/* Gaming Center - Professional Modern UI */
/* Unified Color Palette & Optimized Styles */

/* ===== CSS VARIABLES ===== */
:root {
    /* Primary Colors - Professional Blue Theme */
    --primary: #66a3ff;         /* a bit brighter */
    --primary-light: #8db8ff;
    --primary-dark: #4f86e6;
    --primary-glow: rgba(102, 163, 255, 0.28);
    
    /* Accent - Cyan */
    --accent: #38e0c6;          /* brighter teal */
    --accent-light: #6ff0dc;
    --accent-glow: rgba(56, 224, 198, 0.24);
    
    /* Status Colors */
    --success: #34d399;
    --success-light: #6ee7b7;
    --success-glow: rgba(52, 211, 153, 0.22);
    
    --warning: #fbbf24;
    --warning-light: #fcd34d;
    --warning-glow: rgba(251, 191, 36, 0.22);
    
    --danger: #f87171;
    --danger-light: #fca5a5;
    --danger-glow: rgba(248, 113, 113, 0.22);
    
    --info: #06b6d4;
    
    /* Dim/Dark (game vibe, readable) */
    --bg-dark: #0d1424;         /* page background */
    --bg-surface: #121f34;      /* cards/surfaces */
    --bg-surface-light: #192b47;
    --bg-surface-hover: #1f3556;
    
    /* Border & Text */
    --border: #2a3e62;
    --border-light: #36507d;
    --text: #eef4ff;
    --text-secondary: #c7d3ea;
    --text-muted: #8ea2c6;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.10);
    --shadow-lg: 0 12px 28px rgba(15, 23, 42, 0.14);

    /* Radius / spacing (minimalist) */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --ring: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
}

/* ===== BASE ===== */
body, .gaming-body {
    background-image:
        radial-gradient(900px 520px at 18% 8%, rgba(79, 140, 255, 0.18), transparent 55%),
        radial-gradient(900px 520px at 82% 12%, rgba(45, 212, 191, 0.14), transparent 55%),
        radial-gradient(700px 420px at 55% 92%, rgba(245, 158, 11, 0.10), transparent 55%),
        linear-gradient(180deg, rgba(11, 18, 32, 0.96), rgba(11, 18, 32, 0.96));
    background-size: 140% 140%, 150% 150%, 160% 160%, 100% 100%;
    background-position: 0% 0%, 100% 0%, 50% 100%, 0 0;
    animation: bgShift 18s ease-in-out infinite;
    background-color: var(--bg-dark);
    background-attachment: fixed;
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    min-height: 100vh;
    color: var(--text);
}

/* Basic modal behavior when Bootstrap JS is unavailable */
body.modal-open {
    overflow: hidden;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 1040;
    pointer-events: none;
}

/* Modal overrides (align with Bootstrap defaults to avoid lockups when bundle missing) */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1055;
    display: none;
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    outline: 0;
}

.modal.show {
    display: block;
}

.modal-dialog {
    position: relative;
    width: auto;
    margin: 1.5rem auto;
}

@keyframes bgShift {
    0%   { background-position: 0% 0%, 100% 0%, 50% 100%, 0 0; }
    50%  { background-position: 100% 20%, 0% 80%, 35% 0%, 0 0; }
    100% { background-position: 0% 0%, 100% 0%, 50% 100%, 0 0; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* Page enter */
.app-main {
    animation: appFadeIn 220ms ease-out both;
}

@keyframes appFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Typography tweaks */
.page-header .display-4,
.page-header .display-5 {
    letter-spacing: -0.02em;
}

.page-header p.lead {
    margin-bottom: 0;
}

/* ===== NAVBAR ===== */
.gaming-navbar {
    background: rgba(16, 26, 43, 0.82);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.gaming-brand {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.gaming-logo {
    font-size: 1.4rem;
    color: var(--primary);
}

.brand-text {
    color: var(--text);
}

.navbar-logo {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 8px;
    border: 2px solid var(--border);
}

.navbar-nav .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 0.875rem !important;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    background: var(--bg-surface-light);
    color: var(--text) !important;
}

