/* ============================================================
   Murat Karagözgil — portfolio
   Editorial-technical minimalism · warm paper · cobalt accent
   ============================================================ */

:root {
  --paper:      #F5F3EE;
  --paper-2:    #FBFAF6;
  --ink:        #16150F;
  --ink-soft:   #3B382F;
  --muted:      #6E6A5E;
  --faint:      #98937F;
  --line:       #E2DDD0;
  --line-soft:  #ECE8DD;
  --accent:     #2540DF;
  --accent-ink: #1B32B0;
  --accent-wash:#ECEEFB;
  --ok:         #1C7C4A;

  --serif: "Bricolage Grotesque", "Hanken Grotesk", -apple-system, sans-serif;
  --sans:  "Hanken Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --wrap: 1280px;
  --gutter: clamp(20px, 5vw, 56px);
  --radius: 16px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* subtle grain + faint radial glow behind hero */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(120% 60% at 82% -8%, rgba(37,64,223,.06), transparent 60%),
    radial-gradient(90% 50% at 5% 0%, rgba(28,124,74,.045), transparent 55%);
  pointer-events: none;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: .035;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }

::selection { background: var(--accent); color: #fff; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gutter); }

/* ---------- shared type ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent-ink);
  display: inline-flex;
  align-items: center;
  gap: .55em;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--accent);
  display: inline-block;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 500; letter-spacing: -.02em; line-height: 1.04; margin: 0; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(1.4) blur(12px);
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { font-family: var(--serif); font-size: 20px; letter-spacing: -.02em; display: flex; align-items: center; gap: 10px; }
.brand__mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--ink); color: var(--paper);
  display: grid; place-items: center;
  font-family: var(--mono); font-size: 13px; font-weight: 700; letter-spacing: 0;
}
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a {
  font-family: var(--mono); font-size: 13px; letter-spacing: .02em; color: var(--muted);
  position: relative; transition: color .2s;
}
.nav__links a:hover { color: var(--ink); }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -5px; height: 1px; width: 0;
  background: var(--accent); transition: width .25s ease;
}
.nav__links a:hover::after { width: 100%; }
.nav__cta {
  font-family: var(--mono); font-size: 13px; padding: 8px 16px; border-radius: 999px;
  background: var(--ink); color: var(--paper) !important; border: 1px solid var(--ink);
  transition: transform .2s, background .2s;
}
.nav__cta:hover { transform: translateY(-1px); background: var(--accent); border-color: var(--accent); }
.nav__cta::after { display: none; }
.nav__toggle { display: none; }

/* ---------- hero ---------- */
.hero { padding: clamp(64px, 12vh, 128px) 0 clamp(48px, 8vh, 96px); position: relative; }
.hero__grid { display: grid; grid-template-columns: 1.55fr .95fr; gap: clamp(32px, 6vw, 72px); align-items: end; }
.hero h1 {
  font-size: clamp(40px, 8.5vw, 104px);
  font-optical-sizing: auto;
  margin: 22px 0 0;
  overflow-wrap: break-word;
}
.hero h1 em { font-style: normal; font-weight: 600; color: var(--accent-ink); }
.hero__lead {
  font-size: clamp(18px, 2.2vw, 22px); color: var(--ink-soft); max-width: 40ch; margin: 28px 0 0;
  line-height: 1.5;
}
.hero__lead strong { font-weight: 600; color: var(--ink); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn {
  font-family: var(--mono); font-size: 13.5px; letter-spacing: .01em;
  padding: 13px 22px; border-radius: 999px; display: inline-flex; align-items: center; gap: 9px;
  border: 1px solid var(--ink); transition: transform .2s, background .2s, color .2s, border-color .2s;
}
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { transform: translateY(-2px); background: var(--accent); border-color: var(--accent); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn svg { width: 15px; height: 15px; }

/* hero side card — location + status */
.hero__aside {
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper-2);
  padding: 22px; font-family: var(--mono); font-size: 12.5px; color: var(--muted);
  box-shadow: 0 1px 0 rgba(0,0,0,.02);
}
.hero__aside dl { display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; margin: 0; }
.hero__aside dt { color: var(--faint); }
.hero__aside dd { margin: 0; color: var(--ink); text-align: right; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); display: inline-block; margin-right: 7px; box-shadow: 0 0 0 0 rgba(28,124,74,.5); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(28,124,74,.45);} 70%{ box-shadow: 0 0 0 7px rgba(28,124,74,0);} 100%{box-shadow:0 0 0 0 rgba(28,124,74,0);} }

/* stat strip */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); margin-top: clamp(48px, 8vh, 88px); }
.stat { padding: 26px 0 4px; }
.stat + .stat { border-left: 1px solid var(--line); padding-left: 26px; }
.stat__num { font-family: var(--serif); font-size: clamp(34px, 4.4vw, 50px); line-height: 1; letter-spacing: -.02em; }
.stat__num em { font-style: normal; color: var(--accent-ink); }
.stat__label { font-family: var(--mono); font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-top: 12px; }

/* ---------- section frame ---------- */
section { padding: clamp(64px, 11vh, 130px) 0; }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: clamp(36px, 6vh, 64px); flex-wrap: wrap; }
.sec-head h2 { font-size: clamp(32px, 5vw, 56px); }
.sec-head p { color: var(--muted); max-width: 42ch; margin: 0; font-size: 16px; }
.sec-index { font-family: var(--mono); font-size: 12px; color: var(--faint); letter-spacing: .1em; }

/* ---------- projects ---------- */
.projects { display: flex; flex-direction: column; gap: 22px; }
.project {
  display: grid; grid-template-columns: 240px 1fr; gap: clamp(24px, 4vw, 56px);
  padding: clamp(26px, 3.4vw, 40px);
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper-2);
  position: relative; overflow: hidden;
  transition: border-color .3s, transform .3s, box-shadow .3s;
}
.project:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); transform: translateY(-3px); box-shadow: 0 22px 50px -30px rgba(20,18,10,.35); }
.project__num {
  position: absolute; top: 20px; right: 26px;
  font-family: var(--mono); font-size: 12px; color: var(--faint); letter-spacing: .1em;
}
.project__side { display: flex; flex-direction: column; gap: 18px; }
.project__logo {
  width: 62px; height: 62px; border-radius: 15px; object-fit: cover;
  border: 1px solid var(--line-soft); background: #fff;
  box-shadow: 0 6px 18px -10px rgba(20,18,10,.4);
}
.project__name { font-family: var(--serif); font-size: clamp(26px, 3vw, 34px); line-height: 1.05; }
.project__domain {
  font-family: var(--mono); font-size: 13px; color: var(--accent-ink);
  display: inline-flex; align-items: center; gap: 7px; width: fit-content;
}
.project__domain svg { width: 13px; height: 13px; opacity: .7; }
.project__tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 2px; }
.tag {
  font-family: var(--mono); font-size: 11px; letter-spacing: .01em;
  padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line);
  color: var(--muted); background: var(--paper);
}
.project__body { display: flex; flex-direction: column; }
.project__tagline { font-family: var(--serif); font-weight: 500; font-size: clamp(18px, 2vw, 23px); color: var(--ink); margin: 0 0 14px; letter-spacing: -.015em; line-height: 1.2; }
.project__desc { color: var(--ink-soft); margin: 0 0 22px; font-size: 15.5px; max-width: 60ch; }
.project__uc-label { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); margin-bottom: 12px; }
.project__uc { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; margin: 0 0 24px; padding: 0; list-style: none; }
.project__uc li { position: relative; padding-left: 20px; font-size: 14.5px; color: var(--ink-soft); }
.project__uc li::before { content: "→"; position: absolute; left: 0; color: var(--accent); font-family: var(--mono); }
.project__foot { margin-top: auto; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.project__link {
  font-family: var(--mono); font-size: 13px; color: var(--ink);
  display: inline-flex; align-items: center; gap: 8px; padding-bottom: 3px;
  border-bottom: 1px solid var(--ink); transition: gap .2s, color .2s, border-color .2s;
}
.project__link:hover { gap: 13px; color: var(--accent-ink); border-color: var(--accent); }
.project__meta { font-family: var(--mono); font-size: 12px; color: var(--faint); }

/* ---------- capabilities ---------- */
.caps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.cap { background: var(--paper-2); padding: 30px 28px; transition: background .25s; }
.cap:hover { background: #fff; }
.cap__ic { font-family: var(--mono); font-size: 12px; color: var(--accent-ink); letter-spacing: .1em; margin-bottom: 16px; }
.cap h3 { font-size: 21px; margin-bottom: 10px; letter-spacing: -.01em; }
.cap p { color: var(--muted); font-size: 14.5px; margin: 0; }

/* ---------- stack ---------- */
.stack { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--line); }
.stack__row { display: grid; grid-template-columns: 200px 1fr; gap: 30px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.stack__row:nth-child(even) { }
.stack__cat { font-family: var(--serif); font-size: 20px; color: var(--ink); }
.stack__cat span { display: block; font-family: var(--mono); font-size: 11px; color: var(--faint); letter-spacing: .08em; text-transform: uppercase; margin-top: 6px; }
.stack__items { display: flex; flex-wrap: wrap; gap: 8px; align-content: flex-start; }
.chip { font-family: var(--mono); font-size: 12.5px; padding: 6px 13px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink-soft); background: var(--paper-2); transition: border-color .2s, color .2s; }
.chip:hover { border-color: var(--accent); color: var(--accent-ink); }
.stack-wrap { display: block; }

/* ---------- experience ---------- */
.xp { display: flex; flex-direction: column; }
.xp__row {
  display: grid; grid-template-columns: 168px 1fr auto; gap: 28px; align-items: baseline;
  padding: 24px 0; border-top: 1px solid var(--line);
  transition: padding-left .25s;
}
.xp__row:last-child { border-bottom: 1px solid var(--line); }
.xp__row:hover { padding-left: 10px; }
.xp__when { font-family: var(--mono); font-size: 12.5px; color: var(--faint); letter-spacing: .02em; }
.xp__what h3 { font-size: 23px; display: inline; }
.xp__role { font-family: var(--mono); font-size: 12.5px; color: var(--accent-ink); margin-top: 6px; }
.xp__desc { color: var(--muted); font-size: 14.5px; margin: 8px 0 0; max-width: 60ch; }
.xp__place { font-family: var(--mono); font-size: 12px; color: var(--faint); text-align: right; white-space: nowrap; }

/* ---------- about ---------- */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
.about__lead { font-family: var(--serif); font-size: clamp(24px, 3.2vw, 36px); line-height: 1.28; letter-spacing: -.015em; }
.about__lead em { font-style: normal; font-weight: 600; color: var(--accent-ink); }
.about__body p { color: var(--ink-soft); margin: 0 0 18px; font-size: 16px; }
.about__body p:last-child { margin-bottom: 0; }
.about__certs { margin-top: 26px; display: flex; flex-direction: column; gap: 10px; }
.about__cert { font-family: var(--mono); font-size: 12.5px; color: var(--muted); display: flex; gap: 10px; align-items: baseline; }
.about__cert b { color: var(--ink); font-weight: 500; }

/* ---------- contact ---------- */
.contact { text-align: center; padding-bottom: clamp(48px, 8vh, 90px); }
.contact h2 { font-size: clamp(40px, 8vw, 92px); margin-bottom: 22px; }
.contact h2 em { font-style: normal; font-weight: 600; color: var(--accent-ink); }
.contact p { color: var(--muted); max-width: 46ch; margin: 0 auto 34px; font-size: 17px; }
.contact__links { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); padding: 34px 0; }
.foot__inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.foot__inner a { color: var(--muted); transition: color .2s; }
.foot__inner a:hover { color: var(--accent-ink); }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 940px) {
  .hero__grid { grid-template-columns: 1fr; align-items: start; }
  .hero__aside { max-width: 360px; }
  .about { grid-template-columns: 1fr; }
  .caps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .hero h1 { font-size: clamp(33px, 9vw, 60px); hyphens: auto; }
  .hero__grid > div, .project__body, .stack__items { min-width: 0; }
  .hero__lead { max-width: none; }
  .nav__links { display: none; }
  .nav__toggle {
    display: inline-grid; place-items: center; width: 40px; height: 40px;
    border: 1px solid var(--line); border-radius: 10px; background: var(--paper-2); cursor: pointer;
  }
  .nav__toggle span, .nav__toggle span::before, .nav__toggle span::after {
    content: ""; display: block; width: 17px; height: 1.5px; background: var(--ink); position: relative; transition: .25s;
  }
  .nav__toggle span::before { position: absolute; top: -5px; }
  .nav__toggle span::after { position: absolute; top: 5px; }
  .nav.open .nav__toggle span { background: transparent; }
  .nav.open .nav__toggle span::before { top: 0; transform: rotate(45deg); }
  .nav.open .nav__toggle span::after { top: 0; transform: rotate(-45deg); }
  .nav.open .nav__links {
    display: flex; flex-direction: column; position: absolute; top: 66px; left: 0; right: 0;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 18px var(--gutter) 26px; gap: 18px;
  }
  .nav.open .nav__links a { font-size: 15px; }

  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { border-left: none; padding-left: 0; }
  .stat + .stat { }
  .stat:nth-child(2), .stat:nth-child(4) { border-left: 1px solid var(--line); padding-left: 24px; }
  .stat:nth-child(3), .stat:nth-child(4) { border-top: 1px solid var(--line); }

  .project { grid-template-columns: 1fr; gap: 24px; }
  .project__side { flex-direction: row; align-items: center; flex-wrap: wrap; gap: 14px; }
  .project__logo { width: 52px; height: 52px; }
  .project__num { position: static; order: -1; }
  .project__uc { grid-template-columns: 1fr; }

  .caps { grid-template-columns: 1fr; }
  .stack__row { grid-template-columns: 1fr; gap: 14px; }
  .xp__row { grid-template-columns: 1fr; gap: 6px; }
  .xp__place { text-align: left; }
  .contact__links { flex-direction: column; align-items: stretch; }
}