/* ===== MODERN DESIGN SYSTEM - Components ===== */

:root {
    color-scheme: light;
    --primary-blue: #1E88E5;
    --secondary-blue: #E53935;
    --light-blue: #E3F2FD;
    --dark-blue: #1565C0;
    --accent-blue: #E53935;
    --success: #27AE60;
    --warning: #F39C12;
    --info: #1ABC9C;
    --danger: #E53935;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-2xl: 24px;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --sidebar-width: 250px;
    --header-height: 60px;

    /* Bootstrap light theme lock */
    --bs-body-bg: #F5F7FB;
    --bs-body-color: #2C3E50;
    --bs-tertiary-bg: #FFFFFF;
    --bs-secondary-bg: #FFFFFF;
    --bs-border-color: #E8EBF0;
    --bs-table-bg: #FFFFFF;
    --bs-table-color: #2C3E50;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: #F5F7FB;
    color-scheme: light;
    height: 100%;
    overflow: hidden;
}

body {
    background: #F5F7FB !important;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 0.9rem;
    color: #2C3E50 !important;
    line-height: 1.6;
    height: 100%;
    overflow: hidden;
}

body > .d-flex {
    height: 100vh;
    width: 100vw;
}

body > .d-flex > [class*="flex-grow"] {
    background: #ffffff;
    margin-left: var(--sidebar-width);
    width: calc(100vw - var(--sidebar-width));
    min-width: 0;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    margin-top: 0;
    padding-top: 0;
}

/* ===== SIDEBAR ===== */
.sidebar {
    background: linear-gradient(135deg, #1E88E5 0%, #1565C0 42%, #0D47A1 100%) !important;
    color: white;
    min-height: 100vh;
    padding: 0;
    transition: all var(--transition-base);
    box-shadow: 2px 0 10px rgba(30, 136, 229, 0.2);
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 1000;
    width: 250px;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar.active {
    transform: translateX(0);
}

.sidebar-header {
    padding: var(--spacing-lg) var(--spacing-md);
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.sidebar-brand-mark {
    color: #FFD700;
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.sidebar-header h2 {
    font-size: 1.2rem;
    margin: 0;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.sidebar-header p {
    margin: var(--spacing-xs) 0 0;
    font-size: 0.75rem;
    opacity: 0.8;
    font-weight: 500;
}

.sidebar-nav {
    padding: var(--spacing-md) 0;
}

.sidebar .nav-item {
    margin: 0;
    border-left: 4px solid transparent;
    transition: all var(--transition-base);
}

.sidebar .nav-item:hover {
    background-color: rgba(255, 255, 255, 0.1) !important;
    border-left-color: var(--accent-blue) !important;
}

.sidebar .nav-item a {
    color: #FFFFFF !important;
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    transition: all var(--transition-base);
    font-size: 0.9rem;
}

.sidebar .nav-item a:hover {
    color: var(--light-blue) !important;
}

.sidebar .nav-item.active {
    background-color: rgba(255, 255, 255, 0.1) !important;
    border-left-color: var(--accent-blue) !important;
}

.sidebar .nav-item.active a {
    color: var(--light-blue) !important;
    font-weight: 700;
}

.sidebar .nav-item i {
    margin-right: var(--spacing-md);
    font-size: 1.1rem;
    width: 22px;
    min-width: 22px;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ===== NAVBAR ===== */
.navbar {
    background: #FFFFFF !important;
    box-shadow: var(--shadow-md);
    border-bottom: 2px solid var(--light-blue);
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    z-index: 999;
    flex-shrink: 0;
    height: var(--header-height);
    display: flex;
    align-items: center;
}

.navbar-brand {
    color: var(--primary-blue) !important;
    font-weight: 700;
    font-size: 1.2rem;
    margin-top: 10px;
    margin-bottom: 10px;
}

.navbar-brand i {
    margin-right: var(--spacing-md);
}

.navbar-nav .nav-link {
    color: var(--dark-blue) !important;
    margin-left: var(--spacing-lg);
    font-weight: 500;
    transition: all var(--transition-base);
}

.navbar-nav .nav-link:hover {
    color: var(--secondary-blue) !important;
}

.navbar-nav .dropdown-menu {
    border: none;
    box-shadow: 0 5px 15px rgba(30, 136, 229, 0.2);
    border-radius: var(--radius-lg);
}

.navbar-nav .dropdown-item {
    color: var(--dark-blue);
    transition: all var(--transition-base);
}

.navbar-nav .dropdown-item:hover {
    background-color: var(--light-blue);
    color: var(--primary-blue);
}

/* ===== CARDS & CONTAINERS ===== */
.card,
.metric-card,
.filter-card,
.chart-container,
.form-card,
.table-responsive {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-base);
}

.card:hover,
.metric-card:hover,
.filter-card:hover,
.chart-container:hover,
.form-card:hover {
    box-shadow: var(--shadow-lg);
}

.metric-card {
    border-left: 3px solid var(--primary-blue);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card-header,
.filter-card {
    margin-bottom: var(--spacing-lg);
}

.metric-icon {
    font-size: 1.4rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.metric-label {
    color: #7A869A;
    font-size: 0.75rem;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    font-weight: 700;
}

.metric-value {
    color: var(--primary-blue);
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 0;
    line-height: 1.15;
    word-wrap: break-word;
}

.metric-helper {
    color: #6B778C;
    font-size: 0.8rem;
    line-height: 1.3;
    margin-top: var(--spacing-xs);
    flex-grow: 1;
    word-wrap: break-word;
}

/* ===== FORM ELEMENTS ===== */
.form-label {
    margin-bottom: var(--spacing-xs);
    color: #5F6C7B;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.form-control,
.form-select {
    border-radius: var(--radius-md);
    border: 1px solid #D4D9E3;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
    transition: all var(--transition-base);
    min-height: 38px;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: #999;
}

/* ===== BUTTONS ===== */
.btn {
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 600;
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1565C0 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1565C0 0%, var(--primary-blue) 100%);
    color: white;
}

.btn-secondary {
    background: var(--secondary-blue);
    color: white;
}

.btn-secondary:hover {
    background: #D32F2F;
    color: white;
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: #229954;
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #D32F2F;
    color: white;
}

.btn-light {
    background: var(--light-blue);
    color: var(--dark-blue);
}

.btn-light:hover {
    background: #D5DBDB;
    color: var(--dark-blue);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.85rem;
}

.btn-block {
    width: 100%;
    display: flex;
    justify-content: center;
}

/* ===== TABLES ===== */
.table {
    background: #FFFFFF;
    border-collapse: collapse;
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.table thead th {
    background: linear-gradient(135deg, var(--light-blue) 0%, rgba(30, 136, 229, 0.1) 100%);
    color: var(--primary-blue);
    border: none;
    font-weight: 700;
    font-size: 0.78rem;
    padding: var(--spacing-sm) var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.table tbody td {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
    vertical-align: middle;
    border-bottom: 1px solid #E8EBF0;
}

.table tbody tr:hover {
    background-color: rgba(30, 136, 229, 0.08);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ===== BADGES & TAGS ===== */
.badge,
.trend-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
}

.trend-badge {
    padding: 5px 10px;
}

.trend-badge.trend-up {
    background: #FFEBEE;
    color: #E53935;
}

.trend-badge.trend-down {
    background: #E8F5E9;
    color: #2E7D32;
}

.trend-badge.trend-neutral {
    background: #EFF1F5;
    color: #37474F;
}

.badge-primary {
    background: var(--primary-blue);
    color: white;
}

.badge-success {
    background: var(--success);
    color: white;
}

.badge-warning {
    background: var(--warning);
    color: white;
}

.badge-danger {
    background: var(--danger);
    color: white;
}

/* ===== ALERTS ===== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid transparent;
}

.alert-success {
    background: #E8F5E9;
    border-left-color: var(--success);
    color: #1B5E20;
}

.alert-danger {
    background: #FFEBEE;
    border-left-color: var(--danger);
    color: #B71C1C;
}

.alert-warning {
    background: #FFF8E1;
    border-left-color: var(--warning);
    color: #F57F17;
}

.alert-info {
    background: #E0F2F1;
    border-left-color: var(--info);
    color: #004D40;
}

/* ===== MODALS ===== */
.modal-content {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    border-bottom: 1px solid #E8EBF0;
    padding: var(--spacing-lg);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    border-top: 1px solid #E8EBF0;
    padding: var(--spacing-lg);
}

/* ===== TOGGLES & SIDEBAR CONTROLS ===== */
.toggle-sidebar {
    display: none;
    background: none;
    border: none;
    color: var(--primary-blue);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.toggle-sidebar:hover {
    color: var(--secondary-blue);
}

/* ===== EMPTY STATES ===== */
.empty-state {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #F0F7FF 0%, #E3F2FD 100%);
    border: 1px dashed rgba(30, 136, 229, 0.2);
    color: #617083;
    font-weight: 600;
    font-size: 0.88rem;
}

