/* Studio — Direction A · Mithat Can Turan personal site */

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

:root {
  --bg:          #FAFAF9;
  --surface:     #FFFFFF;
  --text:        #18181B;
  --muted:       #71717A;
  --faint:       #A1A1AA;
  --border:      #E4E4E7;
  --border-soft: #EFEFEC;
  --accent:      #2D5BFF;
  --accent-soft: #EEF2FF;
  --font: "Inter", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;
  --px: clamp(20px, 6vw, 80px);
}

html { scroll-behavior: smooth; font-size: 15px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: var(--font); }

/* ── Nav ───────────────────────────────────────────────── */
.s-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--px);
  border-bottom: 1px solid var(--border-soft);
  background: rgba(250,250,249,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.s-nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.s-nav-mark {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: -0.04em;
  flex-shrink: 0;
  transition: opacity 0.15s;
}

.s-nav-logo:hover .s-nav-mark { opacity: 0.8; }

.s-nav-name {
  font-weight: 500;
  font-size: 14px;
  letter-spacing: -0.01em;
}

.s-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.s-nav-link {
  color: var(--muted);
  font-weight: 400;
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 6px;
  transition: color 0.15s;
}

.s-nav-link:hover,
.s-nav-link.active { color: var(--text); }
.s-nav-link.active { font-weight: 500; }

.s-nav-divider {
  width: 1px;
  height: 16px;
  background: var(--border);
  margin: 0 8px;
}

.s-nav-cta {
  font-size: 14px;
  padding: 7px 14px;
  background: var(--text);
  color: var(--bg);
  border-radius: 999px;
  font-weight: 500;
  transition: opacity 0.15s;
}

.s-nav-cta:hover { opacity: 0.82; }

.s-nav-burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text);
  line-height: 0;
}

/* ── Mobile menu ───────────────────────────────────────── */
.s-mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--surface);
  border-bottom: 1px solid var(--border-soft);
  padding: 8px var(--px) 16px;
}

.s-mobile-nav a {
  font-size: 15px;
  padding: 12px 0;
  color: var(--muted);
  border-bottom: 1px solid var(--border-soft);
  transition: color 0.15s;
}

.s-mobile-nav a:hover { color: var(--text); }
.s-mobile-nav a:last-child { border-bottom: none; }
.s-mobile-nav.open { display: flex; }

/* ── Buttons ───────────────────────────────────────────── */
.btn-solid {
  display: inline-block;
  padding: 12px 18px;
  background: var(--text);
  color: var(--bg);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  transition: opacity 0.15s;
}
.btn-solid:hover { opacity: 0.84; }

.btn-outline {
  display: inline-block;
  padding: 12px 18px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  transition: border-color 0.15s;
}
.btn-outline:hover { border-color: var(--text); }

/* ── Section chrome ────────────────────────────────────── */
.s-section { padding: 0 var(--px); }

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 32px;
}

.section-label {
  font-size: 13px;
  font-family: var(--mono);
  color: var(--faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 400;
}

.section-link {
  font-size: 14px;
  color: var(--muted);
  transition: color 0.15s;
}
.section-link:hover { color: var(--text); }

/* ── Hero ──────────────────────────────────────────────── */
.s-hero {
  padding: 112px var(--px) 64px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 28px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 0 4px rgba(16,185,129,0.15);
  flex-shrink: 0;
}

.s-hero h1 {
  font-size: clamp(38px, 6vw, 74px);
  line-height: 1.03;
  font-weight: 500;
  letter-spacing: -0.04em;
  max-width: 980px;
}

.s-hero h1 .dim { color: var(--muted); }

.hero-desc {
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.55;
  color: var(--muted);
  margin-top: 36px;
  max-width: 640px;
  letter-spacing: -0.005em;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* ── Now strip ─────────────────────────────────────────── */
.s-now {
  padding: 0 var(--px) 80px;
}

.now-card {
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  padding: 24px 28px;
  background: var(--surface);
  display: grid;
  grid-template-columns: 150px 1fr 1fr 1fr;
  gap: 24px;
  align-items: center;
}

.now-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.now-item-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.now-item-value {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}

/* ── Project rows ──────────────────────────────────────── */
.s-work { padding: 0 var(--px); }

