/* =====================================================================
   Fatih Erdoğan — Portfolio
   Visual identity: "ink & amber" — warm near-black, cream type,
   amber/copper accent; Fraunces (display) · Manrope (text) · JetBrains Mono.
   ===================================================================== */

/* ---------- Fonts (self-hosted, subset: Latin + Turkish) ---------- */
@font-face { font-family: 'Fraunces'; font-style: normal; font-weight: 300 800; font-display: swap; src: url('assets/fonts/fraunces-latin.woff2') format('woff2'); unicode-range: U+0020-007E, U+00A0-00FF, U+0131, U+2013-2014, U+2018-2019, U+201C-201D, U+2022, U+2026, U+2122; }
@font-face { font-family: 'Fraunces'; font-style: normal; font-weight: 300 800; font-display: swap; src: url('assets/fonts/fraunces-tr.woff2') format('woff2'); unicode-range: U+011E-011F, U+0130, U+015E-015F, U+20BA; }
@font-face { font-family: 'Fraunces'; font-style: italic; font-weight: 300 800; font-display: swap; src: url('assets/fonts/fraunces-italic-latin.woff2') format('woff2'); unicode-range: U+0020-007E, U+00A0-00FF, U+0131, U+2013-2014, U+2018-2019, U+201C-201D, U+2022, U+2026, U+2122; }
@font-face { font-family: 'Fraunces'; font-style: italic; font-weight: 300 800; font-display: swap; src: url('assets/fonts/fraunces-italic-tr.woff2') format('woff2'); unicode-range: U+011E-011F, U+0130, U+015E-015F, U+20BA; }
@font-face { font-family: 'Manrope'; font-style: normal; font-weight: 200 800; font-display: swap; src: url('assets/fonts/manrope-latin.woff2') format('woff2'); unicode-range: U+0020-007E, U+00A0-00FF, U+0131, U+2013-2014, U+2018-2019, U+201C-201D, U+2022, U+2026, U+2122; }
@font-face { font-family: 'Manrope'; font-style: normal; font-weight: 200 800; font-display: swap; src: url('assets/fonts/manrope-tr.woff2') format('woff2'); unicode-range: U+011E-011F, U+0130, U+015E-015F, U+20BA; }
@font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 100 800; font-display: swap; src: url('assets/fonts/jetbrains-mono-latin.woff2') format('woff2'); unicode-range: U+0020-007E, U+00A0-00FF, U+0131, U+2013-2014, U+2018-2019, U+201C-201D, U+2022, U+2026, U+2122; }
@font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 100 800; font-display: swap; src: url('assets/fonts/jetbrains-mono-tr.woff2') format('woff2'); unicode-range: U+011E-011F, U+0130, U+015E-015F; }

/* ---------- Design tokens ----------
   Brand palette (from the logo): navy #17243B / #203A55 · teal #178F89 / #35BBAA · antique gold #C49A5A · slate #68768A */
:root {
    --navy: #17243B;
    --navy-2: #203A55;
    --teal: #3cc4b2;
    --teal-deep: #178F89;
    --gold: #C49A5A;
    --slate: #68768A;

    --bg: #0c1524;
    --bg-2: #111c2f;
    --bg-3: #17243B;
    --surface: rgba(226, 234, 246, 0.035);
    --surface-2: rgba(226, 234, 246, 0.065);
    --line: rgba(214, 226, 240, 0.11);
    --line-2: rgba(214, 226, 240, 0.22);
    --text: #f4efe4;
    --text-2: #b9c1cd;
    --text-3: #8b96a8;
    --accent: #d3ac6e;
    --accent-2: #e8c995;
    --accent-3: #35BBAA;
    --accent-ink: #13203a;
    --accent-soft: rgba(211, 172, 110, 0.13);
    --accent-glow: rgba(211, 172, 110, 0.30);
    --teal-soft: rgba(60, 196, 178, 0.13);
    --teal-glow: rgba(53, 187, 170, 0.32);
    --grad: linear-gradient(110deg, #ecd3a4 0%, #d3ac6e 42%, #35BBAA 100%);
    --grad-trace: linear-gradient(90deg, #C49A5A, #35BBAA 52%, #C49A5A);
    --shadow: 0 30px 80px -30px rgba(2, 8, 20, 0.8);
    --grain-opacity: 0.06;
    --logo-ink-a: #f6f0e3;
    --logo-ink-b: #e9dec6;
    --logo-ink-c: #35BBAA;
    --logo-sub: #a3aebf;
    --aura-1: rgba(53, 187, 170, 0.30);
    --aura-2: rgba(196, 154, 90, 0.26);
    --aura-3: rgba(48, 86, 128, 0.55);


    --f-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
    --f-body: 'Manrope', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --f-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;

    --r-sm: 10px;
    --r: 18px;
    --r-lg: 28px;
    --r-xl: 40px;
    --container: 1240px;
    --gutter: clamp(1rem, 4vw, 2.5rem);
    --header-h: 72px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
    color-scheme: dark;
}

[data-theme="light"] {
    --bg: #f7f3ea;
    --bg-2: #efe8da;
    --bg-3: #e6ddca;
    --surface: rgba(23, 36, 59, 0.035);
    --surface-2: rgba(23, 36, 59, 0.06);
    --line: rgba(23, 36, 59, 0.12);
    --line-2: rgba(23, 36, 59, 0.24);
    --text: #17243B;
    --text-2: #3e4c61;
    --text-3: #5d6a7d;
    --accent: #7d5a1f;
    --accent-2: #a87f3c;
    --accent-3: #0f6b66;
    --accent-ink: #fffaf0;
    --accent-soft: rgba(196, 154, 90, 0.16);
    --accent-glow: rgba(196, 154, 90, 0.30);
    --teal: #0f7a73;
    --teal-soft: rgba(23, 143, 137, 0.11);
    --teal-glow: rgba(23, 143, 137, 0.25);
    --grad: linear-gradient(110deg, #a87f3c 0%, #7d5a1f 45%, #0f6b66 100%);
    --shadow: 0 30px 70px -35px rgba(23, 36, 59, 0.35);
    --grain-opacity: 0.045;
    --logo-ink-a: #17243B;
    --logo-ink-b: #203A55;
    --logo-ink-c: #178F89;
    --logo-sub: #5d6a7d;
    --aura-1: rgba(53, 187, 170, 0.22);
    --aura-2: rgba(196, 154, 90, 0.26);
    --aura-3: rgba(32, 58, 85, 0.10);
    color-scheme: light;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }
body {
    font-family: var(--f-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }
strong { color: var(--text); font-weight: 700; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.ic { width: 1em; height: 1em; fill: currentColor; flex-shrink: 0; }
.mono { font-family: var(--f-mono); letter-spacing: 0.02em; }
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.gradient-text {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--accent);
}

