/* ===================================
   ACL Heal - Main Stylesheet
   Modern, accessible, evidence-based design
   =================================== */

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

:root {
    /* Colors - Professional, trustworthy, calm */
    --primary-color: #2563eb;      /* Blue - trust, medical */
    --primary-dark: #1e40af;
    --primary-light: #60a5fa;
    --secondary-color: #10b981;    /* Green - healing, growth */
    --accent-color: #f59e0b;       /* Amber - warmth, attention */
    --danger-color: #ef4444;       /* Red - crisis/important */

    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;

    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;

    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-md: 0 2px 8px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 4px 12px -2px rgba(0, 0, 0, 0.08);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;

    /* Spacing - Refined for sleeker feel */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.875rem;
    --spacing-md: 1.25rem;
    --spacing-lg: 1.75rem;
    --spacing-xl: 2.5rem;
    --spacing-2xl: 3.5rem;

    /* Layout */
    --max-width: 1200px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* Typography */
html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

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

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.95rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

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

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

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.625rem 1.375rem;
    font-size: 0.95rem;
    font-weight: 500;
    text-align: center;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

/* Crisis Banner */
.crisis-banner {
    background-color: var(--danger-color);
    color: white;
    padding: var(--spacing-sm);
    text-align: center;
    font-size: 0.875rem;
}

.crisis-banner p {
    margin: 0;
    color: white;
}

.crisis-banner strong {
    font-weight: 700;
}

/* Header Navigation */
.site-header {
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

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

.nav-menu a {
    color: var(--text-primary);
    font-weight: 500;
    text-decoration: none;
    padding: 0.5rem;
}

.nav-menu a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu .highlight {
    background-color: var(--secondary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.nav-menu .highlight:hover {
    background-color: #059669;
    color: white;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 250px;
    padding: var(--spacing-sm);
    list-style: none;
    margin-top: 0.5rem;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    border-radius: 4px;
}

.dropdown-menu a:hover {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    padding: var(--spacing-2xl) 0;
}

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

.hero-content {
    text-align: left;
}

.hero h1 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.15;
    font-weight: 600;
}

.hero-subtitle {
    font-size: 1.125rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    line-height: 1.6;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

@media (max-width: 968px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        text-align: center;
        order: 1;
    }

    .hero-image {
        order: 2;
        margin-top: var(--spacing-lg);
    }

    .hero-cta {
        justify-content: center;
    }
}

.hero .btn-primary {
    background-color: white;
    color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.hero .btn-primary:hover {
    background-color: var(--bg-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.hero .btn-secondary {
    border-color: rgba(255, 255, 255, 0.8);
    color: white;
}

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

/* Mission Section */
.mission {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-primary);
}

.mission h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.mission-content {
    max-width: 900px;
    margin: 0 auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.stat {
    text-align: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.stat-number {
    font-size: 2.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Nolan's Journey Section */
.nolan-journey {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-secondary);
}

.nolan-journey h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.journey-timeline {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
}

.timeline-stage {
    background-color: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-left: 3px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.timeline-stage:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(2px);
}

.timeline-stage.coming-soon {
    border-left-color: var(--text-light);
    opacity: 0.7;
}

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

.stage-header h3 {
    margin: 0;
    color: var(--primary-color);
}

.stage-date {
    font-size: 0.875rem;
    color: var(--text-light);
    background-color: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.journey-subscribe {
    background-color: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.journey-subscribe h3 {
    margin-bottom: var(--spacing-sm);
}

.subscribe-form {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.subscribe-form input[type="email"] {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
}

.subscribe-form input[type="email"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.privacy-note {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: var(--spacing-sm);
}

/* Differentiators Section */
.differentiators {
    padding: var(--spacing-2xl) 0;
}

.differentiators h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

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

.diff-card {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md) var(--spacing-lg);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.diff-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.diff-icon {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-sm);
}

.diff-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.diff-card p {
    font-size: 0.95rem;
}

/* Get Started Section */
.get-started {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-secondary);
}

.get-started h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.stage-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.stage-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-md) var(--spacing-lg);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.stage-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.stage-card.highlight {
    background-color: var(--secondary-color);
    color: white;
}

.stage-card.highlight h3,
.stage-card.highlight p {
    color: white;
}

.stage-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stage-card.highlight h3 {
    color: white;
}

.stage-card p {
    flex: 1;
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.card-arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
    align-self: flex-end;
}

.stage-card.highlight .card-arrow {
    color: white;
}

/* ACL Overview / FAQ Section */
.acl-overview {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-primary);
}

.acl-overview h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: 2rem;
}

.acl-faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.faq-card {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.faq-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.faq-card h3 {
    color: var(--primary-color);
    font-size: 1.15rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.faq-card p {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.faq-card p:last-child {
    margin-bottom: 0;
}

.faq-card strong {
    color: var(--text-primary);
}

.faq-card ul,
.faq-card ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.faq-card li {
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.faq-card li strong {
    color: var(--text-primary);
}

.faq-card.highlight {
    background: linear-gradient(135deg, #dbeafe 0%, #eff6ff 100%);
    border-color: var(--primary-light);
}

.faq-card.stats-card {
    background-color: var(--text-primary);
    color: white;
}

.faq-card.stats-card h3 {
    color: white;
}

.faq-card.stats-card li {
    color: rgba(255, 255, 255, 0.9);
}

.faq-card.stats-card strong {
    color: var(--primary-light);
}

.faq-card a {
    color: var(--primary-color);
    font-weight: 500;
}

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

.learn-more-cta {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.learn-more-cta p {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Disclaimer Section */
.disclaimer {
    padding: var(--spacing-xl) 0;
    background-color: #fff3cd;
    border-top: 3px solid var(--accent-color);
    border-bottom: 3px solid var(--accent-color);
}

.disclaimer-content {
    max-width: 900px;
    margin: 0 auto;
}

.disclaimer h3 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.disclaimer p {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

/* Footer */
.site-footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-col h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: var(--spacing-xs);
}

.footer-col a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
}

.footer-col a:hover {
    color: white;
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xs);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: underline;
}

.evidence-note {
    font-style: italic;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }

    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border-color);
        z-index: 999;
    }

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

    .dropdown-menu {
        position: static;
        box-shadow: none;
        border: none;
        background-color: var(--bg-tertiary);
        margin-top: 0.5rem;
    }

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

    .hero-subtitle {
        font-size: 1.125rem;
    }

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

    .stat-number {
        font-size: 2.5rem;
    }

    .diff-grid,
    .stage-cards,
    .acl-faq-grid {
        grid-template-columns: 1fr;
    }

    .faq-card {
        padding: var(--spacing-md);
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
}

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

/* Focus styles for keyboard navigation */
a:focus,
button:focus,
input:focus {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .crisis-banner,
    .site-header,
    .hero,
    .journey-subscribe,
    .site-footer {
        display: none;
    }
}