/* ==========================================================================
   ENGIN BAYRAK — Editorial Grid System (Mono structure, Red-dominant palette)
   Swiss broadsheet discipline: hairline frames, square corners, light type.
   ========================================================================== */

:root {
  /* ---- Palette: red and its tones dominate, charcoal for body, paper white ---- */
  --paper: #ffffff;
  --ink: #2a2a2a;            /* body copy — charcoal for readability */
  --ink-soft: #6a6a6a;
  --red: #a30c14;           /* primary deep editorial red */
  --red-2: #c8161d;         /* brighter red */
  --red-3: #d9272f;         /* highlight red */
  --red-deep: #7a070d;      /* darkest red — frames, emphasis */
  --line: #a30c14;          /* hairline frames / gridlines */
  --line-soft: #e7cccd;     /* faint red hairline for dense dividers */
  --wash: #fbf3f3;          /* barely-there red wash, used sparingly */

  /* ---- Typography ---- */
  --font-nh: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-cond: 'Barlow Condensed', 'Inter', ui-sans-serif, system-ui, sans-serif;

  /* ---- Layout ---- */
  --max: 1200px;
  --gap: 50px;
  --frame: 1px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-nh);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.32px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

/* ---- Shell: centered page with vertical frame lines ---- */
.shell {
  max-width: var(--max);
  margin: 0 auto;
  border-left: var(--frame) solid var(--line);
  border-right: var(--frame) solid var(--line);
  min-height: 100vh;
}

/* ==========================================================================
   Typographic primitives
   ========================================================================== */

.label {
  font-family: var(--font-cond);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--red);
  display: block;
}
.label-rule {
  border-top: var(--frame) solid var(--line);
  margin-top: 10px;
  margin-bottom: 28px;
}

.meta {
  font-family: var(--font-cond);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.hero-title {
  font-family: var(--font-nh);
  font-weight: 100;
  font-size: clamp(40px, 7vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--red);
  margin: 0;
}
.display {
  font-family: var(--font-nh);
  font-weight: 300;
  font-size: clamp(28px, 4.4vw, 43px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--red);
  margin: 0;
}
.subhead {
  font-family: var(--font-nh);
  font-weight: 300;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.27;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
}
.lede {
  font-size: 18px;
  line-height: 1.55;
  font-weight: 300;
  color: var(--ink);
}
p { margin: 0 0 18px; }

/* ==========================================================================
   Top navigation
   ========================================================================== */
.nav {
  display: flex;
  align-items: stretch;
  border-bottom: var(--frame) solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 22px;
  border-right: var(--frame) solid var(--line);
  font-family: var(--font-cond);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red);
  white-space: nowrap;
}
.brand .glyph {
  width: 11px; height: 11px; background: var(--red); display: inline-block;
}
.nav-links {
  display: flex;
  flex: 1;
  align-items: stretch;
}
.nav-links a {
  display: flex;
  align-items: center;
  padding: 0 20px;
  font-family: var(--font-cond);
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  border-right: var(--frame) solid var(--line-soft);
  transition: background .2s ease, color .2s ease;
}
.nav-links a:hover { color: var(--red); }
.nav-links a.active { background: var(--red); color: var(--paper); }
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 20px;
  border-left: var(--frame) solid var(--line);
}
.lang-toggle button {
  font-family: var(--font-cond);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: none;
  border: var(--frame) solid transparent;
  padding: 4px 8px;
  cursor: pointer;
  line-height: 1;
}
.lang-toggle button.active { color: var(--red); border-color: var(--red); }

/* mobile nav toggle */
.nav-burger {
  display: none;
  margin-left: auto;
  background: none;
  border: none;
  border-left: var(--frame) solid var(--line);
  padding: 0 20px;
  cursor: pointer;
  font-family: var(--font-cond);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-block;
  font-family: var(--font-cond);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  background: transparent;
  border: var(--frame) solid var(--red);
  padding: 9px 22px;
  cursor: pointer;
  transition: background .2s ease, color .2s ease;
}
.btn:hover { background: var(--red); color: var(--paper); }
.btn--ghost { border-color: transparent; padding-left: 0; }
.btn--ghost:hover { background: transparent; color: var(--red-deep); text-decoration: underline; }

/* ==========================================================================
   Generic section
   ========================================================================== */
.section { padding: var(--gap) 28px; border-bottom: var(--frame) solid var(--line); }
.section:last-of-type { border-bottom: none; }

/* ==========================================================================
   HOME — hero
   ========================================================================== */
.hero {
  display: grid;
  grid-template-columns: 1.15fr 1fr 64px;
  border-bottom: var(--frame) solid var(--line);
}
.hero-left { padding: 44px 28px; border-right: var(--frame) solid var(--line); }
.hero-left .eyebrow { margin-bottom: 26px; }
.hero-left .hero-title { margin-bottom: 18px; }
.hero-left .roles {
  font-family: var(--font-cond);
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 30px;
}
.hero-left .intro { max-width: 44ch; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-center {
  border-right: var(--frame) solid var(--line);
  background: var(--paper);
  position: relative;
  overflow: hidden;
  min-height: 360px;
}
.hero-center img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(8%); }

.hero-right {
  display: flex;
  align-items: center;
  justify-content: center;
}
.vertical-text {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-cond);
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
  white-space: nowrap;
}

/* ---- quick facts strip ---- */
.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: var(--frame) solid var(--line);
}
.fact {
  padding: 30px 24px;
  border-right: var(--frame) solid var(--line-soft);
}
.fact:last-child { border-right: none; }
.fact .num {
  font-family: var(--font-nh);
  font-weight: 100;
  font-size: clamp(34px, 4vw, 52px);
  color: var(--red);
  line-height: 1;
  letter-spacing: -0.03em;
}
.fact .cap { margin-top: 10px; }

/* ---- selected works grid ---- */
.works {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.work {
  border-right: var(--frame) solid var(--line-soft);
  border-bottom: var(--frame) solid var(--line-soft);
  text-decoration: none;
  display: block;
  transition: background .2s ease;
}
.work:hover { background: var(--wash); }
.work .thumb { aspect-ratio: 1/1; border-bottom: var(--frame) solid var(--line-soft); overflow: hidden; background: var(--paper); }
.work .thumb img { width: 100%; height: 100%; object-fit: cover; }
.work .thumb img.contain { object-fit: contain; }
.work .body { padding: 16px 18px 22px; }
.work .body h3 { font-family: var(--font-nh); font-weight: 300; font-size: 20px; letter-spacing: -0.02em; margin: 0 0 8px; color: var(--ink); }

/* ==========================================================================
   BIOGRAPHY
   ========================================================================== */
.bio-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
}
.bio-portrait { border-right: var(--frame) solid var(--line); background: var(--paper); }
.bio-portrait img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
.bio-text { padding: 44px 34px; }
.bio-text .display { margin-bottom: 8px; }

.disciplines { display: flex; flex-wrap: wrap; gap: 0; margin: 6px 0 0; border-top: var(--frame) solid var(--line-soft); }
.disciplines span {
  font-family: var(--font-cond);
  font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--red); padding: 10px 16px 10px 0;
}
.disciplines span::after { content: "/"; color: var(--line-soft); margin-left: 16px; }
.disciplines span:last-child::after { content: ""; }

.highlights { margin-top: 12px; }
.highlight {
  display: grid; grid-template-columns: 120px 1fr; gap: 18px;
  padding: 20px 0; border-top: var(--frame) solid var(--line-soft);
}
.highlight .h-key { font-family: var(--font-cond); font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--red); }
.highlight .h-val { color: var(--ink); }

/* ==========================================================================
   PROJECTS
   ========================================================================== */
.proj-head { padding: 44px 28px; border-bottom: var(--frame) solid var(--line); }
.cat-nav {
  display: flex; flex-wrap: wrap; gap: 0;
  border-bottom: var(--frame) solid var(--line);
  position: sticky; top: 0; background: var(--paper); z-index: 20;
}
.cat-nav a {
  font-family: var(--font-cond); font-weight: 400; font-size: 12px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink);
  padding: 14px 16px; border-right: var(--frame) solid var(--line-soft);
  transition: background .2s ease, color .2s ease;
}
.cat-nav a:hover { color: var(--red); }
.cat-nav a.active { background: var(--red); color: var(--paper); }

.cat-section { border-bottom: var(--frame) solid var(--line); }
.cat-title {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 30px 28px 18px;
}
.cat-title h2 { font-family: var(--font-nh); font-weight: 300; font-size: clamp(24px, 3.4vw, 36px); letter-spacing: -0.02em; color: var(--red); margin: 0; }
.cat-title .count { font-family: var(--font-cond); font-size: 13px; letter-spacing: 0.14em; color: var(--ink-soft); }

.proj-list { display: grid; grid-template-columns: repeat(2, 1fr); }
.proj-row {
  display: grid; grid-template-columns: 92px 1fr; gap: 18px;
  align-items: center;
  padding: 14px 28px;
  border-top: var(--frame) solid var(--line-soft);
  border-right: var(--frame) solid var(--line-soft);
  transition: background .2s ease;
}
.proj-row:hover { background: var(--wash); }
.proj-poster {
  width: 92px; height: 92px;
  border: var(--frame) solid var(--line);
  background: var(--paper);
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  flex: none;
}
.proj-poster img { width: 100%; height: 100%; object-fit: cover; }
.proj-poster img.contain { object-fit: contain; padding: 4px; } /* square posters shown fully */
.proj-poster.placeholder { position: relative; }
.proj-poster.placeholder .ph-initials {
  font-family: var(--font-nh); font-weight: 100; font-size: 30px;
  color: var(--red); letter-spacing: -0.04em;
}
.proj-poster.placeholder .ph-glyph {
  position: absolute; top: 6px; left: 6px; width: 7px; height: 7px; background: var(--red);
}
.proj-info h3 { font-family: var(--font-nh); font-weight: 300; font-size: 19px; letter-spacing: -0.02em; color: var(--ink); margin: 0 0 4px; }
.proj-info .pmeta { font-family: var(--font-cond); font-size: 12.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); }
.proj-info .pnote { font-family: var(--font-cond); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--red); margin-top: 4px; }

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; }
.contact-left { padding: 44px 34px; border-right: var(--frame) solid var(--line); }
.contact-right { padding: 44px 34px; }
.contact-email { font-family: var(--font-nh); font-weight: 300; font-size: clamp(22px, 3vw, 30px); letter-spacing: -0.02em; color: var(--red); display: inline-block; margin: 6px 0 30px; }
.contact-email:hover { text-decoration: underline; }

.social-list { border-top: var(--frame) solid var(--line-soft); }
.social-list a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 2px; border-bottom: var(--frame) solid var(--line-soft);
  font-family: var(--font-cond); font-size: 15px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink); transition: color .2s ease, padding .2s ease;
}
.social-list a:hover { color: var(--red); padding-left: 12px; }
.social-list a .arrow { color: var(--red); }

.field { margin-bottom: 22px; }
.field label { font-family: var(--font-cond); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--red); display: block; margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%; background: transparent; border: none;
  border-bottom: var(--frame) solid var(--ink);
  font-family: var(--font-cond); font-size: 15px; letter-spacing: 0.04em;
  color: var(--ink); padding: 8px 0; outline: none;
}
.field textarea { resize: vertical; min-height: 90px; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink); opacity: .45; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 28px; border-top: var(--frame) solid var(--line);
  flex-wrap: wrap; gap: 16px;
}
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a, .footer .copyr {
  font-family: var(--font-cond); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft);
}
.footer-links a:hover { color: var(--red); }
.footer .wordmark { display: flex; align-items: center; gap: 8px; font-family: var(--font-cond); font-size: 14px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--red); }
.footer .wordmark .glyph { width: 10px; height: 10px; background: var(--red); }

/* ==========================================================================
   Animations (revealed by IntersectionObserver)
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-left { border-right: none; border-bottom: var(--frame) solid var(--line); }
  .hero-center { border-right: none; border-bottom: var(--frame) solid var(--line); min-height: 320px; }
  .hero-right { display: none; }
  .facts { grid-template-columns: repeat(2, 1fr); }
  .fact:nth-child(2) { border-right: none; }
  .works { grid-template-columns: repeat(2, 1fr); }
  .bio-grid, .contact-grid { grid-template-columns: 1fr; }
  .bio-portrait { border-right: none; border-bottom: var(--frame) solid var(--line); }
  .contact-left { border-right: none; border-bottom: var(--frame) solid var(--line); }
  .proj-list { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav { flex-wrap: wrap; position: relative; }
  .brand { flex: 1; border-right: none; }
  .nav-burger { display: flex; align-items: center; }
  .nav-links { display: none; flex-direction: column; width: 100%; flex-basis: 100%; order: 3; border-top: var(--frame) solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-links a { border-right: none; border-bottom: var(--frame) solid var(--line-soft); padding: 16px 22px; }
  .lang-toggle { order: 2; border-left: var(--frame) solid var(--line); }
  .facts { grid-template-columns: 1fr 1fr; }
  .works { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 460px) {
  .works { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr; }
  .fact { border-right: none; border-bottom: var(--frame) solid var(--line-soft); }
}