/* TheraBrake Academy - ADHD-Friendly Stylesheet */
/* Design Principles: White space, clear hierarchy, calming colors, scannable content */

:root {
    /* Primary Color Palette - Calming Blues, Purples, Greens */
    --primary-blue: #4A90E2;
    --primary-purple: #7B68EE;
    --primary-green: #48BB78;
    --accent-teal: #38B2AC;

    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #F7FAFC;
    --light-gray: #E2E8F0;
    --medium-gray: #718096;
    --dark-gray: #2D3748;
    --text-primary: #1A202C;

    /* Semantic Colors */
    --success: #48BB78;
    --warning: #ECC94B;
    --info: #4299E1;

    /* Spacing - Generous for ADHD-friendly design */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-base: 18px;
    --line-height-relaxed: 1.7;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Shadows - Subtle depth */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Transitions */
    --transition-base: all 0.3s ease;
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: var(--line-height-relaxed);
    color: var(--text-primary);
    background-color: var(--off-white);
    overflow-x: hidden;
}

/* Typography - Clear Hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--space-md);
    color: var(--dark-gray);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: var(--space-lg);
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

/* Paragraphs - Short, scannable */
p {
    margin-bottom: var(--space-md);
    max-width: 65ch; /* Optimal reading length */
}

/* Strong emphasis for key phrases */
strong, b {
    color: var(--primary-blue);
    font-weight: 600;
}

/* Links */
a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--primary-purple);
    text-decoration: underline;
}

a:focus {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Lists - Clear bullets and spacing */
ul, ol {
    margin-left: var(--space-lg);
    margin-bottom: var(--space-md);
}

li {
    margin-bottom: var(--space-sm);
    padding-left: var(--space-xs);
}

/* Header Navigation */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    padding: var(--space-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo:hover {
    text-decoration: none;
    color: var(--primary-purple);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    margin: 0;
}

.nav-menu li {
    margin: 0;
    padding: 0;
}

.nav-menu a {
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.nav-menu a:hover {
    background: var(--off-white);
    text-decoration: none;
}

.nav-menu a.active {
    background: var(--primary-blue);
    color: var(--white);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: 2px solid var(--primary-blue);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--primary-blue);
}

/* Container - Generous spacing */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: var(--space-2xl) var(--space-md);
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.hero h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.hero p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto var(--space-lg);
    opacity: 0.95;
}

/* Buttons - Clear, clickable CTAs */
.btn {
    display: inline-block;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--transition-base);
    text-decoration: none;
}

.btn:focus {
    outline: 3px solid rgba(74, 144, 226, 0.5);
    outline-offset: 2px;
}

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

.btn-primary:hover {
    background: #3A7BC8;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

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

.btn-secondary:hover {
    background: #38A169;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

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

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
}

.btn-large {
    padding: var(--space-lg) var(--space-xl);
    font-size: 1.2rem;
}

/* Cards - Clean, organized content blocks */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

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

.card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--space-md);
}

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

/* Feature Sections */
.feature-section {
    padding: var(--space-2xl) 0;
}

.feature-section:nth-child(even) {
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header h2 {
    color: var(--primary-blue);
    margin-bottom: var(--space-sm);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Icon Boxes */
.icon-box {
    text-align: center;
    padding: var(--space-lg);
}

.icon-box .icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
}

.icon-box h3 {
    margin-bottom: var(--space-sm);
}

/* Email Capture Form */
.email-capture {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    color: var(--white);
    padding: var(--space-2xl) var(--space-md);
    border-radius: var(--radius-lg);
    text-align: center;
    margin: var(--space-2xl) 0;
}

.email-capture h2 {
    color: var(--white);
    margin-bottom: var(--space-md);
}

.email-capture p {
    margin: 0 auto var(--space-lg);
    max-width: 600px;
}

.email-form {
    display: flex;
    gap: var(--space-sm);
    max-width: 500px;
    margin: 0 auto;
    flex-wrap: wrap;
    justify-content: center;
}

.email-form input[type="email"] {
    flex: 1;
    min-width: 250px;
    padding: var(--space-md) var(--space-lg);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
}

.email-form input[type="email"]:focus {
    outline: 3px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

.email-form button {
    background: var(--primary-green);
    color: var(--white);
}

/* Testimonials */
.testimonial {
    background: var(--white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-blue);
    margin-bottom: var(--space-lg);
}

.testimonial-text {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: var(--space-md);
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-blue);
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: var(--space-2xl) var(--space-md) var(--space-lg);
    margin-top: var(--space-2xl);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

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

.footer-section ul {
    list-style: none;
    margin: 0;
}

.footer-section li {
    margin-bottom: var(--space-sm);
    padding: 0;
}

.footer-section a {
    color: var(--light-gray);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--medium-gray);
    color: var(--light-gray);
}

/* Blog Posts */
.blog-post {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-md);
}

.blog-post h2 a {
    color: var(--dark-gray);
    text-decoration: none;
}

.blog-post h2 a:hover {
    color: var(--primary-blue);
}

.blog-meta {
    color: var(--medium-gray);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
}

.blog-excerpt {
    margin-bottom: var(--space-md);
}

.read-more {
    color: var(--primary-blue);
    font-weight: 600;
}

/* Highlight Boxes - For important information */
.highlight-box {
    background: var(--off-white);
    border-left: 4px solid var(--primary-blue);
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
    border-radius: var(--radius-sm);
}

.highlight-box.success {
    border-left-color: var(--success);
}

.highlight-box.info {
    border-left-color: var(--info);
}

.highlight-box.warning {
    border-left-color: var(--warning);
}

/* Skip to Content - Accessibility */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--space-sm) var(--space-md);
    text-decoration: none;
    z-index: 100;
}

.skip-to-content:focus {
    top: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-base: 16px;
    }

    .menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: var(--space-sm);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-container {
        flex-direction: column;
        align-items: flex-start;
    }

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

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

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

    .email-form {
        flex-direction: column;
    }

    .email-form input[type="email"],
    .email-form button {
        width: 100%;
    }

    .container, .container-narrow {
        padding: var(--space-lg) var(--space-md);
    }
}

/* Print Styles */
@media print {
    .header, .footer, .email-capture, .btn {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-blue: #0056b3;
        --text-primary: #000000;
    }
}

/* Reduced Motion Support - Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}