/*
   dPOLLBAR BILL — Main Stylesheet
   Design: Dark Mode Luxury + Light Mode Option
   */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables */
:root {
  --bg-primary:    #0F0F1A;
  --bg-secondary:  #1A1A2E;
  --bg-surface:    #16213E;
  --bg-card:       #1E1E35;
  --bg-input:      #252540;
  --border:        #2D2D50;
  --border-light:  #3A3A60;
  --text-primary:  #E2E8F0;
  --text-secondary:#94A3B8;
  --text-muted:    #64748B;
  --accent:        #7C3AED;
  --accent-light:  #9D5CF6;
  --accent-glow:   rgba(124,58,237,0.25);
  --cyan:          #06B6D4;
  --cyan-glow:     rgba(6,182,212,0.2);
  --green:         #10B981;
  --green-glow:    rgba(16,185,129,0.2);
  --yellow:        #F59E0B;
  --red:           #EF4444;
  --red-glow:      rgba(239,68,68,0.2);
  --shadow-sm:     0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:     0 4px 20px rgba(0,0,0,0.5);
  --shadow-lg:     0 8px 40px rgba(0,0,0,0.6);
  --radius-sm:     8px;
  --radius-md:     12px;
  --radius-lg:     16px;
  --radius-xl:     24px;
  --transition:    all 0.25s cubic-bezier(0.4,0,0.2,1);
  --sidebar-width: 240px;
}

/* Light Mode */
[data-theme="light"] {
  --bg-primary:   #F0F4FF;
  --bg-secondary: #E8EEFF;
  --bg-surface:   #FFFFFF;
  --bg-card:      #FFFFFF;
  --bg-input:     #F1F5F9;
  --border:       #E2E8F0;
  --border-light: #CBD5E1;
  --text-primary: #1E293B;
  --text-secondary:#475569;
  --text-muted:   #94A3B8;
  --shadow-sm:    0 2px 8px rgba(0,0,0,0.08);
  --shadow-md:    0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg:    0 8px 40px rgba(0,0,0,0.16);
}

/* Reset */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; transition: background 0.3s, color 0.3s; min-height: 100vh; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Layout */
.app-layout { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar-width); background: var(--bg-secondary); border-right: 1px solid var(--border); display: flex; flex-direction: column; position: fixed; top: 0; left: 0; height: 100vh; z-index: 100; transition: var(--transition); overflow-y: auto; overflow-x: hidden; }
.main-content { margin-left: var(--sidebar-width); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.topbar { background: var(--bg-secondary); border-bottom: 1px solid var(--border); padding: 0 24px; height: 64px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 50; backdrop-filter: blur(10px); }
.page-content { padding: 24px; flex: 1; }

/* Sidebar Brand */
.sidebar-brand { padding: 20px 16px; border-bottom: 1px solid var(--border); }
.brand-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-icon { width: 40px; height: 40px; background: linear-gradient(135deg,var(--accent),var(--cyan)); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 20px; box-shadow: 0 0 20px var(--accent-glow); }
.brand-text { font-size: 15px; font-weight: 800; color: var(--text-primary); letter-spacing: -0.5px; line-height: 1.1; }
.brand-sub { font-size: 10px; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }

/* Sidebar Nav */
.sidebar-nav { padding: 12px 8px; flex: 1; }
.nav-label { font-size: 10px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1.5px; padding: 12px 12px 6px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--radius-sm); color: var(--text-secondary); text-decoration: none; font-size: 13px; font-weight: 500; transition: var(--transition); margin-bottom: 2px; cursor: pointer; border: none; background: none; width: 100%; }
.nav-item:hover { background: var(--bg-card); color: var(--text-primary); }
.nav-item.active { background: var(--accent-glow); color: var(--accent-light); border-left: 3px solid var(--accent); }
.nav-item .icon { width: 18px; height: 18px; flex-shrink: 0; }
.nav-badge { margin-left: auto; background: var(--accent); color: #fff; font-size: 10px; font-weight: 700; padding: 1px 7px; border-radius: 20px; }