.navbar-nav .nav-link i {
    opacity: 0.8;
}

.dropdown-menu {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
}

.dropdown-item {
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.dropdown-item:hover,
.dropdown-item.active {
    background: var(--bg-surface-light);
    color: var(--text);
}

.dropdown-divider {
    border-color: var(--border);
}

/* ===== CARDS ===== */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 0.875rem;
    transition: all 0.2s ease;
}

.card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-md);
}

.card-header {
    background: linear-gradient(135deg, var(--bg-surface), var(--bg-surface-light));
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.25rem;
    font-weight: 600;
    color: var(--text);
    border-radius: 0.875rem 0.875rem 0 0 !important;
}

.card-body {
    padding: 1.25rem;
}

/* Dashboard Cards */
.dashboard-card {
    background: linear-gradient(135deg, rgba(16, 26, 43, 0.92), rgba(21, 34, 58, 0.92));
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}

.dashboard-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.25s ease;
}

.dashboard-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.dashboard-card:hover::before {
    opacity: 1;
}

/* Alerts (less harsh) */
.alert {
    border: 1px solid rgba(36, 53, 85, 0.85);
    background: rgba(16, 26, 43, 0.72);
    color: var(--text);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.alert-success { border-color: rgba(16, 185, 129, 0.35); }
.alert-danger { border-color: rgba(239, 68, 68, 0.35); }
.alert-warning { border-color: rgba(245, 158, 11, 0.35); }
.alert-info { border-color: rgba(6, 182, 212, 0.35); }

/* Flash stack (top-right like toasts) */
.flash-stack {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1080;
    width: min(520px, calc(100vw - 2rem));
    display: grid;
    gap: 0.75rem;
}

.flash-stack .alert {
    margin: 0;
    box-shadow: var(--shadow-lg);
}

/* Soft colored cards */
.card.bg-primary,
.card.bg-success,
.card.bg-info,
.card.bg-danger,
.card.bg-warning {
    background: linear-gradient(135deg, rgba(16, 26, 43, 0.95), rgba(21, 34, 58, 0.95)) !important;
    border: 1px solid var(--border) !important;
}

.card.bg-primary .card-body i { color: var(--primary); }
.card.bg-success .card-body i { color: var(--success); }
.card.bg-info .card-body i { color: var(--accent); }
.card.bg-warning .card-body i { color: var(--warning); }
.card.bg-danger .card-body i { color: var(--danger); }

/* Page header */
.page-header {
    margin: 0 auto 1.25rem auto;
    max-width: 64rem;
}

.page-header h1 {
    margin-bottom: 0.35rem;
}

.dashboard-card .fs-1 {
    font-size: 2.25rem !important;
    margin-bottom: 0.75rem;
    color: var(--primary);
}

.dashboard-card h3 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text);
}

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

.dashboard-card small {
    color: var(--text-muted);
}

/* Room Cards */
.card.border-success,
.card.bg-success.bg-opacity-10 {
    background: rgba(16, 185, 129, 0.08) !important;
    border-color: var(--success) !important;
}

.card.border-danger,
.card.bg-danger.bg-opacity-10 {
    background: rgba(239, 68, 68, 0.08) !important;
    border-color: var(--danger) !important;
}

/* ===== BUTTONS ===== */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: none;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible {
    outline: none;
    box-shadow: var(--ring);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 2px 8px var(--primary-glow);
}

/* Inputs (minimal dark) */
.form-control,
.form-select,
.input-group-text {
    background: rgba(16, 26, 43, 0.86);
    border-color: var(--border);
    color: var(--text);
}

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

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:focus,
.form-select:focus {
    background: rgba(16, 26, 43, 1);
    border-color: rgba(79, 140, 255, 0.65);
    box-shadow: var(--ring);
}

/* Modals */
.modal-content {
    background: linear-gradient(180deg, rgba(24, 39, 62, 0.98), rgba(16, 28, 46, 0.98));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    color: var(--text);
}

