/* ============================================
   PORTFOLIO - DARK TERMINAL THEME
   ============================================ */

:root {
    /* Dark Theme Palette */
    --bg-page: #0B0F1A;
    --bg-card: #151D2E;
    --bg-inset: #0E1324;
    --bg-card-hover: #1C2840;

    /* Accents */
    --accent: #38BDF8;
    --accent-dim: #0C7EC2;
    --accent-glow: rgba(56, 189, 248, 0.12);
    --linkedin-blue: #0A66C2;
    --kaggle-blue: #20BEFF;
    --overlay-bg: rgba(0, 0, 0, 0.5);

    /* Text */
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-tertiary: #64748B;
    --text-muted: #475569;
    --text-inverted: #0B0F1A;

    /* Borders & Shadows */
    --border: #1E2D44;
    --border-hover: #2D4060;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing */
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* UI Elements */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: all 0.2s ease-in-out;
}

/* ============================================
   THEME VARIANTS — Full palette overrides
   ============================================ */

/* Forest — deep green undertone */
[data-theme="green"] {
    --bg-page: #0A1610;
    --bg-card: #132A1E;
    --bg-inset: #0E1F15;
    --bg-card-hover: #1A3828;
    --accent: #34D399;
    --accent-dim: #065F46;
    --accent-glow: rgba(52, 211, 153, 0.12);
    --text-primary: #ECFDF5;
    --text-secondary: #A7C4B8;
    --text-tertiary: #6B9580;
    --text-muted: #4A7A64;
    --text-inverted: #0A1610;
    --border: #1F3D2D;
    --border-hover: #2D5240;
}

/* Dusk — violet undertone */
[data-theme="purple"] {
    --bg-page: #110E1B;
    --bg-card: #1E1A2E;
    --bg-inset: #161224;
    --bg-card-hover: #2A2542;
    --accent: #A78BFA;
    --accent-dim: #6D28D9;
    --accent-glow: rgba(167, 139, 250, 0.12);
    --text-primary: #F5F3FF;
    --text-secondary: #B8B0D0;
    --text-tertiary: #857DA0;
    --text-muted: #5E5580;
    --text-inverted: #110E1B;
    --border: #2E2648;
    --border-hover: #3D3460;
}

/* Ember — warm amber undertone */
[data-theme="orange"] {
    --bg-page: #151008;
    --bg-card: #2A2010;
    --bg-inset: #1C170C;
    --bg-card-hover: #38301A;
    --accent: #FBBF24;
    --accent-dim: #B45309;
    --accent-glow: rgba(251, 191, 36, 0.12);
    --text-primary: #FFFBEB;
    --text-secondary: #C8B88A;
    --text-tertiary: #9A8A60;
    --text-muted: #706540;
    --text-inverted: #151008;
    --border: #3A3018;
    --border-hover: #4D4020;
}

/* Cherry — warm rose undertone */
[data-theme="rose"] {
    --bg-page: #160A10;
    --bg-card: #2A141E;
    --bg-inset: #1E0E16;
    --bg-card-hover: #3A1E2C;
    --accent: #FB7185;
    --accent-dim: #BE123C;
    --accent-glow: rgba(251, 113, 133, 0.12);
    --text-primary: #FFF1F2;
    --text-secondary: #C8A0AA;
    --text-tertiary: #9A707E;
    --text-muted: #704858;
    --text-inverted: #160A10;
    --border: #3A1F2C;
    --border-hover: #4D2838;
}

/* Ocean — deep navy undertone */
[data-theme="blue"] {
    --bg-page: #080E1C;
    --bg-card: #101D35;
    --bg-inset: #0C1628;
    --bg-card-hover: #1A2D4A;
    --accent: #60A5FA;
    --accent-dim: #1D4ED8;
    --accent-glow: rgba(96, 165, 250, 0.12);
    --text-primary: #EFF6FF;
    --text-secondary: #93AED0;
    --text-tertiary: #6484AA;
    --text-muted: #3E5E82;
    --text-inverted: #080E1C;
    --border: #1C3050;
    --border-hover: #243C62;
}

