/* ═══════════════════════════════════════════════════════════════
   Golden-IT Office Finance Management — Custom Styles
   ═══════════════════════════════════════════════════════════════ */

:root {
    --sidebar-width: 250px;
    --sidebar-bg: #1a1d29;
    --sidebar-hover: #2a2d3a;
    --sidebar-active: #3a7bd5;
    --top-bar-height: 60px;
}

* {
    font-family: 'Noto Sans Bengali', 'Segoe UI', sans-serif;
}

body {
    background-color: #f0f2f5;
    min-height: 100vh;
}

/* ─── Login Page ────────────────────────────────────────────── */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1d29 0%, #3a7bd5 100%);
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
    color: #1a1d29;
}

.login-header i {
    color: #3a7bd5;
}

.login-header h3 {
    margin-top: 10px;
    font-weight: 700;
}

/* ─── Sidebar ───────────────────────────────────────────────── */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    color: white;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease;
    overflow: hidden;
}

.sidebar.collapsed {
    width: 60px;
}

.sidebar.collapsed .sidebar-brand span,
.sidebar.collapsed .sidebar-nav .nav-link span,
.sidebar.collapsed .sidebar-footer .user-info span,
.sidebar.collapsed .sidebar-footer .btn {
    display: none;
}

.sidebar.collapsed .sidebar-nav .nav-link {
    text-align: center;
    padding: 12px;
}

.sidebar.collapsed .sidebar-nav .nav-link i {
    margin-right: 0;
    font-size: 1.2rem;
}

.sidebar-brand {
    padding: 20px;
    font-size: 1.3rem;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-brand i {
    font-size: 1.5rem;
    color: #3a7bd5;
}

.sidebar-nav {
    flex: 1;
    padding: 10px 0;
    overflow-y: auto;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav .nav-link:hover {
    background: var(--sidebar-hover);
    color: white;
}

.sidebar-nav .nav-link.active {
    background: var(--sidebar-hover);
    color: white;
    border-left-color: var(--sidebar-active);
}

.sidebar-nav .nav-link i {
    margin-right: 12px;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
}

/* ─── Main Content ──────────────────────────────────────────── */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

.sidebar.collapsed ~ .main-content {
    margin-left: 60px;
}

.top-bar {
    height: var(--top-bar-height);
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 999;
}

.sidebar-toggle {
    color: #333;
    text-decoration: none;
}

.top-bar-right {
    display: flex;
    align-items: center;
}

/* ─── Stat Cards ────────────────────────────────────────────── */
.stat-card {
    border-radius: 12px;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

/* ─── Cards ─────────────────────────────────────────────────── */
.card {
    border-radius: 12px;
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
    border-bottom: none;
    padding: 15px 20px;
}

/* ─── Tables ────────────────────────────────────────────────── */
.table th {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #6c757d;
}

.table td {
    vertical-align: middle;
}

/* ─── Modals ────────────────────────────────────────────────── */
.modal-content {
    border-radius: 12px;
    border: none;
}

.modal-header {
    border-radius: 12px 12px 0 0;
}

/* ─── Responsive ────────────────────────────────────────────── */
/* Tablet: collapsed sidebar */
@media (max-width: 992px) {
    .sidebar:not(.mobile-open) {
        width: 60px;
    }
    .sidebar:not(.mobile-open) .sidebar-brand span,
    .sidebar:not(.mobile-open) .sidebar-nav .nav-link span,
    .sidebar:not(.mobile-open) .sidebar-footer .user-info span,
    .sidebar:not(.mobile-open) .sidebar-footer .btn {
        display: none;
    }
    .sidebar:not(.mobile-open) .sidebar-nav .nav-link {
        text-align: center;
        padding: 12px;
    }
    .sidebar:not(.mobile-open) .sidebar-nav .nav-link i {
        margin-right: 0;
        font-size: 1.2rem;
    }
    .main-content {
        margin-left: 60px;
    }
    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}

/* Mobile: overlay sidebar */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width) !important;
        transition: transform 0.3s ease;
        z-index: 1050;
    }
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    .sidebar.mobile-open .sidebar-brand span,
    .sidebar.mobile-open .sidebar-nav .nav-link span,
    .sidebar.mobile-open .sidebar-footer .user-info span,
    .sidebar.mobile-open .sidebar-footer .btn {
        display: inline-flex !important;
    }
    .sidebar.mobile-open .sidebar-nav .nav-link {
        text-align: left !important;
        padding: 12px 20px !important;
    }
    .sidebar.mobile-open .sidebar-nav .nav-link i {
        margin-right: 12px !important;
    }
    .main-content {
        margin-left: 0 !important;
    }
    .mobile-menu-btn {
        display: inline-flex !important;
    }
    .desktop-sidebar-toggle {
        display: none !important;
    }
    .sidebar-backdrop.show {
        display: block;
    }
    .top-bar {
        padding: 0 10px;
    }
    h4 { font-size: 1.1rem; }
    .card-body { padding: 12px; }
    .table { font-size: 0.85rem; }
    .toggle-label { display: none; }
    .top-bar-date { display: none; }
}

/* ─── Alerts ────────────────────────────────────────────────── */
.alert {
    border-radius: 10px;
    border: none;
}

/* ─── Badge ─────────────────────────────────────────────────── */
.badge {
    font-weight: 500;
    padding: 5px 10px;
}

/* ─── Print Styles ──────────────────────────────────────────── */
@media print {
    .sidebar, .top-bar, .btn, .modal {
        display: none !important;
    }
    .main-content {
        margin-left: 0 !important;
    }
}

/* ─── Sidebar Backdrop (Mobile) ─────────────────────────────── */
.sidebar-backdrop {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1040;
    backdrop-filter: blur(2px);
}

.mobile-menu-btn { display: none; }

/* ─── Toggle Buttons ─────────────────────────────────────────── */
.toggle-btns {
    display: flex;
    align-items: center;
    gap: 6px;
}

.toggle-btns .btn {
    padding: 4px 10px;
    font-size: 0.82rem;
    border-radius: 8px;
}

.login-toggles {
    position: fixed;
    top: 15px;
    right: 15px;
    display: flex;
    gap: 8px;
    z-index: 1100;
}

.login-toggles .btn {
    backdrop-filter: blur(10px);
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    border-radius: 10px;
    padding: 6px 14px;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.login-toggles .btn:hover {
    background: rgba(255,255,255,0.3);
    color: white;
}

/* ─── Dark Mode ──────────────────────────────────────────────── */
[data-bs-theme="dark"] body {
    background-color: #0f1219;
}

[data-bs-theme="dark"] .top-bar {
    background: #1a1e2e;
    box-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

[data-bs-theme="dark"] .sidebar-toggle,
[data-bs-theme="dark"] .mobile-menu-btn {
    color: #ccc;
}

[data-bs-theme="dark"] .sidebar {
    background: #0d1017;
    border-right: 1px solid rgba(255,255,255,0.05);
}

[data-bs-theme="dark"] .login-container {
    background: linear-gradient(135deg, #0a0d14 0%, #1a3a6b 100%);
}

[data-bs-theme="dark"] .login-card {
    background: #1a1e2e;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

[data-bs-theme="dark"] .login-header {
    color: #e0e0e0;
}

[data-bs-theme="dark"] .login-card .text-muted {
    color: #9ca3af !important;
}

[data-bs-theme="dark"] .stat-card {
    border: 1px solid rgba(255,255,255,0.06);
}

[data-bs-theme="dark"] .login-toggles .btn {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
}