/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Fintech Blue Palette */
    --primary-color: #2563eb;      /* Royal Blue */
    --primary-dark: #1e40af;       /* Dark Blue */
    --primary-light: #3b82f6;      /* Lighter Blue */
    --secondary-color: #64748b;    /* Slate Gray */
    
    /* Functional Colors */
    --success-color: #10b981;      /* Emerald */
    --error-color: #ef4444;        /* Red */
    --warning-color: #f59e0b;      /* Amber */
    --info-color: #0ea5e9;         /* Sky */
    
    /* Typography Colors */
    --text-color: #1e293b;         /* Slate 800 */
    --text-light: #64748b;         /* Slate 500 */
    --text-white: #ffffff;
    
    /* Backgrounds */
    --bg-color: #f8fafc;           /* Slate 50 */
    --card-bg: #ffffff;
    
    /* Borders & Shadows */
    --border-color: #e2e8f0;       /* Slate 200 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --radius: 12px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    padding: 20px;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding: 20px 0;
    border-bottom: 1px solid transparent;
}

.header h1 {
    color: var(--primary-dark);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-badge {
    padding: 8px 16px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.3px;
}

.user-badge.admin {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

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

.btn-logout {
    color: var(--text-light);
    font-size: 1.1rem;
    text-decoration: none;
    padding: 8px;
    transition: color 0.2s;
}

.btn-logout:hover {
    color: var(--error-color);
}

/* Card Styles */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 25px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    padding: 20px 30px;
    border-bottom: 1px solid var(--border-color);
    background: white; /* Clean white header */
    color: var(--text-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--primary-dark);
    font-weight: 700;
}

.card-header p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

.card-body {
    padding: 30px;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px; /* Slightly squarer for professional look */
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: white;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-color);
    border-color: var(--text-light);
}

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

.btn-success:hover {
    background-color: #059669;
}

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

.btn-error:hover {
    background-color: #dc2626;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Form Styles */
.form-group {
    margin-bottom: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
    font-size: 0.95rem;
}

input, select, textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background-color: #fcfcfc;
    color: var(--text-color);
    transition: all 0.2s ease;
    font-family: inherit;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); /* Primary color shadow */
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.input-with-icon input {
    padding-left: 45px;
}

/* Table Styles */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius);
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table th,
.data-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: #f8fafc;
    font-weight: 600;
    color: var(--text-light);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.data-table tr:hover td {
    background-color: #f8fafc;
}

/* Badge Styles */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
    letter-spacing: 0.3px;
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

.badge-info {
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--info-color);
}

/* Alert Styles */
.alert {
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}

.alert-success {
    background-color: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background-color: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Login Styles */
.login-card {
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 40px;
    max-width: 400px;
    margin: 60px auto;
    text-align: center;
    border: 1px solid var(--border-color);
}

.app-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-color);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: white;
    font-size: 1.75rem;
    box-shadow: var(--shadow);
}

.login-card h1 {
    color: var(--text-color);
    margin-bottom: 8px;
    font-size: 1.5rem;
}

.subtitle {
    color: var(--text-light);
    margin-bottom: 32px;
    font-size: 0.95rem;
}

.app-info {
    background: #eff6ff; /* Light blue background */
    padding: 16px;
    border-radius: 8px;
    color: var(--primary-dark);
    font-size: 0.9rem;
    margin-top: 24px;
}

.back-button {
    margin-bottom: 24px;
    text-align: left;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

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

/* Clean, white backgrounds for stats with colored icons instead of full colored cards */
.stat-card {
    background: white;
    color: var(--text-color);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* Icon colors */
.stat-card.purple .stat-icon {
    background-color: #f3e8ff;
    color: #9333ea;
}

.stat-card.green .stat-icon {
    background-color: #ecfdf5;
    color: #059669;
}

.stat-card.red .stat-icon {
    background-color: #fef2f2;
    color: #dc2626;
}

.stat-card.blue .stat-icon {
    background-color: #eff6ff;
    color: #2563eb;
}

.stat-info h3 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
}

/* Quick Actions */
.quick-actions {
    margin-bottom: 40px;
}

.quick-actions h2 {
    margin-bottom: 20px;
    color: var(--text-color);
    font-size: 1.25rem;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.action-buttons .btn {
    justify-content: center;
    padding: 16px;
}

/* Recent Transactions */
.recent-transactions {
    margin-bottom: 30px;
}

.recent-transactions h2 {
    margin-bottom: 20px;
    color: var(--text-color);
    font-size: 1.25rem;
}

/* Utilities */
.text-center { text-align: center; }
.text-success { color: var(--success-color); font-weight: 600; }
.text-error { color: var(--error-color); font-weight: 600; }

/* Filter Form */
.filter-form { margin-bottom: 20px; }
.form-buttons { display: flex; gap: 12px; margin-top: 24px; }

/* Responsive */
@media (max-width: 768px) {
    .form-row { grid-template-columns: 1fr; gap: 16px; }
    
    .header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        margin-bottom: 30px;
    }
    
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    
    .login-card { margin: 20px; padding: 30px 20px; }
    
    .stat-card { padding: 16px; gap: 12px; }
    .stat-icon { width: 48px; height: 48px; font-size: 1.25rem; }
    .stat-value { font-size: 1.25rem; }
}

@media (max-width: 480px) {
    body { padding: 12px; }
    
    .stats-grid { grid-template-columns: 1fr; }
    
    .data-table th, .data-table td { padding: 12px 10px; font-size: 0.85rem; }
    
    .btn { padding: 10px 16px; }
}