/* =====================================================
   AuthHub – Merkezi Kullanıcı Sistemi arayüzü
   Palet: mürekkep laciverdi zemin çubuğu, kâğıt beyazı içerik,
   sinyal mavisi eylem rengi, kehribar admin vurgusu.
   ===================================================== */

:root {
  --ink: #141b2e;          /* kenar çubuğu / koyu zemin */
  --ink-soft: #1e2740;
  --paper: #f6f7f9;        /* sayfa zemini */
  --card: #ffffff;
  --line: #e3e6ec;
  --text: #21262f;
  --muted: #6b7280;
  --action: #2456d6;       /* birincil eylem */
  --action-ink: #1a41a6;
  --amber: #b45309;        /* admin rozeti */
  --green: #0f7b4d;
  --red: #b42318;
  --red-bg: #fdf1f0;
  --green-bg: #eefaf4;
  --radius: 8px;
  --mono: ui-monospace, "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, "Inter", Arial, sans-serif;
  font-size: 15px;
  color: var(--text);
  background: var(--paper);
  line-height: 1.55;
}
a { color: var(--action); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Uygulama iskeleti ---------- */
.app { display: flex; min-height: 100vh; }

.sidebar {
  width: 232px; flex-shrink: 0;
  background: var(--ink); color: #c7cddd;
  display: flex; flex-direction: column;
  padding: 20px 14px;
}
.brand {
  color: #fff; font-weight: 700; font-size: 17px;
  letter-spacing: .04em; padding: 4px 10px 18px;
  border-bottom: 1px solid var(--ink-soft); margin-bottom: 14px;
}
.brand small { display: block; font-weight: 400; font-size: 11px; color: #7f8aa8; letter-spacing: .12em; text-transform: uppercase; margin-top: 2px; }
.nav a {
  display: block; padding: 9px 10px; border-radius: 6px;
  color: #c7cddd; font-size: 14px; margin-bottom: 2px;
}
.nav a:hover { background: var(--ink-soft); text-decoration: none; color: #fff; }
.nav a.active { background: var(--action); color: #fff; }
.sidebar .spacer { flex: 1; }
.sidebar .whoami { font-size: 12.5px; color: #8b95b0; padding: 10px; border-top: 1px solid var(--ink-soft); }
.sidebar .whoami strong { color: #e6e9f2; display: block; }

.main { flex: 1; padding: 28px 32px; max-width: 1100px; }

.page-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.page-head h1 { margin: 0; font-size: 21px; letter-spacing: -0.01em; }
.page-head p { margin: 4px 0 0; color: var(--muted); font-size: 13.5px; }

/* ---------- Kartlar / tablolar ---------- */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px; margin-bottom: 20px;
}
.card h2 { margin: 0 0 14px; font-size: 16px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th {
  text-align: left; font-size: 11.5px; text-transform: uppercase;
  letter-spacing: .08em; color: var(--muted);
  padding: 8px 12px; border-bottom: 1px solid var(--line);
}
td { padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tr:hover td { background: #fafbfc; }

.badge {
  display: inline-block; font-size: 11.5px; font-weight: 600;
  padding: 2px 9px; border-radius: 999px; letter-spacing: .02em;
}
.badge.admin  { background: #fef3e2; color: var(--amber); }
.badge.user   { background: #eef1f6; color: #4a5266; }
.badge.on     { background: var(--green-bg); color: var(--green); }
.badge.off    { background: var(--red-bg); color: var(--red); }

/* ---------- Formlar ---------- */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 5px; }
input[type=text], input[type=email], input[type=password], select {
  width: 100%; padding: 9px 12px; font-size: 14.5px;
  border: 1px solid #cdd3dd; border-radius: 6px; background: #fff;
  color: var(--text); font-family: inherit;
}
input:focus, select:focus { outline: 2px solid var(--action); outline-offset: 1px; border-color: var(--action); }
.field { margin-bottom: 16px; }
.hint { font-size: 12.5px; color: var(--muted); margin-top: 4px; }
.check { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; }
.check input { width: 16px; height: 16px; }

.btn {
  display: inline-block; border: 0; cursor: pointer;
  background: var(--action); color: #fff; font-size: 14.5px; font-weight: 600;
  padding: 10px 20px; border-radius: 6px; font-family: inherit;
}
.btn:hover { background: var(--action-ink); }
.btn.secondary { background: #eef1f6; color: var(--text); }
.btn.secondary:hover { background: #e3e7ee; }
.btn.danger { background: var(--red); }
.btn.danger:hover { background: #8f1c13; }
.btn.small { padding: 5px 12px; font-size: 13px; }
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

/* ---------- Uyarılar ---------- */
.alert { padding: 12px 16px; border-radius: 6px; font-size: 14px; margin-bottom: 18px; border: 1px solid; }
.alert.error   { background: var(--red-bg); color: var(--red); border-color: #f3c6c1; }
.alert.success { background: var(--green-bg); color: var(--green); border-color: #bfe8d4; }
.alert.info    { background: #eef4ff; color: var(--action-ink); border-color: #c9d9f7; }

/* ---------- Anahtar / token gösterimi (imza öğesi) ---------- */
.keybox {
  font-family: var(--mono); font-size: 13px;
  background: var(--ink); color: #d9e2f5;
  padding: 14px 16px; border-radius: 6px;
  word-break: break-all; position: relative;
  border-left: 3px solid var(--action);
}
.keybox .kb-label {
  font-family: inherit; display: block; font-size: 10.5px;
  letter-spacing: .14em; text-transform: uppercase; color: #7f8aa8; margin-bottom: 4px;
}
.mono { font-family: var(--mono); font-size: 13px; }

/* ---------- Giriş ekranı ---------- */
.auth-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--ink); padding: 24px;
}
.auth-card {
  width: 100%; max-width: 400px; background: var(--card);
  border-radius: 10px; padding: 34px 32px;
}
.auth-card .brandline { text-align: center; margin-bottom: 24px; }
.auth-card .brandline strong { font-size: 19px; letter-spacing: .03em; }
.auth-card .brandline span { display: block; font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }
.auth-card .btn { width: 100%; margin-top: 6px; }
.auth-foot { text-align: center; margin-top: 16px; font-size: 13.5px; }

/* ---------- İstatistik kutuları ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.stat .num { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; }
.stat .lbl { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }

.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.table-scroll { overflow-x: auto; }

/* ---------- Mobil ---------- */
@media (max-width: 800px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; flex-direction: row; flex-wrap: wrap; align-items: center; padding: 12px; }
  .brand { border: 0; margin: 0 12px 0 0; padding: 0 6px; }
  .nav { display: flex; flex-wrap: wrap; gap: 2px; }
  .sidebar .spacer, .sidebar .whoami { display: none; }
  .main { padding: 18px 14px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}