/* ==========================================
   MOHAMED DOUMBIA PORTFOLIO
   Style: KokonutUI-inspired — Ultra Dark Minimal
   ========================================== */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700;800&display=swap');

/* Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: 'Geist', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.25s ease, color 0.25s ease;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* Container */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ==========================================
   VARIABLES
   ========================================== */
/**
 * Jeton de thème sombre (défaut). Les palettes claires s’appliquent via
 * `prefers-color-scheme` lorsque `data-theme="auto"`, ou `data-theme="light"`.
 */
:root {
    color-scheme: dark;
    --bg: #000000;
    --bg-elevated: #09090b;
    --surface: #18181b;
    --surface-hover: #1f1f23;
    --border: rgba(255,255,255,0.08);
    --border-hover: rgba(255,255,255,0.15);
    --text: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    --accent-pink: #ff3366;
    --accent-blue: #6366f1;
    --accent-cyan: #06b6d4;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --navbar-bg: rgba(0,0,0,0.72);
    --mobile-menu-bg: rgba(0,0,0,0.95);
    --announcement-bg: #121212;
    --code-pre: #cfcfcf;
    --form-focus-shadow: rgba(255,255,255,0.04);
    --btn-white-bg: #ffffff;
    --btn-white-fg: #000000;
    --btn-white-border: #ffffff;
    --btn-white-hover-bg: #e5e5e5;
    --btn-white-hover-border: #e5e5e5;
    --logo-accent-muted: #a1a1aa;
    --hero-glow-blue: rgba(99,102,241,0.07);
    --hero-glow-cyan: rgba(6,182,212,0.04);
    --footer-watermark: rgba(255,255,255,0.015);
    --scrollbar-thumb: #27272a;
    --scrollbar-thumb-hover: #3f3f46;
    --selection-bg: rgba(99,102,241,0.3);
    --selection-color: var(--text);
    --skill-icon-overlay: rgba(255,255,255,0.04);
    --exp-date-chip-bg: rgba(255,255,255,0.04);
    --scroll-progress-bg: rgba(255,255,255,0.55);
    --select-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%2352525b' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
}

/* Thème clair automatique selon les réglages du système (mode Auto). */
@media (prefers-color-scheme: light) {
    :root:not([data-theme]),
    :root[data-theme="auto"] {
        color-scheme: light;
        --bg: #fafafa;
        --bg-elevated: #f4f4f5;
        --surface: #ffffff;
        --surface-hover: #ebebed;
        --border: rgba(0,0,0,0.08);
        --border-hover: rgba(0,0,0,0.18);
        --text: #09090b;
        --text-secondary: #52525c;
        --text-muted: #71717a;
        --navbar-bg: rgba(255,255,255,0.86);
        --mobile-menu-bg: rgba(255,255,255,0.98);
        --announcement-bg: #e4e4e7;
        --code-pre: #3f3f46;
        --form-focus-shadow: rgba(0,0,0,0.06);
        --btn-white-bg: #09090b;
        --btn-white-fg: #fafafa;
        --btn-white-border: #09090b;
        --btn-white-hover-bg: #27272a;
        --btn-white-hover-border: #27272a;
        --logo-accent-muted: #71717a;
        --hero-glow-blue: rgba(99,102,241,0.11);
        --hero-glow-cyan: rgba(6,182,212,0.08);
        --footer-watermark: rgba(9,9,11,0.05);
        --scrollbar-thumb: #d4d4d8;
        --scrollbar-thumb-hover: #a1a1aa;
        --selection-bg: rgba(99,102,241,0.22);
        --skill-icon-overlay: rgba(0,0,0,0.06);
        --exp-date-chip-bg: rgba(0,0,0,0.05);
        --scroll-progress-bg: rgba(9,9,11,0.45);
        --select-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%2371717a' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
    }
}

