/* ============================================
   Tatkal Assistant — App Stylesheet
   Theme: Utility-industrial, deep navy + saffron
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@500;600;700&family=IBM+Plex+Sans:wght@300;400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --navy:     #0b1220;
  --navy-mid: #131e33;
  --navy-card:#182540;
  --saffron:  #f7941d;
  --saffron-dim: #b96c10;
  --green:    #22c55e;
  --red:      #ef4444;
  --blue:     #3b82f6;
  --text:     #e2eaf6;
  --text-dim: #7b8db0;
  --border:   #1e2f4d;
  --radius:   8px;
  --font-head: 'Rajdhani', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--navy);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  min-height: 100vh;
}

/* ── Layout ── */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  background: var(--navy-mid);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-logo {
  padding: 20px 18px 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar-logo .brand {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  color: var(--saffron);
  letter-spacing: 1px;
  line-height: 1;
}
.sidebar-logo .sub {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
  font-family: var(--font-mono);
  letter-spacing: .5px;
}

.nav-section { padding: 14px 12px 6px; }
.nav-label {
  font-size: 10px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 0 6px;
  margin-bottom: 6px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius);
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all .15s;
  margin-bottom: 2px;
}
.nav-link:hover { background: var(--navy-card); color: var(--text); }
.nav-link.active { background: rgba(247,148,29,.12); color: var(--saffron); }
.nav-link .icon { width: 18px; text-align: center; font-size: 16px; }

.sidebar-footer {
  margin-top: auto;
  padding: 12px;
  border-top: 1px solid var(--border);
}
.btn-irctc {
  display: block;
  width: 100%;
  padding: 10px;
  background: var(--saffron);
  color: #fff;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .5px;
  text-align: center;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background .15s;
}
.btn-irctc:hover { background: var(--saffron-dim); color: #fff; }

.main { flex: 1; overflow-x: hidden; }

.topbar {
  padding: 20px 28px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.page-title {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .5px;
}
.page-title span { color: var(--saffron); }

.content { padding: 20px 28px 40px; }

/* ── Cards ── */
.card {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-title {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: .5px;
}

/* ── Stat boxes ── */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px,1fr)); gap: 14px; margin-bottom: 22px; }
.stat {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.stat-val {
  font-family: var(--font-head);
  font-size: 34px;
  font-weight: 700;
  color: var(--saffron);
  line-height: 1;
}
.stat-label {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 5px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* ── Countdown strip on dashboard ── */
.countdown-block {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}
.cd-item { text-align: center; }
.cd-val {
  font-family: var(--font-head);
  font-size: 44px;
  font-weight: 700;
  color: var(--saffron);
  line-height: 1;
  min-width: 60px;
  display: block;
  font-variant-numeric: tabular-nums;
}
.cd-label {
  font-size: 10px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.cd-sep { font-family: var(--font-head); font-size: 40px; color: var(--border); padding-bottom: 8px; }
.cd-info { flex: 1; min-width: 180px; }
.cd-type {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}
.cd-desc { font-size: 13px; color: var(--text-dim); }
.cd-open { color: var(--green); font-weight: 600; }

/* ── Table ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text-dim);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-weight: 500;
  white-space: nowrap;
}
tbody tr { border-bottom: 1px solid rgba(30,47,77,.6); transition: background .1s; }
tbody tr:hover { background: rgba(247,148,29,.04); }
tbody td { padding: 11px 14px; font-size: 14px; }
tbody tr:last-child { border-bottom: none; }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: .3px;
}
.badge-green   { background: rgba(34,197,94,.15);  color: var(--green); }
.badge-saffron { background: rgba(247,148,29,.15); color: var(--saffron); }
.badge-blue    { background: rgba(59,130,246,.15); color: var(--blue); }
.badge-red     { background: rgba(239,68,68,.15);  color: var(--red); }
.badge-gray    { background: rgba(123,141,176,.12);color: var(--text-dim); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all .15s;
  line-height: 1.2;
}
.btn-primary   { background: var(--saffron); color: #fff; }
.btn-primary:hover { background: var(--saffron-dim); color: #fff; }
.btn-secondary { background: var(--navy-mid); border: 1px solid var(--border); color: var(--text); }
.btn-secondary:hover { border-color: var(--saffron); color: var(--saffron); }
.btn-danger    { background: rgba(239,68,68,.15); border: 1px solid rgba(239,68,68,.3); color: var(--red); }
.btn-danger:hover { background: rgba(239,68,68,.25); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 6px 8px; }

/* ── Forms ── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1/-1; }
.form-label {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .5px;
}
.form-control {
  background: var(--navy-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 9px 12px;
  transition: border-color .15s;
  outline: none;
  width: 100%;
}
.form-control:focus { border-color: var(--saffron); }
.form-control::placeholder { color: var(--text-dim); opacity: .6; }
select.form-control { appearance: none; cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

.form-actions { display: flex; gap: 10px; align-items: center; margin-top: 20px; }

/* ── Toast ── */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  z-index: 9999;
  opacity: 0;
  transform: translateY(8px);
  transition: all .25s;
  pointer-events: none;
  max-width: 320px;
}
#toast.show { opacity: 1; transform: translateY(0); }
#toast.success { background: rgba(34,197,94,.15); border: 1px solid var(--green); color: var(--green); }
#toast.error   { background: rgba(239,68,68,.15);  border: 1px solid var(--red);   color: var(--red); }

/* ── Modal ── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(5,10,20,.8);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-title { font-family: var(--font-head); font-size: 18px; font-weight: 700; color: var(--text); }
.modal-body { padding: 20px 22px; }
.modal-close {
  background: none; border: none; color: var(--text-dim);
  cursor: pointer; font-size: 20px; padding: 2px 6px; border-radius: 4px;
  transition: color .15s;
}
.modal-close:hover { color: var(--text); }

/* ── Alerts ── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
}
.alert-info    { background: rgba(59,130,246,.1);  border: 1px solid rgba(59,130,246,.3);  color: #93c5fd; }
.alert-warning { background: rgba(247,148,29,.1);  border: 1px solid rgba(247,148,29,.3);  color: var(--saffron); }
.alert-success { background: rgba(34,197,94,.1);   border: 1px solid rgba(34,197,94,.3);   color: var(--green); }

/* ── Empty state ── */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-dim); }
.empty-icon  { font-size: 44px; margin-bottom: 14px; }
.empty-title { font-family: var(--font-head); font-size: 18px; color: var(--text); margin-bottom: 6px; }
.empty-desc  { font-size: 13px; }

/* ── Big Countdown Page ── */
.big-countdown {
  display: flex;
  gap: 0;
  align-items: center;
  justify-content: center;
  padding: 50px 0 30px;
  flex-wrap: wrap;
}
.bc-unit { text-align: center; padding: 0 16px; }
.bc-num {
  font-family: var(--font-head);
  font-size: 96px;
  font-weight: 700;
  color: var(--saffron);
  line-height: 1;
  display: block;
  font-variant-numeric: tabular-nums;
}
.bc-lbl {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 6px;
}
.bc-colon {
  font-family: var(--font-head);
  font-size: 80px;
  color: var(--border);
  padding: 0 4px;
  padding-bottom: 12px;
}
.timing-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; max-width: 500px; margin: 0 auto; }
.timing-card {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  text-align: center;
}
.timing-card .class-name { font-family: var(--font-head); font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.timing-card .open-time { font-family: var(--font-mono); font-size: 28px; color: var(--saffron); margin: 8px 0; }
.timing-card .status-line { font-size: 12px; }

/* ── Responsive ── */
@media (max-width: 700px) {
  .sidebar { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .content { padding: 16px; }
  .topbar { padding: 16px 16px 0; }
  .bc-num { font-size: 56px; }
  .bc-colon { font-size: 50px; }
  .timing-cards { grid-template-columns: 1fr; }
}

/* ── Utility ── */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-1 { margin-top: 6px; }
.mt-2 { margin-top: 12px; }
.mt-3 { margin-top: 20px; }
.mb-2 { margin-bottom: 12px; }
.mb-3 { margin-bottom: 20px; }
.text-dim { color: var(--text-dim); }
.text-sm  { font-size: 13px; }
.text-mono { font-family: var(--font-mono); }
.text-saffron { color: var(--saffron); }
.text-green   { color: var(--green); }
.text-red     { color: var(--red); }