*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* ===== DEFAULT THEME TOKENS ===== */
:root,
[data-theme="dark-indigo"] {
    --bg: #06090f;
    --bg2: #0d1117;
    --nav-bg: rgba(6,9,15,0.85);
    --card: rgba(255,255,255,0.04);
    --card-border: rgba(255,255,255,0.08);
    --accent: #6366f1;
    --accent2: #38bdf8;
    --accent-glow: rgba(99,102,241,0.35);
    --text: #f1f5f9;
    --text-dim: #94a3b8;
    --text-muted: #64748b;
    --font: 'Sora', sans-serif;
    --mono: 'DM Mono', monospace;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark-ocean"] {
    --bg: #030c14;
    --bg2: #081420;
    --nav-bg: rgba(3,12,20,0.85);
    --card: rgba(255,255,255,0.04);
    --card-border: rgba(6,182,212,0.12);
    --accent: #06b6d4;
    --accent2: #0ea5e9;
    --accent-glow: rgba(6,182,212,0.35);
    --text: #e0f2fe;
    --text-dim: #7dd3fc;
    --text-muted: #38bdf8;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark-forest"] {
    --bg: #030f07;
    --bg2: #061409;
    --nav-bg: rgba(3,15,7,0.85);
    --card: rgba(255,255,255,0.04);
    --card-border: rgba(16,185,129,0.12);
    --accent: #10b981;
    --accent2: #34d399;
    --accent-glow: rgba(16,185,129,0.35);
    --text: #d1fae5;
    --text-dim: #6ee7b7;
    --text-muted: #34d399;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark-rose"] {
    --bg: #0f0306;
    --bg2: #180408;
    --nav-bg: rgba(15,3,6,0.85);
    --card: rgba(255,255,255,0.04);
    --card-border: rgba(244,63,94,0.12);
    --accent: #f43f5e;
    --accent2: #fb7185;
    --accent-glow: rgba(244,63,94,0.35);
    --text: #ffe4e6;
    --text-dim: #fda4af;
    --text-muted: #fb7185;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="light"] {
    --bg: #f8fafc;
    --bg2: #f1f5f9;
    --nav-bg: rgba(248,250,252,0.9);
    --card: rgba(0,0,0,0.03);
    --card-border: rgba(0,0,0,0.08);
    --accent: #6366f1;
    --accent2: #38bdf8;
    --accent-glow: rgba(99,102,241,0.2);
    --text: #0f172a;
    --text-dim: #334155;
    --text-muted: #64748b;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}
/* Light theme: fix stroke text */
[data-theme="light"] .stroke-text {
    -webkit-text-stroke: 1px rgba(0,0,0,0.15);
}
/* Light theme: nav border */
[data-theme="light"] #nav {
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

html { scroll-behavior: smooth; background: var(--bg); }

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

/* ===== LOADER ===== */
#loader {
    position: fixed; inset: 0;
    background: var(--bg);
    z-index: 9999;
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
#loader.gone { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-inner { text-align: center; width: 260px; }

.loader-bar-wrap {
    height: 2px; background: rgba(255,255,255,0.08);
    border-radius: 2px; overflow: hidden; margin-bottom: 16px;
}
.loader-bar {
    height: 100%; width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    border-radius: 2px;
    transition: width 0.05s linear;
}
.loader-label {
    font-size: 0.65rem; letter-spacing: 0.35em;
    color: var(--text-muted); font-family: var(--mono);
}

/* ===== CANVAS ===== */
#webgl {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0; pointer-events: none;
}

/* ===== NAV ===== */
#nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 20px 5%;
    display: flex; align-items: center; justify-content: space-between;
    background: var(--nav-bg, rgba(6,9,15,0.85));
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    transition: background 0.4s ease;
}
.nav-logo {
    font-size: 1.4rem; font-weight: 800; letter-spacing: -0.5px;
}
.nav-logo .dot { color: var(--accent); }

.nav-links { display: flex; gap: 36px; }
.nav-links a {
    font-size: 0.8rem; font-weight: 600;
    color: var(--text-dim); letter-spacing: 0.05em;
    transition: color 0.25s;
}
.nav-links a:hover { color: var(--text); }

/* Nav action cluster */
.nav-actions {
    display: flex; align-items: center; gap: 12px;
}