/* Forçage manuel : thème clair. */
:root[data-theme="light"] {
    color-scheme: light;
    --bg: #fafafa;
    --bg-elevated: #f4f4f5;
    --surface: #ffffff;
    --surface-hover: #ebebed;
    --border: rgba(0,0,0,0.08);
    --border-hover: rgba(0,0,0,0.18);
    --text: #09090b;
    --text-secondary: #52525c;
    --text-muted: #71717a;
    --navbar-bg: rgba(255,255,255,0.86);
    --mobile-menu-bg: rgba(255,255,255,0.98);
    --announcement-bg: #e4e4e7;
    --code-pre: #3f3f46;
    --form-focus-shadow: rgba(0,0,0,0.06);
    --btn-white-bg: #09090b;
    --btn-white-fg: #fafafa;
    --btn-white-border: #09090b;
    --btn-white-hover-bg: #27272a;
    --btn-white-hover-border: #27272a;
    --logo-accent-muted: #71717a;
    --hero-glow-blue: rgba(99,102,241,0.11);
    --hero-glow-cyan: rgba(6,182,212,0.08);
    --footer-watermark: rgba(9,9,11,0.05);
    --scrollbar-thumb: #d4d4d8;
    --scrollbar-thumb-hover: #a1a1aa;
    --selection-bg: rgba(99,102,241,0.22);
    --skill-icon-overlay: rgba(0,0,0,0.06);
    --exp-date-chip-bg: rgba(0,0,0,0.05);
    --scroll-progress-bg: rgba(9,9,11,0.45);
    --select-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%2371717a' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
}

/* Forçage manuel : thème sombre (identique au défaut). */
:root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #000000;
    --bg-elevated: #09090b;
    --surface: #18181b;
    --surface-hover: #1f1f23;
    --border: rgba(255,255,255,0.08);
    --border-hover: rgba(255,255,255,0.15);
    --text: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    --navbar-bg: rgba(0,0,0,0.72);
    --mobile-menu-bg: rgba(0,0,0,0.95);
    --announcement-bg: #121212;
    --code-pre: #cfcfcf;
    --form-focus-shadow: rgba(255,255,255,0.04);
    --btn-white-bg: #ffffff;
    --btn-white-fg: #000000;
    --btn-white-border: #ffffff;
    --btn-white-hover-bg: #e5e5e5;
    --btn-white-hover-border: #e5e5e5;
    --logo-accent-muted: #a1a1aa;
    --hero-glow-blue: rgba(99,102,241,0.07);
    --hero-glow-cyan: rgba(6,182,212,0.04);
    --footer-watermark: rgba(255,255,255,0.015);
    --scrollbar-thumb: #27272a;
    --scrollbar-thumb-hover: #3f3f46;
    --selection-bg: rgba(99,102,241,0.3);
    --skill-icon-overlay: rgba(255,255,255,0.04);
    --exp-date-chip-bg: rgba(255,255,255,0.04);
    --scroll-progress-bg: rgba(255,255,255,0.55);
    --select-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%2352525b' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
}

/* ==========================================
   ANNOUNCEMENT BAR
   ========================================== */
.announcement-bar {
    background: var(--announcement-bg);
    border-bottom: 1px solid var(--border);
    padding: 10px 24px;
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
}
.announcement-bar:hover { color: var(--text); }
.announcement-bar svg { opacity: 0.6; flex-shrink: 0; }
.announcement-contact-link {
    color: inherit;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.announcement-contact-link:hover { color: var(--text); }

/* ==========================================
   NAVIGATION
   ========================================== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: var(--navbar-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: transform 0.3s ease, background-color 0.25s ease;
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

/**
 * Logo selon le thème : `--night` = mode nuit (fond sombre) → momoledev-logo-dark-transp.svg ;
 * `--day` = mode jour (fond clair) → momoledev-logo-dark-black.svg.
 */
.logo-brand-img {
    height: 28px;
    width: auto;
    max-width: min(160px, 44vw);
    object-fit: contain;
    display: none;
    -webkit-user-drag: none;
    user-select: none;
}

.footer-brand .logo-brand-img {
    height: 34px;
    max-width: min(200px, 70vw);
}

/* Mode nuit : thème sombre explicite ou défaut sans attribut. */
:root:not([data-theme]) .logo-brand-img--night,
:root[data-theme="dark"] .logo-brand-img--night {
    display: block;
}
:root:not([data-theme]) .logo-brand-img--day,
:root[data-theme="dark"] .logo-brand-img--day {
    display: none;
}

/* Mode jour : thème clair forcé. */
:root[data-theme="light"] .logo-brand-img--day {
    display: block;
}
:root[data-theme="light"] .logo-brand-img--night {
    display: none;
}