/* ===== DASHBOARD ===== */
.dashboard-main {
    padding: var(--spacing-md);
    margin-top: 70px;
}

main {
    flex: 1;
    overflow: auto;
    padding: 0;
}

body > .d-flex > [class*="flex-grow"] > main:not(.dashboard-main) {
    margin-top: var(--header-height);
}

.stat-card {
    background: white;
    border-radius: var(--radius-md);
    padding: 10px;
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    border-top: 3px solid var(--primary-blue);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--light-blue) 0%, transparent 100%);
    border-radius: 50%;
    opacity: 0.3;
    pointer-events: none;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 12px rgba(231, 76, 60, 0.15);
    border-color: var(--accent-blue);
}

.stat-icon {
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--light-blue) 0%, rgba(52, 152, 219, 0.12) 100%);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    margin-bottom: 6px;
    box-shadow: 0 1px 5px rgba(231, 76, 60, 0.08);
}

.stat-label {
    color: #7A869A;
    font-size: 0.7rem;
    margin-bottom: 2px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2px;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--dark-blue);
    margin-bottom: 0;
    line-height: 1.2;
}

.chart-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--primary-blue);
}

.chart-title i {
    margin-right: var(--spacing-sm);
    color: var(--primary-blue);
    font-size: 1.1rem;
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    margin-right: 6px;
    vertical-align: middle;
}

.badge-user,
.badge-amount,
.badge-category,
.badge-date,
.activity-badge {
    display: inline-block;
    font-weight: 700;
}

.badge-user {
    background: rgba(231, 76, 60, 0.1);
    color: var(--primary-blue);
    border-radius: var(--radius-sm);
    padding: 3px 8px;
    font-size: 0.75rem;
    border: 1px solid rgba(231, 76, 60, 0.2);
}

.badge-amount {
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: var(--radius-sm);
    padding: 3px 8px;
    font-size: 0.8rem;
    border: 1px solid rgba(231, 76, 60, 0.2);
}

.badge-category {
    background: #F3E5AB;
    color: #8B5800;
    border-radius: var(--radius-full);
    padding: 2px 8px;
    font-size: 0.7rem;
}

.badge-date,
.activity-badge {
    background: #E8F5E9;
    color: #2E7D32;
    border-radius: var(--radius-full);
    padding: 3px 8px;
    font-size: 0.7rem;
}

.section-divider {
    border-top: 1px solid #E0E0E0;
    margin: var(--spacing-sm) 0;
}

/* ===== UTILITIES ===== */
.text-muted {
    color: #7A869A;
}

.text-primary {
    color: var(--primary-blue);
}

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

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

.text-center {
    text-align: center;
}

.d-flex {
    display: flex;
}

.flex-grow-1 {
    flex-grow: 1;
}

.align-items-center {
    align-items: center;
}

.justify-content-between {
    justify-content: space-between;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

.mb-0 {
    margin-bottom: 0;
}

.mb-xs {
    margin-bottom: var(--spacing-xs);
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.p-md {
    padding: var(--spacing-md);
}

.p-lg {
    padding: var(--spacing-lg);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        width: 250px;
        height: 100vh;
        z-index: 1000;
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .toggle-sidebar {
        display: block;
    }

    body > .d-flex > [class*="flex-grow"] {
        margin-left: 0;
        width: 100vw;
    }

    .navbar {
        left: 0;
    }

    main {
        padding: var(--spacing-sm);
    }

    .card,
    .metric-card,
    .filter-card,
    .chart-container,
    .form-card,
    .table-responsive {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }

    .metric-value {
        font-size: 1.15rem;
    }

    .btn {
        min-height: 36px;
        font-size: 0.9rem;
    }

    .form-control,
    .form-select {
        min-height: 36px;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    body {
        font-size: 0.85rem;
    }

    .table {
        font-size: 0.8rem;
    }

    .table thead th,
    .table tbody td {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8rem;
    }

    .metric-value {
        font-size: 1.1rem;
    }

    .metric-label {
        font-size: 0.7rem;
    }

    .sidebar-header h2 {
        font-size: 1.1rem;
    }

    .navbar-brand {
        font-size: 1rem;
    }

    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* ===== ANIMATIONS ===== */
@keyframes slideIn {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.animate-slide-in {
    animation: slideIn 0.3s ease;
}

.animate-slide-down {
    animation: slideDown 0.3s ease;
}

.animate-fade-in {
    animation: fadeIn 0.3s ease;
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #BDC3C7;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #95A5A6;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}