/**
 * SwimAnalytics Affiliate Dashboard Styles
 * Modern, clean design with responsive layout
 */

:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --success-color: #34C759;
    --warning-color: #FF9500;
    --danger-color: #FF3B30;
    --text-primary: #1C1C1E;
    --text-secondary: #8E8E93;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F2F2F7;
    --border-color: #D1D1D6;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

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

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

/* ============================================================================
   LOADING SCREEN
   ============================================================================ */

.loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

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

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================================================
   LOGIN SCREEN
   ============================================================================ */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    background: var(--bg-primary);
    padding: 48px 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.logo {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
}

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

.login-card p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

#googleSignInButton {
    margin: 32px 0;
}

.info-box {
    margin-top: 32px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 12px;
    text-align: left;
}

.info-box h3 {
    font-size: 16px;
    margin-bottom: 12px;
}

.info-box ul {
    list-style: none;
}

.info-box li {
    padding: 4px 0;
    color: var(--text-secondary);
    font-size: 14px;
}

/* ============================================================================
   HEADER
   ============================================================================ */

.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-small {
    width: 40px;
    height: 40px;
}

.header h1 {
    font-size: 20px;
    font-weight: 600;
}

.user-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

/* ============================================================================
   MAIN CONTENT
   ============================================================================ */

.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.section {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
}

/* ============================================================================
   STATS CARDS
   ============================================================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.stat-icon {
    font-size: 36px;
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-change {
    font-size: 13px;
    margin-top: 4px;
}

.stat-change.positive {
    color: var(--success-color);
}

.stat-change.negative {
    color: var(--danger-color);
}

/* ============================================================================
   PROMO CODES
   ============================================================================ */

.codes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.code-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: border-color 0.2s;
}

.code-card:hover {
    border-color: var(--primary-color);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.code-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
}

.code-status {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.code-status.active {
    background: rgba(52, 199, 89, 0.15);
    color: var(--success-color);
}

.code-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 16px;
}

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

.code-stat-value {
    font-size: 24px;
    font-weight: 700;
}

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

/* ============================================================================
   CHART
   ============================================================================ */

.chart-container {
    position: relative;
    height: 300px;
    margin-top: 20px;
}

/* ============================================================================
   EVENTS LIST
   ============================================================================ */

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

.event-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.event-icon {
    font-size: 24px;
}

.event-content {
    flex: 1;
}

.event-title {
    font-weight: 600;
    margin-bottom: 4px;
}

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

.event-amount {
    font-size: 18px;
    font-weight: 700;
    color: var(--success-color);
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: #0051D5;
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

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

/* ============================================================================
   MODAL
   ============================================================================ */

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background: var(--bg-primary);
    margin: 10% auto;
    padding: 32px;
    border-radius: 16px;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
}

.close {
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-secondary);
}

.close:hover {
    color: var(--text-primary);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
}

.form-group small {
    display: block;
    margin-top: 4px;
    font-size: 13px;
    color: var(--text-secondary);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 16px;
    }

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

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

    .main-content {
        padding: 16px;
    }
}