/* =============================================
   Solvency — Design System
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Cairo:wght@300;400;500;600;700;800&display=swap');

/* ---------- CSS Variables ---------- */
:root {
    /* Dark Theme (Default) */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #1a1f35;
    --bg-card-hover: #1f2747;
    --bg-input: #151b2e;
    --bg-sidebar: #0d1221;
    --bg-modal-overlay: rgba(0,0,0,0.7);
    --border: #1e293b;
    --border-light: #2a3550;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: rgba(59,130,246,0.15);
    --success: #10b981;
    --success-light: rgba(16,185,129,0.15);
    --warning: #f59e0b;
    --warning-light: rgba(245,158,11,0.15);
    --danger: #ef4444;
    --danger-light: rgba(239,68,68,0.15);
    --info: #06b6d4;
    --info-light: rgba(6,182,212,0.15);
    --purple: #8b5cf6;
    --purple-light: rgba(139,92,246,0.15);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.5);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font-ar: 'Cairo', sans-serif;
    --font-en: 'Inter', sans-serif;
    --sidebar-width: 260px;
    --header-height: 64px;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #f1f5f9;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-input: #f8fafc;
    --bg-sidebar: #ffffff;
    --bg-modal-overlay: rgba(0,0,0,0.4);
    --border: #e2e8f0;
    --border-light: #cbd5e1;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.15);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-ar);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}
[dir="ltr"] body { font-family: var(--font-en); }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; }
input, select, textarea, button { font-family: inherit; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ---------- Login Page ---------- */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0e1a 0%, #1a1040 50%, #0d1221 100%);
    position: relative;
    overflow: hidden;
}
.login-container::before {
    content: '';
    position: absolute;
    width: 500px; height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59,130,246,0.15), transparent 70%);
    top: -100px; right: -100px;
    animation: loginGlow 8s ease-in-out infinite alternate;
}
.login-container::after {
    content: '';
    position: absolute;
    width: 400px; height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139,92,246,0.1), transparent 70%);
    bottom: -80px; left: -80px;
    animation: loginGlow 6s ease-in-out infinite alternate-reverse;
}
@keyframes loginGlow {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.3); opacity: 1; }
}

.login-card {
    background: rgba(26, 31, 53, 0.85);
    backdrop-filter: blur(24px);
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.login-logo {
    text-align: center;
    margin-bottom: 32px;
}
.login-logo .logo-icon {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
    margin-bottom: 16px;
    box-shadow: 0 8px 24px rgba(59,130,246,0.3);
}
.login-logo h1 {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}
.login-logo p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 4px;
}
.login-error {
    background: var(--danger-light);
    color: var(--danger);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    margin-bottom: 16px;
    display: none;
    border: 1px solid rgba(239,68,68,0.2);
}
.login-error.show { display: block; animation: shakeX 0.5s; }
@keyframes shakeX {
    0%,100% { transform: translateX(0); }
    20%,60% { transform: translateX(-8px); }
    40%,80% { transform: translateX(8px); }
}

/* ---------- Form Controls ---------- */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 15px;
    transition: var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}
.form-control::placeholder { color: var(--text-muted); }
.input-icon-wrap {
    position: relative;
}
.input-icon-wrap .icon {
    position: absolute;
    top: 50%; transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 18px;
    pointer-events: none;
}
[dir="rtl"] .input-icon-wrap .icon { right: 14px; }
[dir="ltr"] .input-icon-wrap .icon { left: 14px; }
[dir="rtl"] .input-icon-wrap .form-control { padding-right: 44px; }
[dir="ltr"] .input-icon-wrap .form-control { padding-left: 44px; }

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 12px center;
    padding-left: 36px;
}
[dir="ltr"] select.form-control {
    background-position: right 12px center;
    padding-left: 16px;
    padding-right: 36px;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    line-height: 1.4;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
    background: linear-gradient(135deg, var(--accent), #2563eb);
    color: #fff;
    box-shadow: 0 4px 12px rgba(59,130,246,0.3);
}
.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    box-shadow: 0 6px 20px rgba(59,130,246,0.4);
    transform: translateY(-1px);
}
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-warning { background: var(--warning); color: #000; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
}
.btn-outline:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
}
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}
.btn-ghost:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

.btn .spinner {
    width: 16px; height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- App Layout ---------- */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-inline-end: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; bottom: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}
[dir="rtl"] .sidebar { right: 0; }
[dir="ltr"] .sidebar { left: 0; }

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}
.sidebar-header .logo {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #fff;
    font-weight: 800;
    flex-shrink: 0;
}
.sidebar-header .brand { flex: 1; }
.sidebar-header .brand h2 { font-size: 18px; font-weight: 700; line-height: 1.2; }
.sidebar-header .brand span { font-size: 11px; color: var(--text-muted); }

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}
.nav-section-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 16px 20px 8px;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    margin: 2px 8px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.nav-item:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}
.nav-item.active {
    background: var(--accent-light);
    color: var(--accent);
}
.nav-item .icon { font-size: 20px; width: 24px; text-align: center; }
.nav-item .badge {
    margin-inline-start: auto;
    background: var(--danger);
    color: #fff;
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 10px;
    font-weight: 700;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}
.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}
.user-info:hover { background: var(--bg-card-hover); }
.user-avatar {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}
.user-meta { flex: 1; min-width: 0; }
.user-meta .name { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-meta .role { font-size: 11px; color: var(--text-muted); }

/* Main Content */
.main-content {
    flex: 1;
    margin-inline-start: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
}
.header-title {
    font-size: 20px;
    font-weight: 700;
    flex: 1;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}
.header-btn {
    width: 40px; height: 40px;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: var(--transition);
}
.header-btn:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.header-btn .dot {
    position: absolute;
    top: 6px; right: 6px;
    width: 8px; height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
}
.hamburger { display: none; }

/* Page Content */
.page-content {
    flex: 1;
    padding: 24px;
}

/* ---------- Cards ---------- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}
.card:hover { border-color: var(--border-light); }
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.card-header h3 { font-size: 16px; font-weight: 600; }
.card-body { padding: 20px; }

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    transition: var(--transition);
}
.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-light);
}
.kpi-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}
.kpi-icon.blue { background: var(--accent-light); color: var(--accent); }
.kpi-icon.green { background: var(--success-light); color: var(--success); }
.kpi-icon.orange { background: var(--warning-light); color: var(--warning); }
.kpi-icon.red { background: var(--danger-light); color: var(--danger); }
.kpi-icon.purple { background: var(--purple-light); color: var(--purple); }
.kpi-info { flex: 1; }
.kpi-value {
    font-size: 24px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 2px;
}
.kpi-label {
    font-size: 13px;
    color: var(--text-muted);
}

/* ---------- Data Table ---------- */
.table-container {
    overflow-x: auto;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th {
    text-align: start;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-input);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
}
.data-table th:hover { color: var(--text-primary); }
.data-table td {
    padding: 12px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.data-table tr:hover td { background: var(--bg-card-hover); }
.data-table tr:last-child td { border-bottom: none; }

.table-toolbar {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border);
}
.table-search {
    flex: 1;
    min-width: 200px;
    max-width: 360px;
    position: relative;
}
.table-search input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    transition: var(--transition);
}
[dir="rtl"] .table-search input { padding: 8px 36px 8px 12px; }
.table-search input:focus { border-color: var(--accent); }
.table-search .icon {
    position: absolute;
    top: 50%; transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 16px;
}
[dir="rtl"] .table-search .icon { right: 10px; }
[dir="ltr"] .table-search .icon { left: 10px; }

.table-pagination {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}
.pagination-btns {
    display: flex;
    gap: 4px;
}
.pagination-btns button {
    width: 32px; height: 32px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
}
.pagination-btns button:hover { background: var(--bg-card-hover); }
.pagination-btns button.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ---------- Status Badges ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.badge-active, .badge-approved { background: var(--success-light); color: var(--success); }
.badge-pending { background: var(--warning-light); color: var(--warning); }
.badge-settled { background: var(--accent-light); color: var(--accent); }
.badge-partial { background: var(--info-light); color: var(--info); }
.badge-legal { background: var(--purple-light); color: var(--purple); }
.badge-rejected, .badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-written_off { background: rgba(100,116,139,0.2); color: var(--text-muted); }

.priority-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.priority-dot.low { background: var(--success); }
.priority-dot.medium { background: var(--warning); }
.priority-dot.high { background: #f97316; }
.priority-dot.critical { background: var(--danger); animation: pulse 1.5s infinite; }
@keyframes pulse {
    0%,100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ---------- Modal ---------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-modal-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}
.modal-overlay.show { opacity: 1; visibility: visible; }
.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95) translateY(20px);
    transition: transform 0.3s ease;
}
.modal-overlay.show .modal { transform: scale(1) translateY(0); }
.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal-header h3 { font-size: 18px; font-weight: 700; }
.modal-close {
    width: 32px; height: 32px;
    border: none;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.modal-close:hover { background: var(--danger-light); color: var(--danger); }
.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ---------- Toast Notifications ---------- */
.toast-container {
    position: fixed;
    top: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
[dir="rtl"] .toast-container { left: 24px; }
[dir="ltr"] .toast-container { right: 24px; }
.toast {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    min-width: 300px;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease, fadeOut 0.3s ease 3s forwards;
    display: flex;
    align-items: center;
    gap: 10px;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); color: #000; }
.toast.info { background: var(--accent); }

[dir="rtl"] { @keyframes slideIn { from { transform: translateX(-100%); opacity: 0; } } }
[dir="ltr"] { @keyframes slideIn { from { transform: translateX(100%); opacity: 0; } } }
@keyframes slideIn { from { transform: translateX(-100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { to { opacity: 0; transform: translateY(-20px); } }

/* ---------- Chart Containers ---------- */
.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}
.chart-card h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

/* ---------- Tabs ---------- */
.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
}
.tab {
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ---------- Empty State ---------- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state .icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; color: var(--text-secondary); }
.empty-state p { font-size: 14px; margin-bottom: 20px; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(100%);
    }
    [dir="ltr"] .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-inline-start: 0; }
    .hamburger { display: flex; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .chart-grid { grid-template-columns: 1fr; }
    .page-content { padding: 16px; }
    .login-card { margin: 16px; padding: 32px 24px; }
    .table-toolbar { flex-direction: column; }
    .table-search { max-width: 100%; }
}

@media (max-width: 480px) {
    .kpi-grid { grid-template-columns: 1fr; }
}

/* ---------- Utility Classes ---------- */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-end { text-align: end; }
.fw-bold { font-weight: 700; }
.d-none { display: none !important; }
.w-100 { width: 100%; }

/* Grid layout for forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
.form-grid .span-2 { grid-column: span 2; }
@media (max-width: 640px) {
    .form-grid { grid-template-columns: 1fr; }
    .form-grid .span-2 { grid-column: span 1; }
}

/* ---------- Loading Skeleton ---------- */
.skeleton {
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ---------- Confirm Dialog ---------- */
.confirm-dialog .modal { max-width: 400px; text-align: center; }
.confirm-dialog .modal-body { padding: 30px 24px; }
.confirm-dialog .icon { font-size: 48px; margin-bottom: 16px; }
.confirm-dialog h3 { margin-bottom: 8px; }
.confirm-dialog p { color: var(--text-muted); font-size: 14px; }