/* ===========================================================
   RAVE IN DER RÖHRE — style.css
   Brutalistischer U-Bahn-Schacht-Techno-Look
   =========================================================== */

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

:root {
  /* Kernfarben */
  --bg: #050505;
  --text: #e0e0e0;
  --accent: #ff0022;

  /* abgeleitete Farben */
  --accent-dim: #7a0011;
  --accent-glow: rgba(255, 0, 34, 0.35);
  --border: #222222;
  --border-strong: #3a3a3a;
  --bg-raised: #0d0d0d;
  --bg-raised-2: #121212;
  --text-dim: #8a8a8a;

  /* Typografie */
  --font-display: "Space Grotesk", "Arial Narrow", sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  /* Spacing-Scale */
  --space-1: 0.4rem;
  --space-2: 0.8rem;
  --space-3: 1.6rem;
  --space-4: 2.4rem;
  --space-5: 4rem;
  --space-6: 6.4rem;
  --space-7: 9.6rem;

  /* Layout */
  --header-height: 4.6rem;
  --content-max: 76rem;
}

html {
  font-size: 100%;
  scroll-behavior: auto;
}

html,
body {
  overflow-x: hidden;
  width: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 0.98;
  margin: 0;
}

p {
  margin: 0 0 var(--space-3);
}

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

ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

img, svg, canvas {
  display: block;
  max-width: 100%;
}

/* Fokus-Styles */
a:focus-visible,
button:focus-visible,
dialog:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ===========================================================
   Noise-Overlay
   =========================================================== */

.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  mix-blend-mode: overlay;
}

/* ===========================================================
   Buttons
   =========================================================== */

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.btn-accent {
  background: var(--accent);
  color: #050505;
  border-color: var(--accent);
}

.btn-accent:hover,
.btn-accent:focus-visible {
  background: #050505;
  color: var(--accent);
}

.btn-lg {
  padding: var(--space-3) var(--space-4);
  font-size: 0.95rem;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

/* ===========================================================
   Header / Navbar
   =========================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 500;
  background: rgba(5, 5, 5, 0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  height: 100%;
  max-width: 90rem;
  margin: 0 auto;
  padding: 0 var(--space-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: var(--text);
  white-space: nowrap;
}

.cursor-blink {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.main-nav {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  flex: 1;
  padding: 0 var(--space-2);
  scrollbar-width: none;
}

.main-nav::-webkit-scrollbar {
  display: none;
}

.main-nav a {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  white-space: nowrap;
  padding: var(--space-1) 0;
  border-bottom: 1px solid transparent;
  flex-shrink: 0;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.nav-ticket-btn {
  font-size: 0.72rem;
  padding: var(--space-1) var(--space-2);
  flex-shrink: 0;
}

/* ===========================================================
   Hero
   =========================================================== */

.hero {
  position: relative;
  height: 100svh;
  min-height: 100svh;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
}

#tunnel {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: var(--bg);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 var(--space-3);
  padding-top: var(--header-height);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  max-width: 60rem;
}

.hero-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  margin: 0;
}

.hero-title {
  font-size: clamp(3rem, 12vw, 9rem);
  margin: var(--space-2) 0;
}

.chrome-text {
  background: linear-gradient(
    to bottom,
    #4a4a4a 0%,
    #cfcfcf 30%,
    #ffffff 48%,
    #4a4a4a 51%,
    #9a9a9a 60%,
    #eaeaea 75%,
    #5a5a5a 100%
  );
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.hero-date {
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--text);
  margin: 0 0 var(--space-2);
}

.scroll-hint {
  margin-top: var(--space-4);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.scroll-arrow {
  display: inline-block;
  animation: bob 1.6s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ===========================================================
   Marquee
   =========================================================== */

.marquee {
  width: 100%;
  overflow: hidden;
  background: var(--accent);
  border-bottom: 1px solid var(--border);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 22s linear infinite;
}

.marquee-item {
  display: inline-block;
  white-space: nowrap;
  color: #050505;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  padding: var(--space-2) 0;
}

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

/* ===========================================================
   Sections general
   =========================================================== */

.section {
  border-top: 1px solid var(--border);
  padding: var(--space-6) var(--space-3);
  max-width: 90rem;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(2.2rem, 8vw, 4.5rem);
  margin-bottom: var(--space-5);
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================================================
   Lineup
   =========================================================== */

.lineup-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
}

.artist-card {
  background: var(--bg);
  padding: var(--space-4) var(--space-3);
  position: relative;
  overflow: hidden;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.artist-card:hover,
.artist-card:focus-within {
  background: var(--accent);
  color: #050505;
}

.artist-card:hover .artist-number {
  color: #050505;
}

.artist-number {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: var(--space-3);
  transition: color 0.15s ease;
}

.artist-name {
  font-size: clamp(1.8rem, 6vw, 2.6rem);
  margin-bottom: var(--space-2);
  position: relative;
  display: inline-block;
}

.artist-card:hover .artist-name {
  animation: glitch 0.4s steps(2, jump-none) infinite;
  text-shadow: 2px 0 var(--bg), -2px 0 #050505;
}

@keyframes glitch {
  0% {
    transform: translate(0, 0);
    clip-path: inset(0 0 0 0);
  }
  20% {
    transform: translate(-2px, 1px);
    clip-path: inset(10% 0 60% 0);
  }
  40% {
    transform: translate(2px, -1px);
    clip-path: inset(50% 0 10% 0);
  }
  60% {
    transform: translate(-1px, 0);
    clip-path: inset(30% 0 40% 0);
  }
  80% {
    transform: translate(1px, 1px);
    clip-path: inset(5% 0 80% 0);
  }
  100% {
    transform: translate(0, 0);
    clip-path: inset(0 0 0 0);
  }
}

.artist-sub {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin: 0;
}

.artist-card:hover .artist-sub {
  color: #050505;
}

/* ===========================================================
   Timetable
   =========================================================== */

.timetable-list {
  max-width: var(--content-max);
}

.timetable-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--border);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.timetable-row:last-child {
  border-bottom: 1px solid var(--border);
}

.timetable-row:hover {
  background: var(--accent);
  color: #050505;
}

.timetable-row:hover .tt-time {
  color: #050505;
}

.tt-time {
  color: var(--accent);
  font-weight: 700;
  min-width: 11rem;
}

.tt-artist {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.tt-artist em {
  font-style: normal;
  color: var(--text-dim);
  font-weight: 400;
}

.timetable-row:hover .tt-artist em {
  color: #050505;
}

/* ===========================================================
   Location
   =========================================================== */

.location-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  max-width: var(--content-max);
}

.location-text p {
  font-size: 0.95rem;
}

.location-anfahrt {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 0.85rem;
}

.location-info {
  border: 1px solid var(--border);
}

.info-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}

.info-row:last-child {
  border-bottom: none;
}

.info-row span:last-child {
  color: var(--accent);
  font-weight: 700;
}

/* ===========================================================
   Footer
   =========================================================== */

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-5) var(--space-3);
}

.footer-inner {
  max-width: 90rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-logo {
  font-size: 1.3rem;
}

.footer-links {
  display: flex;
  gap: var(--space-3);
}

.footer-links a {
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--accent);
}

.footer-copy,
.footer-note {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin: 0;
}

/* ===========================================================
   Ticket Modal
   =========================================================== */

dialog#ticket-modal {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--accent);
  padding: 0;
  width: min(92vw, 30rem);
  max-height: 90vh;
  overflow-y: auto;
}

dialog#ticket-modal::backdrop {
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(4px);
}

.modal-inner {
  position: relative;
  padding: var(--space-5) var(--space-4) var(--space-4);
}

.modal-close {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-size: 1.3rem;
  line-height: 1;
  width: 2.2rem;
  height: 2.2rem;
  cursor: pointer;
}

.modal-close:hover,
.modal-close:focus-visible {
  background: var(--accent);
  color: #050505;
  border-color: var(--accent);
}

.modal-title {
  font-size: clamp(1.6rem, 6vw, 2.2rem);
  margin-bottom: var(--space-3);
}

.modal-line {
  font-size: 0.95rem;
  margin-bottom: var(--space-3);
}

.stepper {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.stepper-btn {
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
  font-size: 1.3rem;
  font-family: var(--font-mono);
  cursor: pointer;
}

.stepper-btn:hover:not(:disabled),
.stepper-btn:focus-visible:not(:disabled) {
  background: var(--accent);
  color: #050505;
  border-color: var(--accent);
}

.stepper-count {
  font-size: 1.2rem;
  font-weight: 700;
  min-width: 2ch;
  text-align: center;
}

.modal-total {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.modal-total span {
  color: var(--accent);
}

.modal-view-success {
  text-align: center;
}

.success-check {
  color: var(--accent);
  font-size: 3rem;
  line-height: 1;
  margin-bottom: var(--space-2);
}

/* ===========================================================
   Media Queries — Mobile-first upward
   =========================================================== */

@media (min-width: 768px) {
  .lineup-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .location-grid {
    grid-template-columns: 1.4fr 1fr;
  }

  .main-nav {
    overflow-x: visible;
  }
}

@media (min-width: 1100px) {
  .lineup-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .main-nav {
    gap: var(--space-4);
  }

  .main-nav a {
    font-size: 0.85rem;
  }
}

/* ===========================================================
   Reduced motion
   =========================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .cursor-blink {
    animation: none;
    opacity: 1;
  }

  .marquee-track {
    animation: none;
  }

  .scroll-arrow {
    animation: none;
  }
}