.modal-header,
.modal-footer {
    border-color: var(--border);
}

.btn-close {
    filter: invert(1) grayscale(100%);
    opacity: 0.75;
}

.btn-close:hover {
    opacity: 1;
}

/* Nav tabs -> pill-like minimal */
.nav-tabs {
    border-bottom: 1px solid var(--border);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.9rem;
    margin-right: 0.25rem;
    transition: all 0.15s ease;
}

.nav-tabs .nav-link:hover {
    background: rgba(148, 163, 184, 0.08);
    color: var(--text);
}

.nav-tabs .nav-link.active {
    background: rgba(59, 130, 246, 0.14);
    color: var(--text);
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.35) inset;
}

/* Filter panels */
.filter-panel {
    background: rgba(16, 26, 43, 0.55);
    border: 1px solid rgba(36, 53, 85, 0.9);
    border-radius: var(--radius-md);
}

/* Tables */
.table {
    --bs-table-color: var(--text);
    --bs-table-bg: transparent;
}

.table thead th {
    color: var(--text-secondary);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: white;
    box-shadow: 0 2px 8px var(--success-glow);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--success-light), var(--success));
    box-shadow: 0 4px 12px var(--success-glow);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #dc2626);
    color: white;
    box-shadow: 0 2px 8px var(--danger-glow);
}

.btn-danger:hover {
    background: linear-gradient(135deg, var(--danger-light), var(--danger));
    box-shadow: 0 4px 12px var(--danger-glow);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning), #d97706);
    color: #1e293b;
    box-shadow: 0 2px 8px var(--warning-glow);
}

.btn-warning:hover {
    background: linear-gradient(135deg, var(--warning-light), var(--warning));
}

.btn-info {
    background: linear-gradient(135deg, var(--info), #0891b2);
    color: white;
    box-shadow: 0 2px 8px var(--accent-glow);
}

.btn-info:hover {
    background: linear-gradient(135deg, var(--accent-light), var(--info));
}

.btn-secondary {
    background: var(--bg-surface-light);
    color: var(--text);
    border: 1px solid var(--border);
}

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

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: white;
}

.btn-outline-secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.btn-outline-secondary:hover {
    background: var(--bg-surface-light);
    color: var(--text);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* ===== FORMS ===== */
.form-control,
.form-select {
    background: var(--bg-surface-light);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text);
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    background: var(--bg-surface);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    color: var(--text);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-label {
    color: var(--text);
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.input-group-text {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.625rem 0.875rem;
}

.form-control:disabled,
.form-control[readonly] {
    background: var(--bg-surface);
    opacity: 0.6;
}

.form-select-sm,
.form-control-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

/* ===== TABLES ===== */
.table {
    background: var(--bg-surface);
    border-radius: 0.75rem;
    overflow: hidden;
    margin-bottom: 0;
}

.table th {
    background: var(--bg-surface-light);
    border-color: var(--border);
    color: var(--text);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    padding: 0.875rem 1rem;
}

.table td {
    border-color: var(--border);
    padding: 0.75rem 1rem;
    vertical-align: middle;
    color: var(--text);
}

.table-striped > tbody > tr:nth-of-type(odd) > td {
    background: rgba(255, 255, 255, 0.02);
}

.table-hover > tbody > tr:hover > td {
    background: rgba(59, 130, 246, 0.06);
}

/* ===== BADGES ===== */
.badge {
    font-size: 0.75rem;
    padding: 0.35rem 0.6rem;
    border-radius: 0.375rem;
    font-weight: 500;
}

.badge.bg-primary { background: var(--primary) !important; }
.badge.bg-success { background: var(--success) !important; }
.badge.bg-danger { background: var(--danger) !important; }
.badge.bg-warning { background: var(--warning) !important; color: #1e293b !important; }
.badge.bg-info { background: var(--info) !important; }
.badge.bg-secondary { background: var(--bg-surface-hover) !important; }

/* ===== ALERTS ===== */
.alert {
    border: none;
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
    font-weight: 500;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(16, 185, 129, 0.12);
    border-left-color: var(--success);
    color: var(--success-light);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.12);
    border-left-color: var(--danger);
    color: var(--danger-light);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.12);
    border-left-color: var(--warning);
    color: var(--warning-light);
}

