:root {
    /* Color Palette based on StashTrace Spec */
    --bg-primary: #F4F1EA; /* Sand / Soft Gray */
    --bg-card: #FFFFFF;
    --text-primary: #0F172A; /* Slate 900 */
    --text-secondary: #475569; /* Slate 600 */
    --accent: #C86A58; /* Terracotta */
    --accent-hover: #b35e4d;
    --border-light: #E2E8F0;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --max-w-container: 1024px;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    
    /* Animation */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-out;
    
    /* Shadows */
    --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

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

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

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background-color: rgba(244, 241, 234, 0.85);
    backdrop-filter: blur(12px);
    z-index: 50;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.brand {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-logo {
    height: 32px;
    width: auto;
    border-radius: 6px;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
}

/* Main Content */
main {
    min-height: calc(100vh - 72px - 80px);
    padding: var(--spacing-xl) var(--spacing-lg);
}

/* Views */
.view {
    display: none;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.view.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Hero Section */
.hero {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    padding-top: var(--spacing-xl);
}

.hero .title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-md);
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-inline: auto;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--text-secondary);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background-color: rgba(0, 0, 0, 0.03);
    border-color: var(--text-primary);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.feature-card .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background-color: rgba(200, 106, 88, 0.1);
    color: var(--accent);
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Prose (Privacy Policy) */
.prose {
    max-width: 768px;
    margin: 0 auto;
    background-color: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: 12px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
}

.prose h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.prose .effective-date {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

.prose h2 {
    font-size: 1.5rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.prose p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.prose ul {
    margin-bottom: var(--spacing-md);
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.prose li {
    margin-bottom: var(--spacing-sm);
}

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

/* Footer */
.footer {
    border-top: 1px solid var(--border-light);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

@media (min-width: 640px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

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