/* ───────────────────────────── tokens ───────────────────────────── */
:root {
  /* dark (default) */
  --bg: #15110d;
  --bg-2: #1c1814;
  --bg-3: #221d18;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --fg: #f5efe7;
  --fg-2: #c9c1b6;
  --fg-3: #8a8278;
  --accent: #ff6a3d;
  --accent-2: #ffa07a;
  --accent-soft: rgba(255, 106, 61, 0.12);
  --grid: rgba(255, 255, 255, 0.04);

  --radius: 14px;
  --radius-lg: 22px;
  --shadow-1: 0 1px 0 rgba(255, 255, 255, 0.05) inset, 0 12px 40px rgba(0, 0, 0, 0.3);
  --shadow-2: 0 24px 80px -12px rgba(255, 106, 61, 0.25), 0 1px 0 rgba(255, 255, 255, 0.06) inset;

  --font-sans: 'Inter', ui-sans-serif, system-ui, sans-serif;
  --font-display: 'Instrument Serif', 'Times New Roman', serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

[data-theme='light'] {
  --bg: #f5f1ea;
  --bg-2: #ece7dd;
  --bg-3: #e3dccf;
  --line: rgba(20, 14, 8, 0.08);
  --line-2: rgba(20, 14, 8, 0.16);
  --fg: #1a1410;
  --fg-2: #3d3429;
  --fg-3: #6b6155;
  --accent: #d4521e;
  --accent-2: #b8410f;
  --accent-soft: rgba(212, 82, 30, 0.12);
  --grid: rgba(20, 14, 8, 0.04);
}

/* ───────────────────────────── reset ───────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-feature-settings: 'cv11', 'ss01';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  cursor: none;
}
@media (max-width: 900px) { body { cursor: auto; } }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; cursor: none; }
@media (max-width: 900px) { button { cursor: pointer; } }
a { color: inherit; text-decoration: none; cursor: none; }
@media (max-width: 900px) { a { cursor: pointer; } }

/* ───────────────────────────── cursor ───────────────────────────── */
.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.2s ease, width 0.25s ease, height 0.25s ease, background 0.2s ease;
}
.cursor-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  mix-blend-mode: normal;
}
.cursor-ring {
  width: 36px; height: 36px; border: 1px solid var(--accent);
  border-radius: 50%; opacity: 0.6;
  transition: transform 0.18s ease-out, width 0.25s ease, height 0.25s ease, opacity 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.cursor-ring.hover {
  width: 60px; height: 60px;
  background: var(--accent-soft); border-color: var(--accent);
}
@media (max-width: 900px) { .cursor-dot, .cursor-ring { display: none; } }

/* ───────────────────────────── layout ───────────────────────────── */
.shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 56px;
}
@media (max-width: 768px) { .shell { padding: 0 24px; } }

section { padding: 120px 0; position: relative; }
@media (max-width: 768px) { section { padding: 80px 0; } }

/* ───────────────────────────── nav ───────────────────────────── */
.nav {
  position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
  z-index: 100; display: flex; align-items: center; gap: 8px;
  padding: 8px 8px 8px 18px;
  background: color-mix(in oklab, var(--bg) 75%, transparent);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow-1);
  opacity: 0; transform: translate(-50%, -8px);
  transition: opacity 0.6s ease 0.4s, transform 0.6s ease 0.4s;
}
.nav.in { opacity: 1; transform: translate(-50%, 0); }
.nav-brand {
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  color: var(--fg-2); letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 8px;
  padding-right: 12px; border-right: 1px solid var(--line);
}
.nav-brand-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.nav-links { display: flex; gap: 2px; }
.nav-link {
  padding: 8px 14px; font-size: 13px; color: var(--fg-3);
  border-radius: 999px; transition: color 0.2s, background 0.2s;
  letter-spacing: -0.005em;
}
.nav-link:hover, .nav-link.active { color: var(--fg); background: var(--line); }
.nav-cta {
  padding: 8px 14px; font-size: 13px; background: var(--accent); color: #fff;
  border: 0; border-radius: 999px; font-weight: 500; letter-spacing: -0.005em;
  white-space: nowrap; display: inline-flex; align-items: center; gap: 6px;
  transition: transform 0.2s ease, background 0.2s;
}
.nav-cta:hover { background: var(--accent-2); transform: translateY(-1px); }
.theme-btn {
  width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--line);
  background: transparent; display: flex; align-items: center; justify-content: center;
  margin-left: 4px;
}
.theme-btn:hover { background: var(--line); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-brand { border-right: 0; padding-right: 4px; }
}

