-padding);
    background: var(--bg-section-alt);
    transition: background-color var(--transition-theme);
}

.experience-company {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 48px;
}

.company-logo {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--gradient-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-1);
    border: 1px solid var(--glass-border);
}

.company-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
}

.company-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient);
    border-radius: 1px;
    opacity: 0.3;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -33px;
    top: 8px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gradient);
    box-shadow: 0 0 12px rgba(6, 182, 212, 0.4);
}

.timeline-dot::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--accent-1);
    opacity: 0.3;
}

.role-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 8px;
}

.role-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.role-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: var(--gradient-subtle);
    color: var(--accent-1);
    letter-spacing: 0.5px;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.role-period {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.role-achievements {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.role-achievements li {
    position: relative;
    padding-left: 20px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.role-achievements li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-1);
    font-weight: 600;
}

.award-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    background: var(--gradient);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
}

.award-badge+.award-badge {
    margin-left: 8px;
}

/* ============================================
   11. PROJECTS SECTION
   ============================================ */
.projects {
    padding: var(--section-padding);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.project-card {
    position: relative;
    overflow: hidden;
}

.project-card.featured {
    grid-column: span 2;
}

.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.project-card:hover::before {
    opacity: 1;
}

.project-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--gradient-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.project-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-1);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.project-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.project-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.project-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.project-tag:hover {
    border-color: var(--accent-1);
    color: var(--accent-1);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-1);
}

.project-link:hover {
    gap: 10px;
}

.project-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.project-link:hover svg {
    transform: translateX(4px);
}

/* ============================================
   12. CREDENTIALS SECTION (Patent, Pub, Certs)
   ============================================ */
.credentials {
    padding: var(--section-padding);
    background: var(--bg-section-alt);
    transition: background-color var(--transition-theme);
}

.credentials-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 48px;
}

.credential-card {
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.credential-card .credential-accent {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
}

.credential-type {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-1);
    margin-bottom: 16px;
    margin-top: 8px;
}

.credential-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
}

.credential-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.credential-meta span {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.credential-meta span svg {
    width: 14px;
    height: 14px;
    opacity: 0.6;
}

.credential-actions {
    margin-top: auto;
    padding-top: 20px;
}

.btn-credential {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-family: var(--font-body);
    font-weight: 600;
    padding: 8px 18px;
    background: var(--gradient-subtle);
    color: var(--accent-1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-pill);
    text-decoration: none;
    transition: all var(--transition-base);
}

.btn-credential:hover {
    background: var(--gradient);
    color: #fff;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-credential svg {
    width: 14px;
    height: 14px;
}

/* Certifications */
.certs-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.cert-card {
    text-align: center;
    padding: 28px 20px;
}

.cert-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto 16px;
    border-radius: var(--radius-md);
    background: var(--gradient-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.cert-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.cert-card span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   13. SKILLS SECTION
   ============================================ */
.skills {
    padding: var(--section-padding);
}

.skills-categories {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.skill-category h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.skill-category h3 span {
    font-size: 1.2rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 8px 18px;
    border-radius: var(--radius-pill);
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    transition: all var(--transition-base);
    cursor: default;
    backdrop-filter: var(--glass-blur);
}

.skill-tag:hover {
    border-color: var(--accent-1);
    color: var(--accent-1);
    box-shadow: var(--glow-accent);
    transform: translateY(-2px);
}

/* ============================================
   14. EDUCATION SECTION
   ============================================ */
.education {
    padding: var(--section-padding);
    background: var(--bg-section-alt);
    transition: background-color var(--transition-theme);
}

.education-card {
    max-width: 700px;
}

.edu-header {
    display: flex;
    align-items: start;
    gap: 20px;
    margin-bottom: 16px;
}

.edu-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--gradient-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    border: 1px solid var(--glass-border);
}

.edu-header h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.edu-header .edu-school {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.edu-details {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-subtle);
}

.edu-detail {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.edu-detail svg {
    width: 14px;
    height: 14px;
    opacity: 0.6;
}

.edu-cgpa {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--accent-1) !important;
}

/* ============================================
   15. CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--section-padding);
    position: relative;
    overflow: hidden;
}

.contact-blob {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    pointer-events: none;
}

.contact-blob-1 {
    background: rgba(6, 182, 212, 0.4);
    top: -100px;
    right: -100px;
}

.contact-blob-2 {
    background: rgba(59, 130, 246, 0.3);
    bottom: -100px;
    left: -100px;
}

.contact-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.7;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-link-item {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.contact-link-item:hover {
    color: var(--accent-1);
}

.contact-link-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    color: var(--text-muted);
}