.skip-link {
    position: fixed; top: 12px; left: 12px; z-index: 1000;
    padding: 0.6rem 1rem; border-radius: 999px;
    background: var(--accent); color: var(--accent-ink); font-weight: 700;
    transform: translateY(-160%); transition: transform 0.3s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

/* Hide content until the hero intro is ready (removed by script.js, safety timeout in <head>). */
.is-loading [data-hero], .is-loading .hero__logo { visibility: hidden; }
.lang-pending body > *:not(.preloader) { visibility: hidden; }

/* ---------- Grain, progress, cursor ---------- */
.grain {
    position: fixed; inset: -50%; z-index: 90; pointer-events: none;
    opacity: var(--grain-opacity);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    animation: grain 1.2s steps(6) infinite;
}
@keyframes grain {
    0%, 100% { transform: translate(0, 0); }
    20% { transform: translate(-3%, 2%); }
    40% { transform: translate(2%, -3%); }
    60% { transform: translate(-2%, -1%); }
    80% { transform: translate(3%, 3%); }
}

.scroll-progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 120; pointer-events: none; }
.scroll-progress span { display: block; height: 100%; background: var(--grad); transform-origin: 0 50%; transform: scaleX(0); }

.cursor { display: none; }
.has-cursor .cursor { display: block; }
.has-cursor, .has-cursor a, .has-cursor button { cursor: none; }
.cursor__dot, .cursor__ring {
    position: fixed; top: 0; left: 0; z-index: 200; pointer-events: none;
    border-radius: 50%; will-change: transform;
}
.cursor__dot { width: 6px; height: 6px; margin: -3px 0 0 -3px; background: var(--accent); box-shadow: 0 0 10px var(--accent-glow); }
.cursor__ring {
    width: 38px; height: 38px; margin: -19px 0 0 -19px;
    border: 1px solid var(--teal);
    opacity: 0.6;
    transition: width 0.35s var(--ease), height 0.35s var(--ease), margin 0.35s var(--ease), opacity 0.35s, background-color 0.35s, border-color 0.35s;
}
.cursor.is-hover .cursor__ring { width: 70px; height: 70px; margin: -35px 0 0 -35px; background: var(--teal-soft); border-color: transparent; opacity: 1; }
.cursor.is-text .cursor__ring { width: 6px; height: 28px; margin: -14px 0 0 -3px; border-radius: 3px; opacity: 0.5; }
.cursor.is-down .cursor__ring { width: 28px; height: 28px; margin: -14px 0 0 -14px; }
.cursor.is-hidden { opacity: 0; }

/* ---------- Preloader ---------- */
.preloader { display: none; }
.show-preloader .preloader {
    display: grid; place-items: center;
    position: fixed; inset: 0; z-index: 500;
    background: var(--bg);
    clip-path: inset(0 0 0 0);
}
.preloader__inner { display: grid; justify-items: center; gap: 0.9rem; text-align: center; }
.preloader__name { font-family: var(--f-mono); font-size: 0.8rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--text-2); }
.preloader__count { font-family: var(--f-display); font-size: clamp(5rem, 18vw, 10rem); line-height: 1; font-weight: 300; font-variant-numeric: tabular-nums; }
.preloader__count sup { font-size: 0.3em; color: var(--accent); vertical-align: top; margin-left: 0.1em; }
.preloader__bar { width: min(260px, 60vw); height: 1px; background: var(--line); overflow: hidden; }
.preloader__bar span { display: block; height: 100%; background: var(--grad); transform-origin: 0 50%; transform: scaleX(0); }
.preloader__meta { font-family: var(--f-mono); font-size: 0.7rem; color: var(--text-3); letter-spacing: 0.2em; text-transform: uppercase; }

/* ---------- Header / nav ---------- */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    height: var(--header-h);
    transition: transform 0.5s var(--ease), background-color 0.4s, border-color 0.4s, backdrop-filter 0.4s;
    border-bottom: 1px solid transparent;
}
.header.is-scrolled {
    background: color-mix(in srgb, var(--bg) 72%, transparent);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    backdrop-filter: blur(16px) saturate(140%);
    border-bottom-color: var(--line);
}
.header.is-hidden { transform: translateY(-100%); }
.menu-open .header { transform: none; background: transparent; border-color: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; }

.nav { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: 0.7rem; font-weight: 700; z-index: 2; }

.nav__links { display: flex; gap: 0.25rem; padding: 0.3rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); }
.nav__links a {
    position: relative; display: block;
    padding: 0.45rem 0.95rem; border-radius: 999px;
    font-size: 0.86rem; font-weight: 600; color: var(--text-2);
    transition: color 0.3s, background-color 0.3s;
}
.nav__links a:hover { color: var(--text); }
.nav__links a.active { color: var(--accent-ink); background: var(--accent); }

.nav__actions { display: flex; align-items: center; gap: 0.6rem; z-index: 2; }
.tutor-pill {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.5rem 0.95rem; border-radius: 999px;
    font-size: 0.84rem; font-weight: 700;
    border: 1px solid color-mix(in srgb, var(--accent) 55%, transparent);
    color: var(--accent);
    background: var(--accent-soft);
    transition: background-color 0.3s, color 0.3s;
}
.tutor-pill:hover { background: var(--accent); color: var(--accent-ink); }
.tutor-pill__dot { position: relative; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.tutor-pill__dot::after { content: ''; position: absolute; inset: -4px; border-radius: 50%; border: 1px solid currentColor; animation: ping 2s var(--ease) infinite; }
@keyframes ping { 0% { transform: scale(0.5); opacity: 1; } 100% { transform: scale(1.8); opacity: 0; } }

.lang-switch {
    position: relative; display: inline-flex; align-items: center;
    padding: 3px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface);
}
.lang-btn {
    position: relative; z-index: 1;
    width: 36px; height: 30px; border-radius: 999px;
    font-family: var(--f-mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em;
    color: var(--text-3); transition: color 0.3s;
}
.lang-btn.active { color: var(--accent-ink); }
.lang-switch__thumb {
    position: absolute; top: 3px; left: 3px; width: 36px; height: 30px; border-radius: 999px;
    background: var(--text); transition: transform 0.45s var(--ease);
}
[data-lang="en"] .lang-switch__thumb { transform: translateX(36px); }
.lang-btn.active { color: var(--bg); }

