/* ============================================================
   A.T.I.M.A.N. – Main Stylesheet
   Design: Elegant glassmorphism + gradient dark-navy theme
============================================================ */

:root {
    --primary:        #4f8ef7;
    --primary-dark:   #2563eb;
    --accent:         #06d6a0;
    --danger:         #ef4444;
    --warning:        #f59e0b;
    --bg-dark:        #0d1b2a;
    --bg-mid:         #162032;
    --sidebar-width:  260px;
    --topbar-height:  64px;
    --glass-bg:       rgba(255, 255, 255, 0.05);
    --glass-border:   rgba(255, 255, 255, 0.12);
    --text-primary:   #f0f4ff;
    --text-muted:     rgba(240, 244, 255, 0.50);
    --card-radius:    16px;
    --transition:     0.25s ease;

    /* Override Bootstrap 5 CSS variables to match dark theme */
    --bs-body-bg:              #0d1b2a;
    --bs-body-color:           #f0f4ff;
    --bs-secondary-color:      rgba(240,244,255,0.65);
    --bs-table-color:          #f0f4ff;
    --bs-table-striped-color:  #f0f4ff;
    --bs-table-hover-color:    #f0f4ff;
    --bs-table-active-color:   #f0f4ff;
    --bs-table-bg:             transparent;
    --bs-table-striped-bg:     rgba(255,255,255,0.03);
    --bs-table-hover-bg:       rgba(255,255,255,0.05);
    --bs-table-border-color:   rgba(255,255,255,0.08);
    --bs-border-color:         rgba(255,255,255,0.12);
    --bs-heading-color:        #f0f4ff;
    --bs-link-color:           #4f8ef7;
    --bs-code-color:           #06d6a0;
    --bs-form-control-bg:      rgba(255,255,255,0.08);
    --bs-form-control-color:   #f0f4ff;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; }

html, body {
    height: 100%;
    margin: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-size: 14px;
    overflow-x: hidden;
    color-scheme: dark;
}

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }

/* ============================================================
   SIDEBAR
============================================================ */
.sidebar {
    position: fixed;
    top: 0; left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: linear-gradient(180deg, #0d1b2a 0%, #162032 60%, #0d1b2a 100%);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: transform var(--transition);
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--glass-border);
    min-height: 72px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px; height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(79, 142, 247, 0.4);
}

.brand-name {
    display: block;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 1.5px;
    color: var(--text-primary);
    line-height: 1.2;
}
.brand-sub {
    display: block;
    font-size: 10px;
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.sidebar-close {
    color: var(--text-muted);
    padding: 4px;
    line-height: 1;
}
.sidebar-close:hover { color: var(--text-primary); }

/* Nav */
.sidebar-nav { flex: 1; padding: 16px 12px; }

.nav-section-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    text-transform: uppercase;
    padding: 8px 10px 6px;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    color: rgba(240, 244, 255, 0.65);
    font-weight: 500;
    margin-bottom: 2px;
    transition: all var(--transition);
}

.sidebar-nav .nav-link i {
    font-size: 16px;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
    transition: color var(--transition);
}

.sidebar-nav .nav-link:hover {
    background: var(--glass-bg);
    color: var(--text-primary);
    transform: translateX(3px);
}

.sidebar-nav .nav-link.active {
    background: linear-gradient(135deg, rgba(79, 142, 247, 0.25), rgba(6, 214, 160, 0.12));
    color: var(--text-primary);
    border: 1px solid rgba(79, 142, 247, 0.25);
    box-shadow: 0 2px 12px rgba(79, 142, 247, 0.15);
}

.sidebar-nav .nav-link.active i { color: var(--primary); }

/* Sidebar footer */
.sidebar-footer {
    padding: 16px 16px 20px;
    border-top: 1px solid var(--glass-border);
}
.sidebar-user { display: flex; align-items: center; gap: 10px; }
.user-avatar { font-size: 28px; color: var(--primary); line-height: 1; }
.user-name  { display: block; font-weight: 600; font-size: 13px; color: var(--text-primary); }
.user-role  { display: block; font-size: 11px; color: var(--text-muted); }