.contact-link-item:hover .contact-link-icon {
    border-color: var(--accent-1);
    color: var(--accent-1);
    box-shadow: var(--glow-accent);
}

.contact-link-icon svg {
    width: 18px;
    height: 18px;
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-group input,
.form-group textarea {
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-base);
    outline: none;
    backdrop-filter: var(--glass-blur);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-1);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    font-size: 0.85rem;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    display: none;
}

.form-status.success {
    display: block;
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.form-status.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ============================================
   16. FOOTER
   ============================================ */
.footer {
    padding: 32px 0;
    text-align: center;
    border-top: 1px solid var(--border-subtle);
    transition: border-color var(--transition-theme);
}

.footer p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-socials {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
}

.footer-social {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-pill);
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-base);
}

.footer-social:hover {
    border-color: var(--accent-1);
    color: var(--accent-1);
    box-shadow: var(--glow-accent);
    transform: translateY(-2px);
}

.footer-social svg {
    width: 18px;
    height: 18px;
}

/* ============================================
   17. RESPONSIVE
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px 0;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .credentials-grid {
        grid-template-columns: 1fr;
    }

    .certs-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* Mobile */
@media (max-width: 767px) {
    :root {
        --section-padding: 64px 0;
        --nav-height: 64px;
    }

    .container {
        padding: 0 16px;
    }

    .glass-card {
        padding: 20px;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 28px;
        z-index: 999;
        transition: background-color var(--transition-theme);
        overflow-y: auto;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        font-size: 1.3rem;
    }

    .nav-hamburger {
        display: block;
    }

    .hero-name {
        font-size: clamp(2.2rem, 10vw, 3.5rem);
    }

    .hero-ctas {
        flex-direction: column;
    }

    .hero-ctas .btn {
        width: 100%;
        justify-content: center;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 20px 12px;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-card.featured {
        grid-column: span 1;
    }

    .credentials-grid {
        grid-template-columns: 1fr;
    }

    .certs-row {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-blob-1 {
        width: 300px;
        height: 300px;
    }

    .hero-blob-2 {
        width: 250px;
        height: 250px;
    }

    .hero-blob-3 {
        width: 200px;
        height: 200px;
    }

    .award-badge {
        font-size: 0.7rem;
        padding: 5px 12px;
        display: flex;
        width: fit-content;
    }

    .award-badge+.award-badge {
        margin-left: 0;
        margin-top: 4px;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline-dot {
        left: -23px;
    }
}

/* ============================================
   WORK SAMPLES
   ============================================ */
.work-samples {
    padding: var(--section-padding);
}

.work-card {
    padding: 40px;
    margin-top: 40px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 30px -10px rgba(6, 182, 212, 0.2);
    max-width: 100%;
    box-sizing: border-box;
}

@media (max-width: 767px) {
    .work-card {
        padding: 16px;
        margin-top: 24px;
    }
    .chart-container, .chart-container-bar {
        padding: 15px !important;
    }
}

.work-card-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 24px;
}

.work-card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
    box-shadow: var(--glow-accent);
}

.work-card-header h3 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.work-card-sub {
    font-size: 1.1rem;
    color: var(--accent-1);
    font-family: var(--font-mono);
}

.work-problem-solution {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
}

.work-block {
    flex: 1;
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
}

.work-block-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.05);
}

.work-block p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* --- Old Workflow Animation Removed --- */

/* Tooltip for pipeline steps */
.step-tooltip {
    position: absolute;
    bottom: 115%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: #1A1A24;
    background: var(--bg-section-alt);
    border: 1px solid var(--accent-1);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    width: 220px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--card-shadow);
    z-index: 10;
    pointer-events: none;
    line-height: 1.5;
}

.step-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: var(--glass-border) transparent transparent transparent;
}

.workflow-step:hover .step-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.work-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
    padding-top: 24px;
    border-top: 1px solid var(--glass-border);
}

.work-metric {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.work-metric-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--accent-1);
}

.work-metric-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ============================================
   EXPANDABLE CERTIFICATIONS
   ============================================ */
.certifications {
    padding: var(--section-padding);
    background: var(--bg-section-alt);
    transition: background-color var(--transition-theme);
}

.certs-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.cert-expandable {
    padding: 0;
    overflow: hidden;
}

.cert-expandable:hover {
    transform: none;
}

.cert-header {
    display: flex;
    align-items: center;
    justify-content: space-between; /* Reverted to space-between */
    gap: 24px;
    padding: 24px 28px;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.cert-header:hover {
    background: var(--gradient-subtle);
}

