/* Ekin Düven — "Boğaz gecesi" paleti */
:root {
  --ink: #0C1B2E;      /* zemin: gece mavisi */
  --tide: #13294A;     /* yüzey */
  --foam: #E8EEF5;     /* metin */
  --mist: #8FA4BF;     /* ikincil metin */
  --simit: #F0B23A;    /* vurgu: susam altını */
  --flag: #E8434B;     /* nadir: imleç, uyarı */
  --line: rgba(143, 164, 191, .22);
  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --body: "Instrument Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --gutter: clamp(16px, 5vw, 72px);
  --maxw: 1180px;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --ink: #EEF2F7;
  --tide: #DCE4EE;
  --foam: #0C1B2E;
  --mist: #4A5D77;
  --simit: #9A6400;
  --flag: #C42B33;
  --line: rgba(12, 27, 46, .16);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--foam);
  font: 400 1.0625rem/1.6 var(--body);
  overflow-x: hidden;
  transition: background-color .4s, color .4s;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--display); margin: 0; font-weight: 700; line-height: 1.05; letter-spacing: -.02em; }
:focus-visible { outline: 2px solid var(--simit); outline-offset: 3px; border-radius: 4px; }
kbd { font: 500 .75em var(--mono); padding: .1em .4em; border: 1px solid var(--line); border-radius: 4px; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--simit); color: #0C1B2E; padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }

/* Üst çubuk */
.bar {
  position: fixed; inset: 0 0 auto; z-index: 20;
  display: flex; align-items: center; gap: 24px;
  padding: 14px var(--gutter);
  background: color-mix(in srgb, var(--ink) 72%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.mark { font: 800 1.35rem var(--display); text-decoration: none; letter-spacing: -.03em; }
.mark span { color: var(--simit); }
.bar nav { display: flex; gap: 22px; margin-left: auto; }
.bar nav a { text-decoration: none; color: var(--mist); font-weight: 500; font-size: .95rem; }
.bar nav a:hover, .bar nav a.on { color: var(--foam); }
.bar-tools { display: flex; gap: 10px; align-items: center; }
.icon-btn, .term-open {
  background: none; border: 1px solid var(--line); color: var(--foam);
  height: 38px; border-radius: 10px; cursor: pointer;
}
.icon-btn { width: 38px; display: grid; place-items: center; }
.icon-btn svg { width: 18px; fill: currentColor; }
.term-open { display: flex; align-items: center; gap: 8px; padding: 0 10px; font: 500 .9rem var(--mono); }
.term-open:hover, .icon-btn:hover { border-color: var(--simit); }

/* Giriş */
.hero {
  position: relative; min-height: 100svh;
  display: grid; align-items: end;
  padding: 120px var(--gutter) 96px;
  overflow: hidden;
}
#scene { position: absolute; inset: 0; width: 100%; height: 100%; cursor: crosshair; }
.hero-copy { position: relative; max-width: 620px; pointer-events: none; }
.hero-copy .cta { pointer-events: auto; }
.hello { margin: 0 0 8px; color: var(--mist); font-size: 1.1rem; }
.name {
  font-size: clamp(4rem, 13vw, 10.5rem);
  font-weight: 800; line-height: .86; letter-spacing: -.045em;
  font-variation-settings: "wdth" 80;
  transition: font-variation-settings .6s;
}
.name:hover { font-variation-settings: "wdth" 100; }
.lede { font-size: clamp(1.1rem, 1.6vw, 1.3rem); max-width: 34ch; margin: 24px 0 32px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; min-height: 48px; padding: 0 22px;
  border-radius: 999px; font: 600 1rem var(--body); text-decoration: none; cursor: pointer;
  transition: transform .2s, background-color .2s;
}
.btn:active { transform: scale(.97); }
.btn-main { background: var(--simit); color: #0C1B2E; border: 0; }
.btn-main:hover { background: color-mix(in srgb, var(--simit) 85%, white); }
.btn-ghost { background: transparent; color: var(--foam); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--foam); }