/* ───────────────────────────── hero ───────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding-top: 100px; padding-bottom: 60px; position: relative;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none; overflow: hidden;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px),
                    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 75%);
}
.hero-glow {
  position: absolute; width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  filter: blur(40px); pointer-events: none; z-index: 0;
  top: 30%; right: -10%;
}

.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11.5px; color: var(--fg-3);
  letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 28px;
}
.eyebrow::before {
  content: ''; width: 28px; height: 1px; background: var(--accent);
}
.eyebrow .ping {
  width: 7px; height: 7px; border-radius: 50%; background: #2ee093; position: relative;
}
.eyebrow .ping::after {
  content: ''; position: absolute; inset: -3px; border-radius: 50%;
  border: 1px solid #2ee093; animation: pingRing 2s ease-out infinite;
}
@keyframes pingRing {
  0% { opacity: 0.8; transform: scale(0.8); }
  100% { opacity: 0; transform: scale(2); }
}

.hero-title {
  font-family: var(--font-sans);
  font-size: clamp(42px, 7.2vw, 96px);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.04em;
  margin: 0 0 24px;
  text-wrap: balance;
}
.hero-title .serif {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--accent);
}
.hero-sub {
  font-size: 18px; line-height: 1.55; color: var(--fg-2);
  max-width: 460px; margin: 0 0 36px; text-wrap: pretty;
}
.hero-meta {
  display: flex; gap: 28px; margin-top: 40px;
  padding-top: 24px; border-top: 1px solid var(--line);
}
.hero-meta dt {
  font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-3);
  letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 4px;
}
.hero-meta dd { margin: 0; font-size: 13.5px; color: var(--fg); font-weight: 500; }

.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 999px;
  font-size: 14px; font-weight: 500; letter-spacing: -0.005em;
  border: 1px solid transparent; transition: all 0.2s ease;
}
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 8px 24px -4px rgba(255, 106, 61, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -4px rgba(255, 106, 61, 0.45);
}
.btn-ghost {
  background: transparent; border-color: var(--line-2); color: var(--fg);
}
.btn-ghost:hover { background: var(--line); border-color: var(--fg-3); }

/* hero photo */
.hero-photo-wrap {
  position: relative; aspect-ratio: 4 / 5; max-width: 460px; margin-left: auto;
}
.hero-photo {
  position: absolute; inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--bg-2), var(--bg-3));
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}
.hero-photo img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 20%;
  filter: saturate(0.9) contrast(1.05);
}
.hero-photo::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(15, 11, 8, 0.6) 100%);
  pointer-events: none;
}
.hero-photo-deco {
  position: absolute; top: -16px; right: -16px;
  width: 80px; height: 80px;
  border: 1px solid var(--accent); border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  font-family: var(--font-mono); font-size: 22px; color: var(--accent);
  transform: rotate(8deg);
  animation: float 6s ease-in-out infinite;
}
.hero-photo-tag {
  position: absolute; bottom: -14px; left: -14px;
  padding: 8px 14px; background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 999px; font-family: var(--font-mono); font-size: 11px;
  color: var(--fg-2); display: flex; align-items: center; gap: 8px;
  box-shadow: var(--shadow-1);
}
.hero-photo-tag::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%; background: #2ee093;
}
@keyframes float {
  0%, 100% { transform: rotate(8deg) translateY(0); }
  50%      { transform: rotate(6deg) translateY(-8px); }
}