/* Obsidian — neutral dark + gold */
[data-theme="gold"] {
    --bg-page: #111111;
    --bg-card: #1C1C1C;
    --bg-inset: #161616;
    --bg-card-hover: #282828;
    --accent: #EAB308;
    --accent-dim: #A16207;
    --accent-glow: rgba(234, 179, 8, 0.10);
    --text-primary: #FAFAFA;
    --text-secondary: #A8A8A8;
    --text-tertiary: #737373;
    --text-muted: #525252;
    --text-inverted: #111111;
    --border: #2C2C2C;
    --border-hover: #3A3A3A;
}

/* Theme Switcher */
.theme-switcher {
    position: relative;
}

.theme-toggle-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    padding: 0.4rem 0.6rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.theme-toggle-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.theme-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    display: flex;
    gap: 0.375rem;
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.theme-swatch {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid transparent;
    background: var(--swatch);
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
}

.theme-swatch:hover {
    transform: scale(1.2);
}

.theme-swatch.active {
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px var(--bg-card);
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .cursor-glow,
    .scroll-progress,
    .hero-orbs { display: none !important; }
}

/* ============================================
   SCROLL PROGRESS BAR
   ============================================ */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--accent);
    z-index: 1001;
    box-shadow: 0 0 8px var(--accent-glow);
    will-change: width;
}

/* ============================================
   CURSOR GLOW SPOTLIGHT
   ============================================ */

.cursor-glow {
    position: fixed;
    inset: 0;
    z-index: 999;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    background: radial-gradient(
        600px circle at var(--glow-x, 50%) var(--glow-y, 50%),
        var(--accent-glow),
        transparent 40%
    );
}

.cursor-glow.active {
    opacity: 1;
}

@media (hover: none), (pointer: coarse) {
    .cursor-glow { display: none; }
}

/* ============================================
   ANIMATED GRADIENT ORBS
   ============================================ */

.hero-orbs {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.08;
    will-change: transform;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -10%;
    left: -5%;
    animation: orbFloat1 20s ease-in-out infinite;
}

.orb-2 {
    width: 350px;
    height: 350px;
    background: var(--accent-dim);
    top: 50%;
    right: -5%;
    animation: orbFloat2 17s ease-in-out infinite;
    animation-delay: -5s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    bottom: -15%;
    left: 40%;
    opacity: 0.05;
    animation: orbFloat3 22s ease-in-out infinite;
    animation-delay: -10s;
}

@keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(60px, 40px) scale(1.05); }
    66% { transform: translate(-30px, 60px) scale(0.95); }
}

@keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-50px, -30px) scale(1.08); }
    66% { transform: translate(40px, -50px) scale(0.92); }
}

@keyframes orbFloat3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, -40px) scale(1.03); }
    66% { transform: translate(-60px, 20px) scale(0.97); }
}

@media (max-width: 768px) {
    .orb {
        opacity: 0.05;
        filter: blur(60px);
    }
    .orb-1 { width: 300px; height: 300px; }
    .orb-2 { width: 200px; height: 200px; }
    .orb-3 { width: 250px; height: 250px; }
}

/* ============================================
   3D TILT CARDS
   ============================================ */

.featured-card {
    transform-style: preserve-3d;
}

.featured-card.tilting {
    transition: box-shadow 0.2s ease-in-out, border-color 0.2s ease-in-out;
}

.featured-card .featured-card-title {
    transform: translateZ(20px);
    transform-style: preserve-3d;
}

.featured-card .featured-metric {
    transform: translateZ(10px);
    transform-style: preserve-3d;
}

@media (hover: none), (pointer: coarse) {
    .featured-card { transform-style: flat; }
    .featured-card .featured-card-title,
    .featured-card .featured-metric { transform: none; }
}

/* ============================================
   MAGNETIC BUTTONS
   ============================================ */

.btn-primary.magnetic-active {
    transition: background 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

/* ============================================
   STAGGER REVEAL
   ============================================ */

.fade-in-up[style*="--stagger-delay"] {
    transition-delay: var(--stagger-delay, 0ms);
}

/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-page);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ============================================
   UTILITIES & ANIMATIONS
   ============================================ */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 5rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dim) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 800;
}

/* Scroll Animation Classes */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Shared pill/badge base */
.pill,
.section-tag,
.featured-category,
.patent-badge,
.experience-current-badge,
.signal-pill {
    display: inline-flex;
    align-items: center;
    border-radius: 100px;
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--accent);
}

/* Section Tag */
.section-tag {
    padding: 6px 16px;
    background: var(--bg-card);
    font-size: 0.6875rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-top: var(--space-4);
    margin-bottom: var(--space-4);
    letter-spacing: -0.03em;
}

.section-description {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Utility classes */
.menu-link-accent { color: var(--accent); }
.menu-link-kaggle { color: var(--kaggle-blue); }
.bento-item p + p { margin-top: 0.75rem; }
.btn-block { width: 100%; justify-content: center; }
.footer-cta-link { color: var(--accent); }
.btn-success { background: var(--accent); }
.btn-error { background: #ef4444; }
.body-no-scroll { overflow: hidden; }

/* ============================================
   NAVIGATION
   ============================================ */

nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: color-mix(in srgb, var(--bg-inset) 90%, transparent);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.04em;
    display: inline-flex;
    align-items: baseline;
}

.logo-dot {
    color: var(--accent);
    font-size: 1.5rem;
    animation: pulse-dot 2.5s infinite;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.875rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.nav-link.active {
    position: relative;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

.github-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    background: var(--accent);
    color: var(--text-inverted);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    transition: var(--transition);
}

.github-nav-btn:hover {
    background: var(--accent-dim);
    transform: translateY(-1px);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

#mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 2000;
}

.menu-overlay {
    position: absolute;
    inset: 0;
    background: var(--overlay-bg);
    backdrop-filter: blur(4px);
}

.menu-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 100%;
    background: var(--bg-inset);
    border-left: 1px solid var(--border);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3);
}

.hidden {
    display: none !important;
}

.menu-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
}

.menu-link:hover {
    color: var(--accent);
}

.close-btn {
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-container {
        padding: 1rem 1.5rem;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-simple {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    background: radial-gradient(ellipse at 30% 50%, var(--accent-glow) 0%, transparent 70%);
}

.hero-layout {
    display: flex;
    align-items: center;
    gap: 4rem;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 5rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
}

.hero-stats-sidebar {
    width: 400px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-shrink: 0;
}

.availability-tag,
.hero-notification-banner {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 6px 16px 6px 10px;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 100px;
    margin-bottom: var(--space-6);
    box-shadow: 0 4px 20px rgba(56, 189, 248, 0.12), 0 0 12px rgba(16, 185, 129, 0.08);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    max-width: 100%;
}

.hero-notification-banner:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.22), 0 0 18px rgba(16, 185, 129, 0.15);
}

.notification-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 3px 10px;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    color: #34D399;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.notification-message {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.notification-message strong {
    color: var(--text-primary);
    font-weight: 600;
}

.notification-cta {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
    padding-left: 0.5rem;
    border-left: 1px solid var(--border);
    transition: transform 0.2s ease;
}

.hero-notification-banner:hover .notification-cta {
    transform: translateX(3px);
}

@media (max-width: 640px) {
    .hero-notification-banner {
        flex-wrap: wrap;
        border-radius: var(--radius-md);
        padding: 8px 12px;
        gap: 0.5rem;
    }
    .notification-cta {
        border-left: none;
        padding-left: 0;
        margin-left: auto;
    }
}

.availability-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10B981;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse 2s infinite;
}

.availability-tag span {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: #34D399;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-4);
    letter-spacing: -0.04em;
    color: var(--text-primary);
}

.hero-name-gradient {
    background: linear-gradient(135deg, #FFFFFF 40%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* Interactive Terminal */
.hero-terminal {
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-6);
    max-width: 520px;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.red { background: #FF5F57; }
.terminal-dot.yellow { background: #FEBC2E; }
.terminal-dot.green { background: #28C840; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-left: 0.5rem;
}

.terminal-body {
    padding: 1rem 1.25rem;
    min-height: 120px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
}

.terminal-line {
    display: flex;
    align-items: center;
    gap: 0;
}

.terminal-prompt {
    color: var(--accent);
    font-weight: 700;
}

.terminal-typed {
    color: var(--text-secondary);
    font-weight: 500;
}

.terminal-response {
    color: var(--accent);
    padding-left: 1rem;
    margin-bottom: 0.5rem;
}

.terminal-cursor {
    color: var(--accent);
    font-weight: 700;
    animation: blink 1s step-end infinite;
}

/* Impact Card Hero (expanded) */
.impact-card-hero {
    flex: 1;
}

.impact-card-hero .stat-number {
    font-size: 2rem;
}

/* GitHub Slim Link */
.github-slim-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.github-slim-link:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.github-slim-link .fa-arrow-right {
    margin-left: auto;
    font-size: 0.75rem;
}

.hero-description {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: var(--space-8);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9375rem;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--text-inverted);
}

.btn-primary:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--text-muted);
}

.btn-secondary:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.hero-social-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.hero-social-links a {
    color: var(--text-tertiary);
    font-size: 1.25rem;
    transition: var(--transition);
}

.hero-social-links a:hover {
    color: var(--accent);
}

.social-divider {
    width: 1px;
    height: 20px;
    background: var(--text-muted);
}

.social-handle {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

/* Profile Photo */
.profile-photo-wrapper {
    display: flex;
    justify-content: center;
    position: relative;
    padding: 0.5rem;
}

.profile-photo-ring {
    position: relative;
    padding: 5px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.4), rgba(16, 185, 129, 0.25), rgba(56, 189, 248, 0.1));
    box-shadow: 0 0 25px var(--accent-glow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.profile-photo-ring:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 35px var(--accent-glow);
}

.profile-photo {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    border: 2px solid var(--border);
    transition: border-color 0.3s ease;
}

.profile-photo-ring:hover .profile-photo {
    border-color: var(--accent);
}

/* Stats Cards */
.stats-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.stats-card-header {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 1rem;
}

.stats-card-header i {
    font-size: 1.25rem;
    color: var(--accent);
}

.stats-card-header .card-title {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.stats-card-header .card-handle {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-tertiary);
}

.stats-grid {
    display: flex;
    gap: 0.75rem;
}

.stat-item {
    flex: 1;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.875rem 0.5rem;
    text-align: center;
    transition: var(--transition);
}

.stat-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
    display: block;
}

.stat-badge-text {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    font-size: 1.5rem;
}

.stat-badge-text i {
    font-size: 1.125rem;
    color: var(--kaggle-blue);
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    font-weight: 600;
    color: var(--text-tertiary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    display: block;
    margin-top: 0.25rem;
}

.impact-grid-2x2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.impact-grid-2x2 .stat-item {
    flex: unset;
}

@media (max-width: 1024px) {
    .hero-layout {
        flex-direction: column;
        padding: 0 1.5rem;
        text-align: center;
    }

    .hero-stats-sidebar {
        width: 100%;
        max-width: 500px;
        flex-direction: row;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-social-links {
        justify-content: center;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-terminal {
        max-width: 100%;
    }

    .availability-tag {
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 640px) {
    .hero-stats-sidebar {
        flex-direction: column;
    }
}

/* ============================================
   ABOUT SECTION (BENTO GRID)
   ============================================ */

.about-simple {
    background: var(--bg-inset);
}

.bento-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 1.25rem;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.bento-item {
    background: var(--bg-card);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.bento-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.bento-item h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.bento-item h3 i {
    color: var(--accent);
}

.bento-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

.bento-side {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

@media (max-width: 768px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   SKILLS (Pill Tags)
   ============================================ */

.skills-simple {
    padding: var(--space-20) 0;
}

.skills-rows {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.skills-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.skill-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    transition: var(--transition);
    cursor: default;
}

.skill-pill:hover {
    border-color: var(--accent);
    transform: scale(1.03);
}

