/* ============================================
   StableRoomie — Professional UI Stylesheet
   ============================================ */

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

/* ── Design Tokens ─────────────────────────── */
:root {
  /* Brand */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-primary-muted: rgba(37, 99, 235, 0.08);

  /* Semantic */
  --color-success: #16a34a;
  --color-success-bg: #f0fdf4;
  --color-success-border: #bbf7d0;
  --color-danger: #dc2626;
  --color-danger-bg: #fef2f2;
  --color-danger-border: #fecaca;
  --color-warning: #d97706;
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;
  --color-info: #0284c7;
  --color-info-bg: #f0f9ff;
  --color-info-border: #bae6fd;

  /* Neutral */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);

  /* Spacing scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Playfair Display", Georgia, serif;
  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.9375rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  /* Sidebar */
  --sidebar-width: 260px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* ── Base ──────────────────────────────────── */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Typography ────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-text);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h1 {
  font-size: var(--text-4xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  color: #334155;
  margin-bottom: var(--space-sm);
}

h4, h5, h6 {
  font-size: var(--text-lg);
  font-weight: 600;
  color: #475569;
  margin-bottom: var(--space-sm);
}

p {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

/* ── Layout Helpers ────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.page {
  display: none;
  min-height: 100vh;
}

.page.active {
  display: block;
  animation: fadeIn 0.35s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Card ──────────────────────────────────── */
.glass-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-xl);
  transition: box-shadow var(--transition-base);
}

.glass-card:hover {
  box-shadow: var(--shadow-md);
}

.classic-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-xl);
  max-width: 500px;
  width: 90%;
  margin: 0 auto;
  text-align: center;
}

/* ── Header (Landing) ──────────────────────── */
.header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.logo {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  object-fit: contain;
}

.logo-text h1 {
  font-size: var(--text-xl);
  font-family: var(--font-sans);
  font-weight: 700;
  margin-bottom: 0;
  color: var(--color-text);
  background: none;
  -webkit-text-fill-color: unset;
}

.logo-text p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* ── Hero ──────────────────────────────────── */
.hero-section {
  padding: var(--space-2xl) 0;
}

.hero-content {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.hero-content h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.hero-content p {
  font-size: var(--text-lg);
  max-width: 560px;
  margin: 0 auto var(--space-lg);
  color: var(--color-text-secondary);
}

/* ── Login ─────────────────────────────────── */
.login-card {
  max-width: 400px;
  margin: 0 auto;
  padding: var(--space-xl);
}

.button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 12px 24px;
  border: 1px solid #dadce0;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: #3c4043;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.button:hover {
  background-color: #f8f9fa;
  box-shadow: var(--shadow-md);
}

.button:active {
  background-color: #eeeeee;
}

.svg {
  height: 18px;
  width: 18px;
}

.button .text {
  font-weight: 500;
}

.login-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

/* ── Features Grid ─────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.feature-card {
  padding: var(--space-xl);
  text-align: center;
  cursor: default;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.feature-card h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

/* ── Dashboard ─────────────────────────────── */
.dashboard-header {
  margin-bottom: var(--space-xl);
}

.dashboard-header h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-xs);
}

.dashboard-header p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.dashboard-grid,
.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.dashboard-card {
  padding: var(--space-lg);
}

.card-header {
  margin-bottom: var(--space-md);
}

.card-header h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.card-header p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.card-content {
  margin-top: var(--space-md);
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
  font-size: var(--text-base);
}

/* ── Admin Lists ───────────────────────────── */
.category-list,
.room-type-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.category-item,
.room-type-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-size: var(--text-sm);
  gap: var(--space-md);
  flex-wrap: wrap;
}

.category-actions,
.room-type-actions {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* ── Buttons ───────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 40px;
}

.btn:active {
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Primary */
.btn.primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn.primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}

/* Secondary */
.btn.secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn.secondary:hover {
  background: #f1f5f9;
  border-color: var(--color-border-hover);
}

/* Remove */
.btn.remove {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}

.btn.remove:hover {
  background: #fee2e2;
}

/* Sizes */
.btn.small {
  padding: 6px 14px;
  font-size: var(--text-xs);
  min-height: 32px;
}

