/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; background: none; border: none; cursor: pointer; color: inherit; }

:root {
  --bg: #0c0b0a;
  --bg-rgb: 12, 11, 10;
  --bg-alt: #121110;
  --surface: #17150f;
  --text: #f3ede1;
  --text-dim: #a99f8d;
  --text-dimmer: #756c5e;
  --accent: #c9a463;
  --accent-soft: rgba(201, 164, 99, 0.14);
  --line: rgba(243, 237, 225, 0.1);
  --line-strong: rgba(243, 237, 225, 0.18);
  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --container: 1180px;
}

:root[data-theme="light"] {
  --bg: #faf6ee;
  --bg-rgb: 250, 246, 238;
  --bg-alt: #f2ecdf;
  --surface: #ffffff;
  --text: #221d16;
  --text-dim: #6b6255;
  --text-dimmer: #948a7a;
  --accent: #a8763c;
  --accent-soft: rgba(168, 118, 60, 0.12);
  --line: rgba(34, 29, 22, 0.09);
  --line-strong: rgba(34, 29, 22, 0.16);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color .5s ease, color .5s ease;
}

body, body * {
  transition-property: background-color, border-color, color, box-shadow;
  transition-duration: .5s;
  transition-timing-function: ease;
}

::selection { background: var(--accent); color: #000; }
::-moz-selection { background: var(--accent); color: #000; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
}

/* film grain overlay */
#grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 40;
  opacity: 0.035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Cursor ---------- */
#cursor-dot, #cursor-ring {
  position: fixed; top: 0; left: 0; pointer-events: none !important; z-index: 60;
  border-radius: 50%; transform: translate(-50%, -50%);
  transition: opacity .3s;
}
#cursor-dot { width: 6px; height: 6px; background: var(--accent); opacity: 0; }
#cursor-ring { width: 32px; height: 32px; border: 1px solid var(--line-strong); opacity: 0; transition: opacity .3s, width .25s, height .25s, background .25s; }
.has-cursor #cursor-dot, .has-cursor #cursor-ring { opacity: 1; }
#cursor-ring.hover { width: 56px; height: 56px; background: var(--accent-soft); border-color: var(--accent); }

/* ---------- Progress bar ---------- */
#progress-bar {
  position: fixed; top: 0; left: 0; height: 2px; width: 0%;
  background: linear-gradient(90deg, var(--accent), #efd9a8);
  z-index: 55; transition: width .1s linear;
}

/* ---------- Header ---------- */
#site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  padding-top: 2px;
  background: linear-gradient(to bottom, rgba(var(--bg-rgb), 0.85), rgba(var(--bg-rgb), 0));
  backdrop-filter: blur(10px);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 1.5rem; padding-bottom: 1.5rem;
}
.logo {
  font-family: var(--serif); font-size: 1.25rem; letter-spacing: 0.08em; color: var(--text);
}
.nav-links { display: flex; gap: 2.5rem; }
.nav-links a {
  font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-dim);
  position: relative; padding-bottom: 4px;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 1px; background: var(--accent);
  transition: width .3s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.lang-switch { display: flex; align-items: center; gap: 0.4rem; font-size: 0.78rem; letter-spacing: 0.05em; }
.lang-btn { color: var(--text-dimmer); padding: 4px; transition: color .25s; }
.lang-btn.active { color: var(--accent); }
.lang-sep { color: var(--line-strong); }

/* ---------- Theme toggle ---------- */
.theme-toggle {
  padding: 0; border-radius: 999px; flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
  cursor: grab;
}
.theme-toggle:active { cursor: grabbing; }
.theme-track {
  position: relative; display: block; width: 46px; height: 25px; border-radius: 999px;
  border: 1px solid var(--line-strong); overflow: hidden;
  background: linear-gradient(135deg, #cfe6f7 0%, #f6efe0 100%);
  transition: background .6s ease, border-color .6s ease;
}
:root[data-theme="dark"] .theme-track,
:root:not([data-theme]) .theme-track {
  background: linear-gradient(135deg, #171c2c 0%, #0a0912 100%);
}

