:root {
    /* Reference Aesthetic: "Technical Wireframe" */
    --bg-color: #050505;
    --surface-color: rgba(255, 255, 255, 0.02);
    --border-color: rgba(255, 255, 255, 0.15);
    --text-primary: #ededed;
    --text-secondary: #888888;
    --accent-color: #ffffff;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;

    /* Typography */
    --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-heading);
    line-height: 1.5;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* 1. Grid Background */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -2;
    pointer-events: none;
}

/* 2. Monitor/Terminal Vignette Glow */
body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 60%, rgba(0, 5, 20, 0.8) 100%);
    pointer-events: none;
    z-index: -1;
}

h1,
h2,
h3 {
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

h1 {
    font-size: 3.5rem;
    line-height: 0.9;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
    display: inline-block;
}

p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 1.5rem;
    max-width: 600px;
}

/* Small Metadata Text (Monospace) */
.mono-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.7;
    margin-bottom: var(--spacing-xs);
    display: block;
}

/* Buttons: Hard Shadows, Strict Borders */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    border: 1px solid var(--text-primary);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.1s;
    /* Hard Shadow */
    box-shadow: 4px 4px 0px 0px rgba(255, 255, 255, 0.1);
    margin-right: 1rem;
}

.btn:hover {
    transform: translate(-1px, -1px);
    box-shadow: 5px 5px 0px 0px var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-color);
    box-shadow: 4px 4px 0px 0px rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    background: #ffffff;
    box-shadow: 5px 5px 0px 0px rgba(255, 255, 255, 0.5);
}

.store-btn.disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background: #1a1a1a;
    border-color: #444;
    color: #666;
    border-style: solid;
    pointer-events: none;
    /* Ensures no click interaction */
}

.store-btn.disabled:hover {
    transform: none;
    box-shadow: none;
    background: #1a1a1a;
}

/* Lay.tooltip-container:hover .tooltip-text {
    visibility: visible;
} */

/* Phone Frame Carousel */
.phone-frame {
    border: 2px solid var(--text-primary);
    border-radius: 30px;
    padding: 10px;
    background: transparent;
    width: 300px;
    margin: 0 auto;
    box-shadow: 10px 10px 0px 0px rgba(255, 255, 255, 0.05);
    position: relative;
}

/* Wireframe "Notch" or Camera indicator */
.phone-frame::before {
    content: "";
    display: block;
    width: 60px;
    height: 4px;
    background: var(--text-primary);
    margin: 0 auto 10px auto;
    border-radius: 2px;
}

.phone-screen {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 9/19;
    /* Approximate modern phone ratio */
    background: #000;
    border: 1px solid var(--border-color);
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

/* Layout Container */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
    /* Slight darkening within container */
}

/* Beta Banner */
.beta-banner {
    position: sticky;
    top: 0;
    z-index: 100;
    background: repeating-linear-gradient(45deg,
            #1a1a1a,
            #1a1a1a 10px,
            #000 10px,
            #000 20px);
    border-bottom: 1px solid var(--text-primary);
    color: var(--text-primary);
    text-align: center;
    padding: 8px 0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: bold;
    letter-spacing: 0.1em;
}

/* Nav */
nav {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    margin-bottom: var(--spacing-lg);
}

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

.logo {
    font-family: var(--font-mono);
    font-weight: 700;
    letter-spacing: -0.05em;
}

.lang-switch {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
    opacity: 0.6;
}

.lang-switch:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Sections */
section {
    padding-bottom: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

section:last-child {
    border-bottom: none;
}

/* Hero */
.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-image img {
    width: 100%;
    /* Glitch effect or filter maybe? Keeping it simple for now */
    border: 1px solid var(--border-color);
    padding: 10px;
    background: rgba(255, 255, 255, 0.02);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    /* Gap is handled by margin on cards to allow creating 'border lines' between them? 
       Actually, grid gap + clear borders is cleaner */
    gap: 1px;
    background: var(--border-color);
    /* Lines between items */
    border: 1px solid var(--border-color);
}

.feature-card {
    background: var(--bg-color);
    padding: 2rem;
    transition: background 0.2s;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.03);
}

.feature-icon {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
    letter-spacing: -0.02em;
}

.feature-card p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Roadmap */
.roadmap-list {
    border-left: 1px solid var(--border-color);
    padding-left: var(--spacing-md);
    position: relative;
}

.roadmap-item {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.roadmap-item::before {
    content: "";
    position: absolute;
    left: calc(-1 * var(--spacing-md) - 5px);
    /* Align with border center (-1px/2 - wait, line is 1px) */
    top: 5px;
    width: 9px;
    height: 9px;
    background: var(--bg-color);
    border: 1px solid var(--text-secondary);
}

.roadmap-item[data-status="done"]::before {
    background: var(--text-primary);
    border-color: var(--text-primary);
}

.roadmap-status {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
    display: block;
}

/* Tech Stack */
.tech-grid {
    display: flex;
    gap: var(--spacing-md);
}

.tech-item {
    flex: 1;
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
    }

    .btn {
        width: 100%;
        margin-bottom: 1rem;
    }

    .tech-grid {
        flex-direction: column;
    }
}