/* ================= Renkler ================= */
:root {
  --bg: #E4E4E4;          /* sayfa zemini */
  --card: #FFFFFF;        /* buton / kart zemini */
  --text: #2E3236;        /* gövde metni */
  --heading: #4A5056;     /* büyük başlıklar */
  --muted: #5F656B;       /* ikincil metin */
  --accent: #08705D;      /* turkuaz (metin için koyu ton) */
  --accent-bright: #13CFAD; /* turkuaz (çizgi / vurgu) */
  --tile: #4F555B;        /* baş harf bloğu */
  --tile-text: #F4F5F6;
  --line: #CFCFCF;
  --on-accent: #FFFFFF;
  --danger: #B42318;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #151719;
  --card: #1F2225;
  --text: #DDE1E4;
  --heading: #F0F2F3;
  --muted: #A3A9AE;
  --accent: #3FD9BC;
  --accent-bright: #13CFAD;
  --tile: #2A2E32;
  --tile-text: #F0F2F3;
  --line: #2F3337;
  --on-accent: #0D1F1B;
  --danger: #FF8A80;
  color-scheme: dark;
}
/* JS kapalıysa sistem tercihi */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #151719;
    --card: #1F2225;
    --text: #DDE1E4;
    --heading: #F0F2F3;
    --muted: #A3A9AE;
    --accent: #3FD9BC;
    --accent-bright: #13CFAD;
    --tile: #2A2E32;
    --tile-text: #F0F2F3;
    --line: #2F3337;
    --on-accent: #0D1F1B;
    --danger: #FF8A80;
    color-scheme: dark;
  }
}

/* ================= Temel ================= */
*, *::before, *::after { box-sizing: border-box; }
html { background: var(--bg); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
}
::selection { background: var(--accent-bright); color: #0D1F1B; }
.wrap { max-width: 860px; margin: 0 auto; padding: 1.5rem 2rem 2rem; }
a { color: var(--accent); text-underline-offset: .18em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }

/* ================= Üst çubuk ================= */
.topbar { display: flex; align-items: center; justify-content: flex-end; gap: 1rem; min-height: 40px; margin-bottom: 1.5rem; }
.topbar .back { margin-right: auto; }
.back {
  display: inline-flex; align-items: center; gap: .6rem;
  color: var(--heading); font-weight: 600; text-decoration: none; letter-spacing: -.01em;
}
.back:hover { color: var(--accent); }
.mini-tile {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; background: var(--tile); color: var(--tile-text);
  font-size: .8125rem; font-weight: 600; letter-spacing: -.03em;
}

.theme-toggle {
  display: none; align-items: center; justify-content: center; flex-shrink: 0;
  width: 40px; height: 40px; padding: 0;
  background: var(--card); color: var(--heading); border: 0; cursor: pointer;
}
.js .theme-toggle { display: inline-flex; }
.theme-toggle:hover { color: var(--accent); }
.theme-toggle svg { width: 18px; height: 18px; }
[data-theme="dark"] .icon-moon { display: none; }
:root:not([data-theme="dark"]) .icon-sun { display: none; }

/* ================= Giriş (hero) ================= */
.hero {
  display: grid; grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: 3.5rem; align-items: center;
  margin-bottom: 2.5rem;
}
.hero-tile {
  position: relative; display: flex; align-items: center; justify-content: center;
  aspect-ratio: 4 / 5; background: var(--tile); color: var(--tile-text);
}
.hero-tile.has-photo { overflow: hidden; }
.hero-tile img {
  position: absolute; inset: 0; width: 100%; height: 100%; max-width: none;
  object-fit: cover; object-position: center 30%; display: block;
}
.hero-tile span { font-size: 6.5rem; font-weight: 600; line-height: 1; letter-spacing: -.06em; }
.hero-tile::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 6px; background: var(--accent-bright);
}
.site-name {
  margin: 0; color: var(--heading);
  font-size: clamp(2.5rem, 6vw, 3.4rem); font-weight: 600; line-height: 1.05; letter-spacing: -.05em;
}
.tagline { margin: .75rem 0 0; color: var(--accent); font-size: 1rem; font-weight: 500; }
.rule { height: 0; margin: 1.5rem 0; border: 0; border-top: 1px solid var(--line); }
.rule-short { width: 3rem; border-top: 3px solid var(--accent-bright); margin: 1.25rem 0 1.75rem; }
.about { color: var(--muted); }
.about p:last-child { margin-bottom: 0; }

/* ================= Link butonları ================= */
.link-list { list-style: none; margin: 0 0 3.5rem; padding: 0; display: grid; gap: .75rem; }
.link-btn {
  display: flex; align-items: center; justify-content: center; gap: .6rem;
  min-height: 48px; padding: .75rem 1.25rem;
  background: var(--card); color: var(--accent);
  font-size: .8125rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; text-decoration: none;
  border: 1px solid transparent;
}
.link-btn:hover { border-color: var(--accent-bright); }
.link-btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ================= Yazı listesi ================= */
.section-title {
  display: flex; align-items: center; gap: 1rem; margin: 0 0 1.25rem;
  color: var(--muted); font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
}
.section-title::before, .section-title::after { content: ""; flex: 1; border-top: 1px solid var(--line); }
.empty { color: var(--muted); text-align: center; }

.post-card {
  display: block; margin-bottom: .75rem; padding: 1.75rem 2rem;
  background: var(--card); color: var(--text); text-decoration: none;
  border: 1px solid transparent; overflow-wrap: anywhere;
}
.post-card:hover { border-color: var(--accent-bright); }
.post-card > span { display: block; }
.post-meta { margin: 0; color: var(--muted); font-size: .8125rem; }
.post-card-title {
  margin: .35rem 0 .5rem; color: var(--heading);
  font-size: 1.375rem; font-weight: 600; line-height: 1.3; letter-spacing: -.02em;
}
.post-excerpt { color: var(--muted); }
.read-more {
  margin-top: 1rem; color: var(--accent);
  font-size: .75rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
}