.icon-btn {
    display: grid; place-items: center;
    width: 38px; height: 38px; border-radius: 50%;
    border: 1px solid var(--line); background: var(--surface); color: var(--text);
    transition: border-color 0.3s, background-color 0.3s;
}
.icon-btn:hover { border-color: var(--line-2); background: var(--surface-2); }
.theme-btn { position: relative; overflow: hidden; }
.theme-btn .ic { position: absolute; font-size: 1rem; transition: transform 0.6s var(--ease), opacity 0.4s; }
.theme-btn .ic-sun { transform: translateY(0) rotate(0); }
.theme-btn .ic-moon { transform: translateY(140%) rotate(-90deg); opacity: 0; }
[data-theme="light"] .theme-btn .ic-sun { transform: translateY(-140%) rotate(90deg); opacity: 0; }
[data-theme="light"] .theme-btn .ic-moon { transform: translateY(0) rotate(0); opacity: 1; }

.menu-btn { display: none; flex-direction: column; align-items: center; justify-content: center; gap: 6px; }
.menu-btn span { display: block; width: 16px; height: 1.5px; background: currentColor; transition: transform 0.45s var(--ease); }
.menu-btn[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* Mobile menu overlay */
.menu { position: fixed; inset: 0; z-index: 95; visibility: hidden; pointer-events: none; }
.menu.is-open { visibility: visible; pointer-events: auto; }
.menu__bg { position: absolute; inset: 0; background: var(--bg-2); clip-path: circle(0% at calc(100% - 40px) 36px); transition: clip-path 0.8s var(--ease-io); }
.menu.is-open .menu__bg { clip-path: circle(150% at calc(100% - 40px) 36px); }
.menu__inner { position: relative; height: 100%; display: flex; flex-direction: column; justify-content: center; gap: 2rem; padding-top: var(--header-h); padding-bottom: 2rem; }
.menu__links li { overflow: hidden; }
.menu__links a {
    display: flex; align-items: baseline; gap: 1rem;
    font-family: var(--f-display); font-size: clamp(2.2rem, 9vw, 3.6rem); line-height: 1.15; font-weight: 400; letter-spacing: -0.02em;
    transform: translateY(105%); transition: transform 0.7s var(--ease), color 0.3s;
}
.menu__links a:hover { color: var(--accent); }
.menu.is-open .menu__links a { transform: translateY(0); }
.menu__links li:nth-child(2) a { transition-delay: 0.04s; }
.menu__links li:nth-child(3) a { transition-delay: 0.08s; }
.menu__links li:nth-child(4) a { transition-delay: 0.12s; }
.menu__links li:nth-child(5) a { transition-delay: 0.16s; }
.menu__links li:nth-child(6) a { transition-delay: 0.2s; }
.menu.is-open .menu__links li:nth-child(1) a { transition-delay: 0.2s; }
.menu.is-open .menu__links li:nth-child(2) a { transition-delay: 0.25s; }
.menu.is-open .menu__links li:nth-child(3) a { transition-delay: 0.3s; }
.menu.is-open .menu__links li:nth-child(4) a { transition-delay: 0.35s; }
.menu.is-open .menu__links li:nth-child(5) a { transition-delay: 0.4s; }
.menu.is-open .menu__links li:nth-child(6) a { transition-delay: 0.45s; }
.menu__num { font-family: var(--f-mono); font-size: 0.75rem; color: var(--accent); letter-spacing: 0.1em; }
.menu__tutor, .menu__socials { opacity: 0; transform: translateY(16px); transition: opacity 0.5s, transform 0.6s var(--ease); }
.menu.is-open .menu__tutor, .menu.is-open .menu__socials { opacity: 1; transform: none; transition-delay: 0.5s; }
.menu__tutor {
    display: inline-flex; align-items: center; gap: 0.7rem; align-self: flex-start;
    padding: 0.85rem 1.2rem; border-radius: 999px; font-weight: 700;
    color: var(--accent-ink); background: var(--accent);
}
.menu__socials { display: flex; gap: 0.75rem; }
.menu__socials a { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line-2); font-size: 1.1rem; }

/* ---------- Buttons ---------- */
.btn {
    position: relative; isolation: isolate; overflow: hidden;
    display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
    min-height: 50px; padding: 0.8rem 1.5rem; border-radius: 999px;
    font-weight: 700; font-size: 0.95rem; letter-spacing: -0.005em; white-space: nowrap;
    transition: color 0.4s var(--ease), border-color 0.4s, box-shadow 0.4s;
}
.btn::before {
    content: ''; position: absolute; inset: 0; z-index: -1;
    border-radius: inherit;
    transform: translateY(101%); transition: transform 0.55s var(--ease);
}
.btn:hover::before { transform: translateY(0); }
.btn--primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 12px 40px -12px var(--accent-glow); }
.btn--primary::before { background: var(--text); }
.btn--primary:hover { color: var(--bg); }
.btn__icon { display: grid; place-items: center; width: 26px; height: 26px; margin-right: -0.6rem; border-radius: 50%; background: var(--accent-ink); color: var(--accent); transition: transform 0.5s var(--ease), background-color 0.4s; }
.btn--primary:hover .btn__icon { transform: rotate(-45deg); background: var(--bg); }
.btn--ghost { border: 1px solid var(--line-2); color: var(--text); background: var(--surface); }
.btn--ghost::before { background: var(--text); }
.btn--ghost:hover { color: var(--bg); border-color: var(--text); }
.btn--sm { min-height: 42px; padding: 0.55rem 1.1rem; font-size: 0.85rem; }
.btn--lg { min-height: 58px; padding: 1rem 1.9rem; font-size: 1rem; }

.magnetic { will-change: transform; }

.socials { display: flex; gap: 0.6rem; }
.socials a {
    display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
    border: 1px solid var(--line); color: var(--text-2); font-size: 1.05rem;
    transition: color 0.3s, border-color 0.3s, background-color 0.3s;
}
.socials a:hover { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
.socials--center { justify-content: center; }