/* Mode auto : nuit par défaut ; si le système est en « clair », passer au logo jour. */
:root[data-theme="auto"] .logo-brand-img--night {
    display: block;
}
:root[data-theme="auto"] .logo-brand-img--day {
    display: none;
}

@media (prefers-color-scheme: light) {
    :root[data-theme="auto"] .logo-brand-img--day {
        display: block;
    }
    :root[data-theme="auto"] .logo-brand-img--night {
        display: none;
    }
}

.nav-center { display: flex; gap: 6px; }
.nav-link {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}
.nav-link:hover, .nav-link.active {
    color: var(--text);
    background: var(--surface);
}
.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-social { display: flex; align-items: center; gap: 8px; }

/**
 * Contrôle du thème : bascule auto (système) → clair → sombre.
 * @see script.js — `initThemeToggle`
 */
.theme-toggle {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s ease, background 0.2s ease;
}
.theme-toggle:hover {
    color: var(--text);
    background: var(--surface);
}
.theme-toggle:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}
.theme-toggle-icon {
    display: none;
    align-items: center;
    justify-content: center;
}
.theme-toggle:not([data-preference]) .theme-icon-auto {
    display: flex;
}
.theme-toggle[data-preference="auto"] .theme-icon-auto,
.theme-toggle[data-preference="light"] .theme-icon-sun,
.theme-toggle[data-preference="dark"] .theme-icon-moon {
    display: flex;
}

.nav-icon {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all 0.2s ease;
}
.nav-icon:hover { color: var(--text); background: var(--surface); }
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none; border: none; cursor: pointer;
    padding: 8px;
}
.hamburger span {
    display: block; width: 20px; height: 1.5px; background: var(--text); border-radius: 1px;
    transition: all 0.3s ease;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed; top: 64px; left: 0; right: 0;
    background: var(--mobile-menu-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    display: flex; flex-direction: column; gap: 4px;
    transform: translateY(-100%); opacity: 0; pointer-events: none;
    transition: all 0.3s ease;
    z-index: 999;
}
.mobile-menu.open { transform: translateY(0); opacity: 1; pointer-events: all; }
.mobile-link {
    padding: 12px 16px;
    font-size: 0.9rem; font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}
.mobile-link:hover { color: var(--text); background: var(--surface); }

/* Navbar Hide on Scroll */
.nav-hidden { transform: translateY(-100%); }

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem; font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer; transition: all 0.2s ease;
    white-space: nowrap;
}
.btn-white {
    background: var(--btn-white-bg);
    color: var(--btn-white-fg);
    border-color: var(--btn-white-border);
}
.btn-white:hover {
    background: var(--btn-white-hover-bg);
    border-color: var(--btn-white-hover-border);
}
.btn-outline {
    background: transparent; color: var(--text-secondary);
    border-color: var(--border);
}
.btn-outline:hover { border-color: var(--border-hover); color: var(--text); }
.btn-full { width: 100%; justify-content: center; }

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 80px 24px 40px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse 60% 50% at 50% 0%, var(--hero-glow-blue) 0%, transparent 50%),
                radial-gradient(ellipse 40% 40% at 80% 80%, var(--hero-glow-cyan) 0%, transparent 50%);
    pointer-events: none;
}
.hero-container {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 64px; align-items: center; width: 100%;
    position: relative; z-index: 1;
}
.hero-left { display: flex; flex-direction: column; gap: 24px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 6px;
    width: fit-content;
    padding: 6px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.78rem; font-weight: 500; color: var(--text-secondary);
    transition: all 0.2s ease;
}
.hero-badge:hover { border-color: var(--border-hover); color: var(--text); }
.hero-badge svg { opacity: 0.6; width: 10px; height: 10px; }
.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
}
.title-line { display: block; }
.title-line.accent { color: var(--text-secondary); }
.title-line.muted { color: var(--text-muted); }
.hero-desc {
    font-size: 1.05rem; color: var(--text-secondary);
    max-width: 440px; line-height: 1.7;
}
.hero-desc strong { color: var(--text); font-weight: 600; }
.hero-actions { display: flex; gap: 12px; margin-top: 8px; }

