/* =========================================
   BILLIARD MANAGEMENT SYSTEM — Global CSS
   Dark / Light Theme with smooth transitions
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ==================== CSS VARIABLES ==================== */
:root {
    --bg-primary:    #0f1117;
    --bg-secondary:  #1a1d27;
    --bg-card:       #1e2235;
    --bg-hover:      #252840;
    --sidebar-width: 260px;
    --accent:        #6c63ff;
    --accent-hover:  #5a54e0;
    --accent-light:  rgba(108,99,255,.15);
    --success:       #22c55e;
    --warning:       #f59e0b;
    --danger:        #ef4444;
    --info:          #3b82f6;
    --text-primary:  #e2e8f0;
    --text-secondary:#94a3b8;
    --text-muted:    #64748b;
    --border:        rgba(255,255,255,.07);
    --shadow:        0 4px 24px rgba(0,0,0,.4);
    --radius:        12px;
    --radius-sm:     8px;
    --transition:    .2s ease;
}

[data-theme="light"] {
    --bg-primary:    #f0f2f5;
    --bg-secondary:  #ffffff;
    --bg-card:       #ffffff;
    --bg-hover:      #f1f5f9;
    --accent:        #6c63ff;
    --accent-hover:  #5a54e0;
    --accent-light:  rgba(108,99,255,.1);
    --text-primary:  #1e293b;
    --text-secondary:#475569;
    --text-muted:    #94a3b8;
    --border:        rgba(0,0,0,.1);
    --shadow:        0 4px 24px rgba(0,0,0,.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background var(--transition), color var(--transition);
    min-height: 100vh;
    display: flex;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }

/* ==================== LAYOUT ==================== */
.app-wrapper { display: flex; width: 100%; min-height: 100vh; }

/* ==================== SIDEBAR ==================== */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    z-index: 100;
    transition: background var(--transition), border-color var(--transition);
}

.sidebar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}
.sidebar-logo .logo-icon {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--accent), #a78bfa);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(108,99,255,.4);
}
.sidebar-logo h1 {
    font-size: 16px; font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}
.sidebar-logo span {
    font-size: 11px; font-weight: 400;
    color: var(--text-muted);
}

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }

.nav-section-title {
    font-size: 10px; font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-muted);
    padding: 12px 8px 6px;
}

.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px; font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    margin-bottom: 2px;
    position: relative;
}
.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.nav-item.active {
    background: var(--accent-light);
    color: var(--accent);
}
.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 3px; height: 60%;
    background: var(--accent);
    border-radius: 0 3px 3px 0;
}
.nav-item .nav-icon { font-size: 17px; width: 20px; text-align: center; }
.nav-item .nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: #fff;
    font-size: 10px; font-weight: 700;
    padding: 2px 6px; border-radius: 20px;
}

.sidebar-footer {
    padding: 16px 12px;
    border-top: 1px solid var(--border);
}

/* ==================== MAIN CONTENT ==================== */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ==================== TOPBAR ==================== */
.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;
    transition: background var(--transition);
}

.topbar-title { font-size: 18px; font-weight: 600; }

.topbar-actions { display: flex; align-items: center; gap: 12px; }

/* ==================== THEME TOGGLE ==================== */
.theme-toggle {
    width: 44px; height: 24px;
    background: var(--bg-hover);
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    position: relative;
    transition: background var(--transition);
    display: flex; align-items: center;
    padding: 2px;
}
.theme-toggle::after {
    content: '';
    width: 18px; height: 18px;
    background: var(--accent);
    border-radius: 50%;
    transition: transform var(--transition);
    box-shadow: 0 2px 6px rgba(108,99,255,.5);
}
[data-theme="light"] .theme-toggle::after { transform: translateX(20px); }

.theme-icon { font-size: 14px; position: absolute; }
.theme-icon.moon { left: 4px; }
.theme-icon.sun  { right: 4px; }

/* ==================== PAGE CONTENT ==================== */
.page-content { padding: 24px; flex: 1; }

/* ==================== CARDS ==================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: background var(--transition), border-color var(--transition);
    box-shadow: var(--shadow);
}
.card:hover { border-color: rgba(108,99,255,.3); }

.card-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.card-title { font-size: 15px; font-weight: 600; }

/* ==================== STAT CARDS ==================== */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex; align-items: center; gap: 16px;
    transition: all var(--transition);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.stat-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
}
.stat-icon.green  { background: rgba(34,197,94,.15);  color: var(--success); }
.stat-icon.purple { background: rgba(108,99,255,.15); color: var(--accent); }
.stat-icon.amber  { background: rgba(245,158,11,.15); color: var(--warning); }
.stat-icon.red    { background: rgba(239,68,68,.15);  color: var(--danger); }
.stat-icon.blue   { background: rgba(59,130,246,.15); color: var(--info); }

.stat-value { font-size: 24px; font-weight: 700; }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