/* ---------- Hero ---------- */
.hero {
    position: relative; isolation: isolate; overflow: hidden;
    min-height: 100vh; min-height: 100svh;
    display: flex; align-items: center;
    padding: calc(var(--header-h) + 1.5rem) 0 2rem;
}
.hero__canvas { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; }
.hero__aura { position: absolute; inset: 0; z-index: -2; overflow: hidden; }
.hero__aura span { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.5; will-change: transform; }
.hero__aura span:nth-child(1) { width: 46vw; height: 46vw; right: -10vw; top: -14vw; background: radial-gradient(circle, var(--aura-1), transparent 65%); animation: drift1 18s ease-in-out infinite alternate; }
.hero__aura span:nth-child(2) { width: 38vw; height: 38vw; left: -12vw; bottom: -16vw; background: radial-gradient(circle, var(--aura-2), transparent 65%); animation: drift2 22s ease-in-out infinite alternate; }
.hero__aura span:nth-child(3) { width: 26vw; height: 26vw; left: 40vw; top: 30vh; background: radial-gradient(circle, var(--aura-3), transparent 65%); animation: drift3 16s ease-in-out infinite alternate; }
[data-theme="light"] .hero__aura span { opacity: 0.7; }
@keyframes drift1 { to { transform: translate(-8vw, 10vh) scale(1.15); } }
@keyframes drift2 { to { transform: translate(10vw, -8vh) scale(0.9); } }
@keyframes drift3 { to { transform: translate(-12vw, -6vh) scale(1.25); } }
.hero__grid-lines {
    position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 88px 88px;
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
    opacity: 0.45;
}

.hero__inner { position: relative; }
.hero__top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: clamp(1.5rem, 4vh, 2.5rem); }
.badge {
    display: inline-flex; align-items: center; gap: 0.55rem;
    padding: 0.4rem 0.9rem 0.4rem 0.7rem; border-radius: 999px;
    border: 1px solid var(--line); background: var(--surface);
    font-size: 0.8rem; font-weight: 600; color: var(--text-2);
}
.badge__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px var(--teal-soft); animation: pulse 2.2s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 7px rgba(53, 187, 170, 0.04); } }
.hero__loc { font-size: 0.75rem; color: var(--text-3); letter-spacing: 0.12em; text-transform: uppercase; }

.hero__greeting { font-size: clamp(0.85rem, 1.2vw, 1rem); color: var(--accent); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 0.4rem; }

.hero__row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 400px); align-items: end; gap: clamp(2rem, 5vw, 5rem); }
.hero__left { max-width: 640px; }
.hero__role { display: flex; align-items: center; gap: 0.6rem; min-height: 1.9em; font-size: clamp(1rem, 1.6vw, 1.2rem); color: var(--text); margin-bottom: 0.9rem; }
.hero__role-pre { color: var(--accent); }
.caret { display: inline-block; width: 0.55em; height: 1.15em; background: var(--accent); margin-left: -0.35rem; animation: blink 1s steps(2, start) infinite; }
@keyframes blink { to { visibility: hidden; } }
.hero__bio { color: var(--text-2); font-size: clamp(0.98rem, 1.2vw, 1.08rem); max-width: 58ch; margin-bottom: 1.8rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 1.6rem; }


.stats {
    display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-bottom: 0.4rem; border-radius: var(--r-lg); overflow: hidden;
    border: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 55%, transparent);
    -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.stat { display: flex; flex-direction: column-reverse; justify-content: flex-end; gap: 0.35rem; padding: 1.2rem 1.3rem; }
.stat:nth-child(even) { border-left: 1px solid var(--line); }
.stat:nth-child(n+3) { border-top: 1px solid var(--line); }
.stat__num { font-family: var(--f-display); font-size: clamp(2rem, 3.6vw, 3rem); font-weight: 400; line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.stat__num--sm { font-size: clamp(1.4rem, 2.4vw, 2rem); padding-top: 0.35rem; }
.stat__num--sm .mono { font-size: 0.55em; color: var(--accent); }
.stat__lbl { font-family: var(--f-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-3); }

/* ---------- Marquee ---------- */
.marquee { position: relative; overflow: hidden; padding: clamp(1.6rem, 4vw, 2.6rem) 0; border-block: 1px solid var(--line); background: var(--bg-2); }
.marquee__row { display: flex; width: max-content; will-change: transform; }
.marquee__row + .marquee__row { margin-top: 0.4rem; }
.marquee__track { display: flex; align-items: center; flex-shrink: 0; }
.marquee__track span {
    font-family: var(--f-display); font-size: clamp(2.2rem, 6vw, 4.6rem); line-height: 1.1; font-weight: 400; letter-spacing: -0.03em;
    padding-inline: clamp(1rem, 2.4vw, 2rem); white-space: nowrap;
}
.marquee__row--outline span { font-style: italic; font-weight: 300; color: transparent; -webkit-text-stroke: 1px var(--text-3); }
.marquee__track i { display: block; width: 14px; height: 14px; background: var(--accent); transform: rotate(45deg); border-radius: 3px; flex-shrink: 0; }
.marquee__row--outline i { background: transparent; border: 1px solid var(--accent); }

/* ---------- Sections ---------- */
.section { position: relative; padding: clamp(5rem, 12vw, 9rem) 0; }
main > section, main > .marquee { overflow-x: clip; }
.section-head { margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section-head--row { display: flex; flex-direction: column; gap: 0.2rem; }
.section-tag { display: inline-flex; align-items: center; gap: 0.6rem; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.9rem; }
.section-tag::before { content: ''; width: 28px; height: 1px; background: currentColor; }
.section-title {
    font-family: var(--f-display); font-weight: 380; font-variation-settings: 'opsz' 144;
    font-size: clamp(2.6rem, 6.4vw, 5.2rem); line-height: 1; letter-spacing: -0.035em;
}
.mask { display: block; overflow: hidden; padding-bottom: 0.1em; margin-bottom: -0.1em; }
.mask > span { display: block; will-change: transform; }

/* About */
.about__grid { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: clamp(2.5rem, 7vw, 6.5rem); align-items: center; }
.about__media { position: relative; max-width: 460px; width: 100%; justify-self: center; }
.about__frame {
    position: relative; overflow: hidden;
    aspect-ratio: 4 / 5; border-radius: 240px 240px var(--r-lg) var(--r-lg);
    background: var(--bg-3); box-shadow: var(--shadow);
}
.about__frame img { width: 100%; height: 118%; object-fit: cover; object-position: 50% 30%; transform-origin: 50% 50%; }
.about__frame::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(12, 21, 36, 0.5)); pointer-events: none; }
.about__chip {
    position: absolute; left: -1.2rem; bottom: 2.2rem;
    display: inline-flex; align-items: center; gap: 0.7rem;
    padding: 0.7rem 1.1rem 0.7rem 0.75rem; border-radius: 999px;
    background: color-mix(in srgb, var(--bg) 80%, transparent);
    -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    border: 1px solid var(--line-2);
    font-size: 0.85rem; font-weight: 700; box-shadow: var(--shadow);
}
.about__chip-num { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--grad); color: var(--accent-ink); font-family: var(--f-display); font-style: italic; font-size: 1rem; }
.about__orbit { position: absolute; inset: -22px; border: 1px dashed var(--line-2); border-radius: 260px 260px calc(var(--r-lg) + 22px) calc(var(--r-lg) + 22px); z-index: -1; pointer-events: none; }
.about__text { display: grid; gap: 1.1rem; color: var(--text-2); font-size: 1.02rem; }
.about__text .lead { font-size: clamp(1.12rem, 1.6vw, 1.3rem); line-height: 1.6; color: var(--text); }
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.7rem; margin-top: 2rem; }
.fact { display: flex; align-items: center; gap: 0.75rem; padding: 0.85rem 1rem; border-radius: var(--r); border: 1px solid var(--line); background: var(--surface); font-weight: 600; font-size: 0.92rem; line-height: 1.35; }
.fact__ic { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); flex-shrink: 0; }

