/* Gökalp Dolgun — portfolio. Hand-written; no framework. */
:root {
  --bg: #f4f1eb;
  --bg-2: #ebe6dc;
  --ink: #171512;
  --ink-2: #5d5750;
  --ink-3: #8a837a;
  --line: #d9d3c8;
  --accent: #7a1f2b;
  --frame: #1b1917;
  --shadow: 0 30px 60px -30px rgba(23,21,18,.35), 0 10px 24px -16px rgba(23,21,18,.25);
  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --max: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141210; --bg-2: #1d1a17; --ink: #ece7de; --ink-2: #b4ada3; --ink-3: #7e7870; --line: #2d2924; --accent: #e08a95; --frame: #0b0a09;
    --shadow: 0 30px 60px -30px rgba(0,0,0,.8), 0 10px 24px -16px rgba(0,0,0,.6);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #141210; --bg-2: #1d1a17; --ink: #ece7de; --ink-2: #b4ada3; --ink-3: #7e7870; --line: #2d2924; --accent: #e08a95; --frame: #0b0a09;
  --shadow: 0 30px 60px -30px rgba(0,0,0,.8), 0 10px 24px -16px rgba(0,0,0,.6);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--sans); font-size: 17px; line-height: 1.55;
  font-feature-settings: "ss01", "cv11"; -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
figure { margin: 0; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: var(--accent); }
::selection { background: var(--accent); color: var(--bg); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }
.serif { font-family: var(--serif); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* registered mark after the Clinico wordmark */
.reg { font-family: var(--sans); font-weight: 500; font-style: normal; font-size: .42em; line-height: 0; vertical-align: super; margin-left: .06em; letter-spacing: 0; }
h1 .reg, .case-head h1 .reg, .work-meta h3 .reg { font-size: .3em; }

/* header */
.top { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; padding: 28px 0 0; }
.top a { text-decoration: none; }
.top .name { font-family: var(--serif); font-weight: 500; font-size: 20px; letter-spacing: -.01em; }
.top nav { display: flex; gap: 22px; }
.top nav a { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
.top nav a[aria-current] { color: var(--ink); border-bottom: 1px solid var(--ink); }

/* hero */
.hero { padding: clamp(64px, 12vw, 150px) 0 clamp(40px, 6vw, 72px); border-bottom: 1px solid var(--line); }
.hero h1 {
  font-family: var(--serif); font-weight: 400; margin: 0 0 28px;
  font-size: clamp(38px, 6.2vw, 86px); line-height: 1.02; letter-spacing: -.02em; max-width: 14ch;
  font-variation-settings: "opsz" 144, "SOFT" 30, "WONK" 1;
}
.hero h1 em { font-style: italic; font-weight: 300; color: var(--accent); }
.hero .lede { max-width: 56ch; font-size: clamp(17px, 1.6vw, 21px); color: var(--ink-2); margin: 0; }
.hero .lede b { color: var(--ink); font-weight: 600; }
.hero .facts { display: flex; flex-wrap: wrap; gap: 10px 36px; margin: 40px 0 0; padding: 0; list-style: none; }
.hero .facts li { font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }
.hero .facts li b { color: var(--ink); font-weight: 500; }

/* section heads */
.sec { padding: clamp(48px, 7vw, 96px) 0 0; }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: clamp(24px, 4vw, 48px); }
.sec-head h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(26px, 3vw, 38px); letter-spacing: -.015em; margin: 0; }

/* work list */
.work { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(24px, 4vw, 64px); align-items: start; padding: clamp(32px, 5vw, 64px) 0; border-top: 1px solid var(--line); }
.work:first-of-type { border-top: 0; padding-top: 0; }
.work-meta { position: sticky; top: 32px; }
.work-meta .num { font-family: var(--serif); font-weight: 300; font-size: 14px; color: var(--ink-3); letter-spacing: .1em; }
.work-meta h3 { font-family: var(--serif); font-weight: 500; font-size: clamp(34px, 4.6vw, 60px); line-height: 1; letter-spacing: -.02em; margin: 10px 0 18px; }
.work-meta h3 a { text-decoration: none; }
.work-meta h3 a:hover { color: var(--accent); }
.work-meta .dek { font-size: clamp(17px, 1.45vw, 20px); color: var(--ink-2); margin: 0 0 26px; max-width: 42ch; }
.work-meta dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 20px; margin: 0 0 28px; font-size: 14px; }
.work-meta dt { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); padding-top: 3px; }
.work-meta dd { margin: 0; color: var(--ink); }
.work-meta .more { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.work-media { position: relative; padding-bottom: 7%; }
.work-media .browser { width: 100%; }
.work-media .phone { position: absolute; right: -2%; bottom: -8%; width: 24%; min-width: 120px; }
.work-media.phones { padding-bottom: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: end; }
.work-media.phones .phone { position: static; width: 100%; }
.work-media.phones .phone:nth-child(2) { transform: translateY(-24px); }
.work-media.single { padding-bottom: 0; }
.work-media.single .browser { width: 100%; }

