/* ══════════════════════════════════════
   HostelOS — styles.css
   Theme: Industrial-Neon Dark
   ══════════════════════════════════════ */

:root {
  --bg: #090b10;
  --panel: #0f1218;
  --card: #13171f;
  --border: #1e2330;
  --border-bright: #2e3548;
  --accent: #00d9a3;
  --accent-dim: rgba(0, 217, 163, 0.12);
  --accent2: #e8583c;
  --accent3: #f0c040;
  --text: #d8dce8;
  --text-dim: #6b7490;
  --text-bright: #ffffff;
  --danger: #ef4444;
  --success: #00d9a3;
  --warning: #f0c040;
  --radius: 10px;
  --radius-lg: 16px;
  --transition: 0.2s ease;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Syne', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Background ── */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,217,163,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,217,163,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
}

.bg-orb {
  position: fixed; border-radius: 50%; pointer-events: none; z-index: 0;
  filter: blur(120px);
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,217,163,0.08) 0%, transparent 70%);
  top: -200px; left: -100px;
  animation: orbFloat 12s ease-in-out infinite alternate;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(232,88,60,0.06) 0%, transparent 70%);
  bottom: -100px; right: -100px;
  animation: orbFloat 15s ease-in-out infinite alternate-reverse;
}
@keyframes orbFloat {
  from { transform: translate(0, 0); }
  to   { transform: translate(30px, 20px); }
}

/* ── Header ── */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(9, 11, 16, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 20px;
  padding: 0 32px;
  height: 64px;
}

.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  white-space: nowrap;
}
.logo-icon {
  font-size: 1.4rem;
  color: var(--accent);
  animation: pulse 3s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.logo-text {
  font-size: 1.1rem;
  color: var(--text-bright);
  letter-spacing: 0.05em;
}

.nav-tabs {
  display: flex; gap: 4px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  margin: 0 auto;
}
.nav-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: 'Syne', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 7px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.02em;
}
.nav-btn:hover { color: var(--text); background: var(--border); }
.nav-btn.active {
  background: var(--accent);
  color: #000;
}

.room-counter {
  font-family: 'Space Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-dim);
  white-space: nowrap;
}
.room-counter span {
  color: var(--accent);
  font-weight: 700;
}

/* ── Main ── */
.main {
  position: relative; z-index: 1;
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* ── Tab Panels ── */
.tab-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}
.tab-panel.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Panel Header ── */
.panel-header { margin-bottom: 32px; }
.panel-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.panel-title::after {
  content: '.';
  color: var(--accent);
}
.panel-subtitle {
  margin-top: 6px;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ── Form Card ── */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}
.form-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}

/* ── Field ── */
.field-group {
  display: flex; flex-direction: column; gap: 8px;
}
.field-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.field-input {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-bright);
  font-family: 'Space Mono', monospace;
  font-size: 0.95rem;
  padding: 12px 16px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.field-input::placeholder { color: var(--text-dim); }
.field-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.field-input.error { border-color: var(--danger); }
.field-error {
  font-size: 0.78rem;
  color: var(--danger);
  min-height: 16px;
}

/* ── Toggle Switch ── */
.toggle-group {
  display: flex; flex-direction: column; gap: 12px;
}
.toggle-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.toggle-switch {
  display: flex; align-items: center; gap: 12px; cursor: pointer;
}
.toggle-switch input { display: none; }
.toggle-track {
  width: 48px; height: 26px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  position: relative;
  transition: all var(--transition);
  flex-shrink: 0;
}
.toggle-thumb {
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.toggle-switch input:checked ~ .toggle-track { background: var(--accent-dim); border-color: var(--accent); }
.toggle-switch input:checked ~ .toggle-track .toggle-thumb {
  left: 25px; background: var(--accent);
}
.toggle-text {
  font-family: 'Space Mono', monospace;
  font-size: 0.85rem;
  color: var(--text-dim);
  transition: color var(--transition);
}
.toggle-switch input:checked ~ .toggle-text { color: var(--accent); }