.project-row {
  display: grid;
  grid-template-columns: 200px 1fr 1fr 110px;
  gap: 32px;
  padding: 24px 0;
  border-top: 1px solid var(--border-soft);
  align-items: flex-start;
  transition: opacity 0.18s;
}

.project-row:hover { opacity: 0.72; }

.project-num {
  display: none;
}

.project-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.project-title {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.3;
}

.project-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.project-stack {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.stack-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.project-cta {
  text-align: right;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

/* ── Writing teaser (home) ─────────────────────────────── */
.s-writing-teaser {
  padding: 96px var(--px) 0;
}

.post-row {
  display: grid;
  grid-template-columns: 140px 1fr 72px 72px;
  gap: 24px;
  padding: 20px 0;
  border-top: 1px solid var(--border-soft);
  align-items: center;
  transition: opacity 0.18s;
}

.post-row:hover { opacity: 0.72; }

.post-date {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
}

.post-title {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.015em;
}

.post-category {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  text-align: center;
}

.post-read {
  font-size: 13px;
  color: var(--faint);
  text-align: right;
}

/* ── Footer ────────────────────────────────────────────── */
.s-footer {
  padding: 72px var(--px) 52px;
  border-top: 1px solid var(--border-soft);
  margin-top: 96px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-cta-title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 500;
  letter-spacing: -0.03em;
  max-width: 540px;
  line-height: 1.2;
}

.footer-email {
  display: inline-block;
  margin-top: 18px;
  font-size: 16px;
  color: var(--accent);
  font-weight: 500;
  transition: opacity 0.15s;
}
.footer-email:hover { opacity: 0.75; }

.footer-right {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}

.footer-socials {
  display: flex;
  gap: 18px;
  font-size: 14px;
  color: var(--muted);
}

.footer-socials a {
  color: inherit;
  transition: color 0.15s;
}
.footer-socials a:hover { color: var(--text); }

.footer-copy {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
}

/* ── Writing page ──────────────────────────────────────── */
.writing-hero {
  padding: 96px var(--px) 48px;
}

.writing-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.writing-hero h1 {
  font-size: clamp(30px, 4.5vw, 54px);
  font-weight: 500;
  letter-spacing: -0.035em;
  max-width: 820px;
  line-height: 1.06;
}

.filter-tabs {
  display: flex;
  gap: 8px;
  margin-top: 32px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-tab {
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-family: var(--mono);
  cursor: pointer;
  transition: all 0.15s;
  appearance: none;
}

.filter-tab.active,
.filter-tab:hover {
  border-color: var(--text);
  background: var(--text);
  color: var(--bg);
}

.year-section {
  padding: 0 var(--px);
  margin-bottom: 48px;
}

.year-group {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 32px;
  align-items: flex-start;
}

.year-label {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--faint);
  padding-top: 22px;
}

.year-posts .post-row {
  grid-template-columns: 80px 1fr 72px 60px;
}

/* ── About page ────────────────────────────────────────── */
.about-hero {
  padding: 96px var(--px) 48px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 72px;
  align-items: flex-start;
}

.about-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.about-hero h1 {
  font-size: clamp(26px, 3.5vw, 46px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.12;
  max-width: 700px;
}

.about-bio {
  font-size: 17px;
  color: var(--muted);
  line-height: 1.7;
  margin-top: 28px;
  max-width: 680px;
}

.about-bio p + p { margin-top: 16px; }

.about-portrait {
  width: 100%;
  aspect-ratio: 4/5;
  border-radius: 12px;
  object-fit: cover;
  background: linear-gradient(135deg, #E4E4E7 0%, #A1A1AA 100%);
  display: block;
}

.portrait-caption {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  margin-top: 10px;
  text-align: center;
}

.experience-section {
  padding: 72px var(--px) 0;
}

.exp-row {
  display: grid;
  grid-template-columns: 200px 1fr 1fr 110px;
  gap: 32px;
  padding: 24px 0;
  border-top: 1px solid var(--border-soft);
}

.exp-company {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.015em;
}

.exp-role { font-size: 14px; color: var(--muted); }

.exp-desc {
  font-size: 14px;
  color: var(--text);
  margin-top: 6px;
  line-height: 1.55;
}

.exp-dates {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  line-height: 1.5;
}

.exp-loc {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  text-align: right;
}

