:root {
    --bg-color: #ffffff;
    --text-color: #000000;
    --text-dim: #666666;
    --accent-color: #00BA4A;
    --border-color: #eeeeee;
    --dot-color: #cccccc;
    --font-serif: 'Instrument Serif', serif;
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="dark"] {
    --bg-color: #050505;
    --text-color: #ffffff;
    --text-dim: #a0a0a0;
    --accent-color: #00FF66;
    --border-color: #222222;
    --dot-color: #444444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -10;
    background-image: url("data:image/svg+xml,%3Csvg width='240' height='240' viewBox='0 0 240 240' xmlns='http://www.w3.org/2000/svg'%3E%3Ctext x='50%25' y='50%25' font-size='18' font-family='JetBrains Mono, monospace' fill='black' opacity='0.07' transform='rotate(-45 120 120)' text-anchor='middle'%3E0x402%3C/text%3E%3C/svg%3E");
    background-repeat: repeat;
}

[data-theme="dark"] body::before {
    background-image: url("data:image/svg+xml,%3Csvg width='240' height='240' viewBox='0 0 240 240' xmlns='http://www.w3.org/2000/svg'%3E%3Ctext x='50%25' y='50%25' font-size='18' font-family='JetBrains Mono, monospace' fill='white' opacity='0.08' transform='rotate(-45 120 120)' text-anchor='middle'%3E0x402%3C/text%3E%3C/svg%3E");
}

/* Base grid pattern */
.background-watermark {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -9;
    opacity: 0.02;
    background-image: radial-gradient(var(--text-color) 1px, transparent 1px);
    background-size: 80px 80px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.serif-title {
    font-family: var(--font-serif);
    font-weight: 400;
}

.italic {
    font-style: italic;
}

.center {
    text-align: center;
}

.dim {
    color: var(--text-dim);
}

.green {
    color: var(--accent-color);
}

/* Layout Dividers */
.section-border {
    border-top: 1px dashed var(--dot-color);
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px;
    height: 80px;
    position: sticky;
    top: 0;
    background: var(--bg-color);
    z-index: 1000;
}

.logo {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    letter-spacing: -1px;
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.logo-subtitle {
    font-family: var(--font-serif);
    font-size: 14px;
    font-weight: 400;
    color: var(--text-color);
    letter-spacing: -0.2px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 14px;
    font-weight: 500;
}

.header-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
}

.theme-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
}

.btn-filled {
    background: var(--text-color);
    color: var(--bg-color);
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

/* Hero Section */
.hero {
    padding: 120px 0 100px;
}

.main-title {
    font-size: 100px;
    line-height: 0.85;
    letter-spacing: -4px;
    margin-bottom: 40px;
}

.hero-content {
    display: flex;
    flex-direction: column;
}

/* Terminal */
.terminal {
    border: 1px solid var(--text-color);
    border-radius: 4px;
    overflow: hidden;
}

.terminal-header {
    background: var(--text-color);
    color: var(--bg-color);
    padding: 12px 20px;
    font-family: var(--font-mono);
    font-size: 12px;
}

.terminal-body {
    background: #fcfcfc;
    padding: 40px;
    min-height: 200px;
    font-family: var(--font-mono);
}

[data-theme="dark"] .terminal-body {
    background: #0a0a0a;
}

.terminal-input-row {
    margin-top: 30px;
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 15px;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .terminal-input-row {
    background: rgba(255, 255, 255, 0.02);
}

#terminal-input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-color);
    font-family: inherit;
    font-size: 16px;
    flex: 1;
}

#terminal-input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-color);
    font-family: inherit;
    font-size: 16px;
    flex: 1;
    position: relative;
    z-index: 2;
}

#terminal-placeholder {
    position: absolute;
    left: 0;
    color: var(--text-color);
    opacity: 0.5;
    font-family: inherit;
    font-size: 16px;
    pointer-events: none;
    z-index: 1;
    animation: blink-smooth 2s ease-in-out infinite;
}

@keyframes blink-smooth {

    0%,
    100% {
        opacity: 0.6;
    }

    50% {
        opacity: 0.1;
    }
}

/* Hide fallback native placeholder if any exists */
#terminal-input::placeholder {
    color: transparent;
}

.terminal-footer {
    padding: 15px 40px;
    font-size: 13px;
    color: var(--text-dim);
    border-top: 1px solid var(--border-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Stats Row */
.stats-row {
    padding: 80px 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.stat-item .value {
    font-size: 72px;
    line-height: 1;
}

/* Feature Grid (Clean) */
.feature-section {
    padding: 120px 0;
}

.feature-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
}

.feature-list {
    list-style: none;
    margin-top: 40px;
}

.feature-list li {
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 16px;
    display: flex;
    align-items: center;
}

.feature-list li::before {
    content: '→';
    margin-right: 20px;
    color: var(--accent-color);
}

/* Value Props (5 columns) */
.value-props {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
    padding: 80px 0;
}

.value-card h4 {
    font-size: 18px;
    margin-bottom: 12px;
}

.value-card p {
    font-size: 14px;
    color: var(--text-dim);
}

/* Infrastructure Table */
.infra-table {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    padding: 100px 0;
}

.infra-list {
    display: flex;
    flex-direction: column;
}

.infra-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 18px;
}

/* Vision */
.vision {
    padding: 160px 0;
    text-align: center;
}

.vision h2 {
    font-size: 84px;
    line-height: 0.9;
    margin-bottom: 40px;
}

/* Footer */
.footer {
    padding: 100px 0;
    border-top: 1px dashed var(--dot-color);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 80px;
}

.giant-text {
    font-size: 25vw;
    font-weight: 800;
    letter-spacing: -1.5vw;
    opacity: 0.05;
    text-align: center;
    line-height: 0.7;
}

/* Responsive */
@media (max-width: 992px) {

    .hero-layout,
    .feature-layout,
    .infra-table {
        grid-template-columns: 1fr;
    }

    .value-props {
        grid-template-columns: 1fr 1fr;
    }

    .main-title {
        font-size: 64px;
    }
}