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

:root {
    --color-bg: #FFFFFF;
    --color-text: #000000;
    --color-text-secondary: #666666;
    --color-text-tertiary: #999999;
    --color-border: #E8E8E8;
    --color-surface: #F8F8F8;
    --color-primary: #000000;
    --color-success: #1A1A1A;
    --color-error: #FF3B30;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 30px;
}

.logo h1 {
    font-size: 18px;
    font-weight: 300;
    letter-spacing: -0.3px;
    color: var(--color-text);
}

.user-info {
    font-size: 13px;
    color: var(--color-text-secondary);
    font-weight: 300;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 40px 0 50px;
}

.hero-title {
    font-size: 24px;
    font-weight: 300;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 13px;
    color: var(--color-text-secondary);
    font-weight: 300;
}

/* Plans Container */
.plans-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 100px;
}

@media (max-width: 1024px) {
    .plans-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

.plan-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px 24px;
    position: relative;
    transition: all 0.3s ease;
}

.plan-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.plan-popular {
    border-color: var(--color-primary);
    border-width: 1.5px;
    box-shadow: var(--shadow-sm);
}

.plan-test {
    border-color: #ffa500;
    border-width: 2px;
    background: #fff9e6;
}

.popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-bg);
    padding: 4px 16px;
    border-radius: 12px;
    font-size: 9px;
    font-weight: 400;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.test-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #ffa500;
    color: #000000;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    z-index: 10;
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.plan-name {
    font-size: 18px;
    font-weight: 300;
    letter-spacing: -0.3px;
    margin-bottom: 6px;
}

.savings-badge {
    background: var(--color-surface);
    color: var(--color-text);
    padding: 3px 10px;
    border-radius: 8px;
    font-size: 10px;
    font-weight: 400;
    display: inline-block;
    margin-top: 6px;
    border: 1px solid var(--color-border);
}

.plan-pricing {
    margin-bottom: 24px;
}

.plan-price {
    font-size: 32px;
    font-weight: 300;
    letter-spacing: -0.8px;
    color: var(--color-text);
}

.plan-period {
    font-size: 13px;
    color: var(--color-text-secondary);
    font-weight: 300;
    margin-left: 6px;
}

.plan-features {
    list-style: none;
    margin-bottom: 24px;
}

.plan-features li {
    padding: 10px 0;
    font-size: 12px;
    color: var(--color-text);
    font-weight: 300;
    border-bottom: 1px solid var(--color-border);
}

.plan-features li:last-child {
    border-bottom: none;
}

/* Buttons */
.btn-subscribe,
.btn-primary,
.btn-secondary {
    width: 100%;
    padding: 12px 24px;
    font-size: 12px;
    font-weight: 400;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-subscribe,
.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
}

.btn-subscribe:hover,
.btn-primary:hover {
    background: var(--color-text-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

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

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

.subscribe-form {
    margin-top: auto;
}

/* Features Section */
.features-section {
    padding: 50px 0;
    text-align: center;
}

.features-section h3 {
    font-size: 18px;
    font-weight: 300;
    letter-spacing: -0.3px;
    margin-bottom: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    padding: 24px;
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.feature-item h4 {
    font-size: 13px;
    font-weight: 300;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 11px;
    color: var(--color-text-secondary);
    line-height: 1.5;
    font-weight: 300;
}

/* Success/Cancel Pages */
.success-container,
.cancel-container {
    max-width: 600px;
    margin: 100px auto;
    text-align: center;
    padding: 60px 40px;
}

.success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--color-success);
    color: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    font-weight: 700;
    margin: 0 auto 32px;
}

.cancel-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--color-surface);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    font-weight: 700;
    margin: 0 auto 32px;
    border: 2px solid var(--color-border);
}

.success-title,
.cancel-title {
    font-size: 24px;
    font-weight: 300;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.success-message,
.cancel-message {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: 30px;
    line-height: 1.5;
    font-weight: 300;
}

.plan-summary {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 32px;
    margin-bottom: 40px;
}

.plan-summary h3 {
    font-size: 11px;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--color-text-secondary);
    margin-bottom: 10px;
}

.plan-summary .plan-name {
    font-size: 18px;
    font-weight: 300;
    margin-bottom: 6px;
}

.plan-summary .plan-price {
    font-size: 13px;
    color: var(--color-text-secondary);
    font-weight: 300;
}

/* Footer */
.footer {
    padding: 40px 0 30px;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer p {
    color: var(--color-text-secondary);
    font-size: 11px;
    margin-bottom: 16px;
    font-weight: 300;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 11px;
    font-weight: 300;
    transition: color 0.3s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 20px;
    }
    
    .hero-subtitle {
        font-size: 11px;
    }
    
    .plans-container {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 100%;
    }
    
    .plan-card {
        padding: 24px 20px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* Error Messages */
.error-message {
    background: #FFF5F5;
    border: 1px solid var(--color-error);
    color: var(--color-error);
    padding: 12px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 11px;
    font-weight: 300;
}

/* Support Page Styles */
.support-section {
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--color-border);
}

.support-section:last-child {
    border-bottom: none;
}

.section-title {
    font-size: 18px;
    font-weight: 300;
    letter-spacing: -0.3px;
    margin-bottom: 12px;
    color: var(--color-text);
}

.section-description {
    font-size: 13px;
    color: var(--color-text-secondary);
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 24px;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 300;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 13px;
    font-weight: 300;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 300;
}

.form-message-success {
    background: #F0F9F0;
    border: 1px solid #4CAF50;
    color: #2E7D32;
}

.form-message-error {
    background: #FFF5F5;
    border: 1px solid var(--color-error);
    color: var(--color-error);
}

/* Contact Info */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
}

.contact-icon {
    font-size: 32px;
    line-height: 1;
}

.contact-details h4 {
    font-size: 15px;
    font-weight: 300;
    margin-bottom: 8px;
    color: var(--color-text);
}

.contact-details p {
    font-size: 13px;
    color: var(--color-text-secondary);
    font-weight: 300;
    margin-bottom: 4px;
}

.contact-details a {
    color: var(--color-primary);
    text-decoration: none;
}

.contact-details a:hover {
    text-decoration: underline;
}

.contact-note {
    font-size: 11px;
    color: var(--color-text-tertiary);
    margin-top: 4px;
}

/* FAQ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.faq-item {
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
}

.faq-question {
    font-size: 15px;
    font-weight: 300;
    margin-bottom: 12px;
    color: var(--color-text);
}

.faq-answer {
    font-size: 13px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    font-weight: 300;
}

/* Resources Grid */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.resource-item {
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    text-align: center;
}

.resource-item h4 {
    font-size: 15px;
    font-weight: 300;
    margin-bottom: 8px;
    color: var(--color-text);
}

.resource-item p {
    font-size: 12px;
    color: var(--color-text-secondary);
    font-weight: 300;
}

/* Responsive Support */
@media (max-width: 768px) {
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        margin: 0 auto;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
    }
}