.stack-about-section {
  padding: 72px var(--px) 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.stack-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.stack-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.stack-chip {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  padding: 5px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}

.stack-chip.adj {
  color: var(--muted);
  background: transparent;
  border-style: dashed;
  font-family: var(--font);
  font-size: 13px;
}

.lang-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--border-soft);
}

.lang-row:first-of-type { border-top: none; }
.lang-name { font-size: 16px; font-weight: 500; }
.lang-level { font-family: var(--mono); font-size: 13px; color: var(--muted); }

/* ── Project detail page ───────────────────────────────── */
.project-detail-hero {
  padding: 64px var(--px) 48px;
}

.breadcrumb {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  margin-bottom: 20px;
}

.breadcrumb a { color: inherit; transition: color 0.15s; }
.breadcrumb a:hover { color: var(--text); }

.project-header-grid {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 64px;
  align-items: flex-end;
}

.project-header-grid h1 {
  font-size: clamp(34px, 5vw, 62px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.project-meta { display: flex; flex-direction: column; gap: 16px; font-size: 13px; }

.meta-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.meta-val { font-size: 14px; }
.meta-link { color: var(--accent); font-size: 14px; transition: opacity 0.15s; }
.meta-link:hover { opacity: 0.75; }

.project-summary {
  font-size: clamp(17px, 1.8vw, 22px);
  color: var(--muted);
  margin-top: 28px;
  max-width: 820px;
  line-height: 1.5;
  letter-spacing: -0.005em;
}

.project-hero-img {
  padding: 0 var(--px);
}

.project-hero-img-inner {
  height: clamp(280px, 35vw, 480px);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-hero-img-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-content { padding: 80px var(--px) 0; }

.content-block {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 64px;
  margin-bottom: 72px;
}

.content-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 4px;
}

.content-body {
  font-size: 17px;
  line-height: 1.7;
  max-width: 720px;
  color: var(--text);
}

.content-body p + p { margin-top: 16px; }

.outcomes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.outcome-card {
  padding: 24px;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  background: var(--surface);
}

.outcome-num {
  font-size: 44px;
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
}

.outcome-label {
  font-size: 14px;
  color: var(--muted);
  margin-top: 8px;
  line-height: 1.5;
}

.next-project-section { padding: 96px var(--px) 0; }

.next-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.next-project-row {
  display: grid;
  grid-template-columns: 1fr 180px;
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  align-items: center;
  transition: opacity 0.18s;
}

.next-project-row:hover { opacity: 0.72; }
.next-project-title { font-size: 22px; font-weight: 500; letter-spacing: -0.025em; }
.next-project-sub { font-size: 14px; color: var(--muted); margin-top: 4px; }
.next-project-cta { text-align: right; font-size: 13px; color: var(--muted); }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 920px) {
  .s-nav-links { display: none; }
  .s-nav-burger { display: block; }

  .now-card {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .now-eyebrow { grid-column: 1 / -1; }

  .project-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .exp-dates { display: none; }
  .project-cta { text-align: left; }

  .post-row { grid-template-columns: 120px 1fr 60px; }
  .post-read { display: none; }

  .year-posts .post-row { grid-template-columns: 72px 1fr 60px; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-portrait-wrap { max-width: 260px; }

  .exp-row { grid-template-columns: 1fr 1fr; gap: 16px; }
  .exp-dates, .exp-loc { display: none; }

  .stack-about-section { grid-template-columns: 1fr; gap: 40px; }

  .project-header-grid { grid-template-columns: 1fr; gap: 32px; }

  .content-block { grid-template-columns: 1fr; gap: 16px; }

  .outcomes-grid { grid-template-columns: 1fr; }

  .year-group { grid-template-columns: 1fr; }
  .year-label { padding-top: 0; margin-bottom: 8px; }
}

@media (max-width: 600px) {
  .s-hero { padding-top: 64px; }

  .now-card { grid-template-columns: 1fr; }

  .post-row { grid-template-columns: 1fr; gap: 6px; }
  .post-date { font-size: 11px; }
  .post-category { justify-self: start; }

  .year-posts .post-row { grid-template-columns: 1fr; gap: 6px; }

  .footer-inner { align-items: flex-start; }
  .footer-right { align-items: flex-start; }
  .footer-socials { flex-wrap: wrap; gap: 12px; }
}