:root {
    /* Calming Blue - ME/CFS Awareness Palette */
    --color-bg: #F0F4F8;
    /* Cool Light Blue-Grey */
    --color-surface: #FFFFFF;
    /* Pure White */
    --color-text-main: #2C3E50;
    /* Deep Navy */
    --color-text-light: #546E7A;
    /* Cool Grey-Blue */
    --color-primary: #6B8EAD;
    /* Calming Blue (Awareness) */
    --color-primary-dark: #4A6D8C;
    --color-accent: #DCEEFB;
    /* Very Light Blue for backgrounds */
    --color-warm-overlay: rgba(240, 244, 248, 0.95);
    /* Matches bg */

    /* Typography */
    --font-heading: 'Merriweather', serif;
    --font-body: 'Outfit', sans-serif;

    /* Spacing */
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
    font-family: --font-body, system-ui, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
    font-family: var(--font-heading);
    color: var(--color-text-main);
    font-weight: 300;
    /* Elegant, light weight */
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

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

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

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Hero Section */
.hero {
    position: relative;
    height: 90vh;
    /* Full screen impact */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('./assets/hero.png');
    background-size: cover;
    background-position: center;
    opacity: 0.4;
    /* Soft background */
    z-index: -1;
}

.hero-content {
    background: var(--color-warm-overlay);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: 20px;
    backdrop-filter: blur(5px);
    max-width: 800px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.subtitle {
    font-family: var(--font-body);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
}

.intro-text {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background-color: var(--color-primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 500;
    margin-top: var(--spacing-sm);
    box-shadow: 0 4px 15px rgba(141, 163, 153, 0.4);
}

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

/* Sections */
section {
    padding: var(--spacing-xl) 0;
}

.section-warm {
    background-color: var(--color-bg);
}

.section-light {
    background-color: var(--color-surface);
}

.text-block {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.text-block p {
    margin-bottom: 1.5rem;
}

/* Link List (Resources) */
.link-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.link-list li a {
    display: block;
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 1px solid transparent;
}

.link-list li a:hover {
    background: white;
    border-color: var(--color-accent);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.link-title {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-primary-dark);
    margin-bottom: 0.5rem;
}

.link-desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

/* Contact Section */
.section-contact {
    position: relative;
    background-color: var(--color-accent);
    padding-bottom: var(--spacing-xl);
}

.bg-texture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('./assets/texture.png');
    background-size: cover;
    opacity: 0.15;
    mix-blend-mode: multiply;
    z-index: 0;
}

.contact-card {
    position: relative;
    background: var(--color-surface);
    padding: var(--spacing-lg);
    border-radius: 20px;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    z-index: 1;
}

.contact-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-main);
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-primary-dark);
    margin: var(--spacing-md) 0;
}

.contact-link:hover {
    color: var(--color-primary);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: var(--spacing-md) 0;
}

.btn-secondary {
    background-color: var(--color-bg);
    color: var(--color-text-light);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition-smooth);
}

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

.note {
    font-size: 0.85rem;
    color: #999;
    margin-top: var(--spacing-md);
}

footer {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--color-text-main);
    color: #fff;
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    animation: fadeIn 1.2s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.6rem;
    }

    .hero-content {
        padding: var(--spacing-md);
        margin: var(--spacing-sm);
    }

    .section-contact {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

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

    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }
}

/* About Section with Image */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.feature-img {
    width: 100%;
    max-width: 400px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(107, 142, 173, 0.15);
    transition: transform 0.3s ease;
}

.feature-img:hover {
    transform: scale(1.02);
}

/* FAQ Section */
.faq-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.faq-icon {
    width: 80px;
    height: auto;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
    mix-blend-mode: multiply;
    /* Makes white background transparent */
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: 16px;
    border: 1px solid rgba(107, 142, 173, 0.1);
    transition: var(--transition-smooth);
}

.faq-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(107, 142, 173, 0.1);
    background: white;
}

.faq-item h3 {
    color: var(--color-primary);
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}

.faq-item p {
    font-size: 1rem;
    color: var(--color-text-main);
    opacity: 0.9;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

    .feature-img {
        margin: 0 auto;
        display: block;
        margin-top: var(--spacing-md);
    }
}