/* ============================================
   GoStay Design System — CSS Custom Properties
   Adapted from Meridian Dashboard Design
   ============================================ */
:root {
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-7: 28px; --space-8: 32px;
  --radius-sm: 6px; --radius-md: 8px; --radius-lg: 12px;
  --radius-xl: 16px; --radius-2xl: 24px; --radius-full: 9999px;
  --transition-fast: 150ms ease; --transition-base: 200ms ease;
  --transition-slow: 300ms ease; --transition-theme: 350ms ease;
  --transition-premium: 400ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --z-base: 0; --z-sticky: 10; --z-topbar: 30; --z-sidebar: 40;
  --z-overlay: 50; --z-modal: 60; --z-toast: 70;
  --sidebar-width: 260px; --sidebar-collapsed-width: 72px;
  --color-blue: #3B82F6; --color-green: #10B981; --color-amber: #F59E0B;
  --color-rose: #F43F5E; --color-teal: #14B8A6; --color-purple: #8B5CF6;
}

/* DARK THEME */
[data-theme="dark"] {
  --color-page-bg: #060912; --color-app-bg: #0C1120;
  --color-wrapper-bg: rgba(10, 14, 24, 0.65);
  --color-main-bg: rgba(12, 17, 28, 0.6);
  --color-card-bg: rgba(18, 24, 38, 0.55);
  --color-card-hover: rgba(24, 32, 50, 0.65);
  --color-input-bg: rgba(18, 24, 40, 0.55);
  --color-sidebar-bg: rgba(8, 12, 22, 0.5);
  --color-topbar-bg: rgba(10, 14, 26, 0.4);
  --color-border: rgba(100, 120, 160, 0.15);
  --color-border-subtle: rgba(80, 100, 140, 0.1);
  --color-text-primary: #F1F5F9; --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  --color-active-bg: rgba(30, 40, 60, 0.6);
  --color-hover-bg: rgba(255,255,255,0.06);
  --color-card-shadow: 0 4px 24px rgba(0,0,0,0.3);
  --color-skeleton: #1A2236; --color-skeleton-shine: #232D45;
  --color-scrollbar-thumb: rgba(80, 100, 130, 0.35);
  --color-card-glow: rgba(59, 130, 246, 0.12);
  --color-active-glow: rgba(59, 130, 246, 0.2);
  --color-glass-highlight: rgba(255, 255, 255, 0.08);
}

/* LIGHT THEME */
[data-theme="light"] {
  --color-page-bg: #C8DDFB; --color-app-bg: #A8C8F8;
  --color-wrapper-bg: rgba(240, 244, 250, 0.6);
  --color-main-bg: rgba(250, 252, 255, 0.65);
  --color-card-bg: rgba(255, 255, 255, 0.55);
  --color-card-hover: rgba(255, 255, 255, 0.7);
  --color-input-bg: rgba(255, 255, 255, 0.6);
  --color-sidebar-bg: rgba(238, 242, 250, 0.45);
  --color-topbar-bg: rgba(240, 244, 250, 0.35);
  --color-border: rgba(140, 165, 200, 0.3);
  --color-border-subtle: rgba(170, 190, 220, 0.22);
  --color-text-primary: #0F172A; --color-text-secondary: #334155;
  --color-text-muted: #475569;
  --color-active-bg: rgba(255, 255, 255, 0.8);
  --color-hover-bg: rgba(15,23,42,0.05);
  --color-card-shadow: 0 4px 20px rgba(0,0,0,0.06), 0 0 1px rgba(0,0,0,0.08);
  --color-skeleton: #E2E8F0; --color-skeleton-shine: #F1F5F9;
  --color-scrollbar-thumb: rgba(100, 120, 155, 0.35);
  --color-card-glow: rgba(59, 130, 246, 0.08);
  --color-active-glow: rgba(59, 130, 246, 0.14);
  --color-glass-highlight: rgba(255, 255, 255, 0.6);
}

