/* ========================================
   SoloStudies Website - Clean Modern Design
   ======================================== */

/* CSS Variables - Exact App Colors */
:root {
    /* Primary - Teal/Cyan (from app buttons) */
    --primary-color: #00BFA6;
    --primary-dark: #009688;
    --primary-light: #26C6B5;
    
    /* Accent - Peach/Orange */
    --accent-peach: #FFECD7;
    --accent-orange: #FFC894;
    
    /* Backgrounds */
    --bg-white: #FFFFFF;
    --bg-light: #F5FAFC;
    --bg-gray: #E0E0E0;
    --bg-blue-light: #F5FAFC;
    
    /* Text */
    --text-dark: #333333;
    --text-medium: #666666;
    --text-light: #999999;
    
    /* Status Colors */
    --success: #48bb78;
    --warning: #FFC894;
    --error: #f56565;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition: 0.3s ease;
    
    /* Container */
    --container-width: 1200px;
}

/* ========================================
   Reset & Base
   ======================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-white);
    overflow-x: hidden;
}

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

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-medium);
    line-height: 1.7;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

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

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

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

.btn-lg {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* ========================================
   Header & Navigation
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo-img {
    height: 45px;
    width: auto;
}

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

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-medium);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    padding: 140px 0 var(--spacing-xxl);
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-blue-light) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--accent-peach), var(--accent-orange));
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
}

.hero-badge i {
    color: var(--primary-color);
}

.hero-subtitle {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-medium);
    margin-bottom: var(--spacing-xl);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.hero-buttons .btn i {
    margin-right: 0.5rem;
}

.hero-trust {
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--bg-gray);
}

.trust-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    color: var(--text-medium);
    font-size: 0.95rem;
    margin: 0;
}

.trust-text i {
    color: var(--primary-color);
}

.divider {
    color: var(--bg-gray);
    font-weight: bold;
}

.hero-image {
    position: relative;
}

.app-screenshot {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
}

.app-screenshot:hover {
    transform: scale(1.02);
}

/* ========================================
   Beta Testing Section
   ======================================== */

.beta-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

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

.beta-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--accent-peach), var(--accent-orange));
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
}

.beta-badge i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.beta-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
}

.beta-card {
    background: var(--bg-white);
    padding: var(--spacing-xxl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.beta-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.beta-icon i {
    font-size: 2rem;
    color: white;
}

.beta-card h3 {
    font-size: 1.75rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.beta-card p {
    font-size: 1.1rem;
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.beta-benefits {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.beta-benefits li {
    padding: var(--spacing-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-medium);
    font-size: 1.05rem;
}

.beta-benefits i {
    color: var(--success);
    font-size: 1.1rem;
}

.beta-callout {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    padding: var(--spacing-xxl);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.callout-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.callout-icon i {
    font-size: 2.5rem;
    color: white;
}

.callout-text h3 {
    color: white;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.callout-text p {
    color: white;
    font-size: 1.125rem;
    line-height: 1.7;
    margin: 0;
    opacity: 0.95;
}

.privacy-commitment {
    margin-top: var(--spacing-xxl);
    padding: var(--spacing-xxl);
    background: linear-gradient(135deg, var(--bg-white), var(--bg-light));
    border-radius: var(--radius-xl);
    border: 3px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.privacy-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.privacy-icon i {
    font-size: 2.25rem;
    color: white;
}

.privacy-content h3 {
    font-size: 1.75rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.privacy-content p {
    font-size: 1.125rem;
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.privacy-content strong {
    color: var(--primary-color);
    font-weight: 700;
}

.privacy-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.privacy-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: white;
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-dark);
}

.privacy-badge i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* ========================================
   Section Headers
   ======================================== */

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

.section-title {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1.25rem;
    color: var(--text-medium);
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   Features Section
   ======================================== */

.features {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

.features-showcase {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl);
}

.feature-showcase-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
    padding: var(--spacing-xl);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-showcase-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.feature-showcase-item.reverse {
    direction: rtl;
}

.feature-showcase-item.reverse > * {
    direction: ltr;
}

.feature-showcase-image {
    position: relative;
}

.showcase-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.feature-showcase-content {
    padding: var(--spacing-md);
}

.feature-icon-badge {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon-badge i {
    font-size: 1.75rem;
    color: white;
}

.feature-showcase-content h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.feature-showcase-content p {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-medium);
}

.feature-list i {
    color: var(--success);
    font-size: 1.125rem;
}

/* ========================================
   How It Works Section
   ======================================== */

.how-it-works {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-white);
}

.setup-showcase {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.setup-image {
    position: relative;
}

.setup-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.setup-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.setup-step {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.setup-step:hover {
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    transform: translateX(10px);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.step-content p {
    color: var(--text-medium);
    margin: 0;
}

.personalization-note {
    margin-top: var(--spacing-xxl);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-peach), var(--bg-white));
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent-orange);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.personalization-note i {
    font-size: 1.5rem;
    color: var(--accent-orange);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.personalization-note p {
    color: var(--text-dark);
    line-height: 1.7;
    margin: 0;
}

.personalization-note strong {
    color: var(--primary-color);
}

/* ========================================
   Adaptive Learning Section
   ======================================== */

.adaptive-learning {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.adaptive-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxl);
}

.adaptive-main {
    text-align: center;
}

.adaptive-feature-large {
    background: var(--bg-white);
    padding: var(--spacing-xxl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-lg);
}

.feature-icon-large {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.feature-icon-large i {
    font-size: 2.5rem;
    color: white;
}

.adaptive-feature-large h3 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.lead-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-medium);
    max-width: 900px;
    margin: 0 auto;
}

.orton-gillingham-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-peach), var(--accent-orange));
    border-radius: var(--radius-lg);
    font-weight: 600;
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}

.orton-gillingham-badge i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.adaptive-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.adaptive-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

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

.adaptive-icon {
    width: 55px;
    height: 55px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.adaptive-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.adaptive-card h4 {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.adaptive-card p {
    color: var(--text-medium);
    line-height: 1.7;
    margin: 0;
}

.adaptive-callout {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    padding: var(--spacing-xxl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.callout-content h3 {
    color: white;
    font-size: 1.875rem;
    margin-bottom: var(--spacing-md);
}

.callout-content p {
    color: white;
    font-size: 1.125rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.95;
}

/* ========================================
   What's Next Section
   ======================================== */

.whats-next {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 50%, var(--bg-light) 100%);
    position: relative;
    overflow: hidden;
}

.whats-next::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-orange), var(--primary-color));
}

.next-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.next-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 1rem;
    color: white;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.next-badge i {
    font-size: 1.25rem;
}

.next-title {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.next-subtitle {
    font-size: 1.5rem;
    color: var(--text-medium);
    font-weight: 500;
    margin-bottom: var(--spacing-xxl);
    line-height: 1.6;
}

.next-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.next-feature {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

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

.next-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent-peach), var(--accent-orange));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.next-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.next-feature h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.next-feature p {
    color: var(--text-medium);
    line-height: 1.7;
    margin: 0;
}

.next-callout {
    background: linear-gradient(135deg, var(--bg-light-blue), var(--accent-peach));
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 2px solid var(--primary-color);
}

.next-callout p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

.next-callout i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* ========================================
   Investors Section
   ======================================== */

.investors {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-white);
}

.investor-hero {
    margin-bottom: var(--spacing-xxl);
}

.investor-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.investor-stat {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    border: 2px solid var(--primary-color);
}

.investor-stat .stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.investor-stat .stat-label {
    font-size: 1rem;
    color: var(--text-medium);
    font-weight: 600;
}

.investor-cta {
    text-align: center;
    padding: var(--spacing-xxl);
    background: var(--bg-light);
    border-radius: var(--radius-xl);
    margin-top: var(--spacing-xxl);
}

.investor-cta h3 {
    color: var(--text-dark);
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.investor-cta p {
    color: var(--text-medium);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