.scroll-hint {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-3);
  letter-spacing: 0.08em; text-transform: uppercase;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  animation: bob 2.4s ease-in-out infinite;
}
.scroll-hint-line {
  width: 1px; height: 28px; background: var(--line-2); position: relative; overflow: hidden;
}
.scroll-hint-line::after {
  content: ''; position: absolute; top: -100%; left: 0; right: 0; height: 50%;
  background: var(--accent); animation: scrollDot 2s ease-in-out infinite;
}
@keyframes scrollDot {
  0% { top: -50%; } 100% { top: 100%; }
}
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); }
  50%      { transform: translate(-50%, 4px); }
}
@media (max-width: 900px) {
  .hero { flex-direction: column; padding-bottom: 60px; }
  .hero .shell { width: 100%; }
  .scroll-hint {
    position: static; transform: none;
    margin: 40px auto 0; width: fit-content;
    animation: bobStatic 2.4s ease-in-out infinite;
  }
}
@keyframes bobStatic {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(4px); }
}

/* ───────────────────────────── section heads ───────────────────────────── */
.sec-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 56px; gap: 32px; flex-wrap: wrap;
}
.sec-num {
  font-family: var(--font-mono); font-size: 11px; color: var(--fg-3);
  letter-spacing: 0.04em; text-transform: uppercase; display: block; margin-bottom: 12px;
}
.sec-title {
  font-size: clamp(32px, 4.5vw, 56px); font-weight: 600; line-height: 1.05;
  letter-spacing: -0.03em; margin: 0; max-width: 720px; text-wrap: balance;
}
.sec-title .accent { color: var(--accent); font-family: var(--font-display); font-style: italic; font-weight: 400; }
.sec-meta {
  font-family: var(--font-mono); font-size: 11px; color: var(--fg-3);
  letter-spacing: 0.04em; text-transform: uppercase;
}

/* ───────────────────────────── about ───────────────────────────── */
.about-grid {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 80px; align-items: start;
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
}

.about-card {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 28px;
  position: sticky; top: 100px;
}
@media (max-width: 900px) { .about-card { position: static; } }
.about-card-photo {
  aspect-ratio: 1; border-radius: 12px;
  background: linear-gradient(135deg, var(--bg-3), var(--bg));
  margin-bottom: 20px; position: relative; overflow: hidden;
  border: 1px solid var(--line);
}
.about-card-photo img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 25%;
}
.about-name { font-size: 18px; font-weight: 600; margin: 0 0 4px; letter-spacing: -0.01em; }
.about-role { font-size: 13px; color: var(--fg-3); margin: 0 0 20px; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.about-stat {
  padding: 12px; background: var(--bg-3); border-radius: 10px; border: 1px solid var(--line);
}
.about-stat-num {
  font-size: 24px; font-weight: 600; letter-spacing: -0.02em;
  font-family: var(--font-display); font-style: italic; color: var(--accent);
}
.about-stat-lbl {
  font-family: var(--font-mono); font-size: 9.5px; color: var(--fg-3);
  letter-spacing: 0.06em; text-transform: uppercase; margin-top: 2px;
}

.about-prose p {
  font-size: 19px; line-height: 1.55; color: var(--fg-2);
  margin: 0 0 24px; text-wrap: pretty;
}
.about-prose p:first-child {
  font-size: 24px; line-height: 1.4; color: var(--fg);
  font-weight: 400; letter-spacing: -0.015em;
}
.about-prose b { color: var(--fg); font-weight: 500; }
.about-prose .hl {
  background: linear-gradient(transparent 60%, var(--accent-soft) 60%);
  padding: 0 2px;
}

.about-tags {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px;
  padding-top: 28px; border-top: 1px solid var(--line);
}
.about-tag {
  padding: 7px 12px; font-family: var(--font-mono); font-size: 11px;
  color: var(--fg-2); background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 999px;
}

