@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700&display=swap');
@import 'variables.css';

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

body {
    font-family: var(--font-family);
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Typography Utility Classes */
.display-large { font-size: 28px; font-weight: 700; }
.display-medium { font-size: 24px; font-weight: 700; }
.headline-large { font-size: 20px; font-weight: 700; }
.headline-medium { font-size: 18px; font-weight: 600; }
.body-large { font-size: 16px; font-weight: 400; }
.body-medium { font-size: 14px; font-weight: 400; }
.label-large { font-size: 16px; font-weight: 700; }

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xxl) 0;
}

/* Components */

/* Primary Button */
.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--text-on-primary);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: var(--shadow-md);
    border: none;
    cursor: pointer;
}

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

.btn-outline {
    display: inline-block;
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: calc(var(--spacing-md) - 2px) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
    transition: background-color 0.2s;
    cursor: pointer;
}

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

/* Instructor Card */
.instructor-card {
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

.instructor-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

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

.instructor-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    background-color: var(--primary-light);
}

.instructor-info h3 {
    color: var(--text-primary);
    margin-bottom: 2px;
}

.instructor-info p {
    color: var(--text-secondary);
}

.rating-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background-color: #FEF3C7; /* Amber-100 */
    color: #D97706; /* Amber-600 */
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
}

/* Tag Chip */
.tag-chip {
    display: inline-block;
    background-color: var(--primary-light);
    color: var(--primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
}

/* Header */
.header {
    background-color: var(--surface);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--spacing-md) 0;
}

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

.logo {
    font-family: var(--font-family);
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.nav-links {
    display: none; /* Mobile first hidden */
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
        gap: var(--spacing-lg);
    }
    
    .nav-links a {
        font-weight: 600;
        color: var(--text-secondary);
        transition: color 0.2s;
    }
    
    .nav-links a:hover {
        color: var(--primary);
    }
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-xl);
    padding-top: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
}

.hero-text {
    max-width: 600px;
}

.hero h1 {
    font-size: 32px; /* Mobile */
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.hero p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-image {
    width: 100%;
    max-width: 500px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

@media (min-width: 768px) {
    .hero {
        flex-direction: row;
        text-align: left;
        justify-content: space-between;
    }

    .hero h1 {
        font-size: 48px;
    }

    .hero-text {
        max-width: 50%;
    }

    .hero-image {
        max-width: 45%;
    }
}

/* Features/Instructors Grid */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

@media (min-width: 640px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Footer */
.footer {
    background-color: var(--surface);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xxl);
    border-top: 1px solid var(--border);
    text-align: center;
}

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

/* Waitlist Form */
.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: var(--spacing-lg) auto 0;
    width: 100%;
}

.waitlist-input {
    flex: 1;
    padding: var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 16px;
    transition: all 0.2s;
}

.waitlist-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

@media (min-width: 640px) {
    .waitlist-form {
        flex-direction: row;
    }
}

/* Feature Cards (Benefits) */
.benefits-section {
    padding: var(--spacing-xxl) 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.benefit-card {
    background-color: var(--surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* CTA Highlight Section */
.cta-highlight {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
    border-radius: var(--radius-xl);
    margin: var(--spacing-xxl) 0;
    box-shadow: var(--shadow-lg);
}

.cta-highlight h2, .cta-highlight p {
    color: white;
}

.cta-highlight .btn-primary {
    background: white;
    color: var(--primary);
    margin-top: var(--spacing-lg);
}

.cta-highlight .btn-primary:hover {
    background-color: var(--surface);
    color: var(--primary-dark);
}