.cert-left {
    display: flex;
    align-items: center;
    gap: 20px;
    flex: none; /* Removed flex: 1 to stop it from taking up extra space */
    min-width: 0;
}

.cert-left .cert-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--gradient-subtle);
    border: 1px solid var(--glass-border);
}

.cert-left h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.cert-issuer {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.cert-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    margin-left: auto; /* Push actions to the far right while keeping cert-left content left-aligned */
}

.btn-cert-verify {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    background: var(--gradient-subtle);
    color: var(--accent-1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-cert-verify:hover {
    background: var(--gradient);
    color: #fff;
    border-color: transparent;
    transform: translateY(-1px);
}

.cert-chevron {
    display: flex;
    align-items: center;
    transition: transform var(--transition-base);
    color: var(--text-muted);
}

.cert-expandable.open .cert-chevron {
    transform: rotate(180deg);
}

.cert-subcourses {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.cert-expandable.open .cert-subcourses {
    max-height: 1500px;
}

.cert-subcourses-inner {
    padding: 0 28px 24px;
    border-top: 1px solid var(--border-subtle);
    padding-top: 20px;
}

.cert-subcourses-label {
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.cert-subcourse-list {
    list-style: decimal;
    padding-left: 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 32px;
}

.cert-subcourse-list li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding-left: 4px;
}

.cert-subcourse-list li::marker {
    color: var(--accent-1);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

/* ============================================
   EXPANDABLE SKILL TAGS
   ============================================ */
.skill-tag-wrap {
    display: inline-block;
    cursor: pointer;
    position: relative;
}

.skill-tag-wrap .skill-tag {
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
}

.skill-tag-wrap:hover .skill-tag,
.skill-tag-wrap.open .skill-tag {
    background: var(--gradient-subtle);
    border-color: var(--accent-1);
    color: var(--accent-1);
}

.skill-desc {
    display: none;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 10px 14px;
    margin-top: 6px;
    border-radius: var(--radius-sm);
    background: var(--gradient-subtle);
    border: 1px solid rgba(6, 182, 212, 0.15);
    animation: skillDescFadeIn 0.25s ease-out;
}

.skill-tag-wrap.open .skill-desc {
    display: block;
}

@keyframes skillDescFadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive cert sub-courses */
@media (max-width: 768px) {
    .cert-subcourse-list {
        grid-template-columns: 1fr;
    }

    .cert-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .cert-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .cert-left .cert-icon {
        margin: 0 0 8px 0; /* Forced no auto margin for mobile left-alignment */
    }

    .cert-actions {
        width: 100%;
        flex-wrap: wrap;
        justify-content: flex-start; /* Removed any centering for buttons */
        gap: 8px;
        margin-top: 8px;
    }
}

@media (max-width: 480px) {
    .cert-header {
        padding: 16px 20px;
    }

    .cert-subcourses-inner {
        padding: 0 20px 20px;
        padding-top: 16px;
    }

    .btn-cert-verify {
        font-size: 0.7rem;
        padding: 5px 10px;
    }
}

/* Responsive Work Samples */
@media (max-width: 900px) {
    /* Old mobile workflow removed */

    .step-tooltip {
        position: static;
        width: 100%;
        opacity: 1;
        visibility: visible;
        transform: none;
        margin-top: 12px;
        box-shadow: none;
        background: transparent;
        border: none;
        padding: 0;
        font-size: 0.85rem;
        color: var(--text-secondary);
    }

    .step-tooltip::after {
        display: none;
    }
}

@keyframes moveDotMobile {

    0%,
    9%,
    100% {
        top: 0;
        left: -3px;
        opacity: 0;
        background: var(--accent-1);
        box-shadow: 0 0 10px var(--accent-1);
    }

    10% {
        opacity: 1;
        top: 0;
        left: -3px;
    }

    18% {
        top: 100%;
        left: -3px;
        opacity: 1;
        background: var(--accent-2);
        box-shadow: 0 0 10px var(--accent-2);
    }

    19%,
    99% {
        top: 100%;
        left: -3px;
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .work-problem-solution {
        flex-direction: column;
        gap: 16px;
    }

    .work-metrics {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .work-metric {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        background: rgba(255, 255, 255, 0.02);
        padding: 12px 16px;
        border-radius: var(--radius-sm);
        border: 1px solid rgba(255, 255, 255, 0.05);
    }
}

@media (max-width: 480px) {
    .work-card {
        padding: 24px;
    }
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.4);
    z-index: 900;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    box-shadow: var(--glow-accent-strong);
    transform: translateY(-3px);
}

.back-to-top svg {
    width: 22px;
    height: 22px;
}

@media (max-width: 480px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    html {
        scroll-behavior: auto;
    }
}

/* ============================================
   ROBUST WORKFLOW ARCHITECTURE (Animated)
   ============================================ */
.workflow-architecture {
    position: relative;
    background: radial-gradient(circle at top left, #1e1338, #110c1c);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    margin-bottom: 40px;
    min-height: 400px;
    box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.workflow-svg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.wf-path {
    fill: none;
    stroke: rgba(6, 182, 212, 0.3);
    stroke-width: 1.5;
    stroke-dasharray: 4, 4;
}

.wf-path-feedback {
    stroke: rgba(59, 130, 246, 0.4);
    /* Pinkish for feedback */
}

.wf-particle {
    fill: var(--accent-1);
    filter: drop-shadow(0 0 5px var(--accent-1)) drop-shadow(0 0 10px var(--accent-1));
}

.wf-particle-feedback {
    fill: var(--accent-2);
    filter: drop-shadow(0 0 5px var(--accent-2)) drop-shadow(0 0 10px var(--accent-2));
}

.workflow-grid {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 20px;
    width: 100%;
}

.wf-layer {
    display: flex;
    flex-direction: column;
    gap: 24px;
    flex: 1;
}

.wf-layer-title {
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-align: center;
    margin-bottom: -10px;
    opacity: 0.8;
}

/* Glassmorphism Containers & Nodes */
.wf-node,
.wf-glass-card {
    background: rgba(26, 26, 36, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, border-color 0.3s ease;
    position: relative;
}

.wf-node:hover,
.wf-glass-card:hover {
    transform: translateY(-2px);
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.15);
}

.wf-node {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    justify-content: center;
}

.wf-node span {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.wf-card-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    text-align: center;
}

.wf-icon-group {
    display: flex;
    gap: 8px;
    background: rgba(255, 255, 255, 0.03);
    padding: 8px;
    border-radius: 50px;
}

.wf-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.wf-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* Sub-task Pills */
.wf-pills {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.wf-pill {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.03);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    transition: all 0.2s ease;
}

.wf-pill:hover {
    background: rgba(6, 182, 212, 0.1);
    color: var(--text-primary);
    border-color: rgba(6, 182, 212, 0.3);
}

/* Feedback Layer specific styles */
.wf-feedback-text {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    color: var(--accent-2);
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.8;
    z-index: 2;
    background: rgba(17, 12, 28, 0.8);
    padding: 8px 16px;
    border-radius: 20px;
    text-align: center;
    width: max-content;
    max-width: 90%;
    line-height: 1.4;
}

/* Pulse animation for the nodes */
@keyframes nodePulse {
    0% {
        box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(6, 182, 212, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(6, 182, 212, 0);
    }
}

.wf-node.active-pulse,
.wf-glass-card.active-pulse {
    animation: nodePulse 2s infinite;
    border-color: var(--accent-1);
}

@media (max-width: 900px) {
    .workflow-grid {
        flex-direction: column;
        gap: 40px;
    }

    .wf-layer {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    .workflow-architecture {
        padding: 40px 20px 80px;
    }

    .wf-feedback-text {
        bottom: 15px;
        font-size: 0.65rem;
    }
}

/* Light Theme Workflow Overrides */
html.light-theme .workflow-architecture {
    background: radial-gradient(circle at top left, #f3f0fc, #ffffff);
    border: 1px solid rgba(6, 182, 212, 0.15);
    box-shadow: inset 0 0 30px rgba(6, 182, 212, 0.05), 0 10px 30px rgba(0, 0, 0, 0.02);
}

html.light-theme .wf-node,
html.light-theme .wf-glass-card {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(6, 182, 212, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

html.light-theme .wf-node:hover,
html.light-theme .wf-glass-card:hover {
    border-color: rgba(6, 182, 212, 0.4);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.1);
    background: rgba(255, 255, 255, 0.95);
}

html.light-theme .wf-icon-group,
html.light-theme .wf-icon {
    background: rgba(6, 182, 212, 0.08);
}

html.light-theme .wf-pill {
    background: rgba(6, 182, 212, 0.05);
    border: 1px solid rgba(6, 182, 212, 0.1);
    color: var(--text-secondary);
}

html.light-theme .wf-pill:hover {
    background: rgba(6, 182, 212, 0.15);
    color: var(--text-primary);
    border-color: rgba(6, 182, 212, 0.3);
}

html.light-theme .wf-feedback-text {
    background: rgba(255, 255, 255, 0.9);
    color: var(--accent-2);
    border: 1px solid rgba(59, 130, 246, 0.2);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

html.light-theme .wf-path {
    stroke: rgba(6, 182, 212, 0.2);
}

html.light-theme .wf-path-feedback {
    stroke: rgba(59, 130, 246, 0.25);
}

html.light-theme .wf-particle {
    fill: var(--accent-1);
    filter: drop-shadow(0 0 4px var(--accent-1));
}

html.light-theme .wf-particle-feedback {
    fill: var(--accent-2);
    filter: drop-shadow(0 0 4px var(--accent-2));
}

html.light-theme .wf-layer-title {
    color: var(--accent-1);
    font-weight: 600;
}

/* Fix mobile workflow layout overlapping */
@media (max-width: 900px) {
    .workflow-grid {
        gap: 60px;
        /* Increased gap */
    }

    .workflow-grid>.wf-layer:first-child {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 15px;
        align-items: start;
    }

    .workflow-grid>.wf-layer:first-child .wf-node {
        flex-direction: column;
        padding: 16px 10px;
        gap: 10px;
        text-align: center;
    }

    .workflow-grid>.wf-layer:first-child .wf-node span {
        font-size: 0.85rem;
        line-height: 1.2;
    }

    .workflow-grid>.wf-layer:first-child .wf-layer-title {
        grid-column: 1 / -1;
    }

    .wf-layer {
        gap: 30px;
        /* Increased gap between cards */
    }

    .workflow-architecture {
        padding: 50px 20px 100px;
        /* More padding at bottom for feedback layer */
    }
}

/* ============================================
   DATALENS AI ARCHITECTURE (Animated)
   ============================================ */
.dl-architecture {
    position: relative;
    background: radial-gradient(circle at top right, #0c1a2e, #0d0f1a 40%, #1a0e2e);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    margin-bottom: 40px;
    min-height: 380px;
    box-shadow: inset 0 0 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.dl-svg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* SVG Paths & Particles */
.dl-path {
    fill: none;
    stroke: rgba(99, 102, 241, 0.3);
    stroke-width: 1.5;
    stroke-dasharray: 5, 5;
}

.dl-path-feedback {
    stroke: rgba(6, 182, 212, 0.35);
}

.dl-particle {
    fill: #6366f1;
    filter: drop-shadow(0 0 5px #6366f1) drop-shadow(0 0 10px #6366f1);
}

.dl-particle-feedback {
    fill: #06b6d4;
    filter: drop-shadow(0 0 5px #06b6d4) drop-shadow(0 0 10px #06b6d4);
}

/* ============================================
    MOCK DASHBOARD UI
    ============================================ */
.mock-dashboard {
    padding: 24px;
    margin-top: 16px;
    background: rgba(13, 15, 26, 0.4) !important;
}

html.light-theme .mock-dashboard {
    background: rgba(0, 0, 0, 0.03) !important;
}

.dashboard-kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    padding: 16px !important;
    text-align: center;
    background: rgba(255, 255, 255, 0.03) !important;
}

html.light-theme .kpi-card {
    background: rgba(255, 255, 255, 0.7) !important;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
}

.kpi-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 1.4rem;
    font-weight: 700;
}

.dashboard-chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
    max-width: 100%;
}

.dashboard-chart-full {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 100%;
}

.chart-container {
    padding: 10px !important;
    height: 320px;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
}

.chart-container-bar {
    padding: 10px !important;
    height: 260px;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
}

@media (max-width: 767px) {
    .mock-dashboard {
        padding: 12px !important;
    }
    .dashboard-kpi-grid {
        grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
        gap: 12px;
    }
    .dashboard-chart-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    .chart-container, .chart-container-bar {
        height: 280px;
        min-width: 0;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .dashboard-kpi-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
    .kpi-card {
        padding: 10px 4px !important;
    }
    .kpi-value {
        font-size: 1.1rem;
    }
    .kpi-label {
        font-size: 0.75rem;
    }
    .chart-container, .chart-container-bar {
        height: 240px;
        min-width: 0;
        max-width: 100%;
    }
}

/* Grid Layout */
.dl-grid {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 20px;
    width: 100%;
}

.dl-layer {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex: 1;
}

.dl-layer-title {
    color: #8b8fa3;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-align: center;
    margin-bottom: -4px;
    opacity: 0.85;
    font-family: var(--font-mono);
}

/* Node Styles */
.dl-node,
.dl-glass-card {
    background: rgba(22, 24, 40, 0.65);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.dl-node:hover,
.dl-glass-card:hover {
    transform: translateY(-2px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 8px 28px rgba(99, 102, 241, 0.15);
}