/* Sidebar Footer */
.sidebar-footer { padding: 12px 8px; border-top: 1px solid var(--border); }
.user-info { display: flex; align-items: center; gap: 10px; padding: 10px; border-radius: var(--radius-sm); background: var(--bg-card); }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg,var(--accent),var(--cyan)); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; color: #fff; flex-shrink: 0; }
.user-name { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.user-role { font-size: 11px; color: var(--text-muted); text-transform: capitalize; }

/* Cards */
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px; box-shadow: var(--shadow-sm); }
.card-glass { background: rgba(30,30,53,0.6); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 20px; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.card-title { font-size: 15px; font-weight: 700; color: var(--text-primary); }

/* Stat Cards */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px; position: relative; overflow: hidden; transition: var(--transition); }
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; }
.stat-card.violet::before { background: linear-gradient(90deg,var(--accent),var(--accent-light)); }
.stat-card.cyan::before   { background: linear-gradient(90deg,var(--cyan),#22D3EE); }
.stat-card.green::before  { background: linear-gradient(90deg,var(--green),#34D399); }
.stat-card.yellow::before { background: linear-gradient(90deg,var(--yellow),#FCD34D); }
.stat-icon { width: 44px; height: 44px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 12px; }
.stat-card.violet .stat-icon { background: var(--accent-glow); }
.stat-card.cyan .stat-icon   { background: var(--cyan-glow); }
.stat-card.green .stat-icon  { background: var(--green-glow); }
.stat-card.yellow .stat-icon { background: rgba(245,158,11,0.2); }
.stat-value { font-size: 24px; font-weight: 800; color: var(--text-primary); letter-spacing: -1px; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.stat-change { font-size: 11px; margin-top: 8px; display: flex; align-items: center; gap: 4px; }
.stat-change.up   { color: var(--green); }
.stat-change.down { color: var(--red); }

/* Table Status Grid */
.table-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 12px; }
.table-card { border-radius: var(--radius-md); padding: 16px; cursor: pointer; transition: var(--transition); border: 2px solid transparent; text-align: center; position: relative; overflow: hidden; }
.table-card:hover { transform: translateY(-3px); }
.table-card.available { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.3); }
.table-card.occupied  { background: rgba(239,68,68,0.1);  border-color: rgba(239,68,68,0.4); }
.table-card.reserved  { background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.3); }
.table-card.maintenance { background: rgba(100,116,139,0.1); border-color: rgba(100,116,139,0.3); }
.table-type-icon { font-size: 28px; margin-bottom: 8px; }
.table-name { font-size: 13px; font-weight: 700; color: var(--text-primary); }
.table-status { font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-top: 4px; }
.table-card.available .table-status   { color: var(--green); }
.table-card.occupied .table-status    { color: var(--red); }
.table-card.reserved .table-status    { color: var(--yellow); }
.table-card.maintenance .table-status { color: var(--text-muted); }
.table-timer { font-size: 28px; font-weight: 900; color: var(--text-primary); margin-top: 6px; font-variant-numeric: tabular-nums; letter-spacing: -1px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 9px 18px; border-radius: var(--radius-sm); font-size: 13px; font-weight: 600; cursor: pointer; transition: var(--transition); border: none; text-decoration: none; white-space: nowrap; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-light); box-shadow: 0 4px 15px var(--accent-glow); }
.btn-cyan  { background: var(--cyan); color: #fff; }
.btn-cyan:hover  { box-shadow: 0 4px 15px var(--cyan-glow); opacity: 0.9; }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { box-shadow: 0 4px 15px var(--green-glow); opacity: 0.9; }
.btn-red   { background: var(--red); color: #fff; }
.btn-red:hover   { box-shadow: 0 4px 15px var(--red-glow); opacity: 0.9; }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg-card); color: var(--text-primary); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 13px 28px; font-size: 15px; border-radius: var(--radius-md); }
.btn-icon { width: 36px; height: 36px; padding: 0; justify-content: center; border-radius: var(--radius-sm); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.form-control { width: 100%; background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-primary); padding: 10px 14px; font-size: 14px; font-family: inherit; transition: var(--transition); outline: none; }
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-control::placeholder { color: var(--text-muted); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

