/* =====================================================================
   Design tokens
   ===================================================================== */
:root {
    --brand: #4f46e5;
    --brand-rgb: 79, 70, 229;
    --brand-dark: #4338ca;
    --brand-light: #eef2ff;

    --ink-900: #0f172a;
    --ink-800: #1e293b;
    --ink-700: #334155;
    --ink-500: #64748b;
    --ink-400: #94a3b8;

    --surface: #f6f7fb;
    --surface-card: #ffffff;
    --border: #e6e9f0;
    --border-soft: #eef0f5;

    --success: #16a34a;
    --success-bg: #dcfce7;
    --danger: #dc2626;
    --danger-bg: #fee2e2;
    --warning: #d97706;
    --warning-bg: #fef3c7;
    --info: #0891b2;
    --info-bg: #cffafe;

    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-pill: 999px;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
    --shadow: 0 4px 14px rgba(15, 23, 42, .07), 0 1px 2px rgba(15, 23, 42, .04);
    --shadow-lg: 0 16px 32px rgba(15, 23, 42, .12);

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { scrollbar-width: thin; scrollbar-color: var(--ink-400) transparent; }
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: var(--ink-400); border-radius: var(--radius-pill); }
::-webkit-scrollbar-track { background: transparent; }

html { scroll-behavior: smooth; }

body {
    background-color: var(--surface);
    font-family: var(--font-sans);
    color: var(--ink-800);
    -webkit-font-smoothing: antialiased;
}

/* --- Dashboard statistic tiles --- */
.dashboard-stat {
    border: 0 !important;
    color: #fff !important;
    box-shadow: var(--shadow);
}
.dashboard-stat .small,
.dashboard-stat .fs-4,
.dashboard-stat .text-muted,
.dashboard-stat .text-danger {
    color: #fff !important;
}
.dashboard-stat-green { background: #16a34a !important; }
.dashboard-stat-red { background: #dc2626 !important; }
.dashboard-stat-blue { background: #2563eb !important; }
.dashboard-stat-yellow { background: #ca8a04 !important; }
.dashboard-stat-row .dashboard-stat {
    min-height: 134px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

h1, h2, h3, h4, h5, h6 { font-family: var(--font-sans); font-weight: 700; color: var(--ink-900); letter-spacing: -0.01em; }
.text-muted { color: var(--ink-500) !important; }

a { color: var(--brand); }
a:hover { color: var(--brand-dark); }

:focus-visible { outline: 2px solid rgba(var(--brand-rgb), .45); outline-offset: 2px; }

/* =====================================================================
   App shell: left sidebar + topbar
   ===================================================================== */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}
.app-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

/* --- Sidebar --- */
.app-sidebar {
    background: linear-gradient(180deg, var(--ink-900) 0%, #131c2e 100%);
    color: #cbd5e1;
    width: 258px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    transition: width 0.2s ease, transform 0.25s ease;
    overflow: hidden;
}
.sidebar-brand {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 1.1rem 1.15rem;
    min-height: 64px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    white-space: nowrap;
}
.sidebar-brand-text { font-size: 1.05rem; letter-spacing: -0.01em; }
.sidebar-close-btn {
    background: none;
    border: none;
    color: #cbd5e1;
    font-size: 1.1rem;
    line-height: 1;
    flex-shrink: 0;
}
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 0.65rem;
}
.sidebar-nav .nav-item { margin-bottom: 2px; }
.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: #b9c2d4;
    padding: 0.55rem 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    transition: background-color .15s ease, color .15s ease;
}
.sidebar-nav .nav-link i:first-child { width: 1.1rem; text-align: center; flex-shrink: 0; font-size: 1rem; opacity: .9; }
.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link:focus {
    background-color: rgba(255,255,255,0.07);
    color: #fff;
}
.sidebar-nav .nav-link.active {
    background: rgba(var(--brand-rgb), .22);
    color: #fff;
}
.sidebar-nav .submenu-toggle .submenu-caret {
    margin-left: auto;
    font-size: 0.65rem;
    transition: transform 0.2s ease;
}
.sidebar-nav .submenu-toggle[aria-expanded="true"] .submenu-caret,
.sidebar-nav .submenu-toggle:not(.collapsed) .submenu-caret {
    transform: rotate(180deg);
}
.sidebar-submenu {
    list-style: none;
    margin: 2px 0 4px;
    padding: 2px 0 2px 0.5rem;
    border-left: 1px solid rgba(255,255,255,0.08);
    margin-left: 1.35rem;
}
.sidebar-submenu .nav-link {
    padding: 0.42rem 0.65rem;
    font-size: 0.85rem;
}
.sidebar-divider {
    border-color: rgba(255,255,255,0.1);
    margin: 0.5rem 0.75rem;
}

