/* ==========================================================================
   Equigen - Website Styles
   ========================================================================== */

:root {
    --color-bg: #000000;
    --color-bg-alt: #0a0a0a;
    --color-text: #ffffff;
    --color-text-muted: #888888;
    --color-text-subtle: #666666;
    --color-accent: #ffffff;
    --color-border: #222222;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --max-width: 1200px;
    --border-radius: 8px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

img, svg {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

a:hover {
    opacity: 0.8;
}

h1, h2, h3 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

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

/* Layout */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

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

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-text);
}

.nav__logo img {
    width: 32px;
    height: 32px;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    list-style: none;
}

.nav__links a {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

.nav__links a:hover {
    color: var(--color-text);
    opacity: 1;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

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

.btn--primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 72px;
}

.hero__logo {
    width: 120px;
    height: auto;
    margin-bottom: var(--spacing-md);
}

.hero__wordmark {
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 0.5em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.hero__tagline {
    max-width: 600px;
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

/* Page header (privacy, terms) */
.page-header {
    padding-top: calc(72px + var(--spacing-lg));
    padding-bottom: var(--spacing-lg);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.page-header__meta {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* Content (privacy, terms) */
.content {
    padding: var(--spacing-lg) 0;
    max-width: 720px;
    margin: 0 auto;
}

.content h2 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.content h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.content p {
    color: var(--color-text-muted);
    line-height: 1.7;
}

.content a {
    color: var(--color-text);
    text-decoration: underline;
}

/* Footer */
.footer {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
}

.footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
}

.footer__links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.footer__links a {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer__links a:hover {
    color: var(--color-text);
}

.footer__copyright {
    color: var(--color-text-subtle);
    font-size: 0.8125rem;
}

/* Back link */
.back-link {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.back-link:hover {
    color: var(--color-text);
}

/* Responsive */
@media (max-width: 768px) {
    .hero__logo {
        width: 100px;
    }

    .hero__wordmark {
        font-size: 1.25rem;
        letter-spacing: 0.4em;
    }

    .hero__tagline {
        font-size: 1rem;
        padding: 0 var(--spacing-sm);
    }

    .nav__links {
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .nav__inner {
        height: 60px;
    }

    .nav__logo {
        font-size: 0.875rem;
        letter-spacing: 0.2em;
    }

    .nav__logo img {
        width: 24px;
        height: 24px;
    }
}