.btn-outline {
    padding: 9px 22px;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    font-size: 0.8rem; font-weight: 700;
    transition: all 0.25s;
    background: transparent; color: var(--text);
}
.btn-outline:hover {
    background: var(--text); color: var(--bg);
    border-color: var(--text);
}

/* ── Theme Picker ── */
.theme-picker { position: relative; }
.theme-toggle {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; color: var(--text);
    font-size: 1.1rem;
    transition: all 0.25s;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }

.voice-picker { position: relative; }
.voice-toggle {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; color: var(--text);
    transition: all 0.25s;
}
.voice-toggle:hover { border-color: var(--accent); color: var(--accent); }
#voice-gender-icon { font-size: 1rem; }

.theme-dropdown {
    position: absolute; right: 0; top: calc(100% + 10px);
    background: var(--bg2, #0d1117);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 8px;
    display: flex; flex-direction: column; gap: 4px;
    min-width: 130px;
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity 0.2s var(--ease-out), transform 0.2s var(--ease-out), visibility 0.2s;
    z-index: 200;
    box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}
.theme-dropdown.open {
    opacity: 1; visibility: visible; transform: translateY(0);
}
.theme-opt {
    display: flex; align-items: center; gap: 10px;
    background: none; border: none;
    color: var(--text-dim); font-size: 0.8rem; font-weight: 600;
    padding: 8px 12px; border-radius: 8px;
    cursor: pointer; text-align: left;
    transition: background 0.2s, color 0.2s;
    font-family: var(--font);
}
.theme-opt:hover { background: var(--card); color: var(--text); }
.theme-opt.active { color: var(--accent); }
.dot-preview {
    width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}

/* ── Listen button ── */
.btn-listen {
    display: flex; align-items: center; gap: 7px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 9px 16px;
    font-size: 0.75rem; font-weight: 700;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.25s var(--ease-out);
    font-family: var(--font); letter-spacing: 0.05em;
}
.btn-listen:hover, .btn-listen.active {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 16px var(--accent-glow);
}

/* ── Listen Panel ── */
.listen-panel {
    position: fixed; bottom: 32px; left: 50%;
    transform: translateX(-50%);
    background: var(--bg2, #0d1117);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 16px 24px;
    display: flex; align-items: center; gap: 20px;
    z-index: 500;
    box-shadow: 0 8px 40px rgba(0,0,0,0.5);
    transition: opacity 0.3s, transform 0.3s var(--ease-out);
    min-width: 300px;
}
.listen-panel.hidden { opacity: 0; pointer-events: none; transform: translateX(-50%) translateY(20px); }

.listen-info { display: flex; align-items: center; gap: 14px; flex: 1; }

/* Sound wave bars */
.listen-wave { display: flex; align-items: center; gap: 3px; height: 24px; }
.listen-wave span {
    display: block; width: 3px; border-radius: 3px;
    background: var(--accent);
    animation: wave-bar 1s ease-in-out infinite;
    transform-origin: bottom;
}
.listen-wave span:nth-child(1) { height: 8px;  animation-delay: 0s; }
.listen-wave span:nth-child(2) { height: 16px; animation-delay: 0.1s; }
.listen-wave span:nth-child(3) { height: 24px; animation-delay: 0.2s; }
.listen-wave span:nth-child(4) { height: 14px; animation-delay: 0.3s; }
.listen-wave span:nth-child(5) { height: 8px;  animation-delay: 0.4s; }
@keyframes wave-bar {
    0%, 100% { transform: scaleY(0.4); opacity: 0.5; }
    50%       { transform: scaleY(1);   opacity: 1;   }
}
.listen-panel.hidden .listen-wave span { animation: none; }

#listen-label { font-size: 0.8rem; color: var(--text-dim); font-family: var(--mono); }

.listen-controls { display: flex; gap: 8px; }
.listen-controls button {
    background: var(--card); border: 1px solid var(--card-border);
    border-radius: 8px; width: 36px; height: 36px;
    font-size: 1rem; cursor: pointer; color: var(--text);
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s;
}
.listen-controls button:hover { border-color: var(--accent); color: var(--accent); }

