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

:root {
    --bg: #0B0E11;
    --surface: #11161C;
    --text-primary: #E8EDF2;
    --text-secondary: #A9B4C0;
    --divider: #1F2A33;
    --accent: #18C57A;
    --accent-dark: #0EA66A;
    --font-serif: 'IBM Plex Serif', Georgia, serif;
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --max-width: 1040px;
}

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.7;
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover { color: var(--accent-dark); }

/* === Header === */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(11, 14, 17, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--divider);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.04em;
}

nav { display: flex; align-items: center; gap: 2rem; }
nav a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}
nav a:hover { color: var(--text-primary); }

.lang-toggle {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-left: 1.5rem;
}
.lang-toggle a { color: var(--text-secondary); }
.lang-toggle a.active { color: var(--accent); }

/* === Hero === */
.hero {
    padding: 7rem 0 3rem;
    position: relative;
    overflow: hidden;
}

#network-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
}

/* Section particles */
.section-particles { position: relative; overflow: hidden; }
.particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}
.section-particles > .container { position: relative; z-index: 1; }

/* Origin photo */
.origin-photo {
    float: left;
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 50%;
    margin: 0.3rem 1.5rem 1rem 0;
    filter: grayscale(100%);
    shape-outside: circle(50%);
}

.hero-name {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.hero-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 2rem;
    letter-spacing: 0.02em;
}

.ticker {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    opacity: 0.6;
    margin-left: 0.5rem;
}

h1 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 3.5vw, 2.6rem);
    font-weight: 500;
    line-height: 1.35;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.hero-sub {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.hero-context {
    font-size: 0.9rem;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* === Sections === */
.section { padding: 4rem 0; }

h2 {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 500;
    margin-bottom: 2rem;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

/* === Divider === */
.divider hr {
    border: none;
    border-top: 1px solid var(--divider);
}

/* === Manifesto === */
.manifesto-content p {
    color: var(--text-secondary);
    max-width: 720px;
    margin-bottom: 1.5rem;
}

.manifesto-principles {
    border-left: 2px solid var(--accent);
    padding-left: 1.5rem;
    margin: 2.5rem 0;
}

.manifesto-principles p {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
    font-weight: 400;
}

/* === Focus Grid === */
.focus-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.focus-card {
    background: var(--surface);
    border: 1px solid var(--divider);
    border-radius: 4px;
    padding: 2rem;
}

.focus-card-wide {
    grid-column: 1 / -1;
}

.focus-card h3 {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.focus-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.focus-card ul {
    list-style: none;
    margin: 1rem 0;
    padding: 0;
}

.focus-card ul li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    padding: 0.3rem 0;
    padding-left: 1.2rem;
    position: relative;
}

.focus-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.75rem;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent);
}

.focus-footnote {
    margin-top: 1rem;
    font-style: italic;
    opacity: 0.8;
}

/* === Origin === */
.origin-content p {
    color: var(--text-secondary);
    max-width: 720px;
    margin-bottom: 1.5rem;
}

/* === Contact === */
#contact p {
    font-size: 1.05rem;
}

/* === Footer === */
footer {
    padding: 3rem 0;
    border-top: 1px solid var(--divider);
}

footer p {
    color: var(--text-secondary);
    font-size: 0.8rem;
    opacity: 0.6;
}

/* === Responsive === */
@media (max-width: 768px) {
    .hero { padding: 6rem 0 3rem; }
    .origin-photo { width: 90px; height: 90px; }
    nav { gap: 1rem; }
    nav a { font-size: 0.75rem; }
    .lang-toggle { padding-left: 1rem; margin-left: 0.5rem; }
    .focus-grid { grid-template-columns: 1fr; }
    .section { padding: 3rem 0; }
    .container { padding: 0 1.25rem; }
}

@media (max-width: 480px) {
    .header-inner { height: 52px; }
    nav { gap: 0.6rem; flex-wrap: wrap; }
    nav a { font-size: 0.7rem; }
    .lang-toggle { padding-left: 0.6rem; margin-left: 0.3rem; font-size: 0.7rem; }
    .hero-name { font-size: 0.95rem; }
    h1 { font-size: 1.75rem; }
}