/* Journey / timeline */
.journey { background: var(--bg-2); border-block: 1px solid var(--line); }
.journey__grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.5fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.journey__aside { position: sticky; top: calc(var(--header-h) + 2.5rem); }
.journey__cv { margin-top: -0.5rem; }
.timeline { position: relative; display: grid; gap: 1.4rem; padding-left: 4.4rem; }
.timeline__rail { position: absolute; left: 1.45rem; top: 0.5rem; bottom: 0.5rem; width: 2px; background: var(--line); border-radius: 2px; }
.timeline__progress { position: absolute; inset: 0; background: linear-gradient(180deg, var(--accent-2), var(--accent), var(--accent-3)); transform-origin: 50% 0; transform: scaleY(0); border-radius: 2px; }
.timeline__progress::after { content: ''; position: absolute; left: 50%; bottom: -6px; width: 12px; height: 12px; margin-left: -6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 6px var(--accent-soft), 0 0 24px var(--accent-glow); transform: scaleX(1); }
.timeline-item { position: relative; }
.timeline-icon {
    position: absolute; left: -4.4rem; top: 1.4rem;
    display: grid; place-items: center;
    width: 3rem; height: 3rem; padding: 0.45rem; border-radius: 50%;
    background: #fff; border: 1px solid var(--line-2);
    box-shadow: 0 0 0 6px var(--bg-2);
    transition: box-shadow 0.5s;
}
.timeline-icon img { width: 100%; height: 100%; object-fit: contain; }
.timeline-icon--glyph { background: var(--grad); color: var(--accent-ink); font-size: 1.1rem; border: 0; }
.timeline-item.is-active .timeline-icon { box-shadow: 0 0 0 6px var(--bg-2), 0 0 0 7px var(--accent), 0 0 30px var(--accent-glow); }
.timeline-card {
    padding: clamp(1.3rem, 2.5vw, 1.9rem); border-radius: var(--r-lg);
    border: 1px solid var(--line); background: var(--bg);
    transition: border-color 0.4s, translate 0.5s var(--ease);
}
.timeline-card:hover { border-color: var(--line-2); translate: 6px 0; }
.timeline-meta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1rem; margin-bottom: 0.7rem; }
.tl-period { font-size: 0.78rem; color: var(--text-3); letter-spacing: 0.04em; }
.tl-badge { padding: 0.2rem 0.7rem; border-radius: 999px; font-size: 0.74rem; font-weight: 700; color: var(--accent); background: var(--accent-soft); }
.tl-badge--live { color: var(--teal); background: var(--teal-soft); }
.timeline-card h3 { font-family: var(--f-display); font-weight: 450; font-size: clamp(1.35rem, 2.2vw, 1.65rem); line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 0.35rem; }
.tl-org { font-size: 0.92rem; font-weight: 600; color: var(--text-2); }
.tl-desc { margin-top: 0.8rem; font-size: 0.94rem; color: var(--text-2); }
.gpa-pill { display: inline-block; margin-top: 0.9rem; padding: 0.35rem 0.85rem; border-radius: 999px; border: 1px solid var(--line-2); font-size: 0.8rem; color: var(--accent); }

/* Skills / bento */
.bento { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.bento__card {
    position: relative; overflow: hidden;
    padding: clamp(1.4rem, 2.5vw, 2rem); border-radius: var(--r-lg);
    border: 1px solid var(--line); background: var(--surface);
    transition: border-color 0.4s;
}
.bento__card:hover { border-color: var(--line-2); }
.skill-category--wide { grid-column: span 2; }
.languages { grid-column: span 3; display: grid; grid-template-columns: auto repeat(3, minmax(0, 1fr)); align-items: center; gap: 1.2rem 2.4rem; }
.spot::before {
    content: ''; position: absolute; inset: 0; pointer-events: none; z-index: 0;
    background: radial-gradient(420px circle at var(--mx, 50%) var(--my, -30%), var(--accent-soft), transparent 45%);
    opacity: 0; transition: opacity 0.4s;
}
.spot:hover::before { opacity: 1; }
.spot > * { position: relative; z-index: 1; }
.skill-category__head { display: flex; align-items: center; gap: 0.85rem; margin-bottom: 1.3rem; }
.skill-category__icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; background: var(--accent-soft); color: var(--accent); font-size: 1.1rem; }
.skill-category__head h3, .languages__title { font-family: var(--f-display); font-weight: 450; font-size: 1.35rem; letter-spacing: -0.02em; line-height: 1.2; }
.tags { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tag {
    display: inline-block; padding: 0.38rem 0.8rem; border-radius: 999px;
    font-size: 0.8rem; font-weight: 600; line-height: 1.3; color: var(--text-2);
    border: 1px solid var(--line); background: var(--surface);
    transition: color 0.3s, border-color 0.3s, background-color 0.3s;
}
.tag:hover { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.lang-item__head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.55rem; }
.lang-name { font-weight: 700; }
.lang-level { font-size: 0.74rem; color: var(--text-3); letter-spacing: 0.06em; }
.lang-bar { height: 4px; border-radius: 4px; background: var(--line); overflow: hidden; }
.lang-bar__fill { display: block; height: 100%; width: var(--w); border-radius: 4px; background: var(--grad); transform-origin: 0 50%; }

/* Projects */
.projects { padding-bottom: clamp(3rem, 8vw, 5rem); }
.projects__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; }
.projects__meta { display: none; flex-direction: column; align-items: flex-end; gap: 0.4rem; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.projects__counter { font-size: 1rem; color: var(--text); }
.projects__counter span { color: var(--accent); }
.projects__hint { font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-3); }
.projects__viewport { width: 100%; }
.projects__track { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2rem; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.projects__foot { display: none; }
.project-card {
    position: relative; overflow: hidden;
    display: flex; flex-direction: column;
    padding: clamp(1.5rem, 2.6vw, 2.1rem); border-radius: var(--r-lg);
    border: 1px solid var(--line); background: linear-gradient(160deg, var(--surface-2), var(--surface) 60%);
    transform-style: preserve-3d;
    transition: border-color 0.4s;
}
.project-card:hover { border-color: var(--line-2); }
.project-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.6rem; }
.project-card__num { font-family: var(--f-display); font-style: italic; font-weight: 300; font-size: 3.4rem; line-height: 0.9; color: transparent; -webkit-text-stroke: 1px var(--text-3); letter-spacing: -0.03em; transition: color 0.4s, -webkit-text-stroke-color 0.4s; }
.project-card:hover .project-card__num { color: var(--accent); -webkit-text-stroke-color: var(--accent); }
.project-card__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px; background: var(--accent-soft); color: var(--accent); font-size: 1.3rem; transform: translateZ(30px); }
.project-card h3 { font-family: var(--f-display); font-weight: 450; font-size: clamp(1.6rem, 2.6vw, 2.1rem); letter-spacing: -0.025em; line-height: 1.1; margin-bottom: 0.4rem; transform: translateZ(20px); }
.project-role { font-size: 0.86rem; font-weight: 700; color: var(--accent); margin-bottom: 0.9rem; }
.project-desc { font-size: 0.93rem; color: var(--text-2); margin-bottom: 1.3rem; }
.project-card .tags { margin-bottom: 1.4rem; }
.project-links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: auto; }
.project-link {
    display: inline-flex; align-items: center; gap: 0.45rem;
    padding: 0.5rem 0.95rem; border-radius: 999px;
    font-size: 0.84rem; font-weight: 700;
    border: 1px solid var(--line-2); color: var(--text);
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}
.project-link:hover { background: var(--text); color: var(--bg); border-color: var(--text); }
.project-link--accent { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.project-card--more {
    align-items: flex-start; justify-content: flex-end; gap: 0.4rem; min-height: 220px;
    background: var(--grad); color: var(--accent-ink); border: 0;
}
.project-card--more__icon { position: absolute; top: 1.8rem; left: 1.8rem; font-size: 2.2rem; }
.project-card--more__label { font-family: var(--f-display); font-size: clamp(2rem, 3.4vw, 2.8rem); font-weight: 450; letter-spacing: -0.03em; line-height: 1; }
.project-card--more__sub { font-size: 0.8rem; opacity: 0.8; }
.project-card--more__arrow { position: absolute; top: 1.6rem; right: 1.6rem; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; background: var(--accent-ink); color: var(--accent); font-size: 1.1rem; transition: transform 0.5s var(--ease); }
.project-card--more:hover .project-card--more__arrow { transform: rotate(45deg) scale(1.08); }
.project-card--more:focus-visible { outline-offset: 4px; }

/* Horizontal pinned showcase (enabled by script.js on large screens) */
.projects.is-horizontal .projects__pin { height: 100vh; display: flex; flex-direction: column; justify-content: center; padding-top: var(--header-h); overflow: hidden; }
.projects.is-horizontal .projects__meta { display: flex; }
.projects.is-horizontal .section-head { margin-bottom: 2rem; }
.projects.is-horizontal .projects__track {
    display: flex; gap: 1.4rem; width: max-content; max-width: none;
    padding-inline: max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
}
.projects.is-horizontal .project-card { width: clamp(360px, 31vw, 450px); flex-shrink: 0; }
.projects.is-horizontal .project-card--more { width: clamp(300px, 24vw, 340px); }
.projects.is-horizontal .projects__foot { display: block; margin-top: 2rem; }
.projects__bar { display: block; height: 2px; background: var(--line); border-radius: 2px; overflow: hidden; }
.projects__bar span { display: block; height: 100%; background: var(--grad); transform-origin: 0 50%; transform: scaleX(0); }
.projects.is-horizontal { padding-block: 0; }

/* Tutoring teaser */
.tutor { padding-top: clamp(2rem, 6vw, 4rem); padding-bottom: clamp(3rem, 8vw, 6rem); }
.tutor-card {
    position: relative; overflow: hidden; isolation: isolate;
    display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 2rem;
    padding: clamp(1.8rem, 4vw, 3.2rem); border-radius: var(--r-xl);
    border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
    background:
        radial-gradient(120% 140% at 100% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 55%),
        linear-gradient(135deg, var(--bg-2), var(--bg));
    transition: border-color 0.4s;
}
.tutor-card:hover { border-color: var(--accent); }
.tutor-card__symbols { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.tutor-card__symbols span { position: absolute; font-family: var(--f-display); font-style: italic; color: var(--accent); opacity: 0.16; font-size: clamp(2rem, 5vw, 3.6rem); line-height: 1; }
.tutor-card__symbols span:nth-child(1) { right: 34%; top: 12%; }
.tutor-card__symbols span:nth-child(2) { right: 22%; bottom: 10%; }
.tutor-card__symbols span:nth-child(3) { right: 8%; top: 8%; font-family: var(--f-mono); font-style: normal; font-size: clamp(1.4rem, 3vw, 2.2rem); }
.tutor-card__symbols span:nth-child(4) { right: 44%; bottom: 8%; }
.tutor-card__symbols span:nth-child(5) { right: 4%; bottom: 30%; }
.tutor-card__symbols span:nth-child(6) { right: 56%; top: 6%; font-size: clamp(1.4rem, 3vw, 2.2rem); }
.tutor-card__body { display: grid; gap: 0.6rem; max-width: 720px; }
.tutor-card .section-tag { margin-bottom: 0.2rem; }
.tutor-card__title { font-family: var(--f-display); font-weight: 400; font-size: clamp(1.8rem, 3.8vw, 3rem); line-height: 1.08; letter-spacing: -0.03em; }
.tutor-card__text { color: var(--text-2); font-size: 1rem; }
.tutor-card__cta { display: inline-flex; align-items: center; gap: 0.8rem; font-weight: 700; white-space: nowrap; }
.tutor-card__arrow { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-size: 1.2rem; transition: transform 0.5s var(--ease); }
.tutor-card:hover .tutor-card__arrow { transform: translateX(6px) rotate(-30deg); }