.theme-stars { position: absolute; inset: 0; opacity: 0; transition: opacity .5s ease .05s; }
:root[data-theme="dark"] .theme-stars { opacity: 1; }
.theme-stars i {
  position: absolute; width: 2px; height: 2px; background: #fff; border-radius: 50%; opacity: .85;
}
.theme-stars i:nth-child(1) { top: 5px; left: 8px; }
.theme-stars i:nth-child(2) { top: 14px; left: 14px; width: 1.5px; height: 1.5px; }
.theme-stars i:nth-child(3) { top: 8px; left: 20px; width: 1.5px; height: 1.5px; }
.theme-stars i:nth-child(4) { top: 17px; left: 6px; width: 1px; height: 1px; }

.theme-thumb {
  position: absolute; top: 2.5px; left: 2.5px; width: 19px; height: 19px; border-radius: 50%;
  background: #fff8e4;
  box-shadow: 0 1px 3px rgba(0,0,0,0.25), 0 0 10px 1px rgba(246, 201, 76, 0.45);
  display: flex; align-items: center; justify-content: center;
  transform: translateX(0) rotate(0deg);
  transition: transform .6s cubic-bezier(.65,-0.25,.28,1.3), background .6s ease, box-shadow .6s ease;
}
:root[data-theme="dark"] .theme-thumb,
:root:not([data-theme]) .theme-thumb {
  transform: translateX(21px) rotate(-70deg);
  background: #e3e6ee;
  box-shadow: 0 1px 3px rgba(0,0,0,0.4), 0 0 8px 0 rgba(255,255,255,0.18);
}

.theme-icon { overflow: visible; }
.theme-core { fill: #f6c94c; transition: fill .6s ease; }
:root[data-theme="dark"] .theme-core,
:root:not([data-theme]) .theme-core { fill: #cfd3da; }

.theme-cutout {
  fill: #f8f2e2;
  transform-origin: 12px 12px;
  transform: translate(7px, -7px) scale(0);
  transition: transform .6s cubic-bezier(.65,-0.25,.28,1.3), fill .6s ease;
}
:root[data-theme="dark"] .theme-cutout,
:root:not([data-theme]) .theme-cutout {
  fill: #171c2c;
  transform: translate(3.4px, -3px) scale(1);
}

.theme-rays {
  transform-origin: 12px 12px;
  transition: opacity .4s ease, transform .5s cubic-bezier(.4,0,.2,1);
}
.theme-rays line {
  stroke: #f6c94c; stroke-width: 1.6px; stroke-linecap: round;
  transition: stroke .6s ease;
}
:root[data-theme="dark"] .theme-rays,
:root:not([data-theme]) .theme-rays {
  opacity: 0; transform: scale(0.4) rotate(-90deg);
}

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 24px; position: relative; z-index: 2; }
.nav-toggle span { display: block; height: 1px; background: var(--text); width: 100%; transition: transform .3s, opacity .3s; }
.nav-toggle.open span:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle.open span:last-child { transform: translateY(-3px) rotate(-45deg); }

/* ---------- Typography helpers ---------- */
.kicker {
  font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 1rem; font-weight: 500;
}
.section-title { font-family: var(--serif); font-weight: 400; font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 3rem; }
h2 { font-family: var(--serif); font-weight: 400; }

/* ---------- Language switch transition ---------- */
/* (raised specificity via "body" so this reliably wins over .reveal's transition on shared elements) */
body [data-i18n] {
  transition: opacity .32s cubic-bezier(.4,0,.2,1), filter .32s cubic-bezier(.4,0,.2,1), transform .32s cubic-bezier(.4,0,.2,1);
}
body [data-i18n].i18n-out {
  opacity: 0; filter: blur(4px); transform: translateY(5px);
}

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); filter: blur(4px); transition: opacity .9s cubic-bezier(.16,1,.3,1), transform .9s cubic-bezier(.16,1,.3,1), filter .9s cubic-bezier(.16,1,.3,1); }
.reveal.in-view { opacity: 1; transform: translateY(0); filter: blur(0); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100dvh; display: flex; align-items: center;
  overflow: hidden;
}
.hero-glow {
  position: absolute; top: -20%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 900px; border-radius: 50%;
  background: radial-gradient(circle, rgba(201,164,99,0.16) 0%, rgba(201,164,99,0) 70%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; padding-top: 6rem; }
.hero-title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(3rem, 10vw, 7.5rem); line-height: 0.98; letter-spacing: -0.01em;
  margin: 0.5rem 0 1.75rem;
}
.hero-title .line { display: block; overflow: hidden; }
.hero-title .line span, .hero-title .line { }
.hero-title .accent { color: var(--accent); font-style: italic; }

