/* ── Reset & Base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #efefef;
  --bg-dark:   #0e0e0e;
  --text:      #0e0e0e;
  --muted:     #6d6d6d;
  --subtle:    #999;
  --border:    #d4d4d4;
  --white:     #ffffff;
  --accent:    #0e0e0e;
  --font-sans: "Inter Tight", "Inter", system-ui, sans-serif;
  --font-mono: "Fragment Mono", "Courier New", monospace;
  --max:       1200px;
  --pad:       clamp(20px, 5vw, 80px);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Fonts ─────────────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter+Tight:wght@400;500;600;700&family=Fragment+Mono&display=swap');

/* ── Layout helpers ────────────────────────────────────────────────────── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.section    { padding: 100px 0; }

/* ── Nav ───────────────────────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px var(--pad);
  background: var(--bg);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
nav.scrolled { border-bottom-color: var(--border); }

.nav-logo {
  font-size: 13px; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase;
}

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 13px; color: var(--muted); transition: color .2s; }
.nav-links a:hover { color: var(--text); }

.nav-cta {
  font-size: 13px; font-weight: 500;
  padding: 10px 20px;
  background: var(--text); color: var(--white);
  border-radius: 100px;
  transition: opacity .2s;
}
.nav-cta:hover { opacity: .8; }

/* copy feedback */
.nav-cta.copied::after { content: " ✓"; }

/* mobile nav toggle */
.nav-toggle { display: none; cursor: pointer; flex-direction: column; gap: 5px; background: none; border: none; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); transition: .3s; }

/* mobile nav open state */
@media (max-width: 900px) {
  .nav-links.nav-open {
    display: flex; flex-direction: column; gap: 20px;
    position: fixed; top: 72px; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: 28px var(--pad); z-index: 99;
  }
  .nav-links.nav-open .nav-cta { align-self: flex-start; }
}

/* ── Hero ──────────────────────────────────────────────────────────────── */
.hero {
  padding-top: 140px;
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--muted);
  letter-spacing: .08em; text-transform: uppercase;
  margin-bottom: 24px;
  display: flex; align-items: center; gap: 10px;
}
.hero-eyebrow::before { content: ''; display: block; width: 32px; height: 1px; background: var(--muted); }

.hero-headline {
  font-size: clamp(72px, 12vw, 160px);
  font-weight: 700;
  line-height: .92;
  letter-spacing: -.04em;
  text-transform: uppercase;
  overflow: hidden;
}

.hero-headline .line { display: block; overflow: hidden; }
.hero-headline .line span { display: block; transform: translateY(110%); animation: slideUp 1s cubic-bezier(.6,.2,0,1) forwards; }
.hero-headline .line:nth-child(1) span { animation-delay: .05s; }
.hero-headline .line:nth-child(2) span { animation-delay: .12s; }

@keyframes slideUp { to { transform: translateY(0); } }

.hero-sub {
  margin-top: 40px;
  display: flex; align-items: flex-start; gap: 60px;
  flex-wrap: wrap;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 6px 14px; border-radius: 100px;
  white-space: nowrap;
}

.hero-body {
  max-width: 520px;
}
.hero-body p { font-size: 16px; color: var(--muted); line-height: 1.7; margin-bottom: 12px; }
.hero-body p:last-child { margin-bottom: 0; }

.hero-ctas { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 500;
  padding: 13px 26px; border-radius: 100px;
  transition: all .2s;
}
.btn-dark  { background: var(--text); color: var(--white); }
.btn-dark:hover  { opacity: .85; }
.btn-light { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-light:hover { background: var(--white); }

/* ── Stats bar ─────────────────────────────────────────────────────────── */
.stats {
  display: flex; gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 80px 0 0;
}
.stat {
  flex: 1; padding: 28px 0;
  border-right: 1px solid var(--border);
  text-align: center;
}
.stat:last-child { border-right: none; }
.stat-number { font-size: clamp(28px, 5vw, 42px); font-weight: 700; letter-spacing: -.03em; }
.stat-label  { font-size: 12px; color: var(--muted); margin-top: 4px; text-transform: uppercase; letter-spacing: .08em; }

/* ── Section label ─────────────────────────────────────────────────────── */
.section-label {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 48px;
  display: flex; align-items: center; gap: 12px;
}
.section-label::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.section-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700; letter-spacing: -.03em;
  line-height: 1.1; margin-bottom: 60px;
}