.btn.large {
  padding: 14px 28px;
  font-size: var(--text-base);
  min-height: 48px;
  width: 100%;
}

.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Sidebar ───────────────────────────────── */
.app-layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

.app-sidebar {
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  position: fixed;
  height: 100vh;
  height: 100dvh;
  top: 0;
  left: 0;
  z-index: 100;
  transition: transform var(--transition-slow);
  overflow-y: auto;
}

.app-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: var(--space-xl);
  min-height: 100vh;
  overflow-y: auto;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.sidebar-title h2 {
  font-size: var(--text-lg);
  font-family: var(--font-sans);
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
}

.role-badge {
  font-size: var(--text-xs);
  padding: 2px 10px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  display: inline-block;
  font-weight: 600;
  margin-top: 2px;
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  min-height: 0;
}

.nav-group:last-child {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  background: var(--color-primary-muted);
  color: var(--color-primary);
}

.nav-link.active {
  background: var(--color-primary-muted);
  color: var(--color-primary);
  font-weight: 600;
}

.nav-svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  flex-shrink: 0;
}

.feature-svg {
  width: 40px;
  height: 40px;
  fill: var(--color-primary);
}

.logout-link {
  color: var(--color-danger) !important;
}

.logout-link:hover {
  background: var(--color-danger-bg) !important;
  color: var(--color-danger) !important;
}

.logout-link svg {
  fill: var(--color-danger);
}

.sidebar-close-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-xs);
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.sidebar-close-btn:hover {
  background: #f1f5f9;
}

.sidebar-close-btn svg {
  width: 20px;
  height: 20px;
}

/* Sidebar overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: 999;
}

/* Mobile header bar */
.mobile-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 12px var(--space-md);
  position: sticky;
  top: 0;
  z-index: 900;
  margin: -32px -32px var(--space-lg) -32px;
}

.hamburger-btn {
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--space-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.hamburger-btn:hover {
  background: #f1f5f9;
}

.hamburger-btn svg {
  width: 24px;
  height: 24px;
}

.mobile-title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
}

/* ── Content Sections ──────────────────────── */
.content-section {
  display: none;
}

.content-section.active {
  display: block;
}

/* ── Forms ─────────────────────────────────── */
.preferences-form {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-xl);
}

.preferences-form .card-header {
  margin-bottom: var(--space-xl);
}

.preferences-form .card-header h2 {
  font-size: var(--text-2xl);
  font-family: var(--font-sans);
  margin-bottom: var(--space-xs);
}

.preferences-form .card-header p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-weight: 600;
  font-size: var(--text-sm);
  color: #334155;
  font-family: var(--font-sans);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 42px;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--color-border-hover);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.08);
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
}

.form-select {
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* ── Tables ────────────────────────────────── */
.table-container {
  overflow-x: auto;
  margin-top: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  width: 100%;
}

.modern-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.modern-table th,
.modern-table td {
  padding: 12px 16px;
  font-size: var(--text-sm);
  white-space: nowrap;
}

.modern-table th {
  background: #f8fafc;
  color: var(--color-text);
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--color-border);
}

.modern-table tr {
  border-bottom: 1px solid var(--color-border);
}

.modern-table tr:last-child {
  border-bottom: none;
}

.modern-table td {
  color: var(--color-text-secondary);
}

.modern-table tr:hover {
  background: #f8fafc;
}

/* ── Badges ────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
}

.badge.complete {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}

.badge.incomplete {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}

.badge.outline {
  background: #f8fafc;
  color: #475569;
  border: 1px solid var(--color-border);
}

.badge.info {
  background: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
}

.badge.warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid var(--color-warning-border);
}

/* ── Search ────────────────────────────────── */
.search-wrapper {
  margin-bottom: var(--space-md);
  display: flex;
  gap: var(--space-sm);
}

.search-input {
  flex: 1;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ── Modal ─────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: var(--space-md);
}