/* --- Topbar --- */
.app-topbar {
    background-color: #fff;
    border-bottom: 1px solid var(--border);
    padding: 0.65rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    position: sticky;
    top: 0;
    z-index: 1030;
    box-shadow: 0 1px 0 rgba(15,23,42,.02);
}
.sidebar-toggle-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--ink-800);
    width: 38px;
    height: 38px;
    font-size: 1.05rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background-color .15s ease;
}
.sidebar-toggle-btn:hover { background-color: var(--border-soft); }
.topbar-brand i { font-size: 1.3rem; color: var(--brand); }

/* --- Off-canvas backdrop (mobile only) --- */
.app-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    z-index: 1035;
    backdrop-filter: blur(1px);
}

/* --- Mobile (<992px): sidebar is a closed-by-default off-canvas panel --- */
@media (max-width: 991.98px) {
    .app-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: 264px;
        transform: translateX(-100%);
        z-index: 1040;
    }
    body.sidebar-mobile-open .app-sidebar {
        transform: translateX(0);
    }
    body.sidebar-mobile-open .app-overlay {
        display: block;
    }
}

/* --- Desktop (>=992px): sidebar occupies layout space; toggle collapses it away --- */
@media (min-width: 992px) {
    .sidebar-close-btn { display: none; }
    .app-sidebar {
        position: sticky;
        top: 0;
        height: 100vh;
        align-self: flex-start;
    }
    body.sidebar-collapsed .app-sidebar {
        width: 0;
        border: 0;
    }
}

.app-navbar {
    background-color: var(--ink-900);
}

.app-content { max-width: 1600px; }

/* =====================================================================
   Cards
   ===================================================================== */
.card {
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-lg);
}
.card-header {
    background-color: #fff;
    border-bottom: 1px solid var(--border-soft);
    font-weight: 600;
    border-top-left-radius: var(--radius-lg) !important;
    border-top-right-radius: var(--radius-lg) !important;
}
a .card:hover, .card.card-link-hover:hover {
    box-shadow: var(--shadow);
    transform: translateY(-1px);
    transition: box-shadow .15s ease, transform .15s ease;
}

.stat-card {
    color: #fff;
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.stat-card .stat-value {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}
.stat-card.bg-primary { background: linear-gradient(135deg, #4f46e5, #6366f1) !important; }
.stat-card.bg-info { background: linear-gradient(135deg, #0891b2, #06b6d4) !important; }
.stat-card.bg-success { background: linear-gradient(135deg, #15803d, #22c55e) !important; }
.stat-card.bg-danger { background: linear-gradient(135deg, #b91c1c, #ef4444) !important; }
.stat-card.bg-warning { background: linear-gradient(135deg, #b45309, #f59e0b) !important; }
.stat-card.bg-purple { background: linear-gradient(135deg, #6d28d9, #8b5cf6) !important; }
.stat-card.bg-secondary { background: linear-gradient(135deg, #475569, #64748b) !important; }
.bg-purple { background-color: #6f42c1; }
.text-bg-purple { background-color: #6f42c1 !important; color: #fff !important; }

/* =====================================================================
   Buttons
   ===================================================================== */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    transition: filter .12s ease, box-shadow .12s ease, transform .12s ease;
}
.btn:active { transform: translateY(1px); }
.btn-sm { border-radius: 7px; }
.btn-dark { background-color: var(--ink-900); border-color: var(--ink-900); }
.btn-dark:hover, .btn-dark:focus { background-color: #000; border-color: #000; }
.btn-primary { background-color: var(--brand); border-color: var(--brand); }
.btn-primary:hover, .btn-primary:focus { background-color: var(--brand-dark); border-color: var(--brand-dark); }
.btn-outline-primary { color: var(--brand); border-color: var(--brand); }
.btn-outline-primary:hover { background-color: var(--brand); border-color: var(--brand); }
.btn-outline-secondary { color: var(--ink-700); border-color: var(--border); }
.btn-outline-secondary:hover { background-color: var(--ink-800); border-color: var(--ink-800); color: #fff; }
.btn-outline-danger:hover { box-shadow: 0 4px 10px rgba(220,38,38,.25); }
.btn-outline-primary:hover, .btn-primary:hover, .btn-dark:hover, .btn-success:hover, .btn-danger:hover {
    box-shadow: var(--shadow-sm);
}
.btn i { vertical-align: -1px; }