.hero-title .line[data-split] {
  opacity: 0; transform: translateY(100%);
  transition: opacity .9s cubic-bezier(.16,1,.3,1), transform 1s cubic-bezier(.16,1,.3,1);
}
.hero-title .line[data-split].in-view { opacity: 1; transform: translateY(0); }
.hero-title .line:nth-child(2)[data-split] { transition-delay: .12s; }

.hero-tagline { font-size: clamp(1.1rem, 2vw, 1.5rem); color: var(--text); max-width: 34ch; font-weight: 300; }
.hero-tagline span::after { content: " "; }
.hero-role { color: var(--text-dim); margin-top: 1rem; font-size: 0.95rem; letter-spacing: 0.02em; }
.hero-actions { margin-top: 2.5rem; }

.btn {
  display: inline-block; padding: 0.9rem 2rem; border: 1px solid var(--line-strong); border-radius: 999px;
  font-size: 0.85rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text);
  transition: border-color .3s, background .3s, color .3s;
  position: relative;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-large { padding: 1.1rem 2.75rem; font-size: 0.95rem; margin-top: 2rem; }

.scroll-cue {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-dimmer);
}
.scroll-cue i {
  width: 1px; height: 40px; background: linear-gradient(to bottom, var(--accent), transparent);
  position: relative; overflow: hidden;
}
.scroll-cue i::after {
  content: ""; position: absolute; top: -100%; left: 0; width: 100%; height: 100%;
  background: linear-gradient(to bottom, transparent, var(--text));
  animation: scrollcue 2.2s ease-in-out infinite;
}
@keyframes scrollcue { 0% { top: -100%; } 60%, 100% { top: 100%; } }

/* ---------- Section base ---------- */
.section { padding: clamp(5rem, 12vw, 9rem) 0; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(2.5rem, 6vw, 6rem); align-items: center; }
.portrait-frame {
  position: relative; border-radius: 18px; overflow: hidden; aspect-ratio: 4/5;
  border: 1px solid var(--line-strong);
}
.portrait-frame img {
  width: 100%; height: 100%; object-fit: cover; object-position: top center;
  filter: grayscale(0.55) contrast(1.05); transition: filter .6s ease, transform .6s ease;
}
.portrait-frame:hover img { filter: grayscale(0) contrast(1.05); transform: scale(1.03); }
.portrait-frame::before {
  content: ""; position: absolute; inset: 0; border: 1px solid var(--accent); border-radius: 10px;
  margin: 14px; pointer-events: none; opacity: 0.5;
}
.about-content h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); margin-bottom: 1.5rem; line-height: 1.25; }
.about-content p { color: var(--text-dim); margin-bottom: 1.25rem; font-size: 1.02rem; max-width: 52ch; }
.quote {
  font-family: var(--serif); font-style: italic; font-size: 1.25rem; color: var(--text);
  border-left: 2px solid var(--accent); padding-left: 1.5rem; margin-top: 2rem; max-width: 46ch;
}

/* ---------- Stats ---------- */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-alt); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 3rem 2rem; }
.stat { text-align: center; }
.stat-value { display: block; font-family: var(--serif); font-size: clamp(2.2rem, 5vw, 3.2rem); color: var(--accent); }
.stat-label { display: block; margin-top: 0.6rem; font-size: 0.8rem; color: var(--text-dim); letter-spacing: 0.03em; max-width: 22ch; margin-inline: auto; }

/* ---------- Experience / Timeline ---------- */
.timeline { position: relative; margin-top: 2rem; padding-left: 2.5rem; }
.timeline::before {
  content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--line) 90%);
}
.timeline-item { position: relative; padding-bottom: 3.5rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-marker {
  position: absolute; left: -2.5rem; top: 6px; width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--accent);
}
.timeline-item:first-child .timeline-marker { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.timeline-period { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.timeline-content h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.25rem, 2.2vw, 1.6rem); margin-top: 0.4rem; }
.timeline-company { color: var(--text-dim); font-size: 0.9rem; margin-top: 0.3rem; }
.timeline-desc { color: var(--text-dim); margin-top: 0.9rem; max-width: 62ch; font-size: 0.98rem; }