/* ==================== TABLE ==================== */
.table-responsive { overflow-x: auto; }
.billiard-table { width: 100%; border-collapse: collapse; }
.billiard-table thead th {
    background: var(--bg-primary);
    color: var(--text-muted);
    font-size: 11px; font-weight: 600;
    text-transform: uppercase; letter-spacing: .8px;
    padding: 10px 16px;
    text-align: left;
}
.billiard-table tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 14px; }
.billiard-table tbody tr:hover { background: var(--bg-hover); }
.billiard-table tbody tr:last-child td { border-bottom: none; }

/* ==================== TABLE STATUS CARDS ==================== */
.table-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; }

.table-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}
.table-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.table-card.empty   { border-color: rgba(34,197,94,.4);  }
.table-card.playing { border-color: rgba(245,158,11,.4); background: rgba(245,158,11,.05); }
.table-card.waiting { border-color: rgba(239,68,68,.4);  background: rgba(239,68,68,.05); }

.table-card .table-icon { font-size: 32px; margin-bottom: 8px; }
.table-card .table-name { font-weight: 600; font-size: 14px; }
.table-card .table-type { font-size: 12px; color: var(--text-muted); margin: 4px 0; }
.table-card .table-status-badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.table-card.empty   .table-status-badge { background: rgba(34,197,94,.2);  color: var(--success); }
.table-card.playing .table-status-badge { background: rgba(245,158,11,.2); color: var(--warning); }
.table-card.waiting .table-status-badge { background: rgba(239,68,68,.2);  color: var(--danger); }

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 500;
    cursor: pointer; border: none; transition: all var(--transition);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(108,99,255,.4); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { filter: brightness(1.1); }
.btn-warning { background: var(--warning); color: #000; }
.btn-warning:hover { filter: brightness(1.1); }
.btn-danger  { background: var(--danger);  color: #fff; }
.btn-danger:hover  { filter: brightness(1.1); }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-light); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }

/* ==================== BADGES ==================== */
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 20px;
    font-size: 11px; font-weight: 600;
}
.badge-success { background: rgba(34,197,94,.15);  color: var(--success); }
.badge-warning { background: rgba(245,158,11,.15); color: var(--warning); }
.badge-danger  { background: rgba(239,68,68,.15);  color: var(--danger); }
.badge-info    { background: rgba(59,130,246,.15);  color: var(--info); }
.badge-muted   { background: var(--bg-hover);       color: var(--text-muted); }

/* ==================== FORMS ==================== */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; }
.form-control {
    width: 100%;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 9px 14px; font-size: 14px;
    transition: all var(--transition);
    font-family: 'Inter', sans-serif;
}
.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(108,99,255,.15);
}
.form-control::placeholder { color: var(--text-muted); }
select.form-control { cursor: pointer; }

/* ==================== ALERTS ==================== */
.alert {
    padding: 12px 16px; border-radius: var(--radius-sm);
    font-size: 14px; margin-bottom: 16px;
    display: flex; align-items: center; gap: 10px;
}
.alert-success { background: rgba(34,197,94,.1);  border: 1px solid rgba(34,197,94,.3);  color: var(--success); }
.alert-danger  { background: rgba(239,68,68,.1);  border: 1px solid rgba(239,68,68,.3);  color: var(--danger); }
.alert-warning { background: rgba(245,158,11,.1); border: 1px solid rgba(245,158,11,.3); color: var(--warning); }

/* ==================== TIMER ==================== */
.timer-display {
    font-size: 48px; font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--accent);
    text-shadow: 0 0 30px rgba(108,99,255,.5);
    letter-spacing: 4px;
}

/* ==================== INVOICE PRINT ==================== */
@media print {
    .sidebar, .topbar, .no-print { display: none !important; }
    .main-content { margin-left: 0 !important; }
    .page-content { padding: 0 !important; }
    body { background: #fff !important; color: #000 !important; }
    .card { box-shadow: none !important; border: 1px solid #ddd !important; }
}

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--bg-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn  { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes pulse   { 0%,100% { opacity: 1; } 50% { opacity: .5; } }
.fade-in  { animation: fadeIn .3s ease forwards; }
.pulsing  { animation: pulse 2s ease-in-out infinite; }

/* ==================== UTILITY ==================== */
.text-muted   { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info    { color: var(--info); }
.text-accent  { color: var(--accent); }
.fw-bold      { font-weight: 700; }
.fs-sm        { font-size: 12px; }
.d-flex       { display: flex; }
.align-center { align-items: center; }
.gap-2        { gap: 8px; }
.gap-3        { gap: 12px; }
.mt-1         { margin-top: 6px; }
.mt-2         { margin-top: 12px; }
.mb-2         { margin-bottom: 12px; }
.mb-3         { margin-bottom: 20px; }
.text-right   { text-align: right; }
.w-100        { width: 100%; }