/* Contact */
.contact { padding: 0; }
.contact__panel {
    position: relative; overflow: hidden; isolation: isolate;
    margin-inline: clamp(0.5rem, 1.5vw, 1.25rem);
    border-radius: var(--r-xl) var(--r-xl) 0 0;
    background: var(--bg-2); border: 1px solid var(--line); border-bottom: 0;
    transform-origin: 50% 0;
}
.contact__glow { position: absolute; left: 50%; top: 0; z-index: -1; width: 900px; height: 600px; transform: translate(-50%, -45%); background: radial-gradient(closest-side, var(--accent-glow), transparent); filter: blur(30px); opacity: 0.8; pointer-events: none; }
.contact__inner { display: grid; justify-items: center; text-align: center; padding-top: clamp(5rem, 12vw, 9rem); padding-bottom: clamp(4rem, 9vw, 6rem); }
.contact__heading { font-family: var(--f-display); font-weight: 350; font-variation-settings: 'opsz' 144; font-size: clamp(3rem, 10vw, 8.5rem); line-height: 0.95; letter-spacing: -0.045em; margin-bottom: 1.6rem; }
.contact__heading .gradient-text { font-style: italic; font-weight: 300; padding-right: 0.06em; }
.contact__text { max-width: 560px; color: var(--text-2); font-size: 1.05rem; margin-bottom: 2.2rem; }
.contact__cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.9rem; margin-bottom: 1.8rem; }
.contact__mail { font-family: var(--f-mono); font-size: clamp(0.9rem, 1.6vw, 1.05rem); color: var(--text-2); margin-bottom: 1.6rem; background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: background-size 0.5s var(--ease), color 0.3s; padding-bottom: 2px; }
.contact__mail:hover { color: var(--accent); background-size: 100% 1px; }

.footer { border-top: 1px solid var(--line); }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.8rem 1.5rem; padding-block: 1.6rem; font-size: 0.88rem; color: var(--text-2); }
.footer__link { font-weight: 700; color: var(--accent); }
.footer__link:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer__sub { color: var(--text-3); }

.back-to-top {
    position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 80;
    display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%;
    background: var(--accent); color: var(--accent-ink); box-shadow: 0 10px 30px -8px var(--accent-glow);
    opacity: 0; transform: translateY(16px) scale(0.9); pointer-events: none;
    transition: opacity 0.4s, transform 0.5s var(--ease);
}
.back-to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }

/* Theme switch circular reveal (View Transitions API) */
::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
::view-transition-new(root) { z-index: 2; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
    .nav__links { display: none; }
    .menu-btn { display: flex; }
}
@media (max-width: 900px) {
    .hero__row { grid-template-columns: 1fr; }
    .stats { margin-top: 0.6rem; max-width: 520px; }
    .about__grid { grid-template-columns: 1fr; }
    .about__media { max-width: 400px; }
    .journey__grid { grid-template-columns: 1fr; }
    .journey__aside { position: static; }
    .journey__cv { display: none; }
    .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .skill-category--wide { grid-column: span 2; }
    .languages { grid-column: span 2; grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .languages__title { grid-column: 1 / -1; }
    .tutor-card { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    :root { --header-h: 64px; }
    .nav__actions .tutor-pill { display: none; }
    .hero { padding-top: calc(var(--header-h) + 1rem); align-items: flex-start; }
    .hero__top { margin-bottom: 1.6rem; }
    .hero__loc { display: none; }
    .hero__cta .btn { flex: 1 1 auto; }
    .stat { padding: 1rem; }
    .facts { grid-template-columns: 1fr; }
    .about__chip { left: 0.6rem; bottom: 1rem; }
    .about__orbit { inset: -10px; }
    .about__media { width: calc(100% - 20px); }
    .timeline { padding-left: 3.4rem; }
    .timeline__rail { left: 1.05rem; }
    .timeline-icon { left: -3.4rem; width: 2.3rem; height: 2.3rem; padding: 0.35rem; font-size: 0.9rem; }
    .timeline-card:hover { translate: none; }
    .bento { grid-template-columns: 1fr; }
    .skill-category--wide, .languages { grid-column: auto; }
    .languages { grid-template-columns: 1fr; gap: 1rem; }
    .projects__track { grid-template-columns: 1fr; }
    .tutor-card { border-radius: var(--r-lg); }
    .tutor-card__arrow { width: 52px; height: 52px; }
    .contact__panel { margin-inline: 0; border-radius: var(--r-lg) var(--r-lg) 0 0; border-inline: 0; }
    .contact__cta .btn { width: 100%; }
    .footer__inner { flex-direction: column; text-align: center; }
    .back-to-top { right: 1rem; bottom: 1rem; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
    .grain { animation: none; }
    .hero__ring-text { animation: none; }
}
.reduced-motion .hero__aura span, .reduced-motion .grain { animation: none; }

/* =====================================================================
   Brand layer — logo, circuit-trace motifs, tulip & underline-with-node
   ===================================================================== */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* Header mark (tulip + script name, name inherits currentColor) */
.brand { color: var(--text); gap: 0; }
.brand__logo { display: block; height: 42px; width: auto; transition: transform 0.6s var(--ease); }
.brand:hover .brand__logo { transform: translateY(-1px); }

/* Preloader: the tulip motif draws itself */
.pre-mark { width: min(220px, 52vw); height: auto; overflow: visible; margin-bottom: 0.4rem; }
.preloader__name { font-family: var(--f-mono); }
.preloader__meta { font-variant-numeric: tabular-nums; }

/* Hero logo */
.hero__logo { width: min(780px, 100%); margin: 0 0 clamp(1.2rem, 3vh, 2rem) -0.5%; line-height: 0; }
.logo { display: block; width: 100%; height: auto; overflow: visible; }
.logo .lg-name { filter: drop-shadow(0 6px 24px rgba(0, 0, 0, 0.18)); }
[data-theme="light"] .logo .lg-name { filter: none; }
.hero__greeting { margin-bottom: 0.2rem; }

/* Scroll cue: a vertical circuit trace with a travelling node */
.scroll-cue { position: absolute; left: 50%; bottom: 1.4rem; transform: translateX(-50%); display: grid; justify-items: center; gap: 0.5rem; color: var(--text-3); }
.scroll-cue__label { font-size: 0.66rem; letter-spacing: 0.22em; text-transform: uppercase; }
.scroll-cue__trace { position: relative; width: 1px; height: 46px; background: linear-gradient(var(--accent), var(--teal)); opacity: 0.8; }
.scroll-cue__trace span { position: absolute; left: 50%; top: 0; width: 7px; height: 7px; margin-left: -3.5px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 3px var(--teal-soft), 0 0 12px var(--teal-glow); animation: cue 2.2s var(--ease-io) infinite; }
@keyframes cue { 0% { transform: translateY(0); opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { transform: translateY(40px); opacity: 0; } }
.scroll-cue:hover { color: var(--accent); }

