/* Modern, clean styling for Affiliate Link Tracker */

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 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);
}

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

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

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

/* Header */
header {
    background: var(--card-bg);
    padding: 20px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

nav {
    display: flex;
    gap: 10px;
}

.nav-link {
    padding: 10px 20px;
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: all 0.2s;
    font-weight: 500;
}

.nav-link:hover {
    background-color: var(--bg-color);
    color: var(--primary-color);
}

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

.btn-refresh {
    padding: 10px 20px;
    background-color: var(--success-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-refresh:hover {
    background-color: #059669;
    transform: translateY(-1px);
}

.btn-refresh:active {
    transform: rotate(180deg);
    transition: transform 0.3s;
}

.btn-logout {
    padding: 10px 20px;
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-logout:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
}

/* Stats Bar */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card-large {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}

.stat-value-large {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label-large {
    font-size: 16px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

/* Controls */
.controls {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    min-width: 250px;
}

.search-box input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.2s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.filter-box {
    display: flex;
    gap: 10px;
}

.filter-box select {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background: white;
    cursor: pointer;
    transition: border-color 0.2s;
}

.filter-box select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Links List */
.links-container {
    margin-bottom: 30px;
}

.links-list {
    display: grid;
    gap: 20px;
}

.link-card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 25px;
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.link-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.link-card-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}

.link-actions {
    display: flex;
    gap: 8px;
}

.btn-icon {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.btn-icon:hover {
    background-color: var(--bg-color);
}

.link-card-body {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 20px;
    align-items: center;
}

.link-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.info-row {
    display: flex;
    gap: 10px;
}

.info-label {
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 100px;
}

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

.url-truncate {
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

.stat-badge {
    background: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    display: inline-block;
    margin-bottom: 8px;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    display: block;
}

.stat-text {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-text-small {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Form */
.form-container {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group small {
    display: block;
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 12px;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
}

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

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

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

.btn-secondary:hover {
    background-color: #475569;
}

.btn-copy {
    padding: 12px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.2s;
}

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

/* Success Message */
.success-message {
    text-align: center;
    padding: 30px;
}

.success-message h3 {
    color: var(--success-color);
    margin-bottom: 20px;
    font-size: 24px;
}

.link-display {
    margin: 30px 0;
}

.link-display label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.link-box {
    display: flex;
    gap: 10px;
}

.link-box input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

.link-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.hidden {
    display: none;
}

/* Redirect Page */
.redirect-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--bg-color);
}

.redirect-message {
    text-align: center;
    background: var(--card-bg);
    padding: 60px 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    max-width: 500px;
}

.redirect-message h2 {
    margin: 20px 0 10px;
    color: var(--text-primary);
}

.redirect-message p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.redirect-url {
    margin-top: 20px;
    padding: 15px;
    background: var(--bg-color);
    border-radius: 8px;
    word-break: break-all;
    font-size: 12px;
    color: var(--text-secondary);
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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

/* Link Details Page */
.link-details-container {
    margin-top: 20px;
}

.link-details-header {
    display: grid;
    gap: 20px;
    margin-bottom: 30px;
}

.link-info-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.link-info-card h2 {
    margin-bottom: 25px;
    color: var(--text-primary);
    font-size: 28px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.info-item label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 14px;
}

.info-item span {
    color: var(--text-primary);
}

.url-text {
    word-break: break-all;
    color: var(--primary-color);
}

.status-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.active {
    background-color: #d1fae5;
    color: #065f46;
}

.status-badge.inactive {
    background-color: #fee2e2;
    color: #991b1b;
}

.affiliate-link-box {
    margin-top: 25px;
    padding-top: 25px;
    border-top: 2px solid var(--border-color);
}

.affiliate-link-box label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.link-input-group {
    display: flex;
    gap: 10px;
}

.link-input-group input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

/* Section */
.section {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.section h3 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 20px;
}

.country-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.country-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-color);
    border-radius: 8px;
}

.country-name {
    font-weight: 600;
    color: var(--text-primary);
}

.country-count {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Visits Table */
.visits-table-container {
    overflow-x: auto;
}

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

.visits-table thead {
    background: var(--bg-color);
}

.visits-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
}

.visits-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

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

.visits-table code {
    background: var(--bg-color);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-family: 'Courier New', monospace;
}

.referrer-cell {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

/* Utility Classes */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.error {
    background: #fee2e2;
    color: #991b1b;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.empty-state a:hover {
    text-decoration: underline;
}

/* Login Page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
    flex-direction: column;
    gap: 30px;
}

.login-box {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    width: 100%;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: 32px;
}

.login-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 14px;
}

.btn-block {
    width: 100%;
}

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

.login-footer small {
    display: block;
    color: var(--text-secondary);
    font-size: 12px;
    margin-top: 8px;
}

.login-footer code {
    background: var(--bg-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    color: var(--primary-color);
    font-weight: 600;
}

.error-message {
    background: #fee2e2;
    color: #991b1b;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 14px;
    text-align: center;
}

.settings-panel {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 100%;
}

.settings-panel h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 24px;
}

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

.btn-link {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    text-decoration: underline;
    font-size: 14px;
    padding: 10px;
}

.btn-link:hover {
    color: var(--primary-hover);
}

/* Responsive */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
    }

    .link-card-body {
        grid-template-columns: 1fr;
    }

    .link-stats {
        text-align: left;
    }

    .form-container {
        padding: 20px;
    }

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

    .visits-table {
        font-size: 12px;
    }

    .visits-table th,
    .visits-table td {
        padding: 8px;
    }
}