.dl-node {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
}

.dl-node-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.dl-node-label {
    font-weight: 500;
    font-size: 0.88rem;
    color: #e2e8f0;
}

/* User Query Node — special style */
.dl-node-user {
    flex-direction: column;
    text-align: center;
    gap: 8px;
    padding: 20px 16px;
    border-color: rgba(99, 102, 241, 0.15);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(99, 102, 241, 0.02));
}

.dl-node-user .dl-node-icon {
    width: 48px;
    height: 48px;
    font-size: 1.6rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.dl-node-content {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.dl-node-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: #e2e8f0;
}

.dl-node-desc {
    font-size: 0.75rem;
    color: #8b8fa3;
}

/* Glass Card (Agent & Output) */
.dl-card-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    text-align: center;
}

.dl-icon-group {
    display: flex;
    gap: 8px;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 8px 14px;
    border-radius: 50px;
}

.dl-card-title {
    font-weight: 600;
    font-size: 0.92rem;
    color: #e2e8f0;
}

.dl-pills {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.dl-pill {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 7px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    color: #b0b4c8;
    text-align: center;
    transition: all 0.2s ease;
}

.dl-pill:hover {
    background: rgba(99, 102, 241, 0.1);
    color: #e2e8f0;
    border-color: rgba(99, 102, 241, 0.3);
}

/* Feedback Layer Text */
.dl-feedback-text {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.73rem;
    color: #06b6d4;
    text-transform: uppercase;
    letter-spacing: 1.8px;
    opacity: 0.85;
    z-index: 2;
    background: rgba(13, 15, 26, 0.85);
    padding: 8px 18px;
    border-radius: 20px;
    text-align: center;
    width: max-content;
    max-width: 90%;
    line-height: 1.4;
    font-family: var(--font-mono);
    border: 1px solid rgba(6, 182, 212, 0.15);
}

/* Pulse animation for DataLens nodes */
@keyframes dlNodePulse {
    0% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.35);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0);
    }
}

.dl-node.active-pulse,
.dl-glass-card.active-pulse {
    animation: dlNodePulse 2.5s infinite;
    border-color: rgba(99, 102, 241, 0.35);
}

/* ============================================
   DATALENS TECH STACK
   ============================================ */
.dl-tech-stack {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.dl-tech-label {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
}

.dl-tech-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.dl-tech-pill {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid color-mix(in srgb, var(--pill-color) 30%, transparent);
    color: color-mix(in srgb, var(--pill-color) 60%, var(--text-secondary));
    transition: all var(--transition-fast);
    backdrop-filter: blur(4px);
    user-select: none;
}

.dl-tech-pill-wrap {
    display: inline-block;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-base);
}

.dl-tech-pill {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid color-mix(in srgb, var(--pill-color) 30%, transparent);
    color: color-mix(in srgb, var(--pill-color) 60%, var(--text-secondary));
    transition: all var(--transition-fast);
    backdrop-filter: blur(4px);
    user-select: none;
}

.dl-tech-pill-wrap {
    display: inline-block;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-base);
}

.dl-tech-pill-wrap:hover .dl-tech-pill,
.dl-tech-pill-wrap.open .dl-tech-pill {
    background: color-mix(in srgb, var(--pill-color) 12%, transparent);
    border-color: color-mix(in srgb, var(--pill-color) 50%, transparent);
    color: color-mix(in srgb, var(--pill-color) 90%, white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--pill-color) 20%, transparent);
}

.dl-tech-desc {
    display: none;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 12px 16px;
    margin-top: 10px;
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--pill-color) 8%, var(--bg-card));
    border: 1px solid color-mix(in srgb, var(--pill-color) 20%, var(--glass-border));
    backdrop-filter: blur(10px);
    animation: dlDescFadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 350px; /* Slightly wider for better readability */
}

.dl-tech-desc a {
    display: inline-block;
    margin-left: 8px;
    color: var(--accent-1);
    font-weight: 600;
    text-decoration: underline;
    transition: color 0.2s ease;
}

.dl-tech-desc a:hover {
    color: var(--accent-2);
}

.dl-tech-pill-wrap.open .dl-tech-desc {
    display: block;
    /* Pushes content below naturally like the toolkit section */
}

@keyframes dlDescFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Ensure descriptions look good on mobile and wrap correctly */
@media (max-width: 768px) {
    .dl-tech-desc {
        max-width: 100%;
        margin-top: 8px;
    }
    
    .dl-tech-pills {
        gap: 10px;
    }
    
    /* Optional: make the open pill take full width on small screens to avoid awkward wraps */
    .dl-tech-pill-wrap.open {
        width: 100%;
    }
}

/* ============================================
   DATALENS LIGHT THEME OVERRIDES
   ============================================ */
html.light-theme .dl-architecture {
    background: radial-gradient(circle at top right, #eef2ff, #f8f6ff 40%, #f3f0fc);
    border: 1px solid rgba(99, 102, 241, 0.15);
    box-shadow: inset 0 0 30px rgba(99, 102, 241, 0.04), 0 10px 30px rgba(0, 0, 0, 0.03);
}

html.light-theme .dl-node,
html.light-theme .dl-glass-card {
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(99, 102, 241, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

html.light-theme .dl-node:hover,
html.light-theme .dl-glass-card:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.1);
    background: rgba(255, 255, 255, 0.95);
}

html.light-theme .dl-node-user {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.06), rgba(99, 102, 241, 0.01));
}

html.light-theme .dl-node-label,
html.light-theme .dl-node-title,
html.light-theme .dl-card-title {
    color: var(--text-primary);
}

html.light-theme .dl-node-desc {
    color: var(--text-muted);
}

html.light-theme .dl-icon-group,
html.light-theme .dl-node-icon {
    background: rgba(99, 102, 241, 0.08);
}

html.light-theme .dl-pill {
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.1);
    color: var(--text-secondary);
}

html.light-theme .dl-pill:hover {
    background: rgba(99, 102, 241, 0.15);
    color: var(--text-primary);
    border-color: rgba(99, 102, 241, 0.3);
}

html.light-theme .dl-feedback-text {
    background: rgba(255, 255, 255, 0.9);
    color: #0891b2;
    border: 1px solid rgba(6, 182, 212, 0.2);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
}

html.light-theme .dl-path {
    stroke: rgba(99, 102, 241, 0.2);
}

html.light-theme .dl-path-feedback {
    stroke: rgba(6, 182, 212, 0.2);
}

html.light-theme .dl-particle {
    fill: #6366f1;
    filter: drop-shadow(0 0 4px #6366f1);
}

html.light-theme .dl-particle-feedback {
    fill: #06b6d4;
    filter: drop-shadow(0 0 4px #06b6d4);
}

html.light-theme .dl-layer-title {
    color: #6366f1;
    font-weight: 600;
}

html.light-theme .dl-tech-pill {
    background: rgba(255, 255, 255, 0.6);
}

/* ============================================
   DATALENS RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
    .dl-grid {
        flex-direction: column;
        gap: 48px;
    }

    .dl-layer {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    /* Data Sources: 3-column grid on mobile */
    .dl-layer:nth-child(3) {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
        max-width: 100%;
    }

    .dl-layer:nth-child(3) .dl-layer-title {
        grid-column: 1 / -1;
    }

    .dl-layer:nth-child(3) .dl-node {
        flex-direction: column;
        padding: 14px 8px;
        gap: 8px;
        text-align: center;
    }

    .dl-layer:nth-child(3) .dl-node .dl-node-label {
        font-size: 0.8rem;
        line-height: 1.2;
    }

    .dl-architecture {
        padding: 40px 20px 80px;
    }

    .dl-feedback-text {
        bottom: 14px;
        font-size: 0.62rem;
        letter-spacing: 1.2px;
    }
}

@media (max-width: 480px) {
    .dl-architecture {
        padding: 30px 14px 70px;
    }

    .dl-layer:nth-child(3) {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 8px;
    }

    .dl-layer:nth-child(3) .dl-node {
        padding: 10px 6px;
    }

    .dl-layer:nth-child(3) .dl-node .dl-node-icon {
        width: 32px;
        height: 32px;
    }

    .dl-layer:nth-child(3) .dl-node .dl-node-label {
        font-size: 0.72rem;
    }

    .dl-tech-pills {
        gap: 6px;
    }

    .dl-tech-pill {
        font-size: 0.7rem;
        padding: 5px 12px;
    }

    .dl-feedback-text {
        font-size: 0.55rem;
        padding: 6px 12px;
        letter-spacing: 1px;
    }
}

/* ============================================
    NEW: Skip Link (Accessibility)
    ============================================ */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: var(--accent-1);
    color: #fff;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    z-index: 10000;
    font-weight: 600;
    font-size: 0.9rem;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 16px;
}

/* ============================================
    NEW: Scroll Progress Bar
    ============================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: var(--gradient);
    z-index: 10001;
    transition: width 0.1s linear;
    box-shadow: 0 0 8px rgba(6, 182, 212, 0.5);
}