/* RESET */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; scroll-behavior: smooth; }
button, input, select, textarea { font-family: inherit; }
body { font-family: var(--font-sans); background: var(--color-app-bg); min-height: 100vh; transition: background-color var(--transition-theme); overflow-x: hidden; }
::selection { background: var(--color-blue); color: #fff; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-scrollbar-thumb); border-radius: var(--radius-full); }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ============================================
   FLUID GRADIENT
   ============================================ */
.fluid-gradient {
  position: fixed; inset: -60%; width: 220%; height: 220%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 40% 35% at 20% 25%, rgba(59,130,246,0.45), transparent 55%),
    radial-gradient(ellipse 35% 40% at 80% 70%, rgba(139,92,246,0.35), transparent 50%),
    radial-gradient(ellipse 45% 30% at 50% 50%, rgba(16,185,129,0.2), transparent 50%),
    radial-gradient(ellipse 30% 35% at 70% 20%, rgba(244,63,94,0.15), transparent 45%);
  animation: fluidMove 18s ease-in-out infinite; will-change: transform;
}
[data-theme="light"] .fluid-gradient {
  background:
    radial-gradient(ellipse 40% 35% at 20% 25%, rgba(59,130,246,0.3), transparent 55%),
    radial-gradient(ellipse 35% 40% at 80% 70%, rgba(139,92,246,0.22), transparent 50%),
    radial-gradient(ellipse 45% 30% at 50% 50%, rgba(16,185,129,0.15), transparent 50%);
}
@keyframes fluidMove {
  0%, 100% { transform: translate(0,0) rotate(0deg) scale(1); }
  25% { transform: translate(8%,-6%) rotate(3deg) scale(1.02); }
  50% { transform: translate(-5%,8%) rotate(-2deg) scale(0.98); }
  75% { transform: translate(-8%,-4%) rotate(4deg) scale(1.03); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .fluid-gradient { animation: none !important; }
}

/* ============================================
   LAYOUT — APP SHELL
   ============================================ */
.app-shell { position: relative; z-index: 1; min-height: 100vh; display: flex; flex-direction: column; }

/* TOPBAR */
.topbar {
  height: 64px; padding: 0 var(--space-6); display: flex; align-items: center;
  justify-content: space-between; flex-shrink: 0;
  background: var(--color-topbar-bg); backdrop-filter: blur(28px) saturate(1.3);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: background-color var(--transition-theme); position: sticky; top: 0; z-index: var(--z-topbar);
}
.topbar-brand { display: flex; align-items: center; gap: var(--space-3); }
.topbar-brand-logo { width: 28px; height: 28px; background: linear-gradient(135deg, var(--color-blue), var(--color-purple)); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; }
.topbar-brand-logo svg { width: 16px; height: 16px; color: #fff; }
.topbar-brand-name { font-size: 18px; font-weight: 700; color: var(--color-text-primary); }
.topbar-brand-name span { background: linear-gradient(135deg, var(--color-blue), var(--color-purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.topbar-right { display: flex; align-items: center; gap: var(--space-3); }
.topbar-nav { display: flex; align-items: center; gap: var(--space-2); }
.topbar-nav a { padding: var(--space-2) var(--space-4); border-radius: var(--radius-md); font-size: 14px; font-weight: 500; color: var(--color-text-secondary); transition: all var(--transition-base); }
.topbar-nav a:hover { color: var(--color-text-primary); background: var(--color-hover-bg); }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); padding: var(--space-2) var(--space-5); border-radius: var(--radius-lg); font-size: 14px; font-weight: 600; border: none; cursor: pointer; transition: all var(--transition-base); white-space: nowrap; }
.btn-primary { background: var(--color-blue); color: #fff; }
.btn-primary:hover { background: #2563EB; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(59,130,246,0.3); }
.btn-secondary { background: transparent; color: var(--color-text-secondary); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: var(--color-hover-bg); color: var(--color-text-primary); border-color: var(--color-blue); }
.btn-sm { padding: var(--space-1) var(--space-3); font-size: 13px; }
.btn-lg { padding: var(--space-3) var(--space-7); font-size: 16px; }
.btn-danger { background: var(--color-rose); color: #fff; }
.btn-danger:hover { background: #E11D48; }
.btn-success { background: var(--color-green); color: #fff; }
.btn-success:hover { background: #059669; }
.btn-ghost { background: transparent; color: var(--color-text-muted); }
.btn-ghost:hover { color: var(--color-text-primary); background: var(--color-hover-bg); }

/* ICON BUTTON */
.icon-btn { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; background: none; border: none; border-radius: var(--radius-md); cursor: pointer; color: var(--color-text-muted); transition: all var(--transition-base); position: relative; }
.icon-btn:hover { color: var(--color-text-primary); background: var(--color-hover-bg); }
.icon-btn svg { width: 20px; height: 20px; }