/* ───────────────────────────── skills ───────────────────────────── */
.skills-marquee {
  margin-top: -20px;
  padding: 28px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  overflow: hidden; white-space: nowrap; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.skills-track {
  display: inline-flex; gap: 56px; animation: marquee 40s linear infinite;
  padding-right: 56px;
}
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.skills-item {
  font-family: var(--font-display); font-style: italic; font-size: 32px;
  color: var(--fg-2); display: inline-flex; align-items: center; gap: 56px;
  letter-spacing: -0.01em;
}
.skills-item::after {
  content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}

.skills-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px;
}
@media (max-width: 900px) { .skills-grid { grid-template-columns: repeat(2, 1fr); } }

.skill-card {
  padding: 24px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--bg-2); transition: all 0.25s ease;
  position: relative; overflow: hidden;
}
.skill-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.skill-card:hover { transform: translateY(-3px); border-color: var(--line-2); }
.skill-card:hover::before { opacity: 1; }
.skill-cat {
  font-family: var(--font-mono); font-size: 10px; color: var(--fg-3);
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 14px;
}
.skill-name { font-size: 18px; font-weight: 600; margin: 0 0 6px; letter-spacing: -0.01em; }
.skill-list {
  font-size: 12.5px; color: var(--fg-3); margin: 0; line-height: 1.6;
  font-family: var(--font-mono);
}

/* ───────────────────────────── work ───────────────────────────── */
.work-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
@media (max-width: 900px) { .work-grid { grid-template-columns: 1fr; } }

.proj {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--bg-2);
  overflow: hidden; cursor: none;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
@media (max-width: 900px) { .proj { cursor: pointer; } }
.proj:hover { transform: translateY(-4px); border-color: var(--line-2); }

.proj-cover {
  aspect-ratio: 16 / 10; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--bg-3), var(--bg));
}
.proj-cover-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px),
                    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
}
.proj-cover-art {
  position: absolute; inset: 12%; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.proj:hover .proj-cover-art { transform: scale(1.04); }

.proj-num {
  position: absolute; top: 18px; left: 20px;
  font-family: var(--font-mono); font-size: 11px; color: var(--fg-3);
}
.proj-arrow {
  position: absolute; top: 16px; right: 16px;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.3s ease;
}
.proj:hover .proj-arrow { background: var(--accent); border-color: var(--accent); transform: rotate(-45deg); }
.proj:hover .proj-arrow svg { stroke: #fff; }

.proj-body { padding: 24px 24px 28px; }
.proj-title {
  font-size: 22px; font-weight: 600; margin: 0 0 6px; letter-spacing: -0.015em;
}
.proj-desc { font-size: 14px; color: var(--fg-3); margin: 0 0 16px; line-height: 1.5; }
.proj-tags {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.proj-tag {
  padding: 5px 10px; font-family: var(--font-mono); font-size: 10.5px;
  color: var(--fg-2); border: 1px solid var(--line); border-radius: 6px;
  letter-spacing: 0.01em;
}
.proj-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-3);
  margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line);
}

/* project art variants */
.art-dashboard {
  background: linear-gradient(135deg, #1a1612, #0e0b08);
  border: 1px solid var(--line); padding: 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.art-dashboard .row { display: flex; gap: 8px; }
.art-dashboard .bar { height: 6px; border-radius: 2px; background: var(--line-2); flex: 1; }
.art-dashboard .bar.a { background: var(--accent); flex: 2; }
.art-dashboard .chart { flex: 1; display: flex; align-items: end; gap: 4px; padding-top: 8px; }
.art-dashboard .col { flex: 1; background: var(--line-2); border-radius: 2px 2px 0 0; }
.art-dashboard .col.h { background: var(--accent); }

.art-mobile {
  background: linear-gradient(135deg, #221d18, #14110d);
  display: flex; align-items: center; justify-content: center; padding: 14px;
}
.art-mobile .phone {
  width: 110px; aspect-ratio: 9/19; background: var(--bg);
  border: 1px solid var(--line-2); border-radius: 18px;
  display: flex; flex-direction: column; padding: 14px 10px;
  gap: 8px;
}
.art-mobile .ph-bar { height: 6px; border-radius: 2px; background: var(--line-2); }
.art-mobile .ph-bar.a { background: var(--accent); width: 60%; }
.art-mobile .ph-card { flex: 1; background: var(--bg-3); border-radius: 8px; }