/* ================= Yazı detay ================= */
.article { padding: 3rem 3.5rem; background: var(--card); overflow-wrap: anywhere; }
.article-title {
  margin: .4rem 0 0; color: var(--heading);
  font-size: clamp(1.75rem, 4.5vw, 2.5rem); font-weight: 600; line-height: 1.15; letter-spacing: -.035em;
}
.article-body { font-size: 1.0625rem; line-height: 1.8; }
.article-body p { margin: 0 0 1.2em; }
.article-body p:last-child { margin-bottom: 0; }
.article-back { margin: .75rem 0 0; }

/* ================= Alt bilgi ================= */
.site-footer { margin-top: 3rem; padding: 1.5rem 0 .5rem; text-align: center; color: var(--muted); font-size: .8125rem; }

/* ================= Mobil ================= */
@media (max-width: 720px) {
  .wrap { padding: 1rem 1rem 1.5rem; }
  .topbar { margin-bottom: 1rem; }
  .hero { grid-template-columns: 1fr; gap: 1.75rem; margin-bottom: 2rem; }
  .hero-tile { aspect-ratio: auto; height: 200px; }
  .hero-tile span { font-size: 5rem; }
  /* Fotoğraf varsa mobilde basık şerit yerine kare, makul boyutta göster */
  .hero-tile.has-photo { height: auto; aspect-ratio: 1 / 1; width: min(100%, 260px); }
  .rule { margin: 1.25rem 0; }
  .link-list { margin-bottom: 2.5rem; }
  .post-card { padding: 1.35rem 1.25rem; }
  .post-card-title { font-size: 1.25rem; }
  .article { padding: 1.75rem 1.25rem; }
  .article-body { font-size: 1.0625rem; }
}

/* ================= Admin ================= */
.admin .wrap { max-width: 720px; }
.admin-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.brand { font-weight: 700; color: var(--heading); letter-spacing: -.01em; }
.admin-nav {
  display: flex; flex-wrap: wrap; align-items: center; gap: .35rem 1.1rem;
  padding-bottom: 1rem; margin-bottom: 1.75rem; border-bottom: 1px solid var(--line);
  font-size: .9375rem;
}
.admin-nav a { color: var(--muted); text-decoration: none; }
.admin-nav a:hover, .admin-nav a.active { color: var(--heading); }
.admin-nav a.active { font-weight: 600; }
.admin-nav form { margin: 0 0 0 auto; }
.linkbtn { padding: 0; background: none; border: 0; font: inherit; color: var(--muted); cursor: pointer; }
.linkbtn:hover { color: var(--heading); }

.page-title { margin: 0 0 1.25rem; color: var(--heading); font-size: 1.5rem; line-height: 1.3; letter-spacing: -.02em; }
.field { margin-bottom: 1.25rem; }
label { display: block; margin-bottom: .35rem; font-weight: 600; }
.hint { margin: .35rem 0 0; font-size: .875rem; color: var(--muted); }
.field-error { margin: .35rem 0 0; font-size: .875rem; color: var(--danger); }
input[type="text"], input[type="password"], input[type="url"], textarea {
  width: 100%; padding: .65rem .75rem;
  font: inherit; font-size: 1rem;
  background: var(--card); color: var(--text);
  border: 1px solid var(--line); border-radius: 0;
}
input:focus, textarea:focus { border-color: var(--accent-bright); outline: none; }
textarea { min-height: 16rem; line-height: 1.6; resize: vertical; }
textarea.short { min-height: 9rem; }
.check { display: flex; align-items: center; gap: .55rem; font-weight: 400; cursor: pointer; }
.check input { width: 1.15rem; height: 1.15rem; margin: 0; accent-color: var(--accent); }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1rem; }
.btn {
  display: inline-block; padding: .65rem 1.2rem;
  font: inherit; font-weight: 600; line-height: 1.4; text-decoration: none; cursor: pointer;
  background: var(--accent); color: var(--on-accent);
  border: 1px solid var(--accent); border-radius: 0;
}
.btn:hover { filter: brightness(1.1); }
.btn-small { padding: .3rem .7rem; font-size: .875rem; font-weight: 500; }
.btn-ghost { background: var(--card); color: var(--text); border-color: var(--line); }
.btn-danger { background: var(--card); color: var(--danger); border-color: var(--line); }
.btn-ghost:hover, .btn-danger:hover { border-color: var(--muted); filter: none; }

.notice { margin-bottom: 1.5rem; padding: .75rem 1rem; background: var(--card); border-left: 3px solid var(--accent-bright); }
.notice.error { border-left-color: var(--danger); }

.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .6rem 1rem;
  margin-bottom: .5rem; padding: 1rem 1.25rem; background: var(--card);
}
.pl-main { min-width: 0; flex: 1 1 16rem; overflow-wrap: anywhere; }
.pl-title { display: block; font-weight: 600; color: var(--heading); text-decoration: none; }
.pl-title:hover { color: var(--accent); }
.pl-meta { font-size: .875rem; color: var(--muted); }
.pl-actions { display: flex; gap: .5rem; }
.pl-actions form { margin: 0; }
.badge { display: inline-block; margin-left: .35rem; padding: 0 .45rem; font-size: .75rem; border: 1px solid var(--line); color: var(--muted); }
.badge.on { border-color: var(--accent-bright); color: var(--accent); }

.narrow { max-width: 380px; margin: 2rem auto 0; }

@media (max-width: 720px) {
  .admin-nav form { margin-left: 0; }
}