@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500&family=JetBrains+Mono:wght@100..400&display=swap');

:root {
    --bg-base: #000000;
    --border-subtle: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.2);
    
    --text-primary: #ffffff;
    --text-muted: #666666;
    --text-micro: #444444;
    
    --accent-primary: #ffffff; /* Minimalist default */
    
    --font-display: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 60px;
}

/* Precise Typography */
.display-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

.micro-label {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--text-muted);
    display: block;
    margin-bottom: 1rem;
}

.body-lead {
    font-size: 1rem;
    font-weight: 300;
    color: var(--text-muted);
    max-width: 500px;
    line-height: 1.6;
}

/* Minimalist Components */
.divider {
    height: 1px;
    background: var(--border-subtle);
    width: 100%;
    margin: 4rem 0;
}

.structural-card {
    border-left: 1px solid var(--border-subtle);
    padding: 2rem 0 2rem 3rem;
    transition: border-color 0.4s ease;
}

.structural-card:hover {
    border-color: var(--text-primary);
}

.structural-title {
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

/* USID - Micro Edition */
.usid-compact {
    position: fixed;
    top: 40px; right: 60px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-family: var(--font-mono);
    z-index: 100;
}

.usid-id { font-size: 10px; color: #fff; letter-spacing: 2px; }
.usid-status { font-size: 8px; color: var(--text-muted); margin-top: 4px; }

/* Disclaimer */
.legal-minimal {
    margin-top: 10rem;
    padding-bottom: 4rem;
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--text-micro);
    line-height: 1.8;
    max-width: 800px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Reveal Animation */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.reveal { animation: fadeIn 2s ease forwards; }

/* Theme Accents */
.theme-red { --accent-primary: #FF2D55; }
.theme-green { --accent-primary: #00FFBB; }
.theme-purple { --accent-primary: #BF5AF2; }
.accent-dot { width: 4px; height: 4px; background: var(--accent-primary); border-radius: 50%; display: inline-block; margin-right: 8px; vertical-align: middle; }