/* NOTIFICATION DOT */
.notif-dot { position: absolute; top: 6px; right: 6px; width: 8px; height: 8px; background: var(--color-amber); border-radius: 50%; border: 2px solid var(--color-topbar-bg); animation: pulse 2.5s ease-in-out infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(245,158,11,0.4); } 50% { box-shadow: 0 0 0 4px rgba(245,158,11,0); } }

/* USER MENU */
.user-menu { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-1) var(--space-2) var(--space-1) var(--space-4); border-left: 1px solid var(--color-border); cursor: pointer; border-radius: var(--radius-lg); transition: background var(--transition-base); }
.user-menu:hover { background: var(--color-hover-bg); }
.user-avatar { width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--color-blue), var(--color-purple)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 13px; font-weight: 700; flex-shrink: 0; }
.user-name { font-size: 14px; font-weight: 500; color: var(--color-text-primary); }

/* ============================================
   SIDEBAR (Dashboard)
   ============================================ */
.layout-dashboard { display: flex; min-height: calc(100vh - 64px); }
.sidebar {
  width: var(--sidebar-width); min-width: var(--sidebar-width); background: var(--color-sidebar-bg);
  backdrop-filter: blur(32px) saturate(1.4); padding: var(--space-6);
  display: flex; flex-direction: column; justify-content: space-between;
  border-right: 1px solid var(--color-border-subtle); overflow-y: auto; overflow-x: hidden;
  transition: all var(--transition-premium); position: sticky; top: 64px; height: calc(100vh - 64px);
}
.nav-category { font-size: 11px; font-weight: 600; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.06em; padding: 0 var(--space-3); margin-bottom: var(--space-2); margin-top: var(--space-5); }
.nav-category:first-child { margin-top: 0; }
.nav-group { display: flex; flex-direction: column; gap: 2px; }
.nav-item { display: flex; align-items: center; justify-content: space-between; height: 40px; padding: 0 var(--space-3); border-radius: var(--radius-lg); font-size: 14px; font-weight: 500; color: var(--color-text-secondary); cursor: pointer; transition: all var(--transition-base); position: relative; }
.nav-item:hover { background: var(--color-hover-bg); color: var(--color-text-primary); }
.nav-item.active { background: var(--color-active-bg); color: var(--color-text-primary); font-weight: 600; }
[data-theme="dark"] .nav-item.active { background: linear-gradient(135deg, rgba(59,130,246,0.12), rgba(59,130,246,0.06)); box-shadow: inset 0 0 0 1px rgba(59,130,246,0.15); }
.nav-item-left { display: flex; align-items: center; gap: var(--space-3); }
.nav-item svg { width: 20px; height: 20px; color: var(--color-text-muted); flex-shrink: 0; }
.nav-item:hover svg { color: var(--color-text-secondary); }
.nav-item.active svg { color: var(--color-blue); }
.nav-badge { min-width: 22px; height: 22px; display: flex; align-items: center; justify-content: center; background: var(--color-blue); color: #fff; font-size: 11px; font-weight: 600; border-radius: var(--radius-full); padding: 0 6px; }

/* MAIN CONTENT */
.main-content { flex: 1; padding: var(--space-6); min-width: 0; }
.page-title { font-size: 24px; font-weight: 700; color: var(--color-text-primary); margin-bottom: var(--space-6); }
.page-title em { font-style: normal; background: linear-gradient(135deg, var(--color-blue), var(--color-purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-card-bg); backdrop-filter: blur(20px) saturate(1.25);
  border: 1px solid var(--color-border); border-radius: var(--radius-xl);
  padding: var(--space-6); position: relative; overflow: hidden;
  transition: all var(--transition-premium); box-shadow: var(--color-card-shadow);
}
.card::after { content: ''; position: absolute; top: 0; left: 16px; right: 16px; height: 1px; background: linear-gradient(90deg, transparent, var(--color-glass-highlight), transparent); pointer-events: none; z-index: 5; }
.card:hover { transform: translateY(-2px); }
[data-theme="dark"] .card:hover { box-shadow: 0 12px 44px rgba(0,0,0,0.35), 0 0 0 1px var(--color-card-glow); border-color: rgba(59,130,246,0.2); }
[data-theme="light"] .card:hover { box-shadow: 0 12px 36px rgba(0,0,0,0.06), 0 2px 10px rgba(59,130,246,0.06); border-color: rgba(59,130,246,0.22); }
.card-title { font-size: 16px; font-weight: 600; color: var(--color-text-primary); margin-bottom: var(--space-4); }
.card-no-hover:hover { transform: none; }

/* STAT CARD */
.stat-card { display: flex; flex-direction: column; gap: var(--space-2); }
.stat-value { font-size: 32px; font-weight: 700; color: var(--color-text-primary); line-height: 1.1; letter-spacing: -0.02em; }
.stat-label { font-size: 12px; font-weight: 500; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-icon { width: 44px; height: 44px; border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; margin-bottom: var(--space-3); }
.stat-icon svg { width: 22px; height: 22px; }
.stat-icon.blue { background: rgba(59,130,246,0.12); color: var(--color-blue); }
.stat-icon.green { background: rgba(16,185,129,0.12); color: var(--color-green); }
.stat-icon.amber { background: rgba(245,158,11,0.12); color: var(--color-amber); }
.stat-icon.rose { background: rgba(244,63,94,0.12); color: var(--color-rose); }
.stat-icon.purple { background: rgba(139,92,246,0.12); color: var(--color-purple); }

/* BADGE */
.badge { display: inline-flex; align-items: center; gap: 3px; padding: 3px 8px; border-radius: var(--radius-sm); font-size: 12px; font-weight: 600; }
.badge-green { background: rgba(16,185,129,0.12); color: #10B981; }
.badge-red { background: rgba(244,63,94,0.12); color: #F43F5E; }
.badge-amber { background: rgba(245,158,11,0.12); color: #F59E0B; }
.badge-blue { background: rgba(59,130,246,0.12); color: #3B82F6; }
.badge-purple { background: rgba(139,92,246,0.12); color: #8B5CF6; }

/* GRIDS */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); margin-bottom: var(--space-6); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }

/* ============================================
   FORMS
   ============================================ */
.form-group { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.form-label { font-size: 13px; font-weight: 600; color: var(--color-text-secondary); }
.form-input, .form-select, .form-textarea {
  width: 100%; height: 40px; padding: 0 var(--space-4);
  background: var(--color-input-bg); backdrop-filter: blur(12px);
  color: var(--color-text-primary); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); font-size: 14px; outline: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--color-blue); box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
.form-input::placeholder { color: var(--color-text-muted); }
.form-textarea { height: auto; min-height: 80px; padding: var(--space-3) var(--space-4); resize: vertical; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }
.form-row { display: flex; gap: var(--space-4); }
.form-row > * { flex: 1; }
.form-error { font-size: 12px; color: var(--color-rose); margin-top: var(--space-1); }

/* ============================================
   TABLE
   ============================================ */
.table-wrapper { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; padding: var(--space-3) var(--space-4); font-size: 12px; font-weight: 600; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; background: var(--color-sidebar-bg); border-bottom: 1px solid var(--color-border); white-space: nowrap; }
.table td { padding: var(--space-3) var(--space-4); color: var(--color-text-secondary); border-bottom: 1px solid var(--color-border-subtle); }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--color-hover-bg); }
.table .text-right { text-align: right; }
.table .text-center { text-align: center; }

/* ============================================
   MODAL
   ============================================ */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); z-index: var(--z-modal); display: flex; align-items: center; justify-content: center; padding: var(--space-4); opacity: 0; visibility: hidden; transition: all var(--transition-base); }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal { background: var(--color-card-bg); backdrop-filter: blur(20px) saturate(1.3); border: 1px solid var(--color-border); border-radius: var(--radius-xl); width: 100%; max-width: 520px; max-height: 90vh; overflow-y: auto; transform: scale(0.95) translateY(10px); transition: transform var(--transition-premium); }
.modal-overlay.active .modal { transform: scale(1) translateY(0); }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--color-border-subtle); }
.modal-title { font-size: 18px; font-weight: 600; color: var(--color-text-primary); }
.modal-body { padding: var(--space-6); }
.modal-footer { display: flex; justify-content: flex-end; gap: var(--space-3); padding: var(--space-4) var(--space-6); border-top: 1px solid var(--color-border-subtle); }

