/* OpenEdit — Premium Minimalist Design System */

:root {
    /* Colors */
    --color-cream: #FAF8F5;
    --color-charcoal: #1A1A1A;
    --color-stone: #8B8680;
    --color-gold: #C9A85C;
    --color-gold-light: #E8D5A8;
    --color-white: #FFFFFF;
    --color-border: rgba(26, 26, 26, 0.08);

    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Manrope', -apple-system, sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;

    /* Transitions */
    --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 300;
    background-color: var(--color-cream);
    color: var(--color-charcoal);
    line-height: 1.7;
    letter-spacing: 0.01em;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Grain Overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) 0;
    transition: background-color var(--transition-fast);
}

.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 5%;
    right: 5%;
    height: 1px;
    background: var(--color-border);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.header.scrolled {
    background-color: rgba(250, 248, 245, 0.9);
    backdrop-filter: blur(20px);
}

.header.scrolled::after {
    opacity: 1;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.logo-mark {
    font-size: 1.5rem;
    color: var(--color-charcoal);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 400;
    color: var(--color-charcoal);
    letter-spacing: 0.05em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-link {
    font-size: 0.8rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-stone);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-charcoal);
    transition: width var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-charcoal);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: 0.75rem 1.5rem;
    background: var(--color-charcoal);
    color: var(--color-cream);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--color-gold);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    max-width: 1400px;
    margin: 0 auto;
    padding: calc(var(--space-xl) + var(--space-md)) var(--space-md) var(--space-xl);
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.hero-eyebrow {
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-gold);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 300;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-charcoal);
}

.title-line {
    display: block;
}

.title-line-emphasis {
    font-weight: 400;
    font-style: italic;
    color: var(--color-gold);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-stone);
    max-width: 400px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

/* Buttons */
.btn {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    padding: 1rem 2rem;
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-primary {
    background: var(--color-charcoal);
    color: var(--color-cream);
}

.btn-primary:hover {
    background: var(--color-gold);
}

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

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

.btn-arrow {
    transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-large {
    font-size: 0.9rem;
    padding: 1.25rem 2.5rem;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.editor-window {
    width: 100%;
    max-width: 500px;
    background: var(--color-white);
    border-radius: 12px;
    box-shadow: 0 60px 120px rgba(26, 26, 26, 0.08), 0 20px 40px rgba(26, 26, 26, 0.04);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform 0.1s ease-out;
    transform-style: preserve-3d;
}

.window-header {
    display: flex;
    gap: 8px;
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-cream);
}

.window-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-stone);
    opacity: 0.3;
}

.window-dot:first-child {
    background: #E57373;
    opacity: 1;
}

.window-dot:nth-child(2) {
    background: #F4D03F;
    opacity: 1;
}

.window-dot:nth-child(3) {
    background: #6BCF7F;
    opacity: 1;
}

.window-content {
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: 0.9rem;
    line-height: 1.6;
    position: relative;
}

.doc-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-charcoal);
    margin-bottom: 12px;
}

.doc-content {
    color: var(--color-charcoal);
}

.doc-paragraph {
    margin-bottom: 8px;
}

.doc-list {
    margin: 8px 0;
    padding-left: 20px;
}

.doc-list-item {
    margin-bottom: 4px;
    color: var(--color-charcoal);
}

.doc-list-item::marker {
    color: var(--color-gold);
}

.doc-highlight {
    color: var(--color-gold);
}

.doc-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--color-gold);
    margin-left: 4px;
    animation: blink 1s infinite;
    vertical-align: text-bottom;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Features Section */
.features {
    padding: var(--space-xl) var(--space-md);
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-eyebrow {
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-gold);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 300;
    color: var(--color-charcoal);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.feature-card {
    padding: var(--space-lg) var(--space-md);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: border-color var(--transition-fast);
}

.feature-card:hover {
    border-color: var(--color-gold);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: var(--space-md);
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-charcoal);
    margin-bottom: var(--space-sm);
}

.feature-desc {
    font-size: 0.95rem;
    color: var(--color-stone);
    line-height: 1.8;
}

/* About Section */
.about {
    padding: var(--space-xl) var(--space-md);
    max-width: 1400px;
    margin: 0 auto;
}

.about-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.about-eyebrow {
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-gold);
    margin-bottom: var(--space-sm);
}

.about-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 300;
    color: var(--color-charcoal);
    margin-bottom: var(--space-md);
}

.about-desc {
    font-size: 1.1rem;
    color: var(--color-stone);
    line-height: 1.9;
    margin-bottom: var(--space-md);
}

/* CTA Section */
.cta-section {
    padding: var(--space-xl) var(--space-md);
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    padding: var(--space-xl) 0;
    position: relative;
}

.cta-content::before {
    content: '◇';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.5rem;
    color: var(--color-gold);
}

.cta-eyebrow {
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-stone);
    margin-bottom: var(--space-sm);
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300;
    color: var(--color-charcoal);
    margin-bottom: var(--space-md);
}

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

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--color-stone);
}

/* Animations */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.fade-in-delay-1 {
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.1s forwards;
}

.fade-in-delay-2 {
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.2s forwards;
}

.fade-in-delay-3 {
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.3s forwards;
}

.fade-in-delay-4 {
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.4s forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        text-align: center;
    }

    .hero-content {
        align-items: center;
    }

    .hero-subtitle {
        margin: 0 auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .about-content {
        padding: 0;
    }

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

    .nav-link {
        display: none;
    }

    .editor-window {
        transform: none;
    }
}

@media (max-width: 640px) {
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-sm);
    }
}