/* ============================================
   KODA Landing Page Styles
   Premium / Minimal / Members Club Aesthetic
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Colors */
    --color-green-dark: #0D2818;
    --color-green-mid: #1B4332;
    --color-green-light: #2D6A4F;
    --color-cream: #F5F5F0;
    --color-cream-muted: rgba(245, 245, 240, 0.7);
    --color-cream-subtle: rgba(245, 245, 240, 0.5);

    /* Typography */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-sans);
    background: linear-gradient(
        180deg,
        var(--color-green-mid) 0%,
        var(--color-green-dark) 50%,
        #091A10 100%
    );
    color: var(--color-cream);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

/* Grain Texture Overlay - Fine, high-quality noise */
.grain {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.12;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-size: 256px 256px;
}

/* Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) var(--space-lg);
}

.nav {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.nav-link {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--color-cream-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-cream);
}

.nav-link:focus-visible {
    outline: 1px solid var(--color-cream-muted);
    outline-offset: 4px;
}

/* Hero Section */
.hero {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl) var(--space-lg);
    padding-top: calc(var(--space-2xl) + 60px);
}

.hero-content {
    text-align: center;
    max-width: 480px;
}

/* Logo */
.logo-container {
    margin-bottom: 0;
}

.logo {
    width: 180px;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* Tagline */
.tagline {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    font-weight: 400;
    letter-spacing: 0.01em;
    color: var(--color-cream);
    margin-top: -3rem;
    margin-bottom: 2.5rem;
    line-height: 1.4;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    color: var(--color-green-dark);
    background-color: var(--color-cream);
    padding: 1rem 2.5rem;
    border-radius: 4px;
    text-decoration: none;
    transition: all var(--transition-base);
    margin-bottom: var(--space-lg);
}

.cta-button:hover {
    background-color: #FFFFFF;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.cta-button:focus-visible {
    outline: 2px solid var(--color-cream);
    outline-offset: 3px;
}

.cta-button:active {
    transform: translateY(0);
}

/* Legal Text */
.legal {
    font-size: 0.6875rem;
    color: var(--color-cream-subtle);
    line-height: 1.6;
    max-width: 320px;
    margin: 0 auto;
}

.legal a {
    color: var(--color-cream-muted);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition-fast);
}

.legal a:hover {
    color: var(--color-cream);
}

/* Footer */
.footer {
    padding: var(--space-lg);
    border-top: 1px solid rgba(245, 245, 240, 0.08);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.copyright {
    font-size: 0.75rem;
    color: var(--color-cream-subtle);
    letter-spacing: 0.02em;
}

.footer-links {
    display: flex;
    gap: var(--space-md);
}

.footer-links a {
    font-size: 0.75rem;
    color: var(--color-cream-subtle);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ============================================
   Page Template Styles (for secondary pages)
   ============================================ */

.page {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl) var(--space-lg);
    padding-top: calc(var(--space-2xl) + 80px);
}

.page-content {
    text-align: center;
    max-width: 480px;
}

.page-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: 0.01em;
    margin-bottom: var(--space-md);
}

.page-text {
    font-size: 0.9375rem;
    color: var(--color-cream-muted);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.page-email {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--color-cream);
    text-decoration: none;
    border-bottom: 1px solid var(--color-cream-subtle);
    padding-bottom: 2px;
    transition: border-color var(--transition-fast);
}

.page-email:hover {
    border-color: var(--color-cream);
}

/* Back Link */
.back-link {
    position: fixed;
    top: var(--space-md);
    left: var(--space-lg);
    font-size: 0.8125rem;
    color: var(--color-cream-muted);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color var(--transition-fast);
    z-index: 100;
}

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

.back-link::before {
    content: '←';
}

/* ============================================
   Responsive Design
   ============================================ */

/* Small phones */
@media (max-width: 374px) {
    .nav {
        gap: var(--space-sm);
    }

    .nav-link {
        font-size: 0.75rem;
    }

    .logo {
        width: 140px;
    }

    .tagline {
        font-size: 1.125rem;
    }

    .cta-button {
        padding: 0.875rem 2rem;
        font-size: 0.8125rem;
    }
}

/* Standard mobile */
@media (max-width: 480px) {
    .header {
        padding: var(--space-sm) var(--space-md);
    }

    .nav {
        gap: var(--space-md);
    }

    .hero {
        padding: var(--space-xl) var(--space-md);
    }

    .logo {
        width: 150px;
    }

    .tagline {
        font-size: 1.25rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Tablets */
@media (min-width: 768px) {
    .logo {
        width: 200px;
    }

    .tagline {
        font-size: 1.5rem;
    }

    .cta-button {
        padding: 1.125rem 3rem;
    }

    .page-title {
        font-size: 2.5rem;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .header {
        padding: var(--space-lg) var(--space-xl);
    }

    .nav {
        gap: var(--space-xl);
    }

    .logo {
        width: 220px;
    }

    .tagline {
        font-size: 1.625rem;
    }
}

/* Large screens */
@media (min-width: 1440px) {
    .logo {
        width: 240px;
    }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .nav-link,
    .legal,
    .copyright,
    .footer-links a {
        color: var(--color-cream);
    }

    .cta-button {
        border: 2px solid var(--color-cream);
    }
}