/* 
 * Financial Report System - Main Stylesheet
 * Modern, clean design with responsive layout
 */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #1e293b;
    
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    --sidebar-width: 260px;
    --header-height: 64px;
    
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

/* Login Page */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-box {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 28px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form {
    margin-top: 30px;
}

.login-footer {
    margin-top: 20px;
    text-align: center;
}

/* Header */
.main-header {
    position: fixed;
    top: 0;
    right: 0;
    left: var(--sidebar-width);
    height: var(--header-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    z-index: 100;
    transition: var(--transition);
}

.main-header.expanded {
    left: 70px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.sidebar-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background: var(--bg-secondary);
}

.sidebar-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
}

.app-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.user-menu {
    position: relative;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 8px;
    transition: var(--transition);
}

.user-menu-toggle:hover {
    background: var(--bg-secondary);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.user-name {
    font-weight: 500;
    color: var(--text-primary);
}

.dropdown-icon {
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 200px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--bg-secondary);
}

.dropdown-item svg {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-dark);
    padding: 20px 0;
    overflow-y: auto;
    transition: var(--transition);
    z-index: 101;
}

.sidebar.collapsed {
    width: 70px;
}

.sidebar.collapsed .nav-item span {
    display: none;
}

.sidebar.collapsed .nav-section-title {
    display: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 12px;
}

.sidebar.collapsed .nav-item svg {
    margin: 0;
}

.sidebar.collapsed .nav-item {
    position: relative;
}

.sidebar.collapsed .nav-item:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-dark);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 1000;
    margin-left: 10px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.sidebar-nav {
    padding: 0 15px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: #cbd5e1;
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 4px;
    transition: var(--transition);
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-item.active {
    background: var(--primary-color);
    color: white;
}

.nav-item svg {
    width: 20px;
    height: 20px;
}

.nav-section {
    margin-top: 30px;
}

.nav-section-title {
    color: #64748b;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 16px;
    margin-bottom: 8px;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 30px;
    min-height: calc(100vh - var(--header-height));
    transition: var(--transition);
}

.main-content.expanded {
    margin-left: 70px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 16px;
}

/* Cards */
.card {
    background: var(--bg-primary);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 24px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}

.summary-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 16px;
    transition: var(--transition);
}

.summary-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.card-icon.blue { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.card-icon.green { background: linear-gradient(135deg, #10b981, #059669); }
.card-icon.orange { background: linear-gradient(135deg, #f97316, #ea580c); }
.card-icon.red { background: linear-gradient(135deg, #ef4444, #dc2626); }
.card-icon.purple { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.card-icon.teal { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.card-icon.indigo { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.card-icon.pink { background: linear-gradient(135deg, #ec4899, #db2777); }
.card-icon.cyan { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.card-icon.lime { background: linear-gradient(135deg, #84cc16, #65a30d); }

.card-content h3 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.card-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

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

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--bg-secondary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

.btn svg {
    width: 16px;
    height: 16px;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead th {
    background: var(--bg-secondary);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tbody td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.table tbody tr:hover {
    background: var(--bg-secondary);
}

/* App Table Stripe Styles */
.month-table tbody tr:nth-child(odd) td,
.customer-table tbody tr:nth-child(odd) td {
    background: #f9fafb;
}

.month-table tbody tr:nth-child(even) td,
.customer-table tbody tr:nth-child(even) td {
    background: #ffffff;
}

.month-table tbody tr:hover td,
.customer-table tbody tr:hover td {
    background: #f1f5f9;
}

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

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

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

/* Alerts */
.alert {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

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

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

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

.row {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
}

.col-md-4 {
    flex: 0 0 calc(33.333% - 16px);
}

.col-md-8 {
    flex: 0 0 calc(66.666% - 8px);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-primary);
    border-radius: 12px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.show .modal {
    transform: scale(1);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.modal-close svg {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 0;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-header {
        left: 0;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar-toggle {
        display: block;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .row {
        flex-direction: column;
    }
    
    .col-md-4,
    .col-md-8 {
        flex: 1 1 100%;
    }
}