/* BlockHive Frontend Styles */

:root {
    --primary-dark: #0f1419;
    --primary-navy: #1a1f3a;
    --secondary-navy: #2d3561;
    --accent-cyan: #00d4ff;
    --accent-blue: #0080ff;
    --text-light: #e0e0e0;
    --text-muted: #9ca3af;
    --border-color: #3a3f5c;
    --success: #4caf50;
    --danger: #f44336;
    --warning: #ff9800;
}

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

html, body {
    background: var(--primary-dark);
    color: var(--text-light);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
}

body {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-navy) 100%);
    min-height: 100vh;
}

/* Container & Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background: rgba(26, 31, 58, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-cyan);
}

.auth-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
    color: var(--primary-dark);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-cyan);
    border: 2px solid var(--accent-cyan);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
}

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

.btn-danger:hover {
    opacity: 0.9;
}

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

/* Cards & Content */
.card {
    background: rgba(45, 53, 97, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.card-header {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--accent-cyan);
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(26, 31, 58, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-light);
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table thead {
    background: rgba(45, 53, 97, 0.7);
    border-bottom: 2px solid var(--border-color);
}

.table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--accent-cyan);
}

.table td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
    background: rgba(0, 212, 255, 0.05);
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: rgba(76, 175, 80, 0.2);
    color: #4caf50;
}

.badge-warning {
    background: rgba(255, 152, 0, 0.2);
    color: #ff9800;
}

.badge-danger {
    background: rgba(244, 67, 54, 0.2);
    color: #f44336;
}

.badge-info {
    background: rgba(0, 212, 255, 0.2);
    color: var(--accent-cyan);
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: rgba(45, 53, 97, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--accent-cyan);
    background: rgba(45, 53, 97, 0.7);
    transform: translateY(-4px);
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

/* Alerts */
.alert {
    padding: 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(76, 175, 80, 0.1);
    border-color: #4caf50;
    color: #4caf50;
}

.alert-error {
    background: rgba(244, 67, 54, 0.1);
    border-color: #f44336;
    color: #f44336;
}

.alert-warning {
    background: rgba(255, 152, 0, 0.1);
    border-color: #ff9800;
    color: #ff9800;
}

.alert-info {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

/* Loading Spinner */
.spinner {
    border: 3px solid rgba(0, 212, 255, 0.2);
    border-top: 3px solid var(--accent-cyan);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--primary-navy);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--accent-cyan);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 24px;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 10px;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .table {
        font-size: 12px;
    }
    
    .table th,
    .table td {
        padding: 8px;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.mb-30 {
    margin-bottom: 30px;
}

.hidden {
    display: none;
}

.text-success {
    color: #4caf50;
}

.text-danger {
    color: #f44336;
}

.text-warning {
    color: #ff9800;
}

.text-info {
    color: var(--accent-cyan);
}