/* Hero Right - Bento Grid */
.hero-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 16px;
    position: relative;
}
.bento-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}
.bento-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}
.card-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}
.dots { display: flex; gap: 6px; }
.dots span { width: 10px; height: 10px; border-radius: 50%; }
.dots span:nth-child(1) { background: #ef4444; }
.dots span:nth-child(2) { background: #f59e0b; }
.dots span:nth-child(3) { background: #22c55e; }
.card-tag { font-size: 0.7rem; color: var(--text-muted); font-family: monospace; }
.card-body { padding: 16px; overflow-x: auto; }
.card-body pre { font-family: 'JetBrains Mono', 'Fira Code', monospace; font-size: 0.75rem; line-height: 1.7; color: var(--code-pre); }
.card-body .k { color: #c084fc; }
.card-body .c { color: #facc15; }
.card-body .f { color: #60a5fa; }
.card-body .s { color: #4ade80; }
.card-body .v { color: #fca5a5; }
.card-code { grid-row: span 2; }
.card-stats .stats-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 20px;
}
.stat-item { text-align: center; }
.stat-num { display: block; font-size: 1.4rem; font-weight: 700; color: var(--text); }
.stat-lbl { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.card-tag {
    position: relative;
    padding: 24px 20px;
    min-height: 120px;
    display: flex; flex-direction: column; justify-content: flex-end;
    overflow: hidden;
}
.tag-glow {
    position: absolute; top: -30px; right: -30px;
    width: 100px; height: 100px; border-radius: 50%;
    background: rgba(255,51,102,0.15);
    filter: blur(30px);
}
.tag-content { position: relative; z-index: 1; }
.tag-label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text); }
.tag-sublabel { font-size: 0.72rem; color: var(--text-muted); }
.card-terminal { padding: 16px; }
.terminal-header {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border);
}
.terminal-prompt { color: #22c55e; font-family: monospace; font-size: 0.8rem; }
.terminal-cmd { color: var(--text-secondary); font-family: monospace; font-size: 0.8rem; }
.terminal-body { display: flex; flex-direction: column; gap: 6px; }
.terminal-line { font-size: 0.78rem; color: var(--text-secondary); font-family: monospace; }
.term-icon { color: #22c55e; margin-right: 4px; }
.terminal-cursor {
    font-family: monospace; font-size: 0.8rem; color: #22c55e;
    animation: blink 1s step-end infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ==========================================
   STATS BAR
   ========================================== */
.stats-section {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 48px 0;
    background: var(--bg-elevated);
}
.stats-bar-container {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
}
.stat-block { text-align: center; }
.stat-value { display: block; font-size: 2.2rem; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.stat-name { font-size: 0.82rem; color: var(--text-muted); margin-top: 4px; }

/* ==========================================
   SECTION STYLES
   ========================================== */
.section-tag {
    display: inline-block;
    padding: 5px 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.75rem; font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.05em;
    margin-bottom: 16px;
}
.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 12px;
}
.section-desc {
    font-size: 1rem; color: var(--text-secondary);
    max-width: 500px;
}
.section-header { margin-bottom: 56px; }

/* ==========================================
   ABOUT SECTION
   ========================================== */
.about { padding: 120px 0; background: var(--bg); }
.about-layout {
    display: grid; grid-template-columns: 1fr 1.3fr; gap: 80px; align-items: start;
}
.about-right { display: flex; flex-direction: column; gap: 20px; }
.about-right p { color: var(--text-secondary); font-size: 1.02rem; line-height: 1.75; }
.about-right strong { color: var(--text); font-weight: 500; }
.about-links { display: flex; flex-direction: column; gap: 10px; margin-top: 8px; }
.link-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
    transition: all 0.2s ease;
}
.link-item:hover { border-color: var(--border-hover); color: var(--text); }
.link-icon { color: var(--text-muted); }