.skill-pill.highlight {
    border-color: var(--accent);
}

.skill-pill.highlight .skill-name {
    color: var(--accent);
}

.skill-pill i {
    font-size: 1rem;
    color: var(--accent);
}

.skill-name {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   PROJECTS
   ============================================ */

.projects-simple {
    background: var(--bg-inset);
    padding: var(--space-20) 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.project-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.project-lang {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.project-lang span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-tertiary);
}

.project-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    flex-grow: 1;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: auto;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
}

.meta-item.starred {
    color: var(--accent);
}

.meta-item i {
    font-size: 0.875rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--bg-inset);
    color: var(--text-tertiary);
    border: 1px solid var(--border);
    border-radius: 2rem;
    font-size: 0.6875rem;
    font-weight: 500;
    font-family: var(--font-mono);
}

.view-all-btn {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: var(--space-12);
    padding: 0 var(--space-6);
}

.github-repos-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-tertiary);
    transition: var(--transition);
    padding: 0.875rem 0;
}

.github-repos-link:hover {
    color: var(--accent);
}

/* Mid-page CTA */
.mid-page-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-top: var(--space-12);
    padding: var(--space-8) var(--space-6);
    border-top: 1px solid var(--border);
}

.cta-text {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

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

@media (max-width: 640px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   EXPERIENCE
   ============================================ */

.experience-simple {
    padding: var(--space-20) 0;
}

.experience-list {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.experience-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    padding-left: 1.75rem;
    border-bottom: 1px solid var(--border);
    border-left: 3px solid var(--border);
    transition: var(--transition);
}

.experience-item.experience-current {
    border-left-color: var(--accent);
    background: var(--accent-glow);
}

.experience-item:last-child {
    border-bottom: none;
}

.experience-item:hover {
    transform: translateX(4px);
}

.experience-left {
    width: 200px;
    flex-shrink: 0;
}

.experience-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
}

.experience-duration {
    font-size: 0.6875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.experience-item:not(:first-child) .experience-date {
    color: var(--text-tertiary);
}

.experience-company {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-tertiary);
    margin-top: 0.25rem;
}

.experience-right {
    flex: 1;
}

.experience-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.experience-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

.experience-current-badge {
    padding: 2px 8px;
    background: var(--accent-glow);
    font-size: 0.5625rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-left: 0.5rem;
    vertical-align: middle;
}

.experience-bullets {
    list-style: none;
    padding: 0;
    margin-top: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.experience-bullets li {
    position: relative;
    padding-left: 1.25rem;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    line-height: 1.6;
}

.experience-bullets li::before {
    content: '\25B8';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 0.75rem;
}

@media (max-width: 640px) {
    .experience-item {
        flex-direction: column;
        gap: 0.5rem;
    }

    .experience-left {
        width: auto;
    }
}

/* ============================================
   EDUCATION & ACHIEVEMENTS
   ============================================ */

.education-simple {
    background: var(--bg-inset);
    padding: var(--space-20) 0;
}

.education-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.education-card {
    display: flex;
    gap: 1.5rem;
    padding: 1.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    transition: var(--transition);
}

.education-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

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

.edu-details {
    flex: 1;
}

.edu-degree {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.edu-institution {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.edu-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 0.75rem;
}

.edu-date,
.edu-grade {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.edu-grade {
    color: var(--accent);
}

.edu-specialization {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--accent-glow);
    color: var(--accent);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.achievement-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.achievement-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.achievement-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--bg-inset);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--accent);
    font-size: 0.875rem;
}

.achievement-item span {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .education-card {
        flex-direction: column;
        gap: 1rem;
    }

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

    .edu-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* ============================================
   PATENTS
   ============================================ */

.patents-simple {
    background: var(--bg-inset);
    padding: var(--space-20) 0;
}

.patents-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.patent-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: var(--transition);
}

.patent-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.patent-badge {
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--accent);
    width: fit-content;
}

.patent-badge span {
    font-size: 0.625rem;
}

.patent-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.patent-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.patent-number {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .patents-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   CONTACT
   ============================================ */

.contact-simple {
    padding: var(--space-20) 0;
}

.contact-content {
    max-width: 500px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition);
    font-family: var(--font-sans);
}