.shape-switch {
  position: absolute; right: var(--gutter); bottom: 96px;
  display: flex; gap: 4px; padding: 4px;
  border: 1px solid var(--line); border-radius: 999px;
  background: color-mix(in srgb, var(--ink) 60%, transparent);
}
.shape-switch button {
  background: none; border: 0; color: var(--mist); cursor: pointer;
  font: 500 .9rem var(--body); padding: 6px 14px; border-radius: 999px;
}
.shape-switch button[aria-pressed="true"] { background: var(--foam); color: var(--ink); }
.hint { position: absolute; right: var(--gutter); bottom: 60px; margin: 0; font-size: .85rem; color: var(--mist); }

/* Bölümler */
section:not(.hero) {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(80px, 12vw, 160px) var(--gutter) 0;
}
section h2 { font-size: clamp(2.6rem, 6vw, 4.5rem); margin-bottom: 16px; }
.section-lede { color: var(--mist); max-width: 52ch; margin: 0 0 48px; font-size: 1.15rem; }

.about { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(32px, 6vw, 88px); align-items: center; }
.portrait { margin: 0; border-radius: 28px; overflow: hidden; transform-style: preserve-3d; will-change: transform; }
.portrait img { aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.about-text p { max-width: 58ch; }
.facts { margin: 36px 0 0; border-top: 1px solid var(--line); }
.facts div { display: grid; grid-template-columns: 110px 1fr; padding: 14px 0; border-bottom: 1px solid var(--line); }
.facts dt { color: var(--mist); }
.facts dd { margin: 0; font-weight: 500; }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: #3DDC84; margin-right: 8px; box-shadow: 0 0 0 0 #3DDC8488; animation: ping 2s infinite; }
@keyframes ping { 70% { box-shadow: 0 0 0 10px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }

/* Projeler: farklı ölçekte, sırayla sağa-sola */
.project-list { list-style: none; margin: 0; padding: 0; display: grid; gap: clamp(56px, 8vw, 112px); }
.project { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.project:nth-child(even) .project-art { order: 2; }
.project-art {
  display: grid; place-items: center; aspect-ratio: 16 / 10;
  background:
    radial-gradient(120% 90% at 30% 20%, color-mix(in srgb, var(--brand) 35%, transparent), transparent 60%),
    #101418;
  border-radius: 24px; overflow: hidden; padding: 10%;
  transform-style: preserve-3d; will-change: transform;
  border: 1px solid var(--line);
}
.project-art.light { background: radial-gradient(120% 90% at 30% 20%, color-mix(in srgb, var(--brand) 30%, white), #F7F4EE 70%); }
.project-art img { max-height: 100%; width: auto; object-fit: contain; transform: translateZ(40px); transition: transform .4s; }
.project-art:hover img { transform: translateZ(40px) scale(1.04); }
.project h3 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 12px; }
.project p { color: var(--mist); margin: 0 0 18px; max-width: 44ch; }
.tags { list-style: none; padding: 0; margin: 0 0 22px; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { border: 1px solid var(--line); border-radius: 999px; padding: 3px 12px; font-size: .88rem; }
.link { font-weight: 600; text-decoration-color: var(--simit); text-underline-offset: 5px; text-decoration-thickness: 2px; }
.link:hover { color: var(--simit); }

/* Yetenekler */
.skill-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.skill-col { padding: 28px 24px 8px 0; }
.skill-col + .skill-col { padding-left: 24px; border-left: 1px solid var(--line); }
.skill-col h3 { font-size: 1.35rem; margin-bottom: 14px; }
.skill-col ul { list-style: none; padding: 0; margin: 0; color: var(--mist); }
.skill-col li { padding: 5px 0; }

/* İletişim */
.contact { padding-bottom: 40px; }
.contact h2 { font-size: clamp(3rem, 9vw, 7rem); }
.mail-row { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; margin-bottom: 32px; }
.mail {
  font: 700 clamp(1.4rem, 4.2vw, 3rem) var(--display); letter-spacing: -.02em;
  text-decoration: underline; text-decoration-color: var(--simit); text-underline-offset: 8px; text-decoration-thickness: 3px;
  overflow-wrap: anywhere;
}
.social { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 28px; }
.social a { color: var(--mist); font-weight: 500; }
.social a:hover { color: var(--foam); }