/* Mobile sidebar overlay */
.sidebar-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 999;
    display: none;
    backdrop-filter: blur(2px);
}
.sidebar-overlay.active { display: block; }

/* Mobile: hide sidebar off-screen */
@media (max-width: 991.98px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
}

/* ============================================================
   MAIN WRAPPER & TOPBAR
============================================================ */
.main-wrapper {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition);
}
@media (max-width: 991.98px) {
    .main-wrapper { margin-left: 0; }
}

.topbar {
    height: var(--topbar-height);
    background: rgba(13, 27, 42, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 12px;
    position: sticky; top: 0;
    z-index: 100;
}

.topbar-toggle {
    color: var(--text-primary);
    padding: 6px;
    border-radius: 8px;
    line-height: 1;
}
.topbar-toggle:hover { background: var(--glass-bg); color: var(--primary); }

.topbar-title h6 { font-size: 15px; font-weight: 600; color: var(--text-primary); }

/* ============================================================
   PAGE CONTENT
============================================================ */
.page-content {
    flex: 1;
    padding: 24px;
    background: radial-gradient(ellipse at top left, rgba(79,142,247,0.06) 0%, transparent 60%),
                radial-gradient(ellipse at bottom right, rgba(6,214,160,0.05) 0%, transparent 60%),
                var(--bg-dark);
}
@media (max-width: 575.98px) { .page-content { padding: 16px; } }

/* Page header */
.page-header {
    margin-bottom: 24px;
}
.page-header h4 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 4px;
}
.page-header p {
    color: var(--text-muted);
    font-size: 13px;
    margin: 0;
}

/* ============================================================
   GLASS CARDS
============================================================ */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--card-radius);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    overflow: hidden;
}

.glass-card .card-header {
    background: rgba(255,255,255,0.04);
    border-bottom: 1px solid var(--glass-border);
    padding: 16px 20px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.glass-card .card-body { padding: 20px; }

/* ── Stat Cards ── */
.stat-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--card-radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: transform var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}
.stat-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 60%);
    pointer-events: none;
}
.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.stat-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}
.stat-icon.blue  { background: rgba(79,142,247,0.15); color: var(--primary); box-shadow: 0 4px 15px rgba(79,142,247,0.2); }
.stat-icon.green { background: rgba(6,214,160,0.15);  color: var(--accent);  box-shadow: 0 4px 15px rgba(6,214,160,0.2); }
.stat-icon.amber { background: rgba(245,158,11,0.15); color: var(--warning); box-shadow: 0 4px 15px rgba(245,158,11,0.2); }
.stat-icon.red   { background: rgba(239,68,68,0.15);  color: var(--danger);  box-shadow: 0 4px 15px rgba(239,68,68,0.2); }
.stat-icon.purple{ background: rgba(168,85,247,0.15); color: #a855f7;        box-shadow: 0 4px 15px rgba(168,85,247,0.2); }
.stat-icon.cyan  { background: rgba(6,182,212,0.15);  color: #06b6d4;        box-shadow: 0 4px 15px rgba(6,182,212,0.2); }

.stat-info .stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
}
.stat-info .stat-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 2px;
}

/* ── Progress bar ── */
.capacity-bar { border-radius: 8px; background: rgba(255,255,255,0.08); overflow: hidden; }
.capacity-bar .progress-bar { border-radius: 8px; transition: width 0.6s ease; }

/* ============================================================
   DATATABLES DARK THEME OVERRIDES
============================================================ */
.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
    background: rgba(255,255,255,0.08) !important;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary) !important;
    padding: 6px 12px;
    outline: none;
}
.dataTables_wrapper .dataTables_filter input:focus,
.dataTables_wrapper .dataTables_length select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,142,247,0.2);
}
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_filter label,
.dataTables_wrapper .dataTables_length label {
    color: var(--text-muted);
}
.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: 8px !important;
    color: var(--text-muted) !important;
    border: none !important;
    background: none !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--glass-bg) !important;
    color: var(--text-primary) !important;
    border: none !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: var(--primary) !important;
    color: #fff !important;
    border: none !important;
}