/* ── Radio Group ── */
.radio-group {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.radio-opt {
  display: flex; align-items: center; gap: 8px;
  cursor: pointer;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 0.85rem;
  transition: all var(--transition);
  white-space: nowrap;
}
.radio-opt:hover { border-color: var(--border-bright); }
.radio-opt input[type="radio"] { display: none; }
.radio-opt:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  padding: 12px 24px;
  border: none; border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover {
  background: #00f0b5;
  box-shadow: 0 0 20px rgba(0,217,163,0.4);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.btn-ghost:hover { border-color: var(--border-bright); color: var(--text); }
.btn-danger {
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  font-size: 0.75rem;
  padding: 6px 12px;
}
.btn-danger:hover { background: rgba(239,68,68,0.1); }
.btn-icon { font-size: 1rem; }
.btn-allocate { width: 100%; justify-content: center; padding: 16px; font-size: 1rem; }
.btn-row { display: flex; gap: 12px; align-items: center; }

/* ── Toolbar ── */
.toolbar {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; gap: 16px; flex-wrap: wrap;
}
.stats-bar { display: flex; gap: 10px; flex-wrap: wrap; }
.stat-chip {
  font-family: 'Space Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-dim);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
}
.stat-chip strong { color: var(--accent); }

/* ── Rooms Grid ── */
.rooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

/* ── Room Card ── */
.room-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  transition: all var(--transition);
  animation: cardIn 0.35s ease;
  overflow: hidden;
}
@keyframes cardIn {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}
.room-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.room-card.allocated {
  border-color: var(--accent);
  box-shadow: 0 0 24px var(--accent-dim);
}
.room-card.allocated::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--accent);
}

.room-no {
  font-family: 'Space Mono', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 16px;
}

.room-badges {
  display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px;
}
.badge {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 999px;
  text-transform: uppercase;
}
.badge-cap {
  background: rgba(240,192,64,0.12);
  border: 1px solid rgba(240,192,64,0.3);
  color: var(--warning);
}
.badge-ac {
  background: var(--accent-dim);
  border: 1px solid rgba(0,217,163,0.3);
  color: var(--accent);
}
.badge-wash {
  background: rgba(232,88,60,0.1);
  border: 1px solid rgba(232,88,60,0.3);
  color: var(--accent2);
}
.badge-off {
  background: rgba(107,116,144,0.1);
  border: 1px solid var(--border);
  color: var(--text-dim);
}

.room-card-footer {
  display: flex; justify-content: flex-end; margin-top: 12px;
}

.allocated-label {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.78rem; font-weight: 600;
  color: var(--accent); letter-spacing: 0.05em;
}
.allocated-label::before {
  content: ''; display: block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: blink 1.4s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* ── Empty State ── */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 24px;
  color: var(--text-dim);
}
.empty-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
.empty-state p { font-size: 0.95rem; line-height: 1.7; }
.empty-state strong { color: var(--text); }

/* ── Output Panel ── */
.output-panel {
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 20px;
  font-family: 'Space Mono', monospace;
  font-size: 0.88rem;
  line-height: 1.6;
  animation: fadeIn 0.3s ease;
}
.output-panel.success {
  background: rgba(0,217,163,0.08);
  border: 1px solid rgba(0,217,163,0.3);
  color: var(--accent);
}
.output-panel.error {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.3);
  color: var(--danger);
}
.output-panel.info {
  background: rgba(240,192,64,0.08);
  border: 1px solid rgba(240,192,64,0.3);
  color: var(--warning);
}

/* ── Responsive ── */
@media (max-width: 680px) {
  .header { padding: 0 16px; gap: 12px; }
  .nav-btn { padding: 7px 12px; font-size: 0.78rem; }
  .main { padding: 24px 16px 60px; }
  .panel-title { font-size: 1.5rem; }
  .form-card { padding: 20px; }
  .room-counter { display: none; }
}