.earlier-toggle {
  margin-top: 2.5rem; margin-left: 2.5rem; font-size: 0.85rem; letter-spacing: 0.04em; color: var(--text-dim);
  border-bottom: 1px solid var(--line-strong); padding-bottom: 4px; transition: color .3s, border-color .3s;
}
.earlier-toggle:hover { color: var(--accent); border-color: var(--accent); }

.earlier-list { margin-top: 2rem; margin-left: 2.5rem; border-top: 1px solid var(--line); }
.earlier-list li {
  display: flex; gap: 1.5rem; align-items: baseline; padding: 1rem 0; border-bottom: 1px solid var(--line);
  font-size: 0.92rem; flex-wrap: wrap;
}
.earlier-year { color: var(--accent); font-size: 0.78rem; width: 4.5rem; flex-shrink: 0; }
.earlier-title { color: var(--text); min-width: 12rem; }
.earlier-company { color: var(--text-dimmer); }

/* ---------- Speaking ---------- */
.speaking-list { border-top: 1px solid var(--line); }
.speaking-list li {
  display: flex; gap: 2rem; align-items: baseline; padding: 1.4rem 0; border-bottom: 1px solid var(--line);
  font-size: 1.02rem; color: var(--text-dim);
}
.speaking-year { font-family: var(--serif); color: var(--accent); font-size: 1rem; width: 3.5rem; flex-shrink: 0; }
.speaking-list li:hover { color: var(--text); }

/* ---------- Education ---------- */
.edu-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.edu-card { border: 1px solid var(--line); padding: 2.25rem; border-radius: 6px; position: relative; }
.edu-grade {
  display: inline-block; font-size: 0.75rem; letter-spacing: 0.06em; color: var(--accent);
  border: 1px solid var(--line-strong); padding: 0.3rem 0.7rem; border-radius: 999px; margin-bottom: 1.2rem;
}
.edu-card h3 { font-family: var(--serif); font-weight: 400; font-size: 1.25rem; margin-bottom: 0.6rem; }
.edu-degree { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 0.5rem; }
.edu-note { color: var(--text-dimmer); font-size: 0.88rem; font-style: italic; }

/* ---------- Contact ---------- */
.contact { text-align: center; }
.contact-inner h2 { font-size: clamp(2rem, 5vw, 3.2rem); max-width: 18ch; margin: 0 auto; }
.contact-sub { color: var(--text-dim); max-width: 42ch; margin: 1.25rem auto 0; }
.contact-links { margin-top: 4rem; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.contact-links a { background: var(--bg); padding: 1.75rem; text-align: left; transition: background .3s; }
.contact-links a:hover { background: var(--surface); }
.contact-links-full { grid-column: 1 / -1; }
.contact-label { display: block; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-dimmer); margin-bottom: 0.5rem; }
.contact-value { display: block; font-size: 1rem; color: var(--text); }
/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); }
.site-footer .footer-back {
  display: flex; align-items: center; justify-content: center;
  width: 100%; padding: 2.5rem 0;
  font-size: 0.82rem; color: var(--text-dim);
  /* higher specificity than "body [data-i18n]" so the hover fade isn't
     clobbered by the language-switch transition on the same element */
  transition: background .3s ease, color .3s ease,
    opacity .32s cubic-bezier(.4,0,.2,1), filter .32s cubic-bezier(.4,0,.2,1), transform .32s cubic-bezier(.4,0,.2,1);
}
.site-footer .footer-back:hover { background: var(--surface); color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-links, .lang-switch { display: none; }
  .nav-toggle { display: flex; }
  .about-grid { grid-template-columns: 1fr; }
  .portrait-frame { max-width: 320px; margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .edu-grid { grid-template-columns: 1fr; }
  .contact-links { grid-template-columns: 1fr; }
  .timeline, .earlier-toggle, .earlier-list { padding-left: 1.5rem; margin-left: 1.5rem; }
}

@media (max-width: 520px) {
  .stats-grid { grid-template-columns: 1fr; }
}

/* ---------- Theme view-transition: top-down cascade ---------- */
@supports (view-transition-name: root) {
  ::view-transition-old(root) { animation: none; }
  ::view-transition-new(root) {
    animation: theme-reveal .2s cubic-bezier(.4, 0, .2, 1);
  }
  @keyframes theme-reveal {
    from { clip-path: inset(0 0 100% 0); }
    to { clip-path: inset(0 0 0% 0); }
  }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}