/* DigiPay - Modern Payment System Styles */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

/* Header & Navigation */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    text-decoration: none;
    color: white;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.8;
}

.nav-auth {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    font-weight: 500;
    text-align: center;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #667eea;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #1e7e34;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Main Content */
.main-content {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero {
    text-align: center;
    padding: 4rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 300;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

.card-header {
    border-bottom: 1px solid #eee;
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 0.5rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
}

.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #667eea;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: #333;
}

/* Dashboard */
.dashboard {
    padding: 2rem 0;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.balance-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    margin-bottom: 2rem;
}

.balance-amount {
    font-size: 3rem;
    font-weight: bold;
    margin: 1rem 0;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.stats-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.stats-number {
    font-size: 2rem;
    font-weight: bold;
    color: #667eea;
    margin: 0.5rem 0;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e6ed;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e6ed;
    border-radius: 5px;
    background: white;
    cursor: pointer;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
}

.table tbody tr:hover {
    background: #f8f9fa;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.alert-success {
    background: #d4edda;
    border-color: #28a745;
    color: #155724;
}

.alert-error {
    background: #f8d7da;
    border-color: #dc3545;
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    border-color: #ffc107;
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    border-color: #17a2b8;
    color: #0c5460;
}

/* Transaction Status */
.status {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
}

.status-completed {
    background: #d4edda;
    color: #155724;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
}

.status-failed {
    background: #f8d7da;
    color: #721c24;
}

.direction-incoming {
    color: #28a745;
    font-weight: 500;
}

.direction-outgoing {
    color: #dc3545;
    font-weight: 500;
}

/* Loading */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Footer */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 1rem;
    }

    .nav-links {
        margin: 1rem 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .dashboard-header {
        flex-direction: column;
        gap: 1rem;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 1rem;
    }

    .table {
        font-size: 0.9rem;
    }

    .table th,
    .table td {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
    }

    .nav-auth {
        flex-direction: column;
        gap: 0.5rem;
    }

    .balance-amount {
        font-size: 2rem;
    }

    .stats-number {
        font-size: 1.5rem;
    }
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    max-height: 80%;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.close {
    color: #aaa;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    color: #333;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: #28a745; }
.text-danger { color: #dc3545; }
.text-warning { color: #ffc107; }
.text-info { color: #17a2b8; }
.text-muted { color: #6c757d; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }