/* ============================================================
   Op. Dr. Abdulkadir Oduncu — kişisel hekim sitesi
   Tasarım sistemi / shared stylesheet
   Tema: "red reflex" — pupilden yansıyan sıcak ışıltı
   ============================================================ */

:root {
  /* Renk paleti */
  --ink:        #131C24;  /* derin lacivert-antrasit (göz içi) */
  --ink-2:      #1B2932;
  --slate:      #38525C;  /* ikincil teal-slate */
  --reflex:     #E1854A;  /* red reflex amberi — imza aksanı */
  --reflex-deep:#C25738;  /* ışıltının çekirdeği */
  --reflex-soft:#F2B27C;  /* açık ışıltı */
  --paper:      #F5F7F7;  /* serin, klinik açık zemin */
  --surface:    #FFFFFF;
  --line:       #E2E8E8;
  --muted:      #5E6F76;
  --text:       #1B262C;

  /* Tipografi */
  --font-display: "Newsreader", Georgia, "Times New Roman", serif;
  --font-body:    "Inter", system-ui, -apple-system, sans-serif;
  --font-mono:    "IBM Plex Mono", ui-monospace, monospace;

  /* Ölçek */
  --maxw: 1120px;
  --gut: clamp(1.25rem, 4vw, 3rem);
  --radius: 14px;
}

/* --- Reset / temel --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--paper);
  line-height: 1.65;
  font-size: 1.02rem;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

/* Tipografi rolleri */
h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.12; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: clamp(2.3rem, 5.5vw, 3.7rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
h3 { font-size: clamp(1.18rem, 2vw, 1.4rem); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--reflex-deep);
  margin: 0 0 .9rem;
}
.eyebrow.on-dark { color: var(--reflex-soft); }

.container { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gut); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245,247,247,.82);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background .3s ease;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav__inner {
  max-width: var(--maxw); margin: 0 auto; padding: .85rem var(--gut);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; color: var(--ink); }
.brand__mark { width: 38px; height: 38px; flex: 0 0 auto; }
.brand__name { font-family: var(--font-display); font-size: 1.06rem; font-weight: 600; line-height: 1.05; }
.brand__name span { display: block; font-family: var(--font-mono); font-size: .58rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); font-weight: 400; margin-top: 2px; }

.nav__links { display: flex; align-items: center; gap: 1.6rem; list-style: none; margin: 0; padding: 0; }
.nav__links a {
  text-decoration: none; color: var(--text); font-size: .94rem; font-weight: 500;
  padding: .3rem 0; position: relative;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
  background: var(--reflex); transform: scaleX(0); transform-origin: left; transition: transform .25s ease;
}
.nav__links a:hover::after, .nav__links a[aria-current="page"]::after { transform: scaleX(1); }
.nav__links a[aria-current="page"] { color: var(--ink); }

.btn {
  display: inline-flex; align-items: center; gap: .5rem; justify-content: center;
  font-family: var(--font-body); font-weight: 600; font-size: .94rem;
  padding: .7rem 1.25rem; border-radius: 999px; text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn--primary { background: var(--reflex); color: #fff; box-shadow: 0 8px 22px -10px rgba(194,87,56,.7); }
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 12px 26px -10px rgba(194,87,56,.85); }
.btn--ghost { border-color: rgba(27,38,44,.22); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--ink); }
.btn--light { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.28); }
.btn--light:hover { background: rgba(255,255,255,.18); }
.btn--sm { padding: .55rem 1rem; font-size: .88rem; }

.nav__toggle { display: none; background: none; border: 0; cursor: pointer; padding: .4rem; color: var(--ink); }
.nav__toggle svg { width: 26px; height: 26px; }

@media (max-width: 820px) {
  .nav__toggle { display: inline-flex; }
  .nav__links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: .5rem var(--gut) 1.2rem;
    max-height: 0; overflow: hidden; transition: max-height .3s ease;
  }
  .nav__links.open { max-height: 420px; }
  .nav__links li { width: 100%; }
  .nav__links a { display: block; width: 100%; padding: .8rem 0; border-bottom: 1px solid var(--line); }
  .nav__links a::after { display: none; }
  .nav__links .btn { margin-top: .8rem; width: 100%; }
}

/* ============================================================
   HERO  — red reflex
   ============================================================ */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(120% 120% at 78% 30%, var(--ink-2) 0%, var(--ink) 60%);
  color: var(--paper);
}
.hero__inner {
  max-width: var(--maxw); margin: 0 auto; padding: clamp(4rem,9vw,7rem) var(--gut) clamp(4.5rem,10vw,7.5rem);
  position: relative; z-index: 2; max-width: min(var(--maxw), 100%);
}
.hero__content { max-width: 38rem; }
.hero h1 { color: #fff; margin-bottom: 1.1rem; }
.hero p.lead { font-size: clamp(1.05rem, 1.7vw, 1.25rem); color: rgba(245,247,247,.82); margin: 0 0 2rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: .8rem; }