.art-terminal {
  background: #0a0806; padding: 16px; font-family: var(--font-mono); font-size: 10px;
  color: var(--fg-2); line-height: 1.6;
}
.art-terminal .prompt { color: var(--accent); }
.art-terminal .cmt { color: var(--fg-3); }
.art-terminal .str { color: #7ad97a; }

.art-globe {
  background: radial-gradient(ellipse at center, #2a1f15, #0a0806);
  display: flex; align-items: center; justify-content: center; position: relative;
}
.art-globe::before {
  content: ''; width: 60%; aspect-ratio: 1; border-radius: 50%;
  border: 1px solid var(--accent); opacity: 0.3;
  background: radial-gradient(circle at 30% 30%, var(--accent-soft), transparent 60%);
}
.art-globe::after {
  content: ''; position: absolute; width: 75%; aspect-ratio: 1;
  border: 1px dashed var(--line-2); border-radius: 50%;
  animation: spin 30s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ───────────────────────────── experience ───────────────────────────── */
.timeline {
  display: grid; grid-template-columns: 220px 1fr; gap: 60px;
}
@media (max-width: 900px) { .timeline { grid-template-columns: 1fr; gap: 24px; } }

.tl-side {
  position: sticky; top: 100px;
  font-family: var(--font-mono); font-size: 11px; color: var(--fg-3);
  letter-spacing: 0.04em; text-transform: uppercase;
}
@media (max-width: 900px) { .tl-side { position: static; } }
.tl-side-num {
  font-size: 80px; font-family: var(--font-display); font-style: italic;
  font-weight: 400; color: var(--accent); line-height: 1; margin: 8px 0 4px;
  letter-spacing: -0.02em;
}

.tl-list { list-style: none; padding: 0; margin: 0; position: relative; }
.tl-list::before {
  content: ''; position: absolute; top: 12px; bottom: 12px; left: 7px;
  width: 1px; background: var(--line); 
}
.tl-item {
  position: relative; padding: 0 0 40px 36px;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ''; position: absolute; left: 0; top: 8px;
  width: 15px; height: 15px; border-radius: 50%;
  border: 1px solid var(--line-2); background: var(--bg);
  transition: all 0.3s ease;
}
.tl-item.active::before {
  background: var(--accent); border-color: var(--accent);
  box-shadow: 0 0 0 5px var(--accent-soft);
}
.tl-date {
  font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-3);
  letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 6px;
}
.tl-role { font-size: 22px; font-weight: 600; margin: 0 0 4px; letter-spacing: -0.015em; }
.tl-role .at { color: var(--fg-3); font-weight: 400; }
.tl-role .at em {
  font-family: var(--font-display); font-style: italic; color: var(--accent); font-weight: 400;
}
.tl-desc { color: var(--fg-2); margin: 6px 0 12px; line-height: 1.55; max-width: 580px; }
.tl-stack {
  display: flex; gap: 6px; flex-wrap: wrap;
}
.tl-stack span {
  font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-3);
  padding: 4px 8px; border: 1px solid var(--line); border-radius: 5px;
}

/* ───────────────────────────── case study ───────────────────────────── */
.cs-wrap {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--bg-2), var(--bg));
  padding: 40px; position: relative; overflow: hidden;
}
.cs-grid {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px; align-items: center;
}
@media (max-width: 900px) { .cs-grid { grid-template-columns: 1fr; gap: 32px; } }

