/* Light Theme Variables & Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #14b8a6;
    --color-primary-focus: #0d9488;
    --color-primary-content: #ffffff;
    --color-secondary: #0f172a;
    --color-secondary-content: #ffffff;
    --color-accent: #0d9488;
    --color-accent-content: #ffffff;
    --color-neutral: #111827;
    --color-neutral-content: #ffffff;
    --color-base-100: #ffffff;
    --color-base-200: #f3f4f6;
    --color-base-300: #d1d5db;
    --color-base-content: #111827;
    --color-info: #0ea5e9;
    --color-info-content: #ffffff;
    --color-success: #22c55e;
    --color-success-content: #ffffff;
    --color-warning: #f59e0b;
    --color-warning-content: #1f1a09;
    --color-error: #ef4444;
    --color-error-content: #ffffff;
    --radius-selector: 0.25rem;
    --radius-field: 0.25rem;
    --radius-box: 0.25rem;
    --size-selector: 0.25rem;
    --size-field: 0.25rem;
    --border: 1px;
    --depth: 1;
    --noise: 0;
}

body {
    font-family: 'Rubik', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--color-base-100);
    color: var(--color-base-content);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
nav {
    padding: 24px 0;
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-base-300);
}

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

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--color-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-focus));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: var(--color-primary-content);
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--color-base-content);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    opacity: 0.7;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--color-primary);
}

/* Buttons */
.btn {
    padding: 12px 28px;
    border-radius: var(--radius-field);
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-family: 'Rubik', sans-serif;
    font-size: 16px;
    text-align: center;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-primary-content);
    box-shadow: 0 4px 14px rgba(20, 184, 166, 0.25);
}

.btn-primary:hover {
    background: var(--color-primary-focus);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(20, 184, 166, 0.35);
}

.btn-secondary {
    background: var(--color-base-100);
    color: var(--color-base-content);
    border: 1px solid var(--color-base-300);
}

.btn-secondary:hover {
    background: var(--color-base-200);
    border-color: var(--color-primary);
}

/* Hero Section Base */
.hero {
    padding-top: 140px;
    padding-bottom: 80px;
    text-align: center;
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    /* Sub-pages might overflow differently, but standard is good */
}

/* For pages with simple headers */
.page-header {
    padding-top: 140px;
    padding-bottom: 60px;
    text-align: center;
    background: var(--color-base-200);
}

.hero-shell {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 10;
}

.hero h1,
.page-header h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--color-secondary);
    line-height: 1.15;
    margin-bottom: 24px;
}

.hero p,
.page-header p {
    font-size: 20px;
    color: var(--color-neutral);
    opacity: 0.8;
    max-width: 720px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.section-label {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
}

/* Footer */
footer {
    padding: 60px 0 40px;
    border-top: 1px solid var(--color-base-300);
    background: var(--color-base-100);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand h4 {
    font-size: 20px;
    color: var(--color-secondary);
    margin-bottom: 12px;
    font-weight: 700;
}

.footer-brand p {
    color: var(--color-neutral);
    opacity: 0.7;
    font-size: 14px;
}

.footer-links h5 {
    color: var(--color-secondary);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--color-neutral);
    opacity: 0.7;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
    display: block;
}

.footer-links a:hover {
    color: var(--color-primary);
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--color-base-300);
    color: var(--color-neutral);
    opacity: 0.6;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 36px;
    }
}

/* FAQ Accordion */
details.faq-item {
    border-bottom: 1px solid var(--color-base-300);
    padding: 24px 0;
}

details.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 18px;
    color: var(--color-secondary);
    transition: color 0.2s;
}

details.faq-item summary::-webkit-details-marker {
    display: none;
}

details.faq-item summary:hover {
    color: var(--color-primary);
}

details.faq-item summary::after {
    content: '+';
    font-size: 24px;
    font-weight: 400;
    color: var(--color-primary);
    transition: transform 0.2s;
    line-height: 1;
}

details.faq-item[open] summary::after {
    transform: rotate(45deg);
}

details.faq-item[open] summary {
    margin-bottom: 16px;
}

details.faq-item p {
    color: var(--color-neutral);
    opacity: 0.8;
    line-height: 1.6;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }

    to {
        opacity: 0.8;
        transform: translateY(0);
    }
}