/* red-reflex ışıltı objesi */
.reflex-orb {
  position: absolute; z-index: 1; pointer-events: none;
  width: clamp(360px, 46vw, 620px); aspect-ratio: 1;
  top: 50%; right: -8%; transform: translateY(-50%);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%,
      var(--reflex-soft) 0%,
      var(--reflex) 16%,
      var(--reflex-deep) 34%,
      rgba(120,40,28,.45) 52%,
      rgba(19,28,36,0) 72%);
  filter: blur(2px);
  animation: reflexPulse 7s ease-in-out infinite;
}
.reflex-orb::after { /* iris/optik halkalar */
  content: ""; position: absolute; inset: 8%;
  border-radius: 50%;
  background: repeating-radial-gradient(circle at 50% 50%,
     rgba(255,255,255,.05) 0 1px, rgba(255,255,255,0) 1px 14px);
  mix-blend-mode: screen; opacity: .5;
}
@keyframes reflexPulse {
  0%,100% { transform: translateY(-50%) scale(1); opacity: .95; }
  50%     { transform: translateY(-50%) scale(1.04); opacity: 1; }
}
@media (max-width: 820px) {
  .reflex-orb { top: -12%; right: -28%; transform: none; opacity: .85; animation: none; }
}

/* ============================================================
   SECTIONS / genel
   ============================================================ */
.section { padding-block: clamp(3.5rem, 8vw, 6rem); }
.section--tight { padding-block: clamp(2.5rem, 5vw, 3.5rem); }
.section__head { max-width: 42rem; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section__head p { color: var(--muted); margin: .9rem 0 0; }

.page-head {
  background: radial-gradient(120% 140% at 85% 0%, var(--ink-2) 0%, var(--ink) 65%);
  color: var(--paper); padding-block: clamp(3rem, 7vw, 5rem);
}
.page-head h1 { color: #fff; }
.page-head p { color: rgba(245,247,247,.8); max-width: 40rem; margin: 1rem 0 0; }

/* Tanıtım iki sütun */
.intro-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.intro-grid p { color: var(--muted); }
.intro-grid .lead-text { color: var(--text); font-size: 1.12rem; }
.portrait {
  aspect-ratio: 4/5; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(160deg, var(--ink-2), var(--slate));
  display: grid; place-items: center; color: rgba(255,255,255,.55);
  font-family: var(--font-mono); font-size: .8rem; text-align: center; padding: 1rem;
  position: relative;
}
.portrait::before {
  content: ""; position: absolute; width: 55%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, var(--reflex) 0%, var(--reflex-deep) 38%, transparent 70%);
  opacity: .5; filter: blur(6px);
}
.portrait span { position: relative; z-index: 1; }
@media (max-width: 760px) { .intro-grid { grid-template-columns: 1fr; } .portrait { max-width: 340px; } }

/* Tedavi kartları */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
@media (max-width: 860px) { .cards { grid-template-columns: 1fr; } }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem 1.5rem; text-decoration: none; color: inherit;
  display: flex; flex-direction: column; gap: .7rem;
  transition: transform .18s ease, box-shadow .25s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -24px rgba(19,28,36,.4); border-color: #d3dcdc; }
.card__num { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; color: var(--reflex-deep); }
.card h3 { margin-bottom: .1rem; }
.card p { color: var(--muted); font-size: .96rem; margin: 0; flex: 1; }
.card__more { font-weight: 600; font-size: .9rem; color: var(--ink); display: inline-flex; gap: .35rem; align-items: center; }
.card:hover .card__more { color: var(--reflex-deep); }

/* Bilim / inovasyon şeridi */
.science {
  background: radial-gradient(110% 130% at 12% 20%, var(--ink-2) 0%, var(--ink) 70%);
  color: var(--paper); border-radius: 0;
}
.science .container { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(2rem,5vw,4rem); align-items: center; }
.science h2 { color: #fff; }
.science p { color: rgba(245,247,247,.78); }
.metric-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .9rem; }
.metric-list li { display: flex; gap: .9rem; align-items: baseline; padding-bottom: .9rem; border-bottom: 1px solid rgba(255,255,255,.12); }
.metric-list .tag { font-family: var(--font-mono); font-size: .72rem; color: var(--reflex-soft); white-space: nowrap; letter-spacing: .04em; }
.metric-list .desc { color: rgba(245,247,247,.86); font-size: .95rem; }
@media (max-width: 760px) { .science .container { grid-template-columns: 1fr; } }

/* İçerik bloğu (tedavi / hastalık metinleri) */
.prose { max-width: 46rem; }
.prose + .prose { margin-top: clamp(3rem, 6vw, 4.5rem); }
.prose h2 { scroll-margin-top: 90px; }
.prose h3 { margin-top: 2rem; margin-bottom: .4rem; }
.prose p { color: var(--text); margin: .8rem 0; }
.prose ul { color: var(--text); padding-left: 1.1rem; }
.prose li { margin: .4rem 0; }
.prose .note {
  background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--reflex);
  border-radius: 10px; padding: 1rem 1.2rem; color: var(--muted); font-size: .92rem; margin-top: 1.2rem;
}
.anchor-nav { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2.5rem; }
.anchor-nav a {
  font-size: .88rem; text-decoration: none; padding: .45rem .9rem; border-radius: 999px;
  border: 1px solid var(--line); color: var(--ink); background: var(--surface); font-weight: 500;
}
.anchor-nav a:hover { border-color: var(--reflex); color: var(--reflex-deep); }

/* Patent / liste satırları */
.list-rows { display: grid; gap: 0; margin-top: 1.5rem; border-top: 1px solid var(--line); }
.list-row { display: grid; grid-template-columns: auto 1fr auto; gap: 1.1rem; padding: 1.15rem 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.list-row .yr { font-family: var(--font-mono); font-size: .82rem; color: var(--reflex-deep); }
.list-row .ttl { font-weight: 500; }
.list-row .ttl small { display: block; color: var(--muted); font-weight: 400; font-size: .9rem; margin-top: .15rem; }
.list-row a.ext { font-size: .85rem; font-weight: 600; text-decoration: none; color: var(--ink); white-space: nowrap; }
.list-row a.ext:hover { color: var(--reflex-deep); }
@media (max-width: 640px) { .list-row { grid-template-columns: auto 1fr; } .list-row a.ext { grid-column: 2; } }

.badge-grid { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.4rem; }
.badge { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .03em; color: var(--slate);
  border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: .45rem .9rem; }

/* Galeri placeholder */
.gallery { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; margin-top: 1.6rem; }
@media (max-width: 760px){ .gallery { grid-template-columns: 1fr 1fr; } }
.shot {
  aspect-ratio: 3/2; border-radius: 12px; border: 1px dashed #c6d0d0; background: #eef2f2;
  display: grid; place-items: center; text-align: center; color: var(--muted);
  font-family: var(--font-mono); font-size: .72rem; padding: .8rem;
}

/* İletişim */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2rem,4vw,3rem); align-items: start; }
@media (max-width: 820px){ .contact-grid { grid-template-columns: 1fr; } }
.info-row { display: flex; gap: .9rem; padding: 1rem 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.info-row svg { width: 20px; height: 20px; color: var(--reflex-deep); flex: 0 0 auto; margin-top: 3px; }
.info-row strong { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 600; }
.info-row a, .info-row span { color: var(--text); text-decoration: none; }
.info-row a:hover { color: var(--reflex-deep); }
.map-frame { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; min-height: 320px; }
.map-frame iframe { width: 100%; height: 100%; min-height: 320px; border: 0; display: block; }

/* CTA bandı */
.cta-band { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.6rem,4vw,2.4rem); display: flex; flex-wrap: wrap; gap: 1.2rem; align-items: center; justify-content: space-between; }
.cta-band h3 { font-size: 1.35rem; }
.cta-band p { color: var(--muted); margin: .3rem 0 0; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: var(--ink); color: rgba(245,247,247,.72); padding-block: clamp(2.6rem,5vw,3.5rem); margin-top: 0; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
@media (max-width: 760px){ .footer__top { grid-template-columns: 1fr; gap: 1.6rem; } }
.footer h4 { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--reflex-soft); margin: 0 0 .9rem; font-weight: 500; }
.footer a { color: rgba(245,247,247,.8); text-decoration: none; }
.footer a:hover { color: #fff; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; font-size: .92rem; }
.footer__brand .brand__name { color: #fff; }
.footer__brand p { color: rgba(245,247,247,.6); font-size: .9rem; max-width: 22rem; }
.footer__bottom { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; flex-wrap: wrap; gap: .8rem 1.5rem; justify-content: space-between; font-size: .82rem; color: rgba(245,247,247,.55); }
.disclaimer { font-size: .82rem; color: rgba(245,247,247,.55); max-width: 60rem; margin-top: 1rem; line-height: 1.6; }

/* Erişilebilirlik */
:focus-visible { outline: 3px solid var(--reflex); outline-offset: 2px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--reflex); color: #fff; padding: .6rem 1rem; z-index: 100; }
.skip:focus { left: .5rem; top: .5rem; }

/* --- Portre fotoğraf (eklendi) --- */
.portrait:has(img) { padding: 0; }
.portrait img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 22%; display: block; position: relative; z-index: 1; }

/* --- Öne çıkan etkinlik fotoğrafı (eklendi) --- */
.photo-feature { display: grid; grid-template-columns: minmax(0, 340px) 1fr; gap: 1.6rem; align-items: center; margin-top: 1.6rem; }
.photo-feature img { width: 100%; border-radius: 12px; border: 1px solid var(--line); display: block; }
.photo-feature figcaption { color: var(--muted); font-size: .94rem; margin: 0; }
.photo-feature figcaption strong { color: var(--text); display: block; margin-bottom: .25rem; font-weight: 600; }
@media (max-width: 640px) { .photo-feature { grid-template-columns: 1fr; } .photo-feature img { max-width: 340px; } }

/* Yaklaşan etkinlik vurgusu */
.list-row.upcoming .yr { color: var(--reflex); }
.upcoming-tag { font-family: var(--font-mono); font-size: .64rem; letter-spacing: .1em; text-transform: uppercase; color: #fff; background: var(--reflex); border-radius: 999px; padding: .15rem .5rem; margin-left: .5rem; vertical-align: middle; }