/* Tables */
.table {
    color: #f0f4ff;
    --bs-table-bg: transparent;
    --bs-table-hover-bg: rgba(255,255,255,0.04);
    border-color: var(--glass-border);
}
.table thead th {
    background: rgba(255,255,255,0.05);
    border-color: var(--glass-border);
    color: rgba(240,244,255,0.65);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 700;
    white-space: nowrap;
    padding: 12px 14px;
}
.table tbody td {
    border-color: rgba(255,255,255,0.05);
    padding: 12px 14px;
    vertical-align: middle;
    color: #f0f4ff;
}
.table-hover tbody tr:hover { background: rgba(255,255,255,0.04); }

/* ============================================================
   FORMS
============================================================ */
/* White dropdown arrow for form-select on dark background */
.form-select {
    --bs-form-select-bg-img: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23f0f4ff' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
}
.form-control, .form-select {
    background: rgba(255,255,255,0.08) !important;
    border: 1px solid var(--glass-border) !important;
    color: var(--text-primary) !important;
    border-radius: 10px;
    padding: 10px 14px;
    transition: all var(--transition);
}
.form-select { padding-right: 2.5rem; }
.form-control:focus, .form-select:focus {
    background: rgba(255,255,255,0.12) !important;
    border-color: var(--primary) !important;
    color: var(--text-primary) !important;
    box-shadow: 0 0 0 3px rgba(79,142,247,0.2) !important;
    outline: none;
}
.form-control::placeholder { color: var(--text-muted); }
.form-select option { background: var(--bg-mid); color: var(--text-primary); }
.form-label { font-size: 12px; font-weight: 600; color: rgba(240,244,255,0.75); margin-bottom: 6px; letter-spacing: 0.3px; }
/* Ensure inputs in modals and everywhere stay light text */
input, select, textarea {
    color: var(--text-primary) !important;
}
input::placeholder, textarea::placeholder { color: var(--text-muted) !important; }

/* ============================================================
   TABS
============================================================ */
.nav-tabs {
    border-bottom: 1px solid var(--glass-border);
    gap: 4px;
}
.nav-tabs .nav-link {
    color: rgba(240,244,255,0.55);
    border: 1px solid transparent;
    border-radius: 10px 10px 0 0;
    padding: 9px 20px;
    font-weight: 600;
    font-size: 13px;
    transition: all var(--transition);
}
.nav-tabs .nav-link:hover {
    color: var(--text-primary);
    border-color: var(--glass-border);
    background: var(--glass-bg);
}
.nav-tabs .nav-link.active {
    color: var(--primary);
    background: rgba(79,142,247,0.1);
    border-color: var(--glass-border) var(--glass-border) transparent;
}

/* ============================================================
   BUTTONS
============================================================ */
.btn { border-radius: 10px; font-weight: 600; font-size: 13px; padding: 9px 18px; transition: all var(--transition); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border: none; box-shadow: 0 4px 15px rgba(79,142,247,0.35); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(79,142,247,0.45); filter: brightness(1.1); }
.btn-success { background: linear-gradient(135deg, var(--accent), #059669); border: none; box-shadow: 0 4px 15px rgba(6,214,160,0.3); color: #0d1b2a; }
.btn-success:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(6,214,160,0.4); color: #0d1b2a; }
.btn-danger  { background: linear-gradient(135deg, #ef4444, #dc2626); border: none; }
.btn-warning { background: linear-gradient(135deg, #f59e0b, #d97706); border: none; color: #0d1b2a; }
.btn-outline-light { border-color: var(--glass-border); color: var(--text-muted); }
.btn-outline-light:hover { background: var(--glass-bg); color: var(--text-primary); border-color: var(--primary); }
.btn-sm { padding: 6px 12px; font-size: 12px; border-radius: 8px; }