.modal-content {
  position: relative;
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-size: var(--text-xl);
  cursor: pointer;
  color: var(--color-text-muted);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  line-height: 1;
}

.modal-close:hover {
  background: #f1f5f9;
  color: var(--color-text);
}

.modal-body h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
}

.modal-body p {
  margin-bottom: var(--space-sm);
}

/* ── Messages ──────────────────────────────── */
.error-message {
  padding: 12px 16px;
  background: var(--color-danger-bg);
  border: 1px solid var(--color-danger-border);
  border-radius: var(--radius-md);
  color: var(--color-danger);
  font-size: var(--text-sm);
  margin: var(--space-sm) 0;
}

.info-message {
  padding: 12px 16px;
  background: var(--color-info-bg);
  border: 1px solid var(--color-info-border);
  border-radius: var(--radius-md);
  color: var(--color-info);
  font-size: var(--text-sm);
  margin: var(--space-sm) 0;
}

.message-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.message-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.message-item:last-child {
  border-bottom: none;
}

/* ── Allotment Results ─────────────────────── */
.results-list {
  max-height: 500px;
  overflow-y: auto;
}

/* ── Matches ───────────────────────────────── */
.matches-section {
  margin-top: var(--space-xl);
}

.matches-section h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-lg);
}

.matches-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.match-card {
  padding: var(--space-lg);
}

.match-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
  gap: var(--space-sm);
}

.match-header h4 {
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.2;
}

.compatibility-badge {
  padding: 4px 12px;
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  white-space: nowrap;
}

.match-info {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.match-details {
  margin-bottom: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.detail-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  padding: var(--space-sm) var(--space-md);
  background: #f8fafc;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.detail-item:hover {
  background: #f1f5f9;
}

.match-actions {
  display: flex;
  gap: var(--space-sm);
}

.hobbies {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.icon {
  opacity: 0.6;
}

/* ── Responsive: Tablets (≤ 992px) ─────────── */
@media (max-width: 992px) {
  .app-sidebar {
    width: 240px;
  }

  .app-content {
    margin-left: 240px;
    padding: var(--space-lg);
  }

  .features-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
}

/* ── Responsive: Mobile (≤ 768px) ──────────── */
@media (max-width: 768px) {
  /* Sidebar becomes a drawer */
  .app-layout {
    flex-direction: column;
  }

  .app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    height: 100dvh;
    transform: translateX(-100%);
    z-index: 1000;
    box-shadow: var(--shadow-xl);
    background: var(--color-surface);
    overflow-y: auto;
    overflow-x: hidden;
  }

  .app-sidebar.mobile-open {
    transform: translateX(0);
  }

  .sidebar-close-btn {
    display: flex;
  }

  .app-content {
    margin-left: 0;
    padding: var(--space-md);
  }

  .mobile-header {
    display: flex;
    margin: calc(-1 * var(--space-md)) calc(-1 * var(--space-md)) var(--space-lg) calc(-1 * var(--space-md));
  }

  /* Layout */
  .container {
    padding: 0 var(--space-md);
  }

  .glass-card {
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    max-width: 100%;
  }

  .preferences-form {
    padding: var(--space-lg);
    max-width: 100%;
  }

  .dashboard-grid,
  .admin-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-content h2 {
    font-size: var(--text-2xl);
  }

  .hero-content p {
    font-size: var(--text-base);
  }

  .dashboard-header h2,
  .dashboard-header p {
    padding: 0;
  }

  /* Category / Room actions stack on mobile */
  .category-item,
  .room-type-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .category-actions,
  .room-type-actions {
    width: 100%;
  }

  .category-actions .btn,
  .room-type-actions .btn {
    flex: 1;
  }

  .match-header {
    flex-direction: column;
    gap: var(--space-sm);
    align-items: flex-start;
  }

  .match-actions {
    flex-wrap: wrap;
  }

  /* Header stacks on mobile */
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .logo-section {
    justify-content: center;
  }

  /* Buttons */
  .btn {
    min-height: 40px;
    padding: 11px 22px;
  }

  .btn.large {
    min-height: 44px;
    padding: 14px 28px;
  }
}

/* ── Responsive: Small phones (≤ 480px) ────── */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-sm);
  }

  h1 { font-size: var(--text-2xl); }
  h2 { font-size: var(--text-xl); }
  h3 { font-size: var(--text-lg); }