/* ==========================================
   SKILLS SECTION
   ========================================== */
.skills { padding: 120px 0; background: var(--bg-elevated); border-top: 1px solid var(--border); }
.skills .section-header { text-align: center; display: flex; flex-direction: column; align-items: center; }
.skills-bento {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
    max-width: 800px; margin: 0 auto;
}
.skill-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.skill-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--skill-color); opacity: 0.5;
    transition: opacity 0.3s ease;
}
.skill-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}
.skill-card:hover::before { opacity: 1; }
.skill-card-header {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 20px;
}
.skill-icon {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--skill-icon-overlay);
    color: var(--skill-color, var(--text));
}
.skill-card-header h3 { font-size: 1rem; font-weight: 600; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tag {
    padding: 5px 12px;
    font-size: 0.78rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all 0.2s ease;
}
.skill-tag:hover { color: var(--text); border-color: var(--border-hover); }
.skill-tag.master { background: rgba(99,102,241,0.1); border-color: rgba(99,102,241,0.2); color: #a5b4fc; }
.skill-tag.strong { background: rgba(6,182,212,0.08); border-color: rgba(6,182,212,0.15); color: #67e8f9; }
.skill-tag.good { background: rgba(34,197,94,0.08); border-color: rgba(34,197,94,0.15); color: #86efac; }

/* Tech Marquee */
.tech-marquee {
    overflow: hidden; margin-top: 56px;
    border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
    padding: 20px 0; background: var(--bg);
}
.marquee-inner {
    display: flex; gap: 40px;
    width: max-content;
    animation: marquee-scroll 30s linear infinite;
}
.marquee-inner span {
    font-size: 0.82rem; font-weight: 500;
    color: var(--text-muted); white-space: nowrap;
}
@keyframes marquee-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ==========================================
   EXPERIENCE SECTION
   ========================================== */
.experience { padding: 120px 0; background: var(--bg); border-top: 1px solid var(--border); }
.experience .section-header { text-align: center; display: flex; flex-direction: column; align-items: center; }
.experience-bento {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 900px; margin: 0 auto;
}
.exp-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all 0.3s ease;
    display: flex; flex-direction: column; gap: 16px;
}
.exp-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.exp-card.featured { grid-column: span 2; }
.exp-header {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 12px; flex-wrap: wrap;
}
.exp-company { display: flex; align-items: center; gap: 14px; }
.exp-logo {
    width: 40px; height: 40px; border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.9rem; color: var(--text); flex-shrink: 0;
}
.exp-name { font-size: 1.05rem; font-weight: 600; }
.exp-role { font-size: 0.8rem; color: var(--text-muted); }
.exp-date {
    padding: 4px 10px;
    background: var(--exp-date-chip-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.72rem; font-weight: 500;
    color: var(--text-muted); white-space: nowrap;
}
.exp-date.current { color: #22c55e; border-color: rgba(34,197,94,0.3); background: rgba(34,197,94,0.08); }
.exp-body { flex: 1; }
.exp-body p { color: var(--text-secondary); font-size: 0.88rem; line-height: 1.65; margin-bottom: 12px; }
.exp-highlights { display: flex; flex-wrap: wrap; gap: 6px; }
.exp-point {
    font-size: 0.75rem; color: var(--text-secondary);
    padding: 4px 10px;
    background: var(--bg-elevated);
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
}
.exp-footer { display: flex; flex-wrap: wrap; gap: 6px; padding-top: 12px; border-top: 1px solid var(--border); }
.exp-tag {
    font-size: 0.72rem; color: var(--text-muted);
    font-family: 'Geist Mono', monospace;
}

/* ==========================================
   PROJECTS SECTION
   ========================================== */
.projects { padding: 120px 0; background: var(--bg-elevated); border-top: 1px solid var(--border); }
.projects .section-header { text-align: center; display: flex; flex-direction: column; align-items: center; }
.projects-bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex; flex-direction: column;
}
.project-card:hover { border-color: var(--border-hover); transform: translateY(-3px); }
.project-card.large { grid-column: span 2; }
.project-visual {
    height: 160px; display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
}
.project-visual svg { position: relative; z-index: 1; opacity: 0.8; }
.project-visual::after {
    content: '';
    position: absolute; bottom: 0; left: 0; right: 0; height: 50%;
    background: linear-gradient(to top, var(--surface), transparent);
}
.project-info { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.project-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.project-tag {
    font-size: 0.7rem; font-weight: 500; color: var(--text-muted);
    padding: 3px 8px; background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: var(--radius-full);
}
.project-status {
    font-size: 0.7rem; font-weight: 500; color: #22c55e;
    padding: 3px 8px; background: rgba(34,197,94,0.08);
    border: 1px solid rgba(34,197,94,0.2); border-radius: var(--radius-full);
}
.project-title { font-size: 1.05rem; font-weight: 600; }
.project-desc { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; flex: 1; }

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact { padding: 120px 0; background: var(--bg); border-top: 1px solid var(--border); }
.contact-grid {
    display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; align-items: start;
}
.contact-left { display: flex; flex-direction: column; gap: 16px; }
.contact-subtitle { color: var(--text-secondary); font-size: 1rem; line-height: 1.7; }
.contact-details { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.contact-row {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.88rem;
    transition: all 0.2s ease;
}
.contact-row:hover { border-color: var(--border-hover); color: var(--text); }
.contact-icon { color: var(--text-muted); display: flex; align-items: center; }

/* Contact Form */
.contact-right {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
}
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field label { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.form-field input, .form-field select, .form-field textarea {
    padding: 12px 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text); font-family: inherit; font-size: 0.88rem;
    outline: none; transition: all 0.2s ease;
    width: 100%;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
    border-color: var(--border-hover);
    box-shadow: 0 0 0 3px var(--form-focus-shadow);
}
.form-field input::placeholder, .form-field textarea::placeholder { color: var(--text-muted); }
.form-field select {
    appearance: none;
    background-image: var(--select-chevron);
    background-repeat: no-repeat; background-position: right 14px center;
    padding-right: 36px;
}
.form-field option { background: var(--surface); color: var(--text); }
.form-field textarea { resize: vertical; min-height: 100px; }

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    position: relative;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    padding: 80px 0 32px;
    overflow: hidden;
}
.footer-bg {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    font-size: clamp(6rem, 15vw, 14rem); font-weight: 800;
    color: var(--footer-watermark);
    letter-spacing: -0.05em;
    white-space: nowrap; pointer-events: none;
    user-select: none;
}
.footer .container { position: relative; z-index: 1; }
.footer-top {
    display: grid; grid-template-columns: 1.3fr 1fr; gap: 80px; margin-bottom: 60px;
}
.footer-brand .footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 0;
    margin-bottom: 16px;
}
.footer-desc { font-size: 0.88rem; color: var(--text-muted); max-width: 320px; line-height: 1.6; }
.footer-nav { display: flex; gap: 60px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px; }
.footer-col a { font-size: 0.85rem; color: var(--text-secondary); transition: color 0.2s ease; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 24px; border-top: 1px solid var(--border);
    color: var(--text-muted); font-size: 0.78rem;
    flex-wrap: wrap; gap: 8px;
}
.crafted { color: var(--text-muted); }

/* ==========================================
   ANIMATIONS
   ========================================== */
[data-aos] {
    opacity: 0; transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-aos].visible { opacity: 1; transform: translateY(0); }

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed; top: 0; left: 0; height: 1.5px;
    background: var(--scroll-progress-bg); z-index: 1001; width: 0%;
    transition: width 0.1s ease;
}

/* ==========================================
   SCROLLBAR
   ========================================== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }
::selection { background: var(--selection-bg); color: var(--selection-color); }

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; gap: 48px; }
    .hero-left { text-align: center; align-items: center; }
    .hero-desc { max-width: 500px; }
    .hero-right { max-width: 500px; margin: 0 auto; width: 100%; }
    .about-layout { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid { grid-template-columns: 1fr; gap: 48px; }
    .footer-top { grid-template-columns: 1fr; gap: 48px; }
    .projects-bento { grid-template-columns: 1fr 1fr; }
    .project-card.large { grid-column: span 1; }
}
@media (max-width: 768px) {
    .nav-center { display: none; }
    .nav-social { display: none; }
    .hamburger { display: flex; }
    .stats-bar-container { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .skills-bento { grid-template-columns: 1fr; }
    .experience-bento { grid-template-columns: 1fr; }
    .exp-card.featured { grid-column: span 1; }
    .projects-bento { grid-template-columns: 1fr; }
    .footer-nav { gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .hero-right { grid-template-columns: 1fr; }
    .card-code { grid-row: span 1; }
}
@media (max-width: 480px) {
    .hero { padding: 72px 16px 32px; }
    .container { padding: 0 16px; }
    .section-title { font-size: 1.8rem; }
    .about, .skills, .experience, .projects, .contact { padding: 64px 0; }
}