.cs-tag {
  display: inline-block; font-family: var(--font-mono); font-size: 10.5px;
  color: var(--accent); letter-spacing: 0.04em; text-transform: uppercase;
  padding: 6px 10px; border: 1px solid var(--accent); border-radius: 6px;
  margin-bottom: 20px;
}
.cs-title {
  font-size: clamp(28px, 3.5vw, 40px); font-weight: 600; line-height: 1.1;
  letter-spacing: -0.025em; margin: 0 0 16px;
}
.cs-quote {
  font-size: 17px; line-height: 1.55; color: var(--fg-2); margin: 0 0 28px;
  text-wrap: pretty;
}
.cs-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  padding: 24px; background: var(--bg-3); border: 1px solid var(--line);
  border-radius: var(--radius);
}
.cs-stat-num {
  font-size: 36px; font-weight: 600; letter-spacing: -0.025em; line-height: 1;
  font-family: var(--font-display); font-style: italic; color: var(--accent);
  margin-bottom: 6px;
}
.cs-stat-lbl {
  font-family: var(--font-mono); font-size: 10px; color: var(--fg-3);
  letter-spacing: 0.06em; text-transform: uppercase; line-height: 1.4;
}

/* ───────────────────────────── contact ───────────────────────────── */
.contact-wrap {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 80px 56px; text-align: center;
  background:
    radial-gradient(ellipse at top, var(--accent-soft), transparent 60%),
    var(--bg-2);
  position: relative; overflow: hidden;
}
.contact-eyebrow {
  font-family: var(--font-mono); font-size: 11px; color: var(--accent);
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
}
.contact-title {
  font-size: clamp(40px, 6vw, 80px); font-weight: 600; line-height: 1;
  letter-spacing: -0.035em; margin: 0 0 24px; text-wrap: balance;
}
.contact-title .serif { font-family: var(--font-display); font-style: italic; font-weight: 400; color: var(--accent); }
.contact-sub { font-size: 17px; color: var(--fg-2); max-width: 480px; margin: 0 auto 36px; line-height: 1.5; }

.contact-form { max-width: 520px; margin: 0 auto; display: grid; gap: 14px; text-align: left; }
.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .cf-row { grid-template-columns: 1fr; } }
.cf-field {
  position: relative;
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--bg);
  transition: border-color 0.2s;
}
.cf-field:focus-within { border-color: var(--accent); }
.cf-field label {
  position: absolute; top: 10px; left: 16px;
  font-family: var(--font-mono); font-size: 9.5px; color: var(--fg-3);
  letter-spacing: 0.05em; text-transform: uppercase; pointer-events: none;
}
.cf-field input, .cf-field textarea {
  width: 100%; background: transparent; border: 0; outline: none;
  color: var(--fg); font: inherit; font-size: 15px;
  padding: 28px 16px 14px;
}
.cf-field textarea { resize: vertical; min-height: 120px; font-family: inherit; }
.cf-submit {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px; background: var(--accent); color: #fff;
  border: 0; border-radius: 12px; font-size: 15px; font-weight: 500;
  transition: all 0.2s;
}
.cf-submit:hover { background: var(--accent-2); }
.cf-success {
  padding: 16px; border-radius: 12px; background: rgba(46, 224, 147, 0.1);
  border: 1px solid #2ee093; color: #2ee093; text-align: center; font-size: 14px;
}

.contact-meta {
  margin-top: 40px; padding-top: 36px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-around; gap: 24px; flex-wrap: wrap;
}
.contact-meta-item dt {
  font-family: var(--font-mono); font-size: 10px; color: var(--fg-3);
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 6px;
}
.contact-meta-item dd { margin: 0; font-size: 14px; color: var(--fg); font-weight: 500; }

/* ───────────────────────────── footer ───────────────────────────── */
.footer {
  padding: 60px 0 40px; border-top: 1px solid var(--line); margin-top: 60px;
}
.footer-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center;
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
}
.footer-brand-big {
  font-size: clamp(64px, 12vw, 160px); font-weight: 700; line-height: 0.85;
  letter-spacing: -0.05em; margin: 0 0 24px;
}
.footer-brand-big .serif { font-family: var(--font-display); font-style: italic; font-weight: 400; color: var(--accent); }
.footer-meta {
  display: flex; gap: 32px; font-family: var(--font-mono); font-size: 11px;
  color: var(--fg-3); letter-spacing: 0.04em; text-transform: uppercase;
  margin-top: 32px; padding-top: 32px; border-top: 1px solid var(--line);
  justify-content: space-between; flex-wrap: wrap;
}