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

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

/* Contact Alternatives */
.contact-alternatives {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.contact-alt-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-alt-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.contact-alt-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.contact-alt-item i {
    color: var(--accent);
}

.contact-response-time {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-muted);
}

.contact-response-time i {
    color: var(--accent);
    font-size: 0.625rem;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    background: var(--bg-inset);
    border-top: 1px solid var(--border);
    padding: 2.5rem 0;
    text-align: center;
}

.footer-socials {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.footer-socials a {
    color: var(--text-tertiary);
    font-size: 1.5rem;
    transition: var(--transition);
}

.footer-socials a:hover {
    color: var(--accent);
}

footer p {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

footer .footer-tagline {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ============================================
   SECTION PADDING
   ============================================ */

section {
    padding: var(--space-20) 0;
}

/* ============================================
   RESPONSIVE GENERAL
   ============================================ */

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

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

/* GitHub repo loading skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-lg);
    height: 200px;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ============================================
   FEATURED PROJECTS GRID
   ============================================ */

.featured-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.featured-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-family: inherit;
    color: inherit;
    width: 100%;
}

.featured-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.featured-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.featured-card.is-flagship {
    grid-column: 1 / -1;
    border-color: rgba(56, 189, 248, 0.35);
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.7));
    position: relative;
    overflow: hidden;
}

.featured-card.is-flagship::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #10B981, var(--accent), #10B981);
}

.featured-card.is-flagship:hover {
    border-color: var(--accent);
    box-shadow: 0 12px 32px rgba(56, 189, 248, 0.15), 0 0 20px rgba(16, 185, 129, 0.1);
}

.featured-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 3px 10px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: #34D399;
    letter-spacing: 0.05em;
    margin-left: 0.75rem;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #10B981;
    display: inline-block;
}

.badge-dot.pulse {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse 2s infinite;
}

.card-demo-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.9rem;
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid var(--accent);
    border-radius: var(--radius-sm);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.card-demo-btn:hover {
    background: var(--accent);
    color: var(--bg-base);
    box-shadow: 0 0 12px var(--accent-glow);
}

.demo-live-launch {
    padding: 1.5rem;
    background: var(--bg-inset);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
}

.demo-live-text {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin: 0;
}

.btn-launch-demo {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
}

.featured-card-header {
    display: flex;
    align-items: center;
}

.featured-category {
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: var(--accent-glow);
    font-size: 0.6875rem;
    letter-spacing: 0.5px;
}

.featured-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.featured-card-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    flex-grow: 1;
}

.featured-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.featured-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.featured-number {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--border-hover);
    margin-left: auto;
    line-height: 1;
}

.featured-card-impact-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.featured-metric {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--accent);
}

.featured-metric i {
    font-size: 0.625rem;
}

.featured-view-hint {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.featured-card:hover .featured-view-hint {
    color: var(--accent);
}

@media (max-width: 768px) {
    .featured-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   ALL PROJECTS VIEW
   ============================================ */

.all-projects-view {
    position: fixed;
    inset: 0;
    z-index: 1500;
    background: var(--bg-page);
    overflow-y: auto;
    animation: modalFadeIn 0.3s ease;
}

.all-projects-header {
    position: sticky;
    top: 0;
    background: color-mix(in srgb, var(--bg-page) 95%, transparent);
    backdrop-filter: blur(12px);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

.all-projects-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem var(--space-6) var(--space-12);
}

.all-projects-filters {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--accent);
    color: var(--bg-page);
    border-color: var(--accent);
    font-weight: 600;
}

.all-projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: var(--space-8);
}

.all-project-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: var(--transition);
}

.all-project-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.all-project-card.clickable {
    cursor: pointer;
}

.all-project-card.clickable:hover {
    border-color: var(--accent);
}

.all-project-card-footer {
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.all-project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.all-project-card-number {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--border-hover);
}

.all-project-card-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.all-project-card-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

.all-project-card-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.all-project-metric {
    padding: 0.375rem 0.625rem;
    background: var(--bg-inset);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--accent);
}