/* Section connector: circuit traces growing from a central node */
.trace-divider { position: absolute; left: 50%; top: 0; z-index: 2; width: min(1160px, 94vw); transform: translate(-50%, -50%); pointer-events: none; }
.trace-divider svg { display: block; width: 100%; height: auto; overflow: visible; }

/* Section tag: line ending in a teal node */
.section-tag::before {
    width: 36px; height: 7px;
    background:
        radial-gradient(circle at calc(100% - 3.5px) 50%, var(--teal) 2.6px, transparent 3.2px),
        linear-gradient(90deg, var(--accent), var(--accent)) 0 50% / calc(100% - 9px) 1px no-repeat;
}

/* Section title: flowing underline with a node (drawn in when revealed) */
.section-title::after, .contact__heading::after {
    content: ''; display: block; width: min(220px, 60%); height: 16px; margin-top: 0.9rem;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 220 16' fill='none'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' x2='220' y1='0' y2='0' gradientUnits='userSpaceOnUse'%3E%3Cstop stop-color='%23C49A5A'/%3E%3Cstop offset='.55' stop-color='%2335BBAA'/%3E%3Cstop offset='1' stop-color='%23C49A5A' stop-opacity='0'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cpath d='M2 8C40 8 52 4 74 5.5C86 6.4 92 9.5 100 9.6C108 9.5 114 6.4 126 5.5C148 4 170 8 218 8' stroke='url(%23g)' stroke-width='1.6' stroke-linecap='round'/%3E%3Ccircle cx='100' cy='9.4' r='3.6' fill='%230c1524' stroke='%2335BBAA' stroke-width='1.4'/%3E%3C/svg%3E") 0 50% / 100% 100% no-repeat;
    clip-path: inset(0 100% 0 0);
    transition: clip-path 1.4s var(--ease) 0.25s;
}
.contact__heading::after { margin-inline: auto; width: min(260px, 60%); }
[data-theme="light"] .section-title::after, [data-theme="light"] .contact__heading::after { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 220 16' fill='none'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' x2='220' y1='0' y2='0' gradientUnits='userSpaceOnUse'%3E%3Cstop stop-color='%23A87F3C'/%3E%3Cstop offset='.55' stop-color='%23178F89'/%3E%3Cstop offset='1' stop-color='%23A87F3C' stop-opacity='0'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cpath d='M2 8C40 8 52 4 74 5.5C86 6.4 92 9.5 100 9.6C108 9.5 114 6.4 126 5.5C148 4 170 8 218 8' stroke='url(%23g)' stroke-width='1.6' stroke-linecap='round'/%3E%3Ccircle cx='100' cy='9.4' r='3.6' fill='%23f7f3ea' stroke='%23178F89' stroke-width='1.4'/%3E%3C/svg%3E"); }
.is-drawn::after, .no-anim .section-title::after, .reduced-motion .section-title::after, .reduced-motion .contact__heading::after { clip-path: inset(0 0 0 0); }

/* Marquee separators become circuit nodes */
.marquee__track i { width: 12px; height: 12px; border-radius: 50%; transform: none; background: var(--teal); box-shadow: 0 0 0 4px var(--teal-soft); }
.marquee__row--outline i { background: transparent; border: 1.5px solid var(--accent); box-shadow: none; }
.marquee__row--outline span { -webkit-text-stroke-color: color-mix(in srgb, var(--accent) 55%, var(--text-3)); }

/* Timeline: gold → teal trace with a teal node */
.timeline__progress { background: linear-gradient(180deg, var(--accent-2), var(--accent) 45%, var(--teal)); }
.timeline__progress::after { background: var(--teal); box-shadow: 0 0 0 6px var(--teal-soft), 0 0 24px var(--teal-glow); }
.timeline-item.is-active .timeline-icon { box-shadow: 0 0 0 6px var(--bg-2), 0 0 0 7px var(--teal), 0 0 30px var(--teal-glow); }

/* Teal as secondary accent on links and small highlights */
.project-link--accent { background: var(--teal); border-color: var(--teal); color: var(--accent-ink); }
[data-theme="light"] .project-link--accent { color: #fffaf0; }
.contact__mail:hover, .footer__link { color: var(--teal); }
.tag:hover { color: var(--teal); border-color: color-mix(in srgb, var(--teal) 45%, transparent); }
.fact__ic { background: var(--teal-soft); color: var(--teal); }
.skill-category:nth-child(even) .skill-category__icon { background: var(--teal-soft); color: var(--teal); }
.tutor-card__symbols span:nth-child(odd) { color: var(--teal); }
.contact__glow { background: radial-gradient(closest-side, var(--teal-glow), transparent); }
.contact__glow::after { content: ''; position: absolute; inset: 20% 30%; background: radial-gradient(closest-side, var(--accent-glow), transparent); }

/* Footer logo */
.footer__brand { display: flex; justify-content: center; padding-bottom: 2.2rem; }
.footer__logo { display: block; width: min(420px, 86vw); opacity: 0.95; transition: opacity 0.3s; }
.footer__logo:hover { opacity: 1; }

@media (max-width: 640px) {
    .brand__logo { height: 34px; }
    .hero__logo { margin-left: -1.5%; width: 103%; }
    .scroll-cue { display: none; }
}

/* ---------- Page transition (shared with project pages) ---------- */
.page-wipe {
    position: fixed; inset: 0; z-index: 700;
    display: grid; place-items: center;
    background: radial-gradient(70% 60% at 50% 45%, #1b2c47 0%, #0c1524 70%);
    transform: translateY(100%); visibility: hidden; pointer-events: none;
}
.page-wipe::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: var(--grad-trace); }
.wipe-in .page-wipe { transform: none; visibility: visible; }
.page-wipe__inner { display: grid; justify-items: center; gap: 0.6rem; }
.page-wipe__inner svg { width: min(170px, 42vw); height: auto; overflow: visible; }
.page-wipe__name { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.3em; text-transform: uppercase; color: #b9c1cd; }

/* "Details" button on project cards */
.project-link--detail { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.project-link--detail .ic { transition: transform 0.4s var(--ease); }
.project-link--detail:hover { background: var(--text); border-color: var(--text); color: var(--bg); }
.project-link--detail:hover .ic { transform: translateX(3px); }