@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@700;900&family=Inter:wght@400;500;600&display=swap');

:root {
  --c-bg:       #080812;
  --c-bg-alt:   #0e0e1e;
  --c-fg:       #f0f0f8;
  --c-muted:    #7a7a9a;
  --c-accent:   #00e5ff;
  --c-accent-dim: #00b8cc;
  --c-surface:  #13132a;
  --c-border:   #1e1e3a;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 7rem;

  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 20px;

  --font-display: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --z-nav: 100;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--c-bg);
}

body {
  font-family: var(--font-body);
  background-color: var(--c-bg);
  color: var(--c-fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  background-color: rgba(8,8,18,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-border);
  padding-block: var(--space-2);
}

.header-inner {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.header-logo img,
.header-logo svg { width: 36px; height: 36px; }

.header-brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-fg);
  white-space: nowrap;
}

.header-brand span { color: var(--c-accent); }

.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.page-hero {
  padding-top: calc(80px + var(--space-5));
  padding-bottom: var(--space-5);
  background-color: var(--c-bg-alt);
  border-bottom: 1px solid var(--c-border);
  position: relative;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--c-accent), transparent);
}

.page-hero-inner {
  max-width: 760px;
}

.label-tag {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.accent-line {
  display: inline-block;
  width: 48px;
  height: 3px;
  background: var(--c-accent);
  margin-bottom: var(--space-2);
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--c-fg);
  margin-block: var(--space-2);
}

.page-meta {
  font-size: 0.85rem;
  color: var(--c-muted);
  margin-top: var(--space-2);
}

.page-content {
  padding-block: var(--space-5);
}

.page-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-5);
  align-items: start;
}

.page-toc {
  position: sticky;
  top: 90px;
}

.page-toc h3 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--c-muted);
  margin-bottom: var(--space-2);
}

.page-toc ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  border-left: 1px solid var(--c-border);
  padding-left: var(--space-2);
}

.page-toc ul li a {
  font-size: 0.85rem;
  color: var(--c-muted);
  transition: color 0.2s;
}

.page-toc ul li a:hover { color: var(--c-accent); }

.prose { max-width: 720px; }

.prose h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--c-fg);
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--c-border);
}

.prose h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.prose h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--c-fg);
  margin-top: var(--space-4);
  margin-bottom: var(--space-1);
}

.prose p {
  font-size: 0.95rem;
  color: var(--c-muted);
  line-height: 1.75;
  margin-bottom: var(--space-2);
}

.prose ul, .prose ol {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
  padding-left: var(--space-3);
}

.prose ul li::before {
  content: '—';
  color: var(--c-accent);
  margin-right: 0.5rem;
}

.prose ol { counter-reset: prose-counter; }
.prose ol li { counter-increment: prose-counter; }
.prose ol li::before {
  content: counter(prose-counter) '.';
  color: var(--c-accent);
  margin-right: 0.5rem;
  font-weight: 600;
}

.prose li {
  font-size: 0.95rem;
  color: var(--c-muted);
  line-height: 1.65;
}

.prose a { color: var(--c-accent); text-decoration: underline; }
.prose a:hover { color: var(--c-accent-dim); }

.prose strong { color: var(--c-fg); font-weight: 600; }

.prose .notice {
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  margin-block: var(--space-3);
}

.prose .notice p { margin-bottom: 0; }

.about-blocks {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.about-block {
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--c-border);
}

.about-block:last-child { border-bottom: none; }

.about-block-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
}

.about-block-inner.reverse { direction: rtl; }
.about-block-inner.reverse > * { direction: ltr; }

.about-block-text {}

.about-block-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--c-fg);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.about-block-text p {
  font-size: 0.95rem;
  color: var(--c-muted);
  line-height: 1.75;
  margin-bottom: var(--space-2);
}

.about-block-img {
  aspect-ratio: 4/3;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.about-block-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.about-value {
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

.about-value-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--c-accent);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: var(--space-1);
}

.about-value h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--c-fg);
  margin-bottom: var(--space-1);
}

.about-value p { font-size: 0.85rem; color: var(--c-muted); line-height: 1.6; }

.about-timeline {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.timeline-item {
  padding-left: var(--space-4);
  border-left: 3px solid var(--c-accent);
  position: relative;
}

.timeline-marker {
  position: absolute;
  left: -28px;
  top: 0;
  width: 56px;
  height: 56px;
  background-color: var(--c-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-bg);
  font-family: var(--font-display);
}

.timeline-item h4 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-1);
  color: var(--c-fg);
}

.timeline-item p {
  color: var(--c-muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

.about-principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.principle {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
}

.principle-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--c-accent);
  opacity: 0.5;
  margin-bottom: var(--space-2);
}

.principle h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
  color: var(--c-fg);
}

.principle p {
  color: var(--c-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

.site-footer {
  background-color: var(--c-bg);
  border-top: 1px solid var(--c-border);
  padding-block: var(--space-4);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 0.8rem; color: var(--c-muted); }

.footer-links { display: flex; gap: var(--space-3); }
.footer-links a { font-size: 0.8rem; color: var(--c-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--c-accent); }

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: var(--space-2);
}

.footer-logo img { width: 28px; height: 28px; }

.footer-logo-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-fg);
}

.footer-logo-name span { color: var(--c-accent); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.8rem var(--space-3);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.btn-primary {
  background-color: var(--c-accent);
  color: var(--c-bg);
  box-shadow: 0 0 20px rgba(0,229,255,0.3);
}

.btn-primary:hover { background-color: var(--c-accent-dim); }

.btn-outline {
  background-color: transparent;
  color: var(--c-fg);
  border: 1.5px solid var(--c-border);
}

.btn-outline:hover { border-color: var(--c-accent); color: var(--c-accent); }

@media (max-width: 1024px) {
  .page-layout { grid-template-columns: 1fr; }
  .page-toc { position: static; margin-bottom: var(--space-3); display: none; }

  .about-block-inner,
  .about-block-inner.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .about-values { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  :root {
    --space-4: 1.5rem;
    --space-5: 2.5rem;
  }

  .container { padding-inline: var(--space-3); }

  .about-values { grid-template-columns: 1fr; }

  .footer-bottom { flex-direction: column; align-items: flex-start; gap: var(--space-2); }
}

.about-block-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}