/* device frames */
.frame { display: block; position: relative; background: var(--frame); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); }
.frame img { width: 100%; height: auto; }
.browser { padding-top: 26px; }
.browser::before { content: ""; position: absolute; top: 9px; left: 12px; width: 8px; height: 8px; border-radius: 50%; background: #5a5650; box-shadow: 14px 0 0 #5a5650, 28px 0 0 #5a5650; }
.browser img { border-radius: 2px 2px 0 0; }
.phone { border-radius: 11% / 5.2%; padding: 2.4%; background: var(--frame); aspect-ratio: 1206 / 2622; }
.phone img { border-radius: 9% / 4.3%; aspect-ratio: 1206 / 2622; object-fit: cover; }
.frame.plain { padding: 0; background: transparent; box-shadow: none; }

/* notes / about */
.notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 4vw, 56px); }
.notes h3 { font-family: var(--serif); font-weight: 500; font-size: 22px; margin: 0 0 10px; letter-spacing: -.01em; }
.notes p { margin: 0; color: var(--ink-2); font-size: 16px; }
.about { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(24px, 4vw, 64px); }
.about .bio { font-size: clamp(18px, 1.7vw, 22px); line-height: 1.5; }
.about .bio p { margin: 0 0 1em; }
.timeline { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.timeline li { display: grid; grid-template-columns: 120px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.timeline .when { font-family: var(--mono); font-size: 12px; letter-spacing: .04em; color: var(--ink-3); padding-top: 3px; }
.timeline .what b { font-weight: 600; }
.timeline .what span { color: var(--ink-2); }
.tools { margin: 28px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 24px; font-size: 15px; color: var(--ink-2); }
.tools li b { color: var(--ink); font-weight: 500; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; display: block; margin-bottom: 2px; }

/* contact + footer */
.contact { padding: clamp(56px, 8vw, 110px) 0; border-top: 1px solid var(--line); margin-top: clamp(48px, 7vw, 96px); }
.contact h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(30px, 4.6vw, 64px); letter-spacing: -.02em; margin: 0 0 18px; max-width: 18ch; line-height: 1.05; }
.contact p { color: var(--ink-2); margin: 0 0 24px; max-width: 48ch; }
.contact .links { display: flex; flex-wrap: wrap; gap: 14px 28px; font-size: 18px; }
.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 24px 0 40px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 13px; }
.foot a { color: var(--ink-2); text-decoration: none; }
.foot a:hover { color: var(--accent); }

/* case study */
.case-head { padding: clamp(40px, 7vw, 96px) 0 clamp(28px, 4vw, 48px); }
.case-head .kicker { display: flex; gap: 18px; align-items: center; margin-bottom: 22px; }
.case-head .kicker img { width: 40px; height: 40px; border-radius: 10px; }
.case-head h1 { font-family: var(--serif); font-weight: 500; font-size: clamp(44px, 8vw, 112px); line-height: .95; letter-spacing: -.025em; margin: 0 0 22px; }
.case-head .dek { font-size: clamp(19px, 2vw, 26px); line-height: 1.35; max-width: 34ch; color: var(--ink-2); margin: 0 0 28px; font-family: var(--serif); font-weight: 300; }
.case-head .actions { display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 15px; }
.case-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 22px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 0 0 clamp(32px, 5vw, 64px); }
.case-meta div { font-size: 15px; }
.case-meta b { display: block; font-family: var(--mono); font-weight: 500; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
.hero-media { margin: 0 0 clamp(40px, 7vw, 96px); }
.hero-media .browser { width: 100%; }
.hero-media.with-phone { position: relative; padding-bottom: 6%; }
.hero-media.with-phone .phone { position: absolute; right: 2%; bottom: 0; width: 20%; min-width: 120px; }
.prose { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(20px, 4vw, 64px); padding: clamp(28px, 4vw, 48px) 0; border-top: 1px solid var(--line); }
.prose h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(24px, 2.6vw, 34px); letter-spacing: -.015em; margin: 0; line-height: 1.15; }
.prose h2 small { display: block; font-family: var(--mono); font-weight: 400; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 10px; }
.prose .body { font-size: clamp(17px, 1.4vw, 19px); max-width: 62ch; }
.prose .body p { margin: 0 0 1em; }
.prose .body p:last-child { margin-bottom: 0; }
.prose .body ul { padding-left: 1.1em; margin: 0 0 1em; }
.prose .body li { margin: 0 0 .4em; }
.prose .body li b { font-weight: 600; }
.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(16px, 2.5vw, 32px); margin: 0 0 clamp(32px, 5vw, 64px); }
.gallery figure { margin: 0; }
.gallery figcaption, .figcap { font-family: var(--mono); font-size: 12px; letter-spacing: .04em; color: var(--ink-3); margin-top: 10px; }
.gallery .wide { grid-column: 1 / -1; }
.gallery button, .phones-row button { all: unset; cursor: zoom-in; display: block; width: 100%; }
.gallery button:focus-visible, .phones-row button:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 12px; }
.phones-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: clamp(14px, 2vw, 28px); margin: 0 0 clamp(32px, 5vw, 64px); }
.phones-row figure { margin: 0; }
.phones-row.four { grid-template-columns: repeat(4, 1fr); }
.swatches { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 18px 0 0; }
.swatch-set { border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.swatch-set h4 { margin: 0 0 4px; font-size: 15px; }
.swatch-set p { margin: 0 0 14px; color: var(--ink-3); font-size: 13px; }
.swatch-set .row { display: flex; gap: 10px; }
.swatch-set .row span { flex: 1; height: 56px; border-radius: 8px; border: 1px solid rgba(0,0,0,.08); position: relative; }
.swatch-set .row span i { position: absolute; left: 0; bottom: -20px; font-style: normal; font-family: var(--mono); font-size: 10px; color: var(--ink-3); letter-spacing: .04em; }
.swatch-set .row { margin-bottom: 22px; }
.logo-tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 18px 0 0; }
.logo-tiles div { display: grid; place-items: center; aspect-ratio: 16/9; border-radius: 12px; border: 1px solid var(--line); }
.logo-tiles img { width: 46%; }
.logo-tiles .light { background: #fff; }
.logo-tiles .dark { background: #010517; }
.icons { display: flex; gap: 22px; margin-top: 22px; align-items: center; }
.icons img { width: 72px; height: 72px; border-radius: 18px; box-shadow: 0 10px 24px -14px rgba(0,0,0,.5); }
.icons span { font-size: 13px; color: var(--ink-2); display: block; margin-top: 8px; text-align: center; }
.chips { display: flex; flex-wrap: wrap; gap: 6px 0; margin: 10px 0 0; padding: 0; list-style: none; font-size: 15px; color: var(--ink-2); }
.chips li::after { content: "·"; margin: 0 10px; color: var(--ink-3); }
.chips li:last-child::after { content: ""; margin: 0; }
.next { padding: clamp(40px, 6vw, 80px) 0; border-top: 1px solid var(--line); margin-top: clamp(32px, 5vw, 64px); }
.next .mono { margin-bottom: 10px; display: block; }
.next a { font-family: var(--serif); font-weight: 500; font-size: clamp(32px, 5vw, 64px); letter-spacing: -.02em; text-decoration: none; }
.next a:hover { color: var(--accent); }

/* lightbox */
dialog.lb { border: 0; padding: 0; background: transparent; max-width: min(96vw, 1800px); width: auto; }
dialog.lb::backdrop { background: rgba(10,9,8,.86); }
dialog.lb img { max-height: 92vh; width: auto; max-width: 96vw; border-radius: 8px; }
dialog.lb button { position: fixed; top: 16px; right: 16px; background: var(--bg); color: var(--ink); border: 0; border-radius: 999px; width: 40px; height: 40px; font-size: 18px; cursor: pointer; }

/* small screens */
@media (max-width: 900px) {
  .work, .about, .prose { grid-template-columns: 1fr; }
  .work-meta { position: static; }
  .work-media .phone { right: 0; bottom: 0; width: 27%; }
  .work-media { padding-bottom: 10%; }
  .notes { grid-template-columns: 1fr; }
  .case-meta { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .swatches, .logo-tiles { grid-template-columns: 1fr; }
  .tools { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .top { flex-direction: column; gap: 10px; }
  .top nav { gap: 16px; }
  .work-media.phones { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .work-media.phones .phone:nth-child(2) { transform: none; }
  .phones-row { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; margin-left: calc(-1 * var(--gutter)); margin-right: calc(-1 * var(--gutter)); padding-left: var(--gutter); padding-right: var(--gutter); }
  .phones-row figure { flex: 0 0 64%; scroll-snap-align: start; }
  .case-meta { grid-template-columns: 1fr; }
  .timeline li { grid-template-columns: 1fr; gap: 4px; }
  .hero-media.with-phone .phone { width: 28%; }
}
@media (prefers-reduced-motion: no-preference) {
  .frame { transition: transform .5s cubic-bezier(.2,.7,.2,1); }
  .work-media:hover .browser { transform: translateY(-4px); }
}

/* scroll reveal: a quiet slide-up, once, only when motion is allowed */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); }
  .js .reveal.in { opacity: 1; transform: none; }
  .js .reveal.in .frame { transition-delay: .08s; }
}
/* ink trail canvas (WebGL fluid), sits behind content */
#ink { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: -1; }