.alert-info {
    background: rgba(6, 182, 212, 0.12);
    border-left-color: var(--info);
    color: var(--accent-light);
}

.alert .btn-close {
    filter: invert(1) brightness(200%);
}

/* ===== MODALS ===== */
.modal-title {
    color: var(--text);
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--border);
    padding: 1rem 1.25rem;
}

/* ===== TIMER ===== */
.timer {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-weight: 600;
}

.timer .time-display {
    font-size: 1.1em;
    padding: 0.5rem 0.875rem;
    border-radius: 0.5rem;
    background: var(--bg-surface-light);
    border: 1px solid var(--border);
    display: inline-block;
    min-width: 100px;
    text-align: center;
}

.timer-mini .time-display {
    font-size: 0.85em;
    padding: 0.25rem 0.5rem;
    min-width: auto;
}

/* Session Status */
.session-active { border-left: 4px solid var(--success); }
.session-warning { border-left: 4px solid var(--warning); }
.session-danger { border-left: 4px solid var(--danger); }
.session-completed { border-left: 4px solid var(--text-muted); }

.timer-warning .time-display {
    background: rgba(245, 158, 11, 0.15);
    border-color: var(--warning);
    color: var(--warning-light);
    animation: pulse 2s infinite;
}

.timer-danger .time-display {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--danger);
    color: var(--danger-light);
    animation: blink 1s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.5; }
}

/* ===== LOGIN PAGE ===== */
.login-card {
    border: none;
    border-radius: 1.25rem;
    background: var(--bg-surface);
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.login-header {
    background: transparent;
    border: none;
    padding: 2.5rem 2rem 1.5rem;
    text-align: center;
}

.login-logo {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.login-title {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text);
}

/* ===== PAGE HEADERS ===== */
.page-header {
    padding: 1rem 0;
    margin-bottom: 1.5rem;
}

.page-header h1,
.page-header .display-4 {
    font-size: 1.75rem !important;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.page-header .lead {
    font-size: 0.95rem !important;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.page-header i {
    font-size: 1.25rem;
    margin-right: 0.5rem;
    color: var(--primary);
}

/* Keep headings readable in dark theme */
h1.text-primary {
    color: var(--primary) !important;
}

/* ===== SEARCH & FILTER BAR ===== */
.search-filter-bar {
    background: var(--bg-surface);
    padding: 1rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    margin-bottom: 1.5rem;
}

/* ===== BILLING OPTIONS ===== */
.billing-option {
    cursor: pointer;
    transition: all 0.2s ease;
}

.billing-option:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== PROGRESS BAR ===== */
.progress {
    height: 8px;
    border-radius: 4px;
    background: var(--bg-surface-light);
}

.progress-bar {
    border-radius: 4px;
}

/* ===== CONTAINER ===== */
.container-fluid {
    padding: 1.5rem;
}

/* ===== UTILITIES ===== */
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--text-muted) !important; }

.bg-primary { background-color: var(--primary) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-danger { background-color: var(--danger) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-info { background-color: var(--info) !important; }

.border-primary { border-color: var(--primary) !important; }
.border-success { border-color: var(--success) !important; }
.border-danger { border-color: var(--danger) !important; }
.border-warning { border-color: var(--warning) !important; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .dashboard-card {
        padding: 1.25rem;
    }
    
    .dashboard-card h3 {
        font-size: 1.5rem;
    }
    
    .container-fluid {
        padding: 1rem;
    }
    
    .page-header h1,
    .page-header .display-4 {
        font-size: 1.4rem !important;
    }
    
    .table-responsive {
        font-size: 0.8rem;
    }
    
    .btn-group-sm .btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-surface-hover);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ===== SELECTION ===== */
::selection {
    background: var(--primary);
    color: white;
}

/* ===== SPINNER ===== */
.spinner-border {
    color: var(--primary);
}

/* ===== CARD ANIMATION ===== */
.card {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}