/* ---------------------------------- */
/* Zeynep Onat Pilavcı — Portfolio    */
/* ---------------------------------- */

:root {
  --bg: #faf9f7;
  --bg-alt: #f1efeb;
  --ink: #1c1b19;
  --ink-soft: #55534e;
  --ink-faint: #8a877f;
  --accent: #4f46e5;
  --accent-soft: #eceafd;
  --line: #e4e1da;
  --card: #ffffff;
  --radius: 14px;
  --maxw: 1080px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
.display {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Nav ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 249, 247, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.nav a {
  text-decoration: none;
}

.nav .logo {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 700;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--ink-soft);
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--ink);
}

/* ---- Hero ---- */
.hero {
  padding: 96px 0 72px;
}

.hero .kicker {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.5rem);
  max-width: 18ch;
  margin-bottom: 28px;
}

.hero h1 em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.hero p {
  max-width: 58ch;
  color: var(--ink-soft);
  font-size: 1.15rem;
}

/* ---- Work grid ---- */
.section {
  padding: 64px 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 36px;
}

.section-head h2 {
  font-size: 1.9rem;
}

.section-head .count {
  color: var(--ink-faint);
  font-size: 0.9rem;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.work-card {
  display: block;
  text-decoration: none;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 40px rgba(28, 27, 25, 0.09);
}

.work-card .thumb {
  height: 260px;
  overflow: hidden;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--line);
}

.work-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.work-card .body {
  padding: 22px 24px 26px;
}

.work-card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tag {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 999px;
}

.work-card h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.work-card p {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---- About / strengths ---- */
.about {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-cols {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}

.about h2 {
  font-size: 1.9rem;
  margin-bottom: 20px;
}

.about p {
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.strengths {
  display: grid;
  gap: 16px;
}

.strength {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
}

.strength h3 {
  font-size: 1.02rem;
  margin-bottom: 6px;
  font-family: "Inter", sans-serif;
  font-weight: 600;
}

.strength p {
  font-size: 0.92rem;
  margin: 0;
}

/* ---- Contact ---- */
.contact {
  text-align: center;
  padding: 96px 0;
}

.contact h2 {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.contact p {
  color: var(--ink-soft);
  margin-bottom: 28px;
}

.btn {
  display: inline-block;
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
  font-weight: 600;
  padding: 14px 30px;
  border-radius: 999px;
  transition: background 0.15s;
}

.btn:hover {
  background: var(--accent);
}

footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--ink-faint);
  font-size: 0.85rem;
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

footer a {
  color: var(--ink-soft);
}

/* ---- Case study pages ---- */
.cs-hero {
  padding: 80px 0 48px;
  border-bottom: 1px solid var(--line);
}

.cs-hero .kicker {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

.cs-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  max-width: 24ch;
  margin-bottom: 20px;
}

.cs-hero .lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 62ch;
}

.cs-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.cs-meta div h4 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin-bottom: 4px;
  font-weight: 600;
}

.cs-meta div p {
  font-size: 0.95rem;
}

.cs-body {
  padding: 56px 0 32px;
}

.cs-body h2 {
  font-size: 1.6rem;
  margin: 56px 0 18px;
}

.cs-body h2:first-child {
  margin-top: 0;
}

.cs-body p,
.cs-body li {
  color: var(--ink-soft);
  max-width: 68ch;
}

.cs-body p+p {
  margin-top: 14px;
}

.cs-body ul,
.cs-body ol {
  padding-left: 22px;
  margin: 14px 0;
}

.cs-body li+li {
  margin-top: 8px;
}

.cs-body strong {
  color: var(--ink);
}

.figure {
  margin: 36px 0;
}

.figure img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.figure figcaption {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--ink-faint);
}

.figure.framed img {
  padding: 20px;
  background: #fff;
}

.callout {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 18px 24px;
  margin: 28px 0;
  max-width: 68ch;
}

.callout p {
  color: var(--ink);
  margin: 0;
  font-size: 1rem;
}

.two-up {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 36px 0;
}

.two-up .figure {
  margin: 0;
}

/* prev / next */
.cs-nav {
  border-top: 1px solid var(--line);
  margin-top: 64px;
  padding: 40px 0 72px;
}

.cs-nav .wrap {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.cs-nav a {
  text-decoration: none;
  max-width: 44%;
}

.cs-nav .label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 6px;
}

.cs-nav .title {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.15rem;
  font-weight: 600;
}

.cs-nav a:hover .title {
  color: var(--accent);
}

.cs-nav .next {
  text-align: right;
  margin-left: auto;
}

/* ---- Responsive ---- */
@media (max-width: 820px) {
  .work-grid {
    grid-template-columns: 1fr;
  }

  .about-cols {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cs-meta {
    grid-template-columns: repeat(2, 1fr);
  }

  .two-up {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: 18px;
  }

  .hero {
    padding: 64px 0 48px;
  }
}