/* Yoklama Demo — mobil öncelikli, tek CSS (max-width ~720px, min 44px dokunma alanı) */
:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --ink: #1a2233;
  --muted: #5b6472;
  --line: #d7dde8;
  --accent: #2456c4;
  --accent-ink: #ffffff;
  --ok-bg: #e3f6e9;
  --ok-ink: #17663a;
  --err-bg: #fdeaea;
  --err-ink: #8f1d1d;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #10141d;
    --card: #1a2130;
    --ink: #e9edf5;
    --muted: #a3adbd;
    --line: #2c3648;
    --accent: #6f9bff;
    --accent-ink: #10141d;
    --ok-bg: #153723;
    --ok-ink: #8fe3ae;
    --err-bg: #3d1a1a;
    --err-ink: #ff9d9d;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
}
.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
}
.bar nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.bar nav a, .linklike {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 0 12px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  border-radius: 10px;
}
.linklike {
  background: none;
  border: none;
  font: inherit;
  cursor: pointer;
}
.inline { display: inline; margin: 0; }

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 16px 40px;
}
h1 { font-size: 1.5rem; margin: 12px 0 8px; }
h2 { font-size: 1.15rem; margin: 20px 0 8px; }
h3 { font-size: 1.02rem; margin: 0 0 4px; }
a { color: var(--accent); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin: 12px 0;
}

form.card label {
  display: block;
  font-weight: 600;
  margin: 10px 0 4px;
}
form.card input {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  font-size: 16px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
}
form.card input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.kod-input {
  font-size: 1.6rem !important;
  letter-spacing: 0.35em;
  text-align: center;
}
button[type="submit"], .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  margin-top: 16px;
  padding: 10px 16px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-ink);
  background: var(--accent);
  border: none;
  border-radius: 12px;
  text-decoration: none;
  cursor: pointer;
}
.btn { width: auto; min-width: 160px; }

.flash {
  padding: 12px 14px;
  border-radius: 12px;
  margin: 12px 0;
  font-weight: 600;
}
.flash.ok { background: var(--ok-bg); color: var(--ok-ink); }
.flash.err { background: var(--err-bg); color: var(--err-ink); }

.muted { color: var(--muted); }
.rozet { margin: 6px 0 0; }
.puan-kutu { text-align: center; }
.puan {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
}

.ders .ozet {
  display: flex;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
}
.ders .ozet li {
  flex: 1;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-weight: 700;
  border: 1px solid var(--line);
}
.ozet .var { background: var(--ok-bg); color: var(--ok-ink); }
.ozet .yok { background: var(--err-bg); color: var(--err-ink); }
.ozet .gec { background: var(--card); color: var(--muted); }

.tablo {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.tablo th, .tablo td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  min-height: 44px;
}
.tablo th { background: var(--bg); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.04em; }
.tablo tr.ben { background: var(--ok-bg); font-weight: 700; }
.tablo tr:last-child td { border-bottom: none; }

.foot {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px 24px;
  color: var(--muted);
  font-size: 0.85rem;
}

.ara { display: flex; gap: 8px; margin: 12px 0; }
.ara input { flex: 1; padding: 8px 10px; border: 1px solid var(--line, #ccc); border-radius: 8px; }
.ara .btn { min-width: 90px; margin: 0; }