.foot {
  max-width: var(--maxw); margin: 96px auto 0; padding: 28px var(--gutter) 40px;
  border-top: 1px solid var(--line); color: var(--mist); font-size: .92rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
}
.foot p { margin: 0; }
.foot code { font-family: var(--mono); color: var(--foam); }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 140%);
  background: var(--foam); color: var(--ink); padding: 10px 18px; border-radius: 999px;
  font-weight: 600; transition: transform .35s cubic-bezier(.2,.9,.3,1.2); z-index: 60;
}
.toast.show { transform: translate(-50%, 0); }

/* Terminal */
.term {
  width: min(760px, calc(100vw - 32px)); max-height: min(560px, 80vh);
  padding: 0; border: 1px solid var(--line); border-radius: 16px;
  background: #07111E; color: #D8E2EE;
  font: 400 .95rem/1.55 var(--mono);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55);
  overflow: hidden;
}
.term[open] { display: flex; flex-direction: column; animation: termIn .25s ease-out; }
@keyframes termIn { from { opacity: 0; transform: translateY(16px) scale(.98); } }
.term::backdrop { background: rgba(5, 12, 22, .55); backdrop-filter: blur(4px); }
.term-head { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid rgba(143,164,191,.18); }
.term-dots { display: flex; gap: 6px; }
.term-dots i { width: 11px; height: 11px; border-radius: 50%; background: #3A4B63; }
.term-dots i:first-child { background: var(--flag); }
.term-title { color: #8FA4BF; font-size: .85rem; }
.term-x { margin-left: auto; background: none; border: 1px solid rgba(143,164,191,.3); color: #8FA4BF; border-radius: 6px; font: inherit; font-size: .78rem; cursor: pointer; padding: 2px 8px; }
.term-out { padding: 14px 16px 0; overflow-y: auto; flex: 1; white-space: pre-wrap; overflow-wrap: anywhere; }
.term-out .c { color: #F0B23A; }
.term-out .m { color: #8FA4BF; }
.term-out .e { color: #FF7A80; }
.term-out a { color: #7CC4FF; }
.term-in { display: flex; gap: 10px; padding: 8px 16px 16px; }
.prompt { color: #3DDC84; }
.term-in input { flex: 1; background: none; border: 0; color: inherit; font: inherit; outline: none; caret-color: var(--flag); }

/* Mobil */
@media (max-width: 860px) {
  .bar nav { display: none; }
  .bar-tools { margin-left: auto; }
  .term-open kbd { display: none; }
  .hero { padding-bottom: 140px; }
  .shape-switch { left: var(--gutter); right: auto; bottom: 64px; }
  .hint { display: none; }
  .about, .project { grid-template-columns: 1fr; }
  .project:nth-child(even) .project-art { order: 0; }
  .portrait { max-width: 420px; }
  .skill-grid { grid-template-columns: 1fr 1fr; }
  .skill-col:nth-child(3) { padding-left: 0; border-left: 0; }
}
@media (max-width: 520px) {
  .skill-grid { grid-template-columns: 1fr; }
  .skill-col + .skill-col { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* Yazdırma: tek sayfalık sade CV */
.print-cv { display: none; }
@media print {
  @page { margin: 18mm; }
  body > *:not(.print-cv) { display: none !important; }
  body { background: #fff; color: #111; font: 11pt/1.5 var(--body); }
  .print-cv { display: block; }
  .print-cv h1 { font-size: 26pt; margin-bottom: 4pt; }
  .print-cv h2 { font-size: 13pt; margin: 16pt 0 6pt; border-bottom: 1px solid #ccc; padding-bottom: 3pt; }
  .print-cv ul { padding-left: 16pt; margin: 0; }
}