:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #1a1d23;
  --muted: #6b7280;
  --line: #e4e7ec;
  --accent: #2563eb;
  --accent-soft: #eff4ff;
  --a-tint: #eef6ff;
  --a-edge: #93c5fd;
  --b-tint: #fef3ec;
  --b-edge: #fdba74;
  --good: #15803d;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);
  --radius: 12px;
  /* Uyum ölçeği renkleri (4 Tam → 1 Uyumlu Değildir) */
  --s4-bg: #dcfce7; --s4-fg: #166534; --s4-bd: #86efac;
  --s3-bg: #ecfccb; --s3-fg: #4d7c0f; --s3-bd: #bef264;
  --s2-bg: #fef3c7; --s2-fg: #b45309; --s2-bd: #fcd34d;
  --s1-bg: #fee2e2; --s1-fg: #b91c1c; --s1-bd: #fca5a5;
  /* Karar/yorum paneli — nötr gri (mavi/turuncu seçim renkleriyle çakışmasın) */
  --choice-bg: #eceef2; --choice-bd: #d3d8e0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115; --panel: #171a21; --ink: #e6e8ec; --muted: #9aa1ac;
    --line: #262b34; --accent: #60a5fa; --accent-soft: #16233b;
    --a-tint: #12233b; --a-edge: #2f5b8f; --b-tint: #3a2416; --b-edge: #8a5326;
    --s4-bg: #052e16; --s4-fg: #4ade80; --s4-bd: #166534;
    --s3-bg: #1a2e05; --s3-fg: #a3e635; --s3-bd: #3f6212;
    --s2-bg: #3a2a06; --s2-fg: #fbbf24; --s2-bd: #78560f;
    --s1-bg: #3a0d0d; --s1-fg: #f87171; --s1-bd: #7f1d1d;
    --choice-bg: #1e222a; --choice-bd: #333a45;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--ink);
  -webkit-text-size-adjust: 100%;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 13px; }
.err { color: #dc2626; font-size: 13px; min-height: 18px; }

/* ---- Login ---- */
.gate { position: fixed; inset: 0; display: grid; place-items: center; background: var(--bg); z-index: 50; padding: 20px; }
.gate-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; width: min(380px, 92vw); display: flex; flex-direction: column; gap: 12px; }
.gate-card h1 { margin: 0; font-size: 20px; }
.gate-card label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.gate-card input { padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font-size: 15px; }
.gate-card button, .topbar button, #login-form button { cursor: pointer; }
.gate-card button { background: var(--accent); color: #fff; border: 0; padding: 11px; border-radius: 8px; font-size: 15px; font-weight: 600; }

/* ---- Topbar ---- */
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.topbar-left { display: flex; align-items: center; gap: 8px; min-width: 0; }
.topbar-title { font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-right { display: flex; align-items: center; gap: 8px; }
#nav-toggle { font-size: 17px; }
.pill { background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 2px 10px; font-size: 12px; font-weight: 600; }
#univ-select { padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font-size: 14px; max-width: 60vw; }
.ghost { background: transparent; border: 1px solid var(--line); color: var(--ink); border-radius: 8px; width: 32px; height: 32px; font-size: 15px; }

/* ---- Progress ---- */
.progress-wrap { position: sticky; top: 52px; z-index: 15; height: 24px; background: var(--panel); border-bottom: 1px solid var(--line); display: flex; align-items: center; padding: 0 16px; gap: 10px; }
#progress-bar { height: 6px; border-radius: 4px; background: var(--good); width: 0; transition: width .25s; flex: 0 0 auto; min-width: 2px; }
.progress-wrap { overflow: hidden; }
.progress-track { position: relative; flex: 1; height: 6px; background: var(--line); border-radius: 4px; }
#progress-text { font-size: 12px; color: var(--muted); white-space: nowrap; }

/* ---- Layout ---- */
.layout { display: grid; grid-template-columns: 240px 1fr; gap: 0; align-items: start; transition: grid-template-columns .2s; }
/* Menü gizliyken tek sütun: nav display:none olunca panel grid'de tek
   kalır; şablon iki sütunlu kalırsa panel 0px'lik ilk track'e düşer, o yüzden
   tek 1fr'a indiriyoruz — panel tüm genişliği alıp max-width'e kadar açılır. */
.layout.nav-hidden { grid-template-columns: 1fr; }
.layout.nav-hidden .olcut-nav { display: none; }
.olcut-nav { position: sticky; top: 76px; max-height: calc(100vh - 76px); overflow-y: auto; border-right: 1px solid var(--line); padding: 8px; background: var(--panel); }
.nav-sec { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); padding: 10px 8px 4px; }
.nav-item { display: flex; align-items: center; gap: 6px; padding: 6px 8px; border-radius: 7px; cursor: pointer; font-size: 13px; }
.nav-item:hover { background: var(--bg); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--line); flex: 0 0 auto; }
.nav-item.done .nav-dot { background: var(--good); }
.olcut-panel { padding: 18px clamp(12px, 4vw, 40px); max-width: 1100px; margin: 0 auto; width: 100%; transition: max-width .2s; }
.layout.nav-hidden .olcut-panel { max-width: 1500px; }

/* ---- Ölçüt content ---- */
.olcut-head h2 { margin: 0 0 2px; font-size: 20px; }
.olcut-head .kick { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.block { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); margin: 14px 0; overflow: hidden; }
.block > summary, .block-head { padding: 12px 16px; font-weight: 600; cursor: pointer; display: flex; align-items: center; gap: 8px; }
.block > summary::-webkit-details-marker { display: none; }
.block-body { padding: 0 16px 14px; }
.tag { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.tag-ctx { background: var(--accent-soft); color: var(--accent); }
.answer-text { white-space: pre-wrap; font-size: 14px; color: var(--ink); }
.ev-list { margin: 6px 0 0; padding-left: 18px; font-size: 13px; color: var(--muted); }
.guide-list { margin: 6px 0 0; padding-left: 18px; font-size: 13.5px; }

/* ---- A/B compare (satır hizalı + sabit Model A/B başlığı) ---- */
.compare { margin: 16px 0 24px; }

/* Sabit başlık: aşağı kaydırınca Model A (sol) / Model B (sağ) görünür kalır */
.compare-head {
  position: sticky; top: 76px; z-index: 12;
  display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px;
}
.mhead {
  padding: 10px 14px; font-weight: 700; font-size: 15px;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  border: 1.5px solid var(--line); border-bottom: 0;
  border-radius: var(--radius) var(--radius) 0 0;
}
.mhead.side-A { background: var(--a-tint); border-color: var(--a-edge); }
.mhead.side-B { background: var(--b-tint); border-color: var(--b-edge); }

/* Gövde: her alt ölçüt = bir satır; A ve B hücresi aynı grid satırında olduğu
   için ikisinin yüksekliği eşitlenir (uzun olan belirler) → tam yan yana. */
.compare-body { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; align-items: stretch; }
.ccell {
  padding: 13px 16px; background: var(--panel);
  border: 1.5px solid var(--line); border-top: 1px solid var(--line);
}
.ccell.side-A { border-color: var(--a-edge); }
.ccell.side-B { border-color: var(--b-edge); }
.compare-body .ccell:nth-last-child(2) { border-radius: 0 0 0 var(--radius); }
.compare-body .ccell:last-child { border-radius: 0 0 var(--radius) 0; }
.assess-cell, .overall-cell { background: var(--bg); }

.crit-top { display: flex; align-items: baseline; gap: 8px; margin-bottom: 4px; flex-wrap: wrap; }
.crit-title { font-size: 14px; color: var(--ink); font-weight: 600; }
.crit-eval { font-size: 13.5px; line-height: 1.55; margin: 4px 0 5px; }
.crit-rat { font-size: 13.5px; line-height: 1.55; color: var(--muted); }
.crit-rat b { color: var(--ink); font-weight: 600; }
.crit-empty { font-size: 13px; font-style: italic; }
.cell-label { font-size: 13px; font-weight: 700; color: var(--ink); }

/* ---- skor rozeti + uyum rengi ---- */
.score-badge { font-weight: 700; font-size: 12.5px; padding: 2px 9px; border-radius: 999px; background: var(--bg); border: 1px solid var(--line); flex: 0 0 auto; white-space: nowrap; }
.score-badge.score-4 { background: var(--s4-bg); color: var(--s4-fg); border-color: var(--s4-bd); }
.score-badge.score-3 { background: var(--s3-bg); color: var(--s3-fg); border-color: var(--s3-bd); }
.score-badge.score-2 { background: var(--s2-bg); color: var(--s2-fg); border-color: var(--s2-bd); }
.score-badge.score-1 { background: var(--s1-bg); color: var(--s1-fg); border-color: var(--s1-bd); }

/* ---- kanıt linkleri (yeni sekmede açılır) ---- */
.ev-link { color: var(--accent); text-decoration: none; }
.ev-link:hover { text-decoration: underline; }

/* ---- Choice ---- */
.choice { position: sticky; bottom: 0; background: var(--choice-bg); border: 1px solid var(--choice-bd); border-radius: var(--radius); box-shadow: var(--shadow); padding: 4px 14px; margin: 8px 0 24px; }
/* Katlanır özet başlığı — kapalıyken kararı gösterir */
.choice-sum { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 2px; font-size: 15px; font-weight: 600; user-select: none; }
.choice-sum::-webkit-details-marker { display: none; }
.choice-sum::after { content: "▾"; color: var(--muted); font-size: 12px; transition: transform .15s; }
.choice[open] .choice-sum::after { transform: rotate(180deg); }
.choice-sum-q { flex: 1; }
.choice-state { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--line); }
.choice-state.st-none { color: var(--muted); }
.choice-state.st-A { color: var(--accent); border-color: var(--a-edge); background: var(--a-tint); }
.choice-state.st-B { color: #c2610c; border-color: var(--b-edge); background: var(--b-tint); }
.choice-state.st-E { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
/* Yorum solda · seçim+skor sağda (dar ekranda alt alta). */
.choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; padding: 4px 0 12px; }
.choice-right { display: flex; flex-direction: column; }
.choice-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.cbtn { flex: 1; min-width: 76px; padding: 10px; border: 1.5px solid var(--line); border-radius: 10px; background: var(--bg); cursor: pointer; font-size: 15px; font-weight: 600; color: var(--ink); }
.cbtn.pick-A.on { border-color: var(--a-edge); background: var(--a-tint); }
.cbtn.pick-B.on { border-color: var(--b-edge); background: var(--b-tint); }
.cbtn.pick-E.on { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
/* Sade geliştirme notu */
.note-box { display: flex; flex-direction: column; }
.note-label { font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.note-box textarea { width: 100%; display: block; min-height: 88px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); font: inherit; resize: vertical; }
.save-hint { font-size: 12px; color: var(--muted); min-height: 0; }
.save-hint.ok { color: var(--good); min-height: 16px; margin-bottom: 6px; }
@media (max-width: 720px) { .choice-grid { grid-template-columns: 1fr; } }

/* ---- kalite skoru (opsiyonel, 4 üzerinden) ---- */
.rating-block { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--line); }
.rating-title { font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 8px; }
.rating-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.rbtn { padding: 6px 12px; border: 1.5px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); cursor: pointer; font-size: 13px; font-weight: 600; }
.rbtn.on.rb-4 { background: var(--s4-bg); color: var(--s4-fg); border-color: var(--s4-bd); }
.rbtn.on.rb-3 { background: var(--s3-bg); color: var(--s3-fg); border-color: var(--s3-bd); }
.rbtn.on.rb-2 { background: var(--s2-bg); color: var(--s2-fg); border-color: var(--s2-bd); }
.rbtn.on.rb-1 { background: var(--s1-bg); color: var(--s1-fg); border-color: var(--s1-bd); }

.pager { display: flex; justify-content: space-between; gap: 10px; margin: 4px 0 24px; }
.pager button { padding: 10px 16px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); color: var(--ink); cursor: pointer; font-size: 14px; }
.pager button:disabled { opacity: .4; cursor: default; }

/* ---- Modal ---- */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: grid; place-items: center; z-index: 40; padding: 20px; }
.modal-card { background: var(--panel); border-radius: var(--radius); padding: 24px; max-width: 560px; width: 100%; position: relative; }
.modal-close { position: absolute; top: 10px; right: 12px; background: transparent; border: 0; font-size: 24px; color: var(--muted); cursor: pointer; }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .olcut-nav { position: static; max-height: none; border-right: 0; border-bottom: 1px solid var(--line); display: flex; overflow-x: auto; gap: 4px; }
  .nav-sec { display: none; }
  .nav-item { white-space: nowrap; }
  /* Dar ekranda yan yana sığmaz: tek sütuna in, sabit başlığı kapat. */
  .compare-head { position: static; grid-template-columns: 1fr; gap: 0; }
  .compare-body { grid-template-columns: 1fr; gap: 0; }
}