/* ── Process ───────────────────────────────────────────────────────────── */
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.process-item {
  background: var(--bg);
  padding: 36px 32px;
  transition: background .2s;
}
.process-item:hover { background: var(--white); }

.process-num {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--muted);
  margin-bottom: 20px;
}
.process-name { font-size: 16px; font-weight: 600; margin-bottom: 10px; }
.process-desc { font-size: 14px; color: var(--muted); line-height: 1.6; }

/* ── Experience ────────────────────────────────────────────────────────── */
.experience-list { display: flex; flex-direction: column; gap: 0; }

.exp-item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
  transition: background .2s;
}
.exp-item:first-child { border-top: 1px solid var(--border); }

.exp-meta {}
.exp-company { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.exp-role    { font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.exp-date    { font-family: var(--font-mono); font-size: 11px; color: var(--subtle); letter-spacing: .06em; }

.exp-desc { font-size: 15px; color: var(--muted); line-height: 1.7; align-self: center; }

/* ── Projects grid ─────────────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}

.project-card {
  background: var(--bg);
  padding: 44px 40px;
  display: flex; flex-direction: column; justify-content: space-between;
  min-height: 260px;
  transition: background .25s;
  position: relative;
  overflow: hidden;
}
.project-card:hover { background: var(--white); }

.project-card-top {}
.project-tag  { font-family: var(--font-mono); font-size: 11px; color: var(--muted); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 16px; }
.project-name { font-size: clamp(18px, 2.5vw, 26px); font-weight: 700; letter-spacing: -.02em; line-height: 1.2; margin-bottom: 12px; }
.project-desc { font-size: 14px; color: var(--muted); line-height: 1.6; }

.project-card-bottom { margin-top: 32px; display: flex; align-items: center; justify-content: space-between; }
.project-year { font-family: var(--font-mono); font-size: 11px; color: var(--subtle); }
.project-arrow {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; transition: all .2s;
}
.project-card:hover .project-arrow { background: var(--text); color: var(--white); border-color: var(--text); }

/* ── Footer / bio ──────────────────────────────────────────────────────── */
.bio-section {
  background: var(--bg-dark);
  color: var(--white);
  padding: 80px var(--pad);
}
.bio-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.bio-name  { font-size: clamp(36px, 6vw, 72px); font-weight: 700; letter-spacing: -.04em; line-height: 1; margin-bottom: 20px; }
.bio-title { font-size: 15px; color: rgba(255,255,255,.5); margin-bottom: 32px; }
.bio-cta   { font-size: 15px; color: rgba(255,255,255,.7); line-height: 1.7; margin-bottom: 32px; }

.bio-links { display: flex; gap: 16px; flex-wrap: wrap; }
.bio-link  {
  font-size: 13px; padding: 10px 20px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 100px; color: rgba(255,255,255,.8);
  transition: all .2s;
}
.bio-link:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.4); }

.bio-projects {}
.bio-projects-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; color: rgba(255,255,255,.3); text-transform: uppercase; margin-bottom: 20px; }
.bio-project-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  font-size: 15px; color: rgba(255,255,255,.7);
  transition: color .2s;
}
.bio-project-item:first-of-type { border-top: 1px solid rgba(255,255,255,.08); }
.bio-project-item:hover { color: var(--white); }
.bio-project-item span { font-size: 18px; }

/* ── Page footer ───────────────────────────────────────────────────────── */
.page-footer {
  background: var(--bg-dark);
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 24px var(--pad);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.page-footer p { font-size: 12px; color: rgba(255,255,255,.3); }
.footer-socials { display: flex; gap: 20px; }
.footer-socials a { font-size: 12px; color: rgba(255,255,255,.3); transition: color .2s; }
.footer-socials a:hover { color: rgba(255,255,255,.8); }

/* ── Work page ─────────────────────────────────────────────────────────── */
.work-hero { padding-top: 160px; padding-bottom: 60px; }
.work-hero h1 { font-size: clamp(48px, 8vw, 96px); font-weight: 700; letter-spacing: -.04em; line-height: 1; }
.work-hero p  { font-size: 16px; color: var(--muted); margin-top: 20px; max-width: 480px; }

.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 120px;
}

.work-card {
  background: var(--bg);
  padding: 48px 44px;
  min-height: 340px;
  display: flex; flex-direction: column; justify-content: space-between;
  transition: background .25s;
  text-decoration: none; color: inherit;
}
.work-card:hover { background: var(--white); }
.work-card-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; }
.work-card-index { font-family: var(--font-mono); font-size: 11px; color: var(--subtle); }
.work-card-year  { font-family: var(--font-mono); font-size: 11px; color: var(--subtle); }
.work-card-name  { font-size: clamp(22px, 3vw, 32px); font-weight: 700; letter-spacing: -.03em; line-height: 1.15; margin-bottom: 12px; }
.work-card-client{ font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.work-card-cat   { font-family: var(--font-mono); font-size: 11px; color: var(--subtle); text-transform: uppercase; letter-spacing: .1em; }
.work-card-footer{ margin-top: 32px; display: flex; align-items: center; justify-content: space-between; }
.work-card-arrow {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; transition: all .2s;
}
.work-card:hover .work-card-arrow { background: var(--text); color: var(--white); border-color: var(--text); }

/* ── Case study ────────────────────────────────────────────────────────── */
.case-hero {
  padding-top: 160px; padding-bottom: 80px;
  border-bottom: 1px solid var(--border);
}
.case-back { font-size: 13px; color: var(--muted); margin-bottom: 40px; display: inline-flex; align-items: center; gap: 8px; transition: color .2s; }
.case-back:hover { color: var(--text); }
.case-hero-meta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.case-tag { font-family: var(--font-mono); font-size: 11px; padding: 5px 14px; border: 1px solid var(--border); border-radius: 100px; color: var(--muted); letter-spacing: .08em; }
.case-hero h1 { font-size: clamp(36px, 6vw, 72px); font-weight: 700; letter-spacing: -.04em; line-height: 1.05; margin-bottom: 20px; }
.case-hero-sub { font-size: 18px; color: var(--muted); max-width: 600px; line-height: 1.7; }

.case-stats {
  display: flex; gap: 0;
  border: 1px solid var(--border);
  border-radius: 16px; overflow: hidden;
  margin: 60px 0;
}
.case-stat { flex: 1; padding: 28px 32px; border-right: 1px solid var(--border); }
.case-stat:last-child { border-right: none; }
.case-stat-label { font-family: var(--font-mono); font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; }
.case-stat-value { font-size: 22px; font-weight: 700; letter-spacing: -.02em; }

.case-body { max-width: 720px; margin: 0 auto; padding: 80px var(--pad); }
.case-body h2 { font-size: 24px; font-weight: 700; margin-bottom: 16px; margin-top: 56px; }
.case-body h2:first-child { margin-top: 0; }
.case-body p  { font-size: 16px; color: var(--muted); line-height: 1.8; margin-bottom: 20px; }
.case-body ul { padding-left: 20px; margin-bottom: 20px; }
.case-body li { font-size: 16px; color: var(--muted); line-height: 1.8; margin-bottom: 8px; }

.case-result {
  background: var(--bg-dark); color: var(--white);
  border-radius: 16px; padding: 48px;
  margin: 48px 0;
}
.case-result h3 { font-size: 18px; font-weight: 600; margin-bottom: 20px; }
.case-result-list { list-style: none; padding: 0; }
.case-result-list li { font-size: 15px; color: rgba(255,255,255,.7); padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.08); display: flex; gap: 12px; }
.case-result-list li::before { content: '↑'; color: rgba(255,255,255,.3); flex-shrink: 0; }

.case-next { border-top: 1px solid var(--border); padding: 60px 0; display: flex; align-items: center; justify-content: space-between; }
.case-next-label { font-family: var(--font-mono); font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 8px; }
.case-next-name  { font-size: 22px; font-weight: 700; }
.case-next-arrow { font-size: 32px; }

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid, .work-grid { grid-template-columns: 1fr; }
  .bio-inner { grid-template-columns: 1fr; gap: 48px; }
  .exp-item  { grid-template-columns: 1fr; gap: 12px; }
  .case-stats { flex-direction: column; }
  .case-stat  { border-right: none; border-bottom: 1px solid var(--border); }
  .case-stat:last-child { border-bottom: none; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}

@media (max-width: 600px) {
  .process-grid { grid-template-columns: 1fr; }
  .hero-headline { font-size: clamp(56px, 14vw, 100px); }
  .stats { flex-direction: column; }
  .stat  { border-right: none; border-bottom: 1px solid var(--border); }
  .stat:last-child { border-bottom: none; }
  .case-body { padding: 60px 20px; }
}

/* ── Scroll animation ──────────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(32px); transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }