/**
 * Campaign Manager SaaS Theme
 * Light mode by default, dark mode support
 */

/* CSS Variables */
:root {
    /* Colors */
    --bg-primary: #f5f7fa;
    --bg-secondary: #ffffff;
    --bg-dark: #1a1a2e;
    --text-primary: #1a1a2e;
    --text-secondary: #333333;
    --text-muted: #666666;
    --text-white: #ffffff;

    /* Accent */
    --accent-gold: #D4A843;
    --accent-gold-light: #FEE788;
    --accent-blue: #3498db;
    --accent-green: #27ae60;
    --accent-red: #e74c3c;

    /* Borders & Shadows */
    --border-light: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    background: var(--bg-dark);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-white);
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.nav-link:hover {
    opacity: 1;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: #c49a3a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background: var(--accent-gold);
    color: var(--text-white);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    padding: var(--spacing-xl) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.hero-content {
    flex: 1;
    max-width: 550px;
}

.hero h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.hero .highlight {
    color: var(--accent-gold);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
}

.hero-note {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.dashboard-preview {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    width: 100%;
    max-width: 450px;
}

.preview-header {
    background: var(--bg-dark);
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.5rem;
}

.preview-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.preview-dot.red { background: #ff5f57; }
.preview-dot.yellow { background: #febc2e; }
.preview-dot.green { background: #28c840; }

.preview-content {
    padding: var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.preview-stat {
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Features Section */
.features {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-top: -2rem;
    margin-bottom: var(--spacing-lg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Pricing Section */
.pricing {
    padding: var(--spacing-xl) 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
}

.pricing-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card.featured {
    border: 2px solid var(--accent-gold);
    transform: scale(1.05);
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-gold);
    color: var(--text-white);
    padding: 0.25rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.plan-header {
    text-align: center;
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--spacing-sm);
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.price-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.price-currency {
    font-size: 1.25rem;
    color: var(--text-muted);
}

.price-period {
    font-size: 1rem;
    color: var(--text-muted);
}

.plan-features {
    list-style: none;
    flex: 1;
    margin-bottom: var(--spacing-md);
}

.plan-features li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.plan-features .check {
    color: var(--accent-green);
    font-weight: bold;
}

.plan-features .cross {
    color: var(--text-muted);
}

.plan-features .disabled {
    color: var(--text-muted);
    opacity: 0.6;
}

.pricing-card .btn {
    width: 100%;
    text-align: center;
}

/* CTA Section */
.cta-section {
    background: var(--bg-dark);
    color: var(--text-white);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta-section p {
    opacity: 0.8;
    margin-bottom: var(--spacing-md);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--text-muted);
}

.footer-links a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.25rem 0;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--accent-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Auth Pages */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #16213e 100%);
}

.auth-container {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.auth-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-muted);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

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

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-gold);
}

.form-error {
    color: var(--accent-red);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-error.show {
    display: block;
}

.auth-form .btn {
    width: 100%;
    margin-top: var(--spacing-sm);
}

.auth-links {
    text-align: center;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.auth-links a {
    color: var(--accent-gold);
    text-decoration: none;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* Dashboard */
.dashboard-header {
    background: var(--bg-dark);
    padding: var(--spacing-sm) 0;
}

.dashboard-header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-white);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.dashboard-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

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

.dashboard-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.credits-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.credits-label {
    color: var(--text-muted);
}

.plan-badge-large {
    display: inline-block;
    background: var(--accent-gold);
    color: var(--text-white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1.25rem;
}

/* Transactions Table */
.transactions-table {
    width: 100%;
    border-collapse: collapse;
}

.transactions-table th,
.transactions-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.transactions-table th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.amount-positive {
    color: var(--accent-green);
}

.amount-negative {
    color: var(--accent-red);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.credit-packs {
    display: grid;
    gap: var(--spacing-sm);
}

.credit-pack {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color 0.2s;
}

.credit-pack:hover,
.credit-pack.selected {
    border-color: var(--accent-gold);
}

.pack-credits {
    font-weight: 600;
}

.pack-price {
    color: var(--accent-gold);
    font-weight: 600;
}

/* Alerts */
.alert {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
}

.alert-success {
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}

.alert-error {
    background: #ffebee;
    color: #c62828;
    border: 1px solid #ef9a9a;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light);
    border-top-color: var(--accent-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-lg) var(--spacing-md);
    }

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

    .hero-cta {
        align-items: center;
    }

    .nav {
        gap: var(--spacing-sm);
    }

    .pricing-card.featured {
        transform: none;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .dashboard-header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}