/* ========================================
   Value Grid (used in investors section)
   ======================================== */
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.value-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.value-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.value-icon i {
    font-size: 1.75rem;
    color: white;
}

.value-card h3 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.value-card p {
    color: var(--text-medium);
    line-height: 1.7;
}

.value-highlight {
    color: var(--primary-color);
    font-weight: 600;
}

.benefit-list {
    list-style: none;
}

.benefit-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
    color: var(--text-medium);
}

.benefit-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* ========================================
   Team Section
   ======================================== */

.team {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-white);
}

.classroom-origin {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-xxl);
    background: linear-gradient(135deg, var(--accent-peach), var(--bg-light-blue));
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-xxl);
    border-left: 6px solid var(--primary-color);
    box-shadow: var(--shadow-md);
}

.origin-icon {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.origin-icon i {
    font-size: 2.5rem;
    color: white;
}

.origin-content h3 {
    font-size: 1.75rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.origin-content p {
    font-size: 1.125rem;
    color: var(--text-medium);
    line-height: 1.7;
    margin: 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
}

.team-card {
    background: var(--bg-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.team-image {
    width: 100%;
    height: 350px;
    overflow: hidden;
    background: var(--bg-gray);
}

.team-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-info {
    padding: var(--spacing-xl);
}

.team-name {
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.team-title {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.team-bio {
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.team-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    background: var(--accent-peach);
    color: var(--text-dark);
    padding: 0.4rem 0.875rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.partner-section {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-light);
    border-radius: var(--radius-xl);
}

.partner-section h3 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.partner-logo {
    margin: var(--spacing-lg) 0;
}

.ballast-logo {
    height: 60px;
    width: auto;
}

.partner-text {
    color: var(--text-medium);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Contact Section
   ======================================== */

.contact {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xxl);
}

.contact-info h3 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.contact-info p {
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 0.2rem;
}

.contact-item strong {
    display: block;
    color: var(--text-dark);
    margin-bottom: 0.2rem;
}

.contact-item p {
    margin: 0;
    color: var(--text-medium);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

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

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

.form-group label {
    display: block;
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--bg-gray);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-dark);
    transition: var(--transition);
}

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

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

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--text-dark);
    color: var(--text-light);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-tagline {
    color: var(--text-light);
    line-height: 1.7;
}

.footer-links,
.footer-contact {
    list-style: none;
}

.footer-links li,
.footer-contact li {
    margin-bottom: var(--spacing-xs);
}

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

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-light);
}

.footer-contact i {
    color: var(--primary-color);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social .social-link {
    background: rgba(22, 160, 133, 0.2);
}

.footer-social .social-link:hover {
    background: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--text-light);
    margin: 0;
}

/* ========================================
   Scroll to Top
   ======================================== */

.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

/* ========================================
   Responsive Design
   ======================================== */

@media screen and (max-width: 1024px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .feature-showcase-item,
    .setup-showcase {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .feature-showcase-item.reverse {
        direction: ltr;
    }
    
    .adaptive-grid {
        grid-template-columns: 1fr;
    }
    
    .beta-grid,
    .investor-stats {
        grid-template-columns: 1fr;
    }
    
    .beta-callout {
        flex-direction: column;
        text-align: center;
    }
    
    .privacy-commitment {
        flex-direction: column;
        text-align: center;
    }
    
    .privacy-highlights {
        justify-content: center;
    }
    
    .next-features {
        grid-template-columns: 1fr;
    }
    
    .value-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: calc(100vh - 80px);
        background: var(--bg-white);
        flex-direction: column;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-xl);
        transition: var(--transition);
        overflow-y: auto;
    }
    
    .nav-menu.show {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-md);
        width: 100%;
    }
    
    .nav-cta {
        width: 100%;
        margin-left: 0;
        margin-top: var(--spacing-md);
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .stats-grid,
    .value-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .classroom-origin {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero-title {
        font-size: 1.875rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ========================================
   Accessibility
   ======================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}