.all-project-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

@media (max-width: 768px) {
    .all-projects-grid {
        grid-template-columns: 1fr;
    }

    .all-projects-filters {
        gap: 0.5rem;
    }

    .filter-btn {
        font-size: 0.6875rem;
        padding: 0.375rem 0.875rem;
    }
}

/* ============================================
   PROJECT DETAIL MODAL
   ============================================ */

.project-modal {
    position: fixed;
    inset: 0;
    z-index: 1500;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.project-modal .modal-overlay {
    position: absolute;
    inset: 0;
    background: var(--overlay-bg);
    backdrop-filter: blur(4px);
}

.modal-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 720px;
    height: 100%;
    background: var(--bg-page);
    border-left: 1px solid var(--border);
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
}

@keyframes modalSlideIn {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

.modal-header {
    position: sticky;
    top: 0;
    background: color-mix(in srgb, var(--bg-page) 95%, transparent);
    backdrop-filter: blur(12px);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

.modal-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    padding: 0.5rem 0;
    transition: var(--transition);
}

.modal-back-btn:hover {
    color: var(--accent);
}

.modal-body {
    padding: 2rem;
}

.modal-category {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 1rem;
    background: var(--accent-glow);
    color: var(--accent);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.modal-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.modal-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.metric-card i {
    font-size: 1.25rem;
    color: var(--accent);
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.metric-label {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--text-tertiary);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.modal-section {
    margin-bottom: 2rem;
}

.modal-section-title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-family: var(--font-mono);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-description p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.modal-description p:last-child {
    margin-bottom: 0;
}

.modal-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
}

.tech-name {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.tech-category {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.modal-architecture {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.arch-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-width: 90px;
    text-align: center;
}

.arch-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.125rem;
}

.arch-label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-secondary);
    line-height: 1.3;
}

.arch-arrow {
    color: var(--text-muted);
    font-size: 0.75rem;
    flex-shrink: 0;
}

.modal-highlights {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.highlight-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.highlight-marker {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--accent);
    font-size: 0.875rem;
    flex-shrink: 0;
    line-height: 1.6;
}

.highlight-item span:last-child {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Demo Video */
.demo-video {
    width: 100%;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--bg-card);
}

/* Competencies / Senior Signals */
.modal-signals {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
}

.signal-pill {
    gap: 0.5rem;
    padding: 0.625rem 1.125rem;
    background: var(--accent-glow);
    border: 1px solid var(--accent-dim);
    transition: var(--transition);
}

.signal-pill i {
    font-size: 0.875rem;
}

.signal-pill span {
    font-size: 0.8125rem;
}

@media (max-width: 768px) {
    .modal-panel {
        max-width: 100%;
        border-left: none;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .modal-title {
        font-size: 1.5rem;
    }

    .modal-metrics {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-architecture {
        flex-wrap: wrap;
        justify-content: center;
    }

    .arch-arrow {
        display: none;
    }
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--text-inverted);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background 0.2s ease;
    z-index: 900;
    box-shadow: 0 4px 12px var(--accent-glow);
}

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

.back-to-top:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
}

/* Floating Project Notification Toast */
.floating-project-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 990;
    max-width: 340px;
    background: rgba(15, 23, 42, 0.94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 24px rgba(56, 189, 248, 0.15);
    transform: translateY(120%);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
    pointer-events: none;
}

.floating-project-toast.toast-visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.toast-close {
    position: absolute;
    top: 10px;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: 1.35rem;
    line-height: 1;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s ease;
}

.toast-close:hover {
    color: var(--text-primary);
}

.toast-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.toast-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #34D399;
    text-transform: uppercase;
}

.toast-title {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.375rem 0;
}

.toast-desc {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0 0 1rem 0;
}

.toast-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(16, 185, 129, 0.15));
    border: 1px solid var(--accent);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.toast-cta-btn:hover {
    background: var(--accent);
    color: var(--bg-base);
    box-shadow: 0 0 16px var(--accent-glow);
}

@media (max-width: 480px) {
    .floating-project-toast {
        left: 16px;
        right: 16px;
        bottom: 16px;
        max-width: none;
    }
}