/* ============================================
    NEW: Availability Badge
    ============================================ */
.availability-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    font-size: 0.85rem;
    font-weight: 500;
    color: #22c55e;
    margin-bottom: 16px;
    width: fit-content;
}

.availability-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    animation: availabilityPulse 2s ease-in-out infinite;
}

@keyframes availabilityPulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

/* ============================================
    NEW: Project Screenshot Placeholder
    ============================================ */
.project-screenshot-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 48px 24px;
    margin: 24px 0;
    border: 2px dashed var(--glass-border);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text-muted);
    transition: all var(--transition-base);
}

.project-screenshot-placeholder:hover {
    border-color: var(--accent-1);
    color: var(--accent-1);
}

.project-screenshot-placeholder svg {
    width: 36px;
    height: 36px;
    opacity: 0.5;
}

.project-screenshot-placeholder span {
    font-size: 0.9rem;
    font-weight: 500;
}

/* ============================================
    NEW: Resume Preview Modal
    ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-content iframe {
    width: 100%;
    height: 85vh;
    border: none;
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--accent-1);
    color: #fff;
    border-color: var(--accent-1);
}

.modal-close svg {
    width: 18px;
    height: 18px;
}

/* ============================================
    NEW: Career Journey Timeline
    ============================================ */
.career-journey {
    padding: var(--section-padding);
    background: var(--bg-section-alt);
    transition: background-color var(--transition-theme);
}

.journey-timeline {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 0;
    margin-top: 60px;
    overflow-x: auto;
    padding-bottom: 40px;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-1) transparent;
}

.journey-timeline::-webkit-scrollbar {
    height: 6px;
}

.journey-timeline::-webkit-scrollbar-track {
    background: transparent;
}

.journey-timeline::-webkit-scrollbar-thumb {
    background: var(--accent-1);
    border-radius: 3px;
}

.journey-line {
    position: absolute;
    top: 60px; /* Aligned with dot center */
    left: 0;
    width: 100%;
    min-width: 2100px;
    height: 2px;
    background: var(--gradient);
    opacity: 0.2;
    border-radius: 2px;
    pointer-events: none;
    z-index: 1;
}

.journey-step {
    flex: 0 0 260px;
    position: relative;
    text-align: center;
    padding: 0 16px;
}

.journey-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--gradient);
    margin: 30px auto 24px; /* Space between year and card */
    position: relative;
    z-index: 2;
    box-shadow: 0 0 16px rgba(6, 182, 212, 0.4);
    transition: transform var(--transition-base);
    border: 3px solid var(--bg-section-alt); /* Hollow effect for the line to pass behind */
}

.journey-step:hover .journey-dot {
    transform: scale(1.3);
    box-shadow: 0 0 24px rgba(6, 182, 212, 0.6);
}

.journey-year {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-1);
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.journey-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 24px 20px;
    backdrop-filter: var(--glass-blur);
    transition: all var(--transition-base);
    height: 200px; /* Equal height for all cards in desktop view */
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    text-align: center;
}

.journey-card:hover {
    border-color: var(--glass-border-hover);
    box-shadow: var(--glow-accent);
    transform: translateY(-8px);
}

.journey-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.journey-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.journey-card .journey-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    background: var(--gradient-subtle);
    color: var(--accent-1);
    margin-top: 8px;
    letter-spacing: 0.5px;
}

@media (max-width: 1024px) {
    .journey-timeline {
        flex-direction: column;
        align-items: stretch;
        overflow-x: visible;
        margin-top: 40px;
    }
    .journey-line {
        top: 0;
        bottom: 0;
        left: 20px;
        width: 2px;
        height: auto;
        min-width: unset;
        right: auto;
    }
    .journey-step {
        flex: none;
        text-align: left;
        padding-left: 56px;
        padding-bottom: 40px;
    }
    .journey-dot {
        position: absolute;
        left: 12px;
        top: 0;
        margin: 0;
    }
    .journey-year {
        margin-bottom: 8px;
    }
    .journey-card {
        height: auto; /* Height auto for mobile since they stack */
        min-height: 140px;
        padding: 20px;
    }
}

/* ============================================
    NEW: Honeypot (hidden spam protection)
    ============================================ */
.honey {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    overflow: hidden;
}

/* ============================================
    NEW: Focus Visible Improvements
    ============================================ */
*:focus-visible {
    outline: 2px solid var(--accent-1);
    outline-offset: 2px;
    border-radius: 2px;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
    outline: none;
}

/* ============================================
    NEW: LinkedIn Updates Layout (4 in a row)
    ============================================ */
.updates-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

@media (max-width: 1024px) {
    .updates-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .updates-grid {
        grid-template-columns: 1fr;
    }
}