/* ENCE 216 Capstone Portal — GCTU branded
   Navy: #002060   Amber: #D4A017
*/

* { box-sizing: border-box; }

:root {
  --navy: #002060;
  --navy-dark: #001540;
  --amber: #D4A017;
  --amber-dark: #b8870f;
  --ink: #1a1d29;
  --ink-soft: #4a4f63;
  --paper: #fafaf7;
  --line: #e6e3da;
  --ok: #1b7f3a;
  --err: #b3261e;
  --info: #0b5cad;
  --shadow: 0 1px 2px rgba(0,32,96,.06), 0 8px 24px rgba(0,32,96,.08);
}

html, body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
}

a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--navy);
  color: #fff;
  border-bottom: 4px solid var(--amber);
}

.brand { display: flex; align-items: center; gap: 14px; }

.brand-mark {
  background: var(--amber);
  color: var(--navy);
  font-weight: 800;
  letter-spacing: 1px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
}

.brand-text strong {
  display: block;
  font-size: 15px;
  letter-spacing: .2px;
}

.brand-text span {
  display: block;
  font-size: 12px;
  opacity: .8;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
}

.topnav a { color: #fff; padding: 6px 10px; border-radius: 6px; }
.topnav a:hover { background: rgba(255,255,255,.1); text-decoration: none; }

.topnav .who {
  color: #ffd97a;
  font-size: 13px;
  margin-right: 6px;
}

.btn-amber {
  background: var(--amber);
  color: var(--navy) !important;
  font-weight: 700;
}
.btn-amber:hover { background: var(--amber-dark); }

.btn-ghost {
  border: 1px solid rgba(255,255,255,.4);
}

/* ---------- Layout ---------- */
.container {
  max-width: 1100px;
  margin: 28px auto;
  padding: 0 24px;
}

.page-title {
  font-size: 22px;
  color: var(--navy);
  margin: 0 0 4px;
}

.page-sub {
  color: var(--ink-soft);
  margin-bottom: 24px;
  font-size: 14px;
}

/* ---------- Cards ---------- */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}

.card h2 {
  margin: 0 0 14px;
  color: var(--navy);
  font-size: 18px;
  border-left: 4px solid var(--amber);
  padding-left: 10px;
}

/* ---------- Forms ---------- */
form .row { margin-bottom: 14px; }
form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

form input[type=text], form input[type=email], form input[type=password],
form input[type=url], form select, form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
}

form input:focus, form select:focus, form textarea:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(0,32,96,.12);
}

form textarea { min-height: 80px; resize: vertical; }

.btn {
  background: var(--navy);
  color: #fff;
  border: 0;
  padding: 11px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { background: var(--navy-dark); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-secondary {
  background: var(--amber);
  color: var(--navy);
}
.btn-secondary:hover { background: var(--amber-dark); }

.btn-danger {
  background: var(--err);
}
.btn-danger:hover { background: #8a1d17; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
}

/* ---------- Tables ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: #fff;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: var(--navy);
  color: #fff;
  font-weight: 600;
  font-size: 13px;
}

tr:hover td { background: #fcf9ee; }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge-available { background: #e2f5ea; color: var(--ok); }
.badge-locked    { background: #fbe5e3; color: var(--err); }
.badge-mine      { background: var(--amber); color: var(--navy); }
.badge-info      { background: #e3f0fc; color: var(--info); }
.badge-leader    { background: var(--navy); color: #fff; }

/* ---------- Topic cards ---------- */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.topic-card {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 5px solid var(--amber);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.topic-card.taken { border-left-color: #cfcfcf; opacity: .72; }
.topic-card.mine  { border-left-color: var(--navy); background: #fffdf3; }

.topic-card h3 {
  margin: 0;
  font-size: 15px;
  color: var(--navy);
}

.topic-card .code {
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.topic-card p {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0;
  flex: 1;
}

.topic-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 6px;
}

.slots {
  font-size: 12px;
  color: var(--ink-soft);
}

/* ---------- Flash messages ---------- */
.flash {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 14px;
  font-size: 14px;
  border-left: 4px solid;
}
.flash-success { background: #e7f7ed; color: var(--ok); border-color: var(--ok); }
.flash-error   { background: #fbeae8; color: var(--err); border-color: var(--err); }
.flash-info    { background: #e6f0fa; color: var(--info); border-color: var(--info); }

/* ---------- Auth pages ---------- */
.auth-wrap {
  max-width: 460px;
  margin: 50px auto;
}

.auth-wrap h1 {
  color: var(--navy);
  font-size: 24px;
  margin: 0 0 4px;
}

.auth-wrap .sub {
  color: var(--ink-soft);
  margin-bottom: 24px;
  font-size: 14px;
}

.auth-link {
  text-align: center;
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* ---------- Footer ---------- */
.footer {
  text-align: center;
  padding: 22px 16px;
  background: var(--navy);
  color: #fff;
  font-size: 12px;
  margin-top: 40px;
}
.footer-sub { opacity: .7; margin-top: 4px; }

/* ---------- Stats (admin) ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px;
  border-top: 4px solid var(--amber);
}

.stat .label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--ink-soft);
}

.stat .value {
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  margin-top: 4px;
}

/* ---------- Utility ---------- */
.row-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.muted { color: var(--ink-soft); font-size: 13px; }
.right { text-align: right; }
.center { text-align: center; }
.tabs { display: flex; gap: 6px; margin-bottom: 18px; }
.tabs a {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  font-weight: 600;
}
.tabs a.active {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}