/* ===== COMMON ===== */
.container { max-width: 1140px; margin: 0 auto; padding: 0 5%; }
.section-label {
    font-family: var(--mono);
    font-size: 0.7rem; letter-spacing: 0.3em;
    color: var(--accent); margin-bottom: 20px;
}
.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800; letter-spacing: -0.03em;
    margin-bottom: 60px;
}
.accent { color: var(--accent); }
.stroke-text {
    -webkit-text-stroke: 1px rgba(255,255,255,0.3);
    color: transparent;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== BUTTONS ===== */
.btn-primary {
    display: inline-block;
    padding: 14px 32px;
    background: var(--accent);
    color: #fff; font-weight: 700;
    border-radius: 10px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 30px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px var(--accent-glow);
}

/* ===== HERO ===== */
#hero {
    position: relative; z-index: 1;
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 120px 5% 80px;
}
.hero-inner { max-width: 780px; }

.hero-pre {
    font-family: var(--mono);
    font-size: 0.7rem; letter-spacing: 0.35em;
    color: var(--accent); margin-bottom: 28px;
}

#hero h1 {
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: 800; letter-spacing: -0.05em;
    line-height: 0.9; margin-bottom: 32px;
}

.hero-desc {
    font-size: 1.15rem; color: var(--text-dim);
    line-height: 1.7; max-width: 600px; margin-bottom: 28px;
}
.hero-desc strong { color: var(--text); }

.hero-chips {
    display: flex; flex-wrap: wrap; gap: 10px;
    margin-bottom: 44px;
}
.hero-chips span {
    font-family: var(--mono);
    font-size: 0.72rem; padding: 6px 14px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 100px; color: var(--text-dim);
    transition: all 0.25s;
}
.hero-chips span:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
    transform: translateY(-2px);
}

.scroll-cue {
    position: absolute; bottom: 48px; left: 5%;
    display: flex; flex-direction: column;
    align-items: center; gap: 12px;
}
.scroll-line {
    width: 1px; height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}
.scroll-cue span {
    font-family: var(--mono);
    font-size: 0.6rem; letter-spacing: 0.3em;
    color: var(--text-muted);
}

/* ===== ABOUT ===== */
#about {
    position: relative; z-index: 1;
    padding: 120px 0;
}
.about-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 80px; align-items: start;
}
.about-text h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800; letter-spacing: -0.03em;
    line-height: 1.15; margin-bottom: 28px;
}
.about-text p {
    color: var(--text-dim); line-height: 1.8;
    font-size: 1rem; margin-bottom: 16px;
}
.about-stats {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.stat-box {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 16px; padding: 32px 24px;
    display: flex; flex-direction: column; gap: 8px;
    transition: border-color 0.3s, transform 0.3s;
}
.stat-box:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}
.stat-num {
    font-size: 2.8rem; font-weight: 800;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-lbl { font-size: 0.85rem; color: var(--text-dim); }

/* ===== EXPERIENCE ===== */
#experience {
    position: relative; z-index: 1;
    padding: 120px 0;
    background: linear-gradient(to bottom, transparent, rgba(99,102,241,0.03), transparent);
}
.timeline { position: relative; }
.timeline::before {
    content: '';
    position: absolute; left: 0; top: 8px; bottom: 0;
    width: 1px; background: var(--card-border);
}
.tl-item {
    position: relative; padding-left: 40px; margin-bottom: 52px;
}
.tl-dot {
    position: absolute; left: -5px; top: 8px;
    width: 11px; height: 11px;
    background: var(--accent); border-radius: 50%;
    box-shadow: 0 0 12px var(--accent-glow);
}
.tl-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 16px; padding: 32px 36px;
    transition: border-color 0.35s var(--ease-out),
                transform 0.35s var(--ease-out),
                box-shadow 0.35s var(--ease-out);
}
.tl-card:hover {
    border-color: rgba(99,102,241,0.5);
    transform: translateX(6px);
    box-shadow: 0 8px 40px rgba(99,102,241,0.12),
                inset 0 0 0 1px rgba(99,102,241,0.08);
}
.tl-header {
    background: rgba(13, 17, 23, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex; justify-content: space-between; align-items: center;
    gap: 16px; margin-bottom: 20px;
    flex-wrap: wrap;
}
.tl-company {
    display: block;
    font-size: 1.1rem; font-weight: 800;
    letter-spacing: -0.02em; color: var(--text);
    margin-bottom: 4px;
}
.tl-role {
    display: block;
    font-size: 0.85rem; color: var(--accent);
    font-weight: 600;
}
.tl-date {
    font-family: var(--mono);
    font-size: 0.7rem; color: var(--text-muted);
    white-space: nowrap; padding-top: 4px;
}
.tl-tagline {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0 0 16px;
    padding-left: 12px;
    border-left: 2px solid var(--border);
    font-style: italic;
}
.tl-tagline em {
    font-style: normal;
    color: var(--accent);
    font-weight: 600;
}
.tl-bullets {
    list-style: none; margin-bottom: 20px;
}
.tl-bullets li {
    font-size: 0.92rem; color: var(--text-dim);
    line-height: 1.7; padding: 6px 0;
    padding-left: 18px; position: relative;
}
.tl-bullets li::before {
    content: '▸';
    position: absolute; left: 0;
    color: var(--accent); font-size: 0.8rem; top: 7px;
}
.tl-bullets li strong { color: var(--text); font-weight: 600; }
.tl-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tl-tags span {
    font-family: var(--mono);
    font-size: 0.68rem; padding: 4px 12px;
    background: rgba(99,102,241,0.1);
    border: 1px solid rgba(99,102,241,0.25);
    border-radius: 100px; color: var(--accent);
}

/* ===== SKILLS ===== */
#skills {
    position: relative; z-index: 1;
    padding: 120px 0;
}
.skills-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.skill-group {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 16px; padding: 28px 24px;
    transition: border-color 0.35s var(--ease-out),
                transform 0.35s var(--ease-out),
                box-shadow 0.35s var(--ease-out);
}
.skill-group:hover {
    border-color: rgba(99,102,241,0.5);
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(99,102,241,0.12);
}
.skill-group h3 {
    font-size: 0.95rem; font-weight: 700;
    margin-bottom: 16px; display: flex;
    align-items: center; gap: 10px;
}
.skill-icon { font-size: 1.2rem; }
.skill-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-pills span {
    font-family: var(--mono);
    font-size: 0.7rem; padding: 4px 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--card-border);
    border-radius: 6px; color: var(--text-dim);
}
[data-theme="light"] .skill-pills span {
    background: rgba(0,0,0,0.04);
}
.skill-desc {
    font-size: 0.88rem;
    color: var(--text-dim);
    line-height: 1.7;
    margin-top: 8px;
}
.skill-desc strong { color: var(--accent); }

/* ===== CONTACT ===== */
#contact {
    position: relative; z-index: 1;
    padding: 120px 0;
}
.contact-inner { text-align: center; }
.contact-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800; letter-spacing: -0.04em;
    line-height: 1; margin-bottom: 60px;
}
.contact-links {
    display: flex; flex-direction: column;
    align-items: center; gap: 20px; margin-bottom: 48px;
}
.contact-link {
    display: flex; align-items: center; gap: 14px;
    font-size: 1rem; color: var(--text-dim);
    transition: color 0.25s;
    padding: 14px 28px;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    width: 100%; max-width: 420px;
    justify-content: center;
}
.contact-link:hover { color: var(--text); border-color: var(--accent); }
.contact-icon { font-size: 1.2rem; }

/* ===== FOOTER ===== */
footer {
    position: relative; z-index: 1;
    padding: 40px 5%;
    border-top: 1px solid var(--card-border);
    text-align: center;
    font-size: 0.8rem; color: var(--text-muted);
    font-family: var(--mono);
}

/* ===== REVEAL ANIMATIONS (Progressive Enhancement) ===== */
.reveal-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.65s var(--ease-out, cubic-bezier(0.22,1,0.36,1)),
                transform 0.65s var(--ease-out, cubic-bezier(0.22,1,0.36,1));
}
.reveal-item.visible {
    opacity: 1;
    transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
    .reveal-item { opacity: 1; transform: none; transition: none; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
    .about-grid { grid-template-columns: 1fr; gap: 48px; }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .nav-links { display: none; }
}
@media (max-width: 600px) {
    .skills-grid { grid-template-columns: 1fr; }
    #hero h1 { font-size: 3.8rem; }
    .tl-card { padding: 24px 20px; }
    .contact-link { flex-direction: column; }
}