  .hero-content h2 {
    font-size: var(--text-xl);
  }

  .hero-content p {
    font-size: var(--text-sm);
  }

  .glass-card,
  .login-card,
  .preferences-form,
  .dashboard-card,
  .feature-card,
  .match-card {
    padding: var(--space-md);
  }

  .classic-card {
    padding: var(--space-lg);
  }

  .modal-content {
    padding: var(--space-md);
  }

  .btn {
    padding: 10px 18px;
    font-size: var(--text-xs);
    min-height: 36px;
  }

  .btn.small {
    padding: 8px 14px;
    font-size: var(--text-xs);
    min-height: 30px;
  }

  .btn.large {
    padding: 13px 24px;
    font-size: var(--text-sm);
    min-height: 42px;
  }

  .form-input,
  .form-select,
  .form-textarea {
    padding: 9px 12px;
    font-size: var(--text-sm);
    min-height: 40px;
  }

  .form-group label {
    font-size: var(--text-xs);
  }

  .form-textarea {
    min-height: 80px;
  }

  .modern-table th,
  .modern-table td {
    padding: 10px 12px;
    font-size: var(--text-xs);
  }

  .nav-link {
    padding: 8px 12px;
    font-size: var(--text-sm);
  }

  .features-grid {
    gap: var(--space-md);
  }

  .feature-card h3 {
    font-size: var(--text-base);
  }

  .feature-card p {
    font-size: var(--text-xs);
  }

  .logo {
    width: 36px;
    height: 36px;
  }

  .logo-text h1 {
    font-size: var(--text-base);
  }

  .logo-text p {
    font-size: 0.65rem;
  }
}
/* ------------------------------------------------------------------ */
/* Redesigned components (room types config, lock & allot, results)    */
/* ------------------------------------------------------------------ */

.locked-banner {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  border: 1px solid #f59e0b;
  color: #78350f;
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 20px;
  font-size: 0.95rem;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.15);
}

.room-type-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border-color, rgba(0,0,0,0.08));
  border-radius: 12px;
  margin-bottom: 10px;
  background: rgba(255, 255, 255, 0.7);
}

.room-type-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.room-type-meta {
  font-size: 0.82rem;
  color: #64748b;
}

.room-type-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.room-total-label {
  display: flex;
  flex-direction: column;
  font-size: 0.78rem;
  color: #64748b;
  gap: 4px;
}

.room-total-input {
  width: 90px;
  padding: 6px 8px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 8px;
}

.room-type-results-block {
  border: 1px solid var(--border-color, rgba(0,0,0,0.1));
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.65);
}

.room-type-results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 16px;
  background: rgba(26, 82, 118, 0.06);
  border-bottom: 1px solid var(--border-color, rgba(0,0,0,0.08));
  font-size: 1rem;
}

.room-type-results-block .modern-table {
  margin: 0;
  border: none;
}

.room-type-results-block .modern-table th,
.room-type-results-block .modern-table td {
  padding: 8px 16px;
}

.unallotted-block {
  border-left: 4px solid #ef4444;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.lock-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

/* ------------------------------------------------------------------ */
/* Room Types management redesign                                      */
/* ------------------------------------------------------------------ */

.room-config-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
}

.room-config-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.room-types-table th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #64748b;
}

.room-types-table td {
  vertical-align: middle;
  padding: 10px 12px;
}

.room-edit-input {
  width: 76px;
  padding: 6px 8px;
  border: 1px solid rgba(0, 0, 0, 0.14);
  border-radius: 8px;
  font-size: 0.9rem;
  background: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.room-edit-input:focus {
  outline: none;
  border-color: var(--color-primary, #2563eb);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.room-edit-input:disabled {
  background: #f1f5f9;
  color: #94a3b8;
}

.add-room-type-panel {
  margin-top: 26px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  padding-top: 20px;
}

.add-room-type-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.add-room-type-title h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-color, #1e293b);
  margin: 0;
}

.add-room-type-title .room-type-meta {
  font-size: 0.82rem;
  color: #64748b;
}

.room-add-btn-col {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.room-add-btn-col .btn {
  width: 100%;
  min-height: 42px;
  white-space: nowrap;
}

/* ------------------------------------------------------------------ */
/* Toasts + confirm dialogs                                            */
/* ------------------------------------------------------------------ */

.toast-container {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: min(380px, calc(100vw - 36px));
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-left-width: 4px;
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
  font-size: 0.9rem;
  color: var(--color-text);
  animation: toast-in 0.25s ease;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast-success { border-left-color: #16a34a; }
.toast-error   { border-left-color: #dc2626; }
.toast-warning { border-left-color: #f59e0b; }
.toast-info    { border-left-color: #2563eb; }

.toast-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-top: 1px;
}

.toast-icon svg {
  width: 14px;
  height: 14px;
  display: block;
}

.toast-success .toast-icon { background: #16a34a; }
.toast-error   .toast-icon { background: #dc2626; }
.toast-warning .toast-icon { background: #f59e0b; }
.toast-info    .toast-icon { background: #2563eb; }

.toast-msg {
  flex: 1;
  line-height: 1.45;
}

.toast-close {
  border: none;
  background: transparent;
  color: #94a3b8;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
}

.toast-close:hover { color: #475569; }

.toast-out {
  opacity: 0;
  transform: translateX(12px);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(16px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Confirm dialog ───────────────────────── */
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 400;
  padding: 20px;
  animation: fade-in 0.18s ease;
}

.confirm-dialog {
  width: min(460px, 100%);
  background: #fff;
  border-radius: 16px;
  padding: 26px 26px 22px;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.25);
  animation: dialog-in 0.22s ease;
}

.confirm-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(37, 99, 235, 0.1);
  color: #2563eb;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.confirm-icon svg {
  width: 26px;
  height: 26px;
  display: block;
}

.confirm-icon-danger {
  background: rgba(220, 38, 38, 0.1);
  color: #dc2626;
}

/* SVG icon sizing (sprite symbols in index.html) */
svg.icon-svg {
  width: 1.05em;
  height: 1.05em;
  vertical-align: -0.15em;
  margin-right: 6px;
}

.btn svg {
  width: 16px;
  height: 16px;
  vertical-align: -3px;
  margin-right: 6px;
}

.confirm-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-color, #1e293b);
  margin-bottom: 10px;
  font-family: "Poppins", sans-serif;
}

.confirm-message {
  font-size: 0.92rem;
  color: #475569;
  line-height: 1.55;
}

.confirm-message p { margin-bottom: 10px; }

.confirm-list {
  margin: 10px 0 12px;
  padding-left: 20px;
  color: #475569;
}

.confirm-list li {
  margin-bottom: 6px;
}

.confirm-summary-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.9rem;
}

.confirm-summary-table td {
  padding: 8px 12px;
  border-bottom: 1px solid #eef2f7;
}

.confirm-summary-table td:last-child {
  text-align: right;
  color: var(--text-color, #1e293b);
}

.confirm-note {
  font-size: 0.82rem;
  color: #64748b;
  background: #f8fafc;
  border-radius: 8px;
  padding: 10px 12px;
}

.confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

.confirm-actions .btn {
  min-width: 110px;
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes dialog-in {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ================================================================== */
/* Permanent Velvet Dark Theme                                         */
/* ================================================================== */

:root {
  color-scheme: dark;

  /* Brand — indigo-violet accent on deep velvet plum-navy */
  --color-primary: #7c6cf0;
  --color-primary-hover: #9485f6;
  --color-primary-light: #2a2354;
  --color-primary-muted: rgba(124, 108, 240, 0.16);

  /* Semantic */
  --color-success: #34d399;
  --color-success-bg: rgba(52, 211, 153, 0.13);
  --color-success-border: rgba(52, 211, 153, 0.35);
  --color-danger: #fb7185;
  --color-danger-bg: rgba(251, 113, 133, 0.13);
  --color-danger-border: rgba(251, 113, 133, 0.35);
  --color-warning: #fbbf24;
  --color-warning-bg: rgba(251, 191, 36, 0.13);
  --color-warning-border: rgba(251, 191, 36, 0.35);
  --color-info: #38bdf8;
  --color-info-bg: rgba(56, 189, 248, 0.13);
  --color-info-border: rgba(56, 189, 248, 0.35);

  /* Neutral — deep velvet plum-navy */
  --color-bg: #0c0a1d;
  --color-surface: #16122e;
  --color-surface-hover: #221b42;
  --color-border: #2c2450;
  --color-border-hover: #413469;
  --color-text: #f1ecfb;
  --color-text-secondary: #c9bfe6;
  --color-text-muted: #968abf;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.55);
  --shadow-xl: 0 24px 52px rgba(0, 0, 0, 0.6);
}

body {
  background: var(--color-bg);
}

h3, h4, h5, h6 {
  color: var(--color-text);
}

.form-group label {
  color: var(--color-text-secondary);
}

/* Select chevron tuned for the dark background */
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23968abf' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

/* Tables */
.modern-table th {
  background: #1e1838;
}

.modern-table tr:hover {
  background: #1e1838;
}

.badge.outline {
  background: #1e1838;
  color: var(--color-text-secondary);
}

/* Buttons */
.btn.secondary {
  background: var(--color-surface);
}

.btn.secondary:hover {
  background: var(--color-surface-hover);
}

.btn.remove:hover {
  background: rgba(251, 113, 133, 0.22);
}

/* Google button (landing) */
.button {
  border-color: #413469;
  color: var(--color-text);
}

.button:hover {
  background-color: var(--color-surface-hover);
}

.button:active {
  background-color: #241d45;
}

/* Sidebar close + modal close hovers */
.sidebar-close-btn:hover,
.modal-close:hover {
  background: var(--color-surface-hover);
}

/* Track-preferences detail chips */
.detail-item {
  background: #1e1838;
}

.detail-item:hover {
  background: #271f4d;
}

/* Room management */
.room-type-item {
  background: rgba(22, 18, 46, 0.75);
  border-color: var(--color-border);
}

.room-type-results-block {
  background: rgba(22, 18, 46, 0.7);
  border-color: var(--color-border);
}

.room-type-results-header {
  background: rgba(124, 108, 240, 0.1);
  border-bottom-color: var(--color-border);
}

.room-total-label,
.room-type-meta {
  color: var(--color-text-muted);
}

.room-edit-input,
.room-total-input {
  background: #0f0c22;
  border-color: #413469;
  color: var(--color-text);
}

.room-edit-input::placeholder {
  color: var(--color-text-muted);
}

.add-room-type-panel {
  border-top-color: var(--color-border);
}

.add-room-type-title h4 {
  color: var(--color-text);
}

/* Locked banner — dark amber */
.locked-banner {
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.16), rgba(251, 146, 60, 0.12));
  border-color: rgba(251, 191, 36, 0.4);
  color: #fcd34d;
}

/* Toasts */
.toast {
  background: #1d1739;
  border-color: #332a5c;
}

/* Confirm dialog */
.confirm-dialog {
  background: #1d1739;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.confirm-icon {
  background: rgba(124, 108, 240, 0.16);
}

.confirm-icon-danger {
  background: rgba(251, 113, 133, 0.16);
}

.confirm-icon {
  color: #a5b4fc;
}

.confirm-icon-danger {
  color: #fda4af;
}

.confirm-title,
.confirm-summary-table td:last-child {
  color: var(--color-text);
}

.confirm-list {
  color: var(--color-text-secondary);
}

.confirm-message {
  color: var(--color-text-secondary);
}

.confirm-summary-table td {
  border-bottom-color: #332a5c;
}

.confirm-note {
  background: #241d45;
  color: var(--color-text-muted);
}

.toast-close {
  color: var(--color-text-muted);
}

.toast-close:hover {
  color: var(--color-text);
}

/* Misc */
.login-note {
  color: var(--color-text-muted);
}