.socials { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }
@media (max-width: 600px) { .socials { justify-content: center; } }
.social {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 18px; border: 1px solid var(--line); border-radius: 999px;
  font-size: 13px; color: var(--fg-2);
  transition: all 0.2s;
}
.social:hover { border-color: var(--accent); color: var(--fg); transform: translateY(-2px); }
.social svg { width: 16px; height: 16px; }

/* ───────────────────────────── modal ───────────────────────────── */
.modal-back {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.7);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  z-index: 200; display: flex; align-items: flex-start; justify-content: center;
  padding: 24px; opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.modal-back.open { opacity: 1; pointer-events: auto; }
.modal {
  width: 100%; max-width: 880px;
  max-height: 100%; overflow-y: auto;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transform: scale(0.96) translateY(8px); transition: transform 0.3s;
}
@media (max-width: 600px) {
  .modal-back { padding: 12px; }
}
.modal-back.open .modal { transform: scale(1) translateY(0); }
.modal-cover {
  aspect-ratio: 16 / 9; background: linear-gradient(135deg, var(--bg-3), var(--bg));
  position: relative; overflow: hidden; border-bottom: 1px solid var(--line);
}
.modal-close {
  position: absolute; top: 16px; right: 16px; z-index: 2;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.modal-close:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.modal-body { padding: 36px 40px 40px; }
@media (max-width: 600px) { .modal-body { padding: 24px; } }
.modal-tag {
  font-family: var(--font-mono); font-size: 11px; color: var(--accent);
  letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 12px;
}
.modal-title {
  font-size: clamp(28px, 4vw, 42px); font-weight: 600; line-height: 1.05;
  letter-spacing: -0.025em; margin: 0 0 20px;
}
.modal-meta {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  padding: 20px 0; margin: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.modal-meta dt {
  font-family: var(--font-mono); font-size: 9.5px; color: var(--fg-3);
  letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 4px;
}
.modal-meta dd { margin: 0; font-size: 14px; color: var(--fg); font-weight: 500; }
.modal-section { margin-top: 24px; }
.modal-section h4 {
  font-family: var(--font-mono); font-size: 11px; color: var(--accent);
  letter-spacing: 0.04em; text-transform: uppercase; margin: 0 0 12px;
}
.modal-section p { color: var(--fg-2); line-height: 1.6; font-size: 15px; margin: 0 0 12px; }
.modal-link {
  display: inline-flex; align-items: center; gap: 8px; margin-top: 24px;
  padding: 12px 20px; background: var(--accent); color: #fff;
  border-radius: 999px; font-size: 14px; font-weight: 500;
}
.modal-link:hover { background: var(--accent-2); }

/* ───────────────────────────── reveal animations ───────────────────────────── */
.r {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1),
              transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.r.in { opacity: 1; transform: translateY(0); }
.r.d1 { transition-delay: 0.05s; }
.r.d2 { transition-delay: 0.12s; }
.r.d3 { transition-delay: 0.2s; }
.r.d4 { transition-delay: 0.28s; }
.r.d5 { transition-delay: 0.36s; }
.r.d6 { transition-delay: 0.44s; }

/* loading screen */
.loader {
  position: fixed; inset: 0; background: var(--bg); z-index: 10000;
  display: flex; align-items: center; justify-content: center; flex-direction: column;
  gap: 24px; transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loader.gone { opacity: 0; visibility: hidden; }
.loader-mark {
  font-size: 80px; font-weight: 700; letter-spacing: -0.04em; line-height: 1;
}
.loader-mark .serif { font-family: var(--font-display); font-style: italic; font-weight: 400; color: var(--accent); }
.loader-pct {
  font-family: var(--font-mono); font-size: 11px; color: var(--fg-3);
  letter-spacing: 0.06em; text-transform: uppercase;
}