/* ============================================
   TOAST
   ============================================ */
.toast-container { position: fixed; top: var(--space-4); right: var(--space-4); z-index: var(--z-toast); display: flex; flex-direction: column; gap: var(--space-2); }
.toast { padding: var(--space-3) var(--space-5); background: var(--color-card-bg); backdrop-filter: blur(20px); border: 1px solid var(--color-border); border-radius: var(--radius-lg); font-size: 14px; color: var(--color-text-primary); box-shadow: 0 8px 30px rgba(0,0,0,0.2); animation: toastIn 0.3s ease-out; display: flex; align-items: center; gap: var(--space-3); min-width: 280px; }
.toast.success { border-left: 3px solid var(--color-green); }
.toast.error { border-left: 3px solid var(--color-rose); }
.toast.info { border-left: 3px solid var(--color-blue); }
@keyframes toastIn { from { opacity: 0; transform: translateX(100%); } to { opacity: 1; transform: translateX(0); } }

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: var(--space-8) var(--space-4); text-align: center; }
.empty-state svg { width: 48px; height: 48px; color: var(--color-text-muted); margin-bottom: var(--space-4); opacity: 0.5; }
.empty-state-title { font-size: 16px; font-weight: 600; color: var(--color-text-secondary); margin-bottom: var(--space-2); }
.empty-state-desc { font-size: 14px; color: var(--color-text-muted); margin-bottom: var(--space-4); }

/* ============================================
   LANDING PAGE
   ============================================ */
.landing { position: relative; z-index: 1; }
.hero { min-height: 80vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: var(--space-8); }
.hero-title { font-size: clamp(32px, 6vw, 56px); font-weight: 800; color: var(--color-text-primary); line-height: 1.1; margin-bottom: var(--space-4); letter-spacing: -0.02em; }
.hero-title .highlight { background: linear-gradient(135deg, var(--color-blue), var(--color-purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-subtitle { font-size: clamp(16px, 2.5vw, 20px); color: var(--color-text-secondary); max-width: 640px; line-height: 1.6; margin-bottom: var(--space-8); }
.hero-actions { display: flex; gap: var(--space-4); flex-wrap: wrap; justify-content: center; }
.hero-stats { display: flex; gap: var(--space-8); margin-top: var(--space-8); flex-wrap: wrap; justify-content: center; }
.hero-stat { text-align: center; }
.hero-stat-value { font-size: 28px; font-weight: 700; color: var(--color-text-primary); }
.hero-stat-label { font-size: 13px; color: var(--color-text-muted); margin-top: var(--space-1); }

/* FEATURES SECTION */
.section { padding: 80px var(--space-8); max-width: 1200px; margin: 0 auto; }
.section-title { font-size: 32px; font-weight: 700; color: var(--color-text-primary); text-align: center; margin-bottom: var(--space-3); }
.section-subtitle { font-size: 16px; color: var(--color-text-muted); text-align: center; margin-bottom: var(--space-8); max-width: 600px; margin-left: auto; margin-right: auto; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.feature-card { text-align: center; }
.feature-icon { width: 56px; height: 56px; border-radius: var(--radius-xl); display: flex; align-items: center; justify-content: center; margin: 0 auto var(--space-4); }
.feature-icon svg { width: 28px; height: 28px; }
.feature-title { font-size: 18px; font-weight: 600; color: var(--color-text-primary); margin-bottom: var(--space-2); }
.feature-desc { font-size: 14px; color: var(--color-text-muted); line-height: 1.6; }

/* COMPARISON TABLE */
.comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); }
.comparison-col { padding: var(--space-6); border-radius: var(--radius-xl); }
.comparison-col.old { background: rgba(244,63,94,0.06); border: 1px solid rgba(244,63,94,0.15); }
.comparison-col.new { background: rgba(16,185,129,0.06); border: 1px solid rgba(16,185,129,0.15); }
.comparison-col h3 { font-size: 18px; font-weight: 600; margin-bottom: var(--space-4); }
.comparison-col.old h3 { color: var(--color-rose); }
.comparison-col.new h3 { color: var(--color-green); }
.comparison-item { display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--space-3) 0; font-size: 14px; color: var(--color-text-secondary); }
.comparison-item svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; }

/* PRICING */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.pricing-card { text-align: center; }
.pricing-card.featured { border-color: var(--color-blue); box-shadow: 0 0 0 1px var(--color-blue), 0 8px 30px rgba(59,130,246,0.15); }
.pricing-name { font-size: 18px; font-weight: 600; color: var(--color-text-primary); }
.pricing-price { font-size: 36px; font-weight: 700; color: var(--color-text-primary); margin: var(--space-4) 0; }
.pricing-price span { font-size: 14px; font-weight: 500; color: var(--color-text-muted); }
.pricing-features { list-style: none; text-align: left; margin: var(--space-5) 0; }
.pricing-features li { padding: var(--space-2) 0; font-size: 14px; color: var(--color-text-secondary); display: flex; align-items: center; gap: var(--space-2); }
.pricing-features li svg { width: 16px; height: 16px; color: var(--color-green); flex-shrink: 0; }

/* FOOTER */
.footer { padding: var(--space-8); text-align: center; border-top: 1px solid var(--color-border-subtle); }
.footer p { font-size: 14px; color: var(--color-text-muted); }

/* AUTH PAGES */
.auth-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: var(--space-4); }
.auth-card { width: 100%; max-width: 420px; }
.auth-header { text-align: center; margin-bottom: var(--space-6); }
.auth-header h1 { font-size: 24px; font-weight: 700; color: var(--color-text-primary); margin-bottom: var(--space-2); }
.auth-header p { font-size: 14px; color: var(--color-text-muted); }
.auth-footer { text-align: center; margin-top: var(--space-5); font-size: 14px; color: var(--color-text-muted); }
.auth-footer a { color: var(--color-blue); font-weight: 500; }

/* ============================================
   ROOM LIST (Tenant view)
   ============================================ */
.room-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-5); }
.room-card { overflow: hidden; }
.room-card-img { height: 160px; background: linear-gradient(135deg, var(--color-card-bg), var(--color-hover-bg)); display: flex; align-items: center; justify-content: center; margin: calc(-1 * var(--space-6)) calc(-1 * var(--space-6)) var(--space-4); }
.room-card-img svg { width: 40px; height: 40px; color: var(--color-text-muted); opacity: 0.4; }
.room-number { font-size: 18px; font-weight: 600; color: var(--color-text-primary); margin-bottom: var(--space-1); }
.room-type { font-size: 12px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: var(--space-3); }
.room-price { font-size: 22px; font-weight: 700; color: var(--color-blue); margin-bottom: var(--space-3); }
.room-price span { font-size: 13px; font-weight: 400; color: var(--color-text-muted); }
.room-facilities { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.room-facility { padding: 2px 8px; background: var(--color-hover-bg); border-radius: var(--radius-sm); font-size: 11px; color: var(--color-text-secondary); }
.room-status { display: inline-block; padding: 2px 10px; border-radius: var(--radius-full); font-size: 12px; font-weight: 600; }
.room-status.available { background: rgba(16,185,129,0.12); color: #10B981; }
.room-status.occupied { background: rgba(244,63,94,0.12); color: #F43F5E; }
.room-status.maintenance { background: rgba(245,158,11,0.12); color: #F59E0B; }

/* ============================================
   LOADING
   ============================================ */
.loading-spinner { width: 32px; height: 32px; border: 3px solid var(--color-border); border-top-color: var(--color-blue); border-radius: 50%; animation: spin 0.8s linear infinite; margin: var(--space-8) auto; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */
.mobile-menu-btn { display: none; }
.sidebar-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: calc(var(--z-overlay) - 1); backdrop-filter: blur(4px); }
.sidebar-backdrop.active { display: block; }

@media (max-width: 1023px) {
  .sidebar { display: none; position: fixed; top: 0; left: 0; height: 100vh; z-index: var(--z-overlay); box-shadow: 4px 0 20px rgba(0,0,0,0.3); }
  .sidebar.open { display: flex; }
  .mobile-menu-btn { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .comparison-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .topbar-nav { display: none; }
  .user-name { display: none; }
}

@media (max-width: 767px) {
  .stats-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .main-content { padding: var(--space-4); }
  .hero { padding: var(--space-6) var(--space-4); min-height: 70vh; }
  .hero-stats { gap: var(--space-5); }
  .form-row { flex-direction: column; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
}

/* ============================================
   UTILITY
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.hidden { display: none !important; }
.w-full { width: 100%; }

/* Card entrance animation */
.animate-in { animation: cardEntrance 0.5s ease-out forwards; opacity: 0; }
@keyframes cardEntrance { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }