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

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

:root {
  --bg:     #F2F0EB;
  --ink:    #1A1A1A;
  --muted:  #888;
  --border: #1A1A1A;
  --acc:    #00AAFF;
  --acc-bg: #E6F6FF;
  --white:  #FFFFFF;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--bg);
  border-bottom: 1.5px solid var(--border);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
}

.nav-left {
  padding: 0 24px;
  display: flex;
  align-items: center;
  border-right: 1.5px solid var(--border);
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.nav-left a { color: var(--ink); }
.nav-left a:hover { color: var(--acc); }

.nav-center {
  padding: 18px 32px;
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-right {
  padding: 0 16px 0 24px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  border-left: 1.5px solid var(--border);
}

/* Hamburger */
.burger {
  background: none;
  border: 1.5px solid var(--border);
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink);
  padding: 8px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background 0.2s, color 0.2s;
}
.burger:hover { background: var(--ink); color: var(--bg); }

.burger-lines { display: flex; flex-direction: column; gap: 4px; width: 16px; }
.burger-lines span { display: block; height: 1.5px; background: currentColor; transition: transform 0.3s, opacity 0.2s; }
.burger.open .burger-lines span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.burger.open .burger-lines span:nth-child(2) { opacity: 0; }
.burger.open .burger-lines span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ── MENU OVERLAY ── */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 190;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.3s, transform 0.35s cubic-bezier(0.16,1,0.3,1);
}
.menu-overlay.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.menu-panel {
  background: var(--bg);
  border-bottom: 1.5px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  margin-top: 57px; /* nav height */
}

.menu-col {
  padding: 48px 56px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.menu-divider { background: var(--border); }

.menu-section-label {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.15em;
  margin-bottom: 20px;
}

.menu-link {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
  transition: color 0.2s;
  display: inline-block;
}
.menu-link:hover, .menu-link.active { color: var(--acc); }

.menu-channel-group { margin-bottom: 20px; }
.menu-channel-name {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.menu-channel-links { display: flex; gap: 6px; flex-wrap: wrap; }
.menu-channel-pill {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1.5px solid #CCC;
  padding: 4px 12px;
  transition: all 0.2s;
}
.menu-channel-pill:hover { border-color: var(--acc); color: var(--acc); }

.menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(26,26,26,0.4);
  z-index: -1;
}

/* ── PAGE HEADER ── */
.page-header {
  border-bottom: 1.5px solid var(--border);
  display: grid;
  grid-template-columns: auto 1fr;
}

.page-header-num {
  padding: 40px 32px;
  border-right: 1.5px solid var(--border);
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.1em;
  writing-mode: vertical-lr;
  display: flex;
  align-items: center;
}

.page-header-content { padding: 40px 48px; }

.page-tag {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.15em;
  margin-bottom: 16px;
}

.page-title {
  font-size: clamp(52px, 8vw, 96px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 0.9;
  color: var(--ink);
}
.page-title .acc { color: var(--acc); }

/* ── FOOTER ── */
footer {
  border-top: 1.5px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

footer div {
  padding: 20px 28px;
  border-right: 1.5px solid var(--border);
  display: flex;
  align-items: center;
}
footer div:last-child { border-right: none; justify-content: flex-end; }
footer div:nth-child(2) { justify-content: center; }

/* ── MARQUEE ── */
.marquee-wrap {
  border-top: 1.5px solid var(--border);
  overflow: hidden;
  height: 30px;
  display: flex;
  align-items: center;
  background: var(--bg);
}
.marquee-track {
  display: flex;
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 200%;
  animation: marquee 36s linear infinite;
}
.marquee-track span {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--muted);
  padding: 0 32px;
  flex-shrink: 0;
}
.marquee-track span::before { content: '/ '; color: var(--acc); margin-right: 8px; }

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── UTILITY ── */
.mono { font-family: 'Space Mono', monospace; }
.acc-text { color: var(--acc); }
.border-b { border-bottom: 1.5px solid var(--border); }
.border-r { border-right: 1.5px solid var(--border); }

/* ── ANIMATIONS ── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade { opacity: 0; animation: fadeIn 0.6s cubic-bezier(0.16,1,0.3,1) forwards; }
.fade-d1 { animation-delay: 0.1s; }
.fade-d2 { animation-delay: 0.2s; }
.fade-d3 { animation-delay: 0.3s; }
.fade-d4 { animation-delay: 0.4s; }
.fade-d5 { animation-delay: 0.5s; }

/* ── RESPONSIVE ── */
@media (max-width: 700px) {
  .menu-panel { grid-template-columns: 1fr; }
  .menu-divider { display: none; }
  .menu-col { padding: 32px 28px; }
  .menu-link { font-size: 30px; }
  .page-header { grid-template-columns: 1fr; }
  .page-header-num { writing-mode: horizontal-tb; border-right: none; border-bottom: 1.5px solid var(--border); }
  footer { grid-template-columns: 1fr; }
  footer div { border-right: none; border-bottom: 1.5px solid var(--border); }
  footer div:last-child { border-bottom: none; }
}

/* ─────────────────────────────────────────
   GLOBAL MOBILE IMPROVEMENTS
───────────────────────────────────────── */

/* Tap targets minimum 44px */
@media (max-width: 800px) {
  .burger { padding: 10px 18px; min-height: 44px; }

  /* Nav touch improvements */
  .nav-left { padding: 0 16px; font-size: 11px; }
  .nav-center { padding: 14px 16px; font-size: 12px; }
  .nav-right { padding: 0 12px; }

  /* Page headers tighter on mobile */
  .page-header-content { padding: 24px 20px; }
  .page-header-num { padding: 16px 20px; font-size: 10px; }
  .page-title { font-size: clamp(36px, 10vw, 68px); }
  .page-tag { font-size: 9px; margin-bottom: 10px; }

  /* Footer stacked */
  footer { grid-template-columns: 1fr; }
  footer div { border-right: none; border-bottom: 1.5px solid var(--border); }
  footer div:last-child { border-bottom: none; justify-content: flex-start; }
  footer div:nth-child(2) { justify-content: flex-start; }

  /* Menu overlay full-screen on mobile */
  .menu-panel {
    grid-template-columns: 1fr;
    overflow-y: auto;
    max-height: calc(100vh - 57px);
  }
  .menu-divider { display: none; }
  .menu-col { padding: 28px 20px; gap: 2px; }
  .menu-link { font-size: 30px; line-height: 1.2; }
  .menu-channel-group { margin-bottom: 16px; }

  /* Marquee slower on mobile */
  .marquee-track { animation-duration: 20s; }
}

@media (max-width: 480px) {
  nav {
    grid-template-columns: 1fr auto; /* PALEX left, buttons right */
  }
  .nav-left {
    display: none;
  }
  .nav-center {
    padding: 14px 20px;
    justify-content: flex-start; /* PALEX oben links */
    border-left: none;
  }
  .nav-right {
    padding: 0 12px;
    border-left: 1.5px solid var(--border);
  }
  .page-header-content { padding: 24px 20px; }
  .menu-link { font-size: 28px; }
}

/* ═══════════════════════════════════════════
   DARK MODE
   Aktiviert durch:
   1. System-Präferenz (prefers-color-scheme)
   2. Tageszeit-Logik via JS (vor 7h / nach 20h)
   3. Manueller Toggle (data-theme="dark" auf <html>)
═══════════════════════════════════════════ */

:root[data-theme="dark"],
:root[data-theme="auto"].is-dark {
  --bg:     #111111;
  --ink:    #F0EEE9;
  --muted:  #666;
  --border: #2A2A2A;
  --acc:    #00AAFF;
  --acc-bg: #0A1A24;
  --white:  #FFFFFF;
}

/* Smooth transitions on theme change */
body {
  transition: background 0.3s ease, color 0.3s ease;
}

/* Dark mode nav bg */
:root[data-theme="dark"] nav,
:root[data-theme="auto"].is-dark nav,
:root[data-theme="dark"] .menu-panel,
:root[data-theme="auto"].is-dark .menu-panel {
  background: var(--bg);
}

/* Dark mode intro loader */
:root[data-theme="dark"] #intro,
:root[data-theme="auto"].is-dark #intro {
  background: #0A0A0A;
}

/* Dark mode form fields */
:root[data-theme="dark"] .form-field input,
:root[data-theme="dark"] .form-field select,
:root[data-theme="dark"] .form-field textarea,
:root[data-theme="auto"].is-dark .form-field input,
:root[data-theme="auto"].is-dark .form-field select,
:root[data-theme="auto"].is-dark .form-field textarea {
  color: var(--ink);
}
:root[data-theme="dark"] .form-field input::placeholder,
:root[data-theme="dark"] .form-field textarea::placeholder,
:root[data-theme="auto"].is-dark .form-field input::placeholder,
:root[data-theme="auto"].is-dark .form-field textarea::placeholder {
  color: #444;
}
:root[data-theme="dark"] .form-field select option,
:root[data-theme="auto"].is-dark .form-field select option {
  background: var(--bg);
  color: var(--ink);
}

/* Dark mode ch-card hover */
:root[data-theme="dark"] .ch-card:hover,
:root[data-theme="auto"].is-dark .ch-card:hover {
  background: #1E1E1E;
}

/* ── THEME TOGGLE BUTTON ── */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  transition: color 0.2s;
  font-size: 16px;
  min-width: 36px;
  min-height: 36px;
}
.theme-toggle:hover { color: var(--acc); }

/* Sun/moon icons */
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }

:root[data-theme="dark"] .theme-toggle .icon-sun,
:root[data-theme="auto"].is-dark .theme-toggle .icon-sun  { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon,
:root[data-theme="auto"].is-dark .theme-toggle .icon-moon { display: none; }

/* Marquee dark fix */
:root[data-theme="dark"] .marquee-wrap,
:root[data-theme="auto"].is-dark .marquee-wrap {
  background: var(--bg);
}