/* ── Spook Systems .net — Global Styles ── */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a25;
  --text-primary: #d0d0d8;
  --text-secondary: #9999aa;
  --accent: #5a5a6e;
  --accent-glow: rgba(90, 90, 110, 0.3);
  --accent-bright: #b8b8c8;
  --border: #2a2a3a;
  --success: #00cec9;
  --code-bg: #141420;
  --nav-height: 60px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Three.js canvas ── */

#three-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ── Navigation ── */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  height: var(--nav-height);
  padding: 0 24px;
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 3px;
  color: #ffffff;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-brand span {
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 24px;
  margin-left: auto;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.5px;
  padding: 6px 0;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: #ffffff;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
  margin-right: 12px;
  padding: 4px 8px;
  transition: transform 0.2s;
}

.nav-toggle.open {
  transform: rotate(90deg);
}

@media (max-width: 700px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10,10,15,0.95);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    gap: 8px;
  }
  .nav-links.show { display: flex; }
}

/* ── Main content ── */

main {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: calc(var(--nav-height) + 40px) 24px 60px;
  min-height: 80vh;
}

.md-content { animation: fadeIn 0.4s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Footer ── */

footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 32px 24px 40px;
  font-size: 11px;
  color: var(--text-secondary);
  opacity: 0.6;
  line-height: 1.8;
}

footer a {
  color: var(--accent-bright);
  text-decoration: none;
}

/* ── Hero (Home page) ── */

.hero {
  text-align: center;
  padding: 80px 0 40px;
}

.hero-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(18px, 3vw, 26px);
  font-weight: 600;
  letter-spacing: 4px;
  color: #ffffff;
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

.hero-sub code {
  font-family: 'JetBrains Mono', monospace;
  background: var(--code-bg);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--success);
}

.hero-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  max-width: 760px;
  margin: 0 auto;
}

.feature-card {
  background: rgba(18, 18, 26, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 24px;
  color: var(--success);
  margin-bottom: 12px;
}

.feature-card h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  margin-bottom: 8px;
  color: #ffffff;
}

.feature-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Control Panel ── */

.panel-header {
  margin-bottom: 32px;
}

.panel-header h1 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 2px;
  color: #ffffff;
  margin-bottom: 8px;
}

.panel-welcome {
  font-size: 14px;
  color: var(--text-secondary);
}

.panel-welcome strong {
  color: var(--success);
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.panel-card {
  background: rgba(18, 18, 26, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 20px;
  transition: border-color 0.2s, transform 0.2s;
}

.panel-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.panel-card h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--success);
  margin-bottom: 10px;
  text-transform: uppercase;
}

.panel-stat {
  font-family: 'JetBrains Mono', monospace;
  font-size: 20px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 8px;
}

.panel-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── SpookVis ── */

.spookvis-placeholder {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.vis-card {
  background: rgba(18, 18, 26, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 20px;
}

.vis-card h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--success);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.vis-empty {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.5px;
}

/* ── Loading ── */

.loading {
  text-align: center;
  padding: 60px 0;
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  letter-spacing: 1px;
}

/* ── Portrait / mobile: stack SpookVis widgets vertically ── */
@media (max-width: 900px) {
  .vis-grid {
    grid-template-columns: 1fr !important;
  }

  .vis-grid > div {
    height: auto !important;
    min-height: 280px;
  }

  .vis-grid > div:has(#vis-sessions-list),
  .vis-grid > div:has(#vis-substrate-content) {
    min-height: 220px;
  }
}