/* =====================================================================
   Forms
   ===================================================================== */
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border-color: var(--border);
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
}
.form-control:focus, .form-select:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(var(--brand-rgb), .15);
}
.form-label {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--ink-700);
    margin-bottom: 0.35rem;
}
.form-text { color: var(--ink-500); font-size: 0.78rem; }
.input-group-text { background-color: var(--surface); border-color: var(--border); }
.form-check-input:checked { background-color: var(--brand); border-color: var(--brand); }
.form-check-input:focus { box-shadow: 0 0 0 3px rgba(var(--brand-rgb), .15); }

/* =====================================================================
   Tables
   ===================================================================== */
.table {
    --bs-table-hover-bg: rgba(var(--brand-rgb), .035);
    font-size: 0.9rem;
}
.table thead th {
    background-color: var(--surface);
    color: var(--ink-500);
    font-weight: 700;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--border);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}
.table td { border-color: var(--border-soft); padding-top: 0.65rem; padding-bottom: 0.65rem; vertical-align: middle; }
.table > :not(caption) > * > * { box-shadow: none; }

/* =====================================================================
   Badges & alerts (soft/pill style)
   ===================================================================== */
.badge {
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 0.72rem;
    padding: 0.4em 0.75em;
    letter-spacing: 0.01em;
}
.text-bg-primary   { background-color: var(--brand-light) !important; color: var(--brand-dark) !important; }
.text-bg-secondary { background-color: #eef1f5 !important; color: var(--ink-700) !important; }
.text-bg-success   { background-color: var(--success-bg) !important; color: #166534 !important; }
.text-bg-danger    { background-color: var(--danger-bg) !important; color: #991b1b !important; }
.text-bg-warning   { background-color: var(--warning-bg) !important; color: #92400e !important; }
.text-bg-info      { background-color: var(--info-bg) !important; color: #155e75 !important; }
.text-bg-dark      { background-color: var(--ink-800) !important; color: #fff !important; }

.alert { border: 1px solid transparent; border-radius: var(--radius); font-size: 0.9rem; }
.alert-success { background-color: var(--success-bg); color: #14532d; }
.alert-danger  { background-color: var(--danger-bg); color: #7f1d1d; }
.alert-warning { background-color: var(--warning-bg); color: #78350f; }
.alert-info    { background-color: var(--info-bg); color: #164e63; }

/* =====================================================================
   Dropdowns, modals, pagination, tabs, progress
   ===================================================================== */
.dropdown-menu {
    border: 1px solid var(--border-soft);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    padding: 0.4rem;
}
.dropdown-item { border-radius: var(--radius-sm); font-size: 0.88rem; padding: 0.5rem 0.7rem; }
.dropdown-item:hover, .dropdown-item:focus { background-color: var(--brand-light); color: var(--brand-dark); }

.modal-content { border: none; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.modal-header, .modal-footer { border-color: var(--border-soft); }

.nav-tabs { border-bottom-color: var(--border); }
.nav-tabs .nav-link { border: none; color: var(--ink-500); font-weight: 600; font-size: 0.88rem; border-radius: 0; padding: 0.6rem 0.9rem; }
.nav-tabs .nav-link.active { color: var(--brand); background: none; border-bottom: 2px solid var(--brand); }

.pagination .page-link { border-color: var(--border); color: var(--ink-700); border-radius: var(--radius-sm); margin: 0 2px; }
.pagination .page-item.active .page-link { background-color: var(--brand); border-color: var(--brand); }

.progress { border-radius: var(--radius-pill); background-color: var(--border-soft); }
.progress-bar { background-color: var(--brand); }

/* =====================================================================
   Login page
   ===================================================================== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(circle at 15% 15%, rgba(99,102,241,.35), transparent 45%),
        radial-gradient(circle at 85% 85%, rgba(56,189,248,.25), transparent 45%),
        linear-gradient(135deg, var(--ink-900), #1e2942);
    padding: 1rem;
}
.login-card {
    max-width: 400px;
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: none;
}

/* =====================================================================
   Misc app utilities
   ===================================================================== */
.item-row .remove-row { cursor: pointer; }
.print-only { display: none; }

/* Statement tables: full grid lines on screen and in print/PDF */
.statement-table,
.statement-table > :not(caption) > * > * {
    border: 1px solid #adb5bd !important;
}
.statement-table thead th {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
}

@media print {
    .no-print { display: none !important; }
    body { background: #fff; }
    .container-fluid { padding: 0 !important; }
    .app-sidebar, .app-topbar, .app-overlay, footer { display: none !important; }
    .app-main { display: block !important; }
    .print-only { display: block !important; }
    .card { box-shadow: none !important; border: 1px solid #dee2e6 !important; }
}