/* ============================================================
   BADGES
============================================================ */
.badge-role {
    font-size: 10px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.role-athlete  { background: rgba(79,142,247,0.2);  color: #93c5fd; border: 1px solid rgba(79,142,247,0.3); }
.role-coach    { background: rgba(6,214,160,0.2);   color: #6ee7b7; border: 1px solid rgba(6,214,160,0.3); }
.role-staff    { background: rgba(168,85,247,0.2);  color: #d8b4fe; border: 1px solid rgba(168,85,247,0.3); }
.role-chaperon { background: rgba(245,158,11,0.2);  color: #fcd34d; border: 1px solid rgba(245,158,11,0.3); }
.role-twg      { background: rgba(239,68,68,0.2);   color: #fca5a5; border: 1px solid rgba(239,68,68,0.3); }
.role-official { background: rgba(6,182,212,0.2);   color: #67e8f9; border: 1px solid rgba(6,182,212,0.3); }
.role-other    { background: rgba(255,255,255,0.08); color: var(--text-muted); border: 1px solid var(--glass-border); }

/* Status badges */
.badge-status-full      { background: rgba(239,68,68,0.15);  color: #fca5a5; border: 1px solid rgba(239,68,68,0.25); }
.badge-status-available { background: rgba(6,214,160,0.15);  color: #6ee7b7; border: 1px solid rgba(6,214,160,0.25); }
.badge-status-empty     { background: rgba(255,255,255,0.07); color: var(--text-muted); border: 1px solid var(--glass-border); }

/* ============================================================
   MODALS
============================================================ */
.modal-content {
    background: var(--bg-mid);
    border: 1px solid var(--glass-border);
    border-radius: var(--card-radius);
    color: var(--text-primary);
}
.modal-header {
    border-bottom: 1px solid var(--glass-border);
    padding: 18px 24px;
}
.modal-header .modal-title { font-weight: 700; }
.modal-body  { padding: 24px; }
.modal-footer { border-top: 1px solid var(--glass-border); padding: 16px 24px; }
.btn-close { filter: invert(1) grayscale(1); opacity: 0.6; }
.btn-close:hover { opacity: 1; }

/* ============================================================
   ASSIGNMENT PANEL
============================================================ */
.assign-card {
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 14px 16px;
    background: rgba(255,255,255,0.04);
    margin-bottom: 8px;
    cursor: pointer;
    transition: all var(--transition);
}
.assign-card:hover {
    background: rgba(79,142,247,0.1);
    border-color: var(--primary);
}
.assign-card.selected {
    background: rgba(79,142,247,0.15);
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(79,142,247,0.25);
}

/* Bulk assign rows */
.bulk-delegate-row:hover { background: rgba(255,255,255,0.05); }
.bulk-room-row:hover     { background: rgba(79,142,247,0.08); }
.bulk-room-row.selected  { background: rgba(79,142,247,0.15); border-left: 3px solid var(--primary); }

/* Capacity fill bar */
.fill-bar { height: 6px; border-radius: 3px; background: rgba(255,255,255,0.08); overflow: hidden; margin-top: 6px; }
.fill-bar-inner { height: 100%; border-radius: 3px; transition: width 0.4s ease; }
.fill-0    .fill-bar-inner { background: var(--accent); }
.fill-mid  .fill-bar-inner { background: var(--warning); }
.fill-full .fill-bar-inner { background: var(--danger); }

/* ============================================================
   PRINT STYLES
============================================================ */
@media print {
    .sidebar, .topbar, .no-print { display: none !important; }
    .main-wrapper { margin-left: 0 !important; }
    .page-content { padding: 0 !important; background: #fff !important; color: #000 !important; }
    .glass-card { background: #fff !important; border: 1px solid #ccc !important; }
    .table { color: #000 !important; }
    .table thead th { background: #f0f0f0 !important; color: #333 !important; }
    .table tbody td { border-color: #ddd !important; }
    body { font-size: 12px !important; }
    .print-header { display: block !important; }
}
.print-header { display: none; }

/* ============================================================
   UTILITIES
============================================================ */
.text-accent { color: var(--accent) !important; }
.text-muted-custom { color: var(--text-muted) !important; }
.border-glass { border-color: var(--glass-border) !important; }
.rounded-xl { border-radius: var(--card-radius) !important; }

/* Loading shimmer */
@keyframes shimmer {
    0%   { background-position: -200% 0; }
    100% { background-position:  200% 0; }
}
.shimmer {
    background: linear-gradient(90deg, rgba(255,255,255,0.03) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.03) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
}