/* Tables */
.table-responsive { overflow-x: auto; border-radius: var(--radius-md); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th { background: var(--bg-surface); color: var(--text-muted); font-weight: 700; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); }
tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border); color: var(--text-primary); }
tbody tr:hover { background: var(--bg-surface); }
tbody tr:last-child td { border-bottom: none; }

/* Badges / Pills */
.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 700; }
.badge-green  { background: var(--green-glow); color: var(--green); }
.badge-red    { background: var(--red-glow); color: var(--red); }
.badge-yellow { background: rgba(245,158,11,0.2); color: var(--yellow); }
.badge-violet { background: var(--accent-glow); color: var(--accent-light); }
.badge-cyan   { background: var(--cyan-glow); color: var(--cyan); }
.badge-gray   { background: rgba(100,116,139,0.2); color: var(--text-muted); }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(4px); z-index: 1000; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.active { display: flex; animation: fadeIn 0.2s ease; }
.modal { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: var(--radius-xl); padding: 28px; width: 100%; max-width: 480px; box-shadow: var(--shadow-lg); animation: slideUp 0.3s cubic-bezier(0.4,0,0.2,1); }
.modal-lg { max-width: 680px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal-title { font-size: 18px; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 20px; line-height: 1; padding: 4px; border-radius: 6px; transition: var(--transition); }
.modal-close:hover { color: var(--text-primary); background: var(--bg-surface); }
.modal-footer { display: flex; gap: 10px; justify-content: flex-end; margin-top: 24px; }

/* Alerts */
.alert { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-size: 13px; font-weight: 500; }
.alert-success { background: var(--green-glow); border: 1px solid rgba(16,185,129,0.3); color: var(--green); }
.alert-error   { background: var(--red-glow);   border: 1px solid rgba(239,68,68,0.3);  color: var(--red); }
.alert-warning { background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.3); color: var(--yellow); }
.alert-info    { background: var(--cyan-glow); border: 1px solid rgba(6,182,212,0.3); color: var(--cyan); }

/* Countdown Timer */
.countdown { font-size: 28px; font-weight: 900; font-variant-numeric: tabular-nums; letter-spacing: -1px; }
.countdown.warning { color: var(--yellow); animation: pulse 1s infinite; }
.countdown.danger  { color: var(--red);    animation: pulse 0.5s infinite; }
.countdown.expired { color: var(--red);    }

/* Page Header */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.page-title  { font-size: 22px; font-weight: 800; letter-spacing: -0.5px; }
.page-subtitle { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-muted); }
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb span { color: var(--text-muted); }

/* Divider */
.divider { height: 1px; background: var(--border); margin: 20px 0; }

/* Search Box */
.search-box { position: relative; }
.search-box input { padding-left: 38px; }
.search-box .search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }

/* Animations */
@keyframes fadeIn    { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp   { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse     { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes shimmer   { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
@keyframes spin      { to { transform: rotate(360deg); } }

.skeleton { background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-surface) 50%, var(--bg-card) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }
.spinner { width: 24px; height: 24px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; }

/* Responsive */
@media (max-width: 768px) {
  :root { --sidebar-width: 0px; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); width: 240px; }
  .main-content { margin-left: 0; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .page-content { padding: 16px; }
  .topbar { padding: 0 16px; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .table-grid { grid-template-columns: repeat(2,1fr); }
}

/* Utility */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-sm   { font-size: 12px; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent-light); }
.text-green  { color: var(--green); }
.text-red    { color: var(--red); }
.font-bold   { font-weight: 700; }
.w-full { width: 100%; }
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2,1fr); gap: 16px; }
.grid-3 { grid-template-columns: repeat(3,1fr); gap: 16px; }
.hidden { display: none !important; }
.text-right { text-align: right; }
.rounded { border-radius: var(--radius-sm); }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }