/* ════════════════════════════════════════════════════════════════
 *  MBB Design System — Globale Stylesheet
 *  VMB-Digitalkonferenz 2026 · Ticket-Portal
 *
 *  Gemeinsame Basis für alle Seiten:
 *    Startseite · Ticket-Auswahl · Daten & Zahlung · Bestätigung
 *
 *  Inhalt:
 *    01. Design Tokens (Farben, Typografie, Maße, Verläufe)
 *    02. Reset & Basis-Typografie
 *    03. Hintergrund- & Dekor-Utilities
 *    04. Marke (Lockup, Live-Indikator, Hersteller-Reihe, Location)
 *    05. Oberflächen (Card, Chip, Divider, Separator)
 *    06. Formular-Elemente (Input, Checkbox, Field-Label, Toggle)
 *    07. Buttons (Primary, Ghost, Icon)
 *    08. Countdown
 *    09. Animationen & Keyframes
 *    10. Typo-Utilities (Eyebrow, Help, Mute)
 *
 *  Schriften: lokale System-Stacks. Wird "MB Corpo" auf dem Gerät
 *  gefunden, wird es bevorzugt (Mercedes-Benz CI-Schrift, proprietär).
 *  Andernfalls fällt der Browser auf die System-UI-Schrift zurück.
 * ════════════════════════════════════════════════════════════════ */


/* ════════════════════════════════════════════════════════════════
 * 01 · DESIGN TOKENS
 * ════════════════════════════════════════════════════════════════ */
:root {
  /* — Primär (CI dunkelblau) — */
  --c-ink-0:        #06121b;
  --c-ink-1:        #0d1f2b;
  --c-ink-2:        #0e2634;
  --c-ink-3:        #143043;

  /* — Akzent (Cyan) — */
  --c-cyan-1:       #00aeef;
  --c-cyan-2:       #3ccdf9;
  --c-cyan-glow:    rgba(0, 174, 239, 0.18);

  /* — Hersteller — */
  --c-mb:           #ffffff;
  --c-truck:        #3ccdf9;
  --c-smart:        #a8d36b;

  /* — Status — */
  --c-warn:         #ffb45a;
  --c-error:        #ff6b6b;
  --c-ok:           #62d39b;

  /* — Text — */
  --c-fg:           #f3f7fb;
  --c-fg-mute:      #aebccc;
  --c-fg-dim:       #6f86a0;
  --c-fg-faint:     rgba(243, 247, 251, 0.20);

  /* — Oberflächen — */
  --c-card:         rgba(14, 38, 52, 0.85);
  --c-card-border:  rgba(60, 205, 249, 0.22);
  --c-card-hi:      rgba(60, 205, 249, 0.40);

  /* — Maße (CI: Radius 10, Border 1, 85% Transparenz auf Cards) — */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-pill: 999px;
  --bw:   1px;

  /* — Verläufe — */
  --grad-accent:    linear-gradient(135deg, #00aeef 0%, #3ccdf9 100%);
  --grad-ink-diag:  linear-gradient(135deg, #0d1f2b 0%, #06121b 50%, #143043 100%);
  --grad-fade-up:   linear-gradient(180deg, rgba(10,22,32,0) 0%, rgba(10,22,32,0.95) 100%);

  /* — Schatten — */
  --shadow-card:    0 12px 40px -16px rgba(0, 0, 0, 0.5);
  --shadow-glow:    0 6px 24px -8px rgba(0, 174, 239, 0.7);
  --shadow-glow-lg: 0 14px 48px -16px rgba(0, 174, 239, 0.7);

  /* — Typo-Familien (lokale System-Stacks, keine Web-Fonts) — */
  --f-display: 'MB Corpo A Cond Title', 'MB Corpo A Title', 'MB Corpo A',
               system-ui, -apple-system, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --f-ui:      'MB Corpo S Text', 'MB Corpo S',
               system-ui, -apple-system, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --f-mono:    ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;

  /* — Spacing-Skala — */
  --s-1:  4px;
  --s-2:  8px;
  --s-3:  12px;
  --s-4:  16px;
  --s-5:  20px;
  --s-6:  24px;
  --s-7:  32px;
  --s-8:  40px;
  --s-9:  56px;
}


/* ════════════════════════════════════════════════════════════════
 * 02 · RESET & BASE
 * ════════════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  font-family: var(--f-ui);
  background: var(--c-ink-0);
  color: var(--c-fg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; padding: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

::selection { background: var(--c-cyan-1); color: #06141d; }

:focus-visible {
  outline: 2px solid var(--c-cyan-2);
  outline-offset: 3px;
  border-radius: 4px;
}

/* — Scrollbars (Cyan-Akzent, dezent) — */
* { scrollbar-width: thin; scrollbar-color: rgba(60, 205, 249, 0.3) transparent; }
*::-webkit-scrollbar         { width: 10px; height: 10px; }
*::-webkit-scrollbar-track   { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: rgba(60, 205, 249, 0.3);
  border-radius: 5px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
*::-webkit-scrollbar-thumb:hover { background-color: rgba(60, 205, 249, 0.55); }


/* ════════════════════════════════════════════════════════════════
 * 03 · HINTERGRÜNDE & DEKOR
 * ════════════════════════════════════════════════════════════════ */

/* Tech-Grid (groß) */
.bg-grid {
  background-image:
    linear-gradient(rgba(60, 205, 249, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(60, 205, 249, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
}
/* Tech-Grid (fein, für Sub-Pages) */
.bg-grid-fine {
  background-image:
    linear-gradient(rgba(60, 205, 249, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(60, 205, 249, 0.04) 1px, transparent 1px);
  background-size: 16px 16px;
}
/* Dunkler diagonaler Verlauf */
.bg-ink-diag { background: var(--grad-ink-diag); }
/* Stadion-Vibe: weiches Cyan-Glow auf dunklem Hintergrund */
.bg-stadium {
  background:
    radial-gradient(80% 60% at 50% 80%, rgba(0, 174, 239, 0.22) 0%, transparent 60%),
    radial-gradient(50% 40% at 20% 30%, rgba(60, 205, 249, 0.10) 0%, transparent 60%),
    linear-gradient(180deg, #0a1620 0%, #0d1f2b 50%, #06121b 100%);
}


/* ════════════════════════════════════════════════════════════════
 * 04 · MARKE
 * ════════════════════════════════════════════════════════════════ */

/* — VMB-Lockup — */
.lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-display);
}
.lockup-mark {
  width: 28px; height: 28px;
  border-radius: 6px;
  background: var(--grad-accent);
  display: grid; place-items: center;
  font-weight: 700;
  font-size: 13px;
  color: #06141d;
  letter-spacing: -0.04em;
}
.lockup-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.lockup-eyebrow {
  font-size: 11px;
  color: var(--c-fg-dim);
  letter-spacing: 0.26em;
  text-transform: uppercase;
  font-weight: 500;
}
.lockup-title {
  font-size: 14px;
  color: var(--c-fg);
  font-weight: 600;
  letter-spacing: -0.01em;
}
/* Größenvarianten */
.lockup--lg .lockup-mark    { width: 40px; height: 40px; font-size: 16px; }
.lockup--lg .lockup-eyebrow { font-size: 12px; }
.lockup--lg .lockup-title   { font-size: 17px; }
.lockup--sm .lockup-mark    { width: 22px; height: 22px; font-size: 11px; }
.lockup--sm .lockup-eyebrow { font-size: 10px; }
.lockup--sm .lockup-title   { font-size: 12px; }

/* — Live-Indikator — */
.live {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--c-fg-dim);
  letter-spacing: 0.1em;
}
.live-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-cyan-2);
  box-shadow: 0 0 0 4px var(--c-cyan-glow);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

/* — Hersteller-Reihe — */
.makers {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.maker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.maker-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
}
.maker-dot.mb    { background: var(--c-mb);    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5); }
.maker-dot.truck { background: var(--c-truck); box-shadow: 0 0 10px rgba(60, 205, 249, 0.5); }
.maker-dot.smart { background: var(--c-smart); box-shadow: 0 0 10px rgba(168, 211, 107, 0.5); }
.maker-name {
  font-size: 12px;
  color: var(--c-fg-mute);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* — Location — */
.location {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--c-fg-mute);
}
.location svg { color: var(--c-cyan-2); }


/* ════════════════════════════════════════════════════════════════
 * 05 · OBERFLÄCHEN
 * ════════════════════════════════════════════════════════════════ */
.card {
  background: var(--c-card);
  border: var(--bw) solid var(--c-card-border);
  border-radius: var(--r-md);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow: var(--shadow-card);
}
.card--tile {
  padding: 14px;
  background: rgba(13, 31, 43, 0.55);
}
.card--featured {
  border-color: var(--c-card-hi);
  box-shadow: 0 0 0 1px var(--c-card-hi), var(--shadow-glow);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  border: var(--bw) solid var(--c-card-border);
  background: rgba(13, 31, 43, 0.6);
  font-family: var(--f-ui);
  font-size: 12px;
  color: var(--c-fg-mute);
  letter-spacing: 0.02em;
}
.chip--sm { padding: 4px 10px; font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; }
.chip-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-fg-faint), transparent);
}
.divider--solid {
  height: 1px;
  background: var(--c-card-border);
}
.divider--vert {
  width: 1px;
  height: 100%;
  background: var(--c-fg-faint);
  flex-shrink: 0;
}

.dot-sep {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--c-fg-faint);
  flex-shrink: 0;
}


/* ════════════════════════════════════════════════════════════════
 * 06 · FORMULAR-ELEMENTE
 * ════════════════════════════════════════════════════════════════ */
.field-label {
  font-size: 11px;
  color: var(--c-fg-dim);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-weight: 500;
  display: block;
  margin-bottom: 6px;
}
.field-label--sm {
  font-size: 10px;
  letter-spacing: 0.20em;
  margin-bottom: 5px;
}

.field-wrap { position: relative; }

.input {
  width: 100%;
  height: 52px;
  background: rgba(10, 22, 32, 0.55);
  color: var(--c-fg);
  border: var(--bw) solid var(--c-card-border);
  border-radius: var(--r-md);
  padding: 0 16px;
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}
.input--password { padding-right: 48px; letter-spacing: 0.25em; }
.input--password[type="text"] { letter-spacing: 0; }
.input--sm { height: 40px; padding: 0 12px; font-size: 13px; }
.input::placeholder {
  color: var(--c-fg-dim);
  letter-spacing: 0;
}
.input:focus,
.input:focus-visible {
  border-color: var(--c-cyan-2);
  background: rgba(10, 22, 32, 0.75);
  box-shadow: 0 0 0 4px var(--c-cyan-glow);
  outline: none;
}
.input.is-error {
  border-color: var(--c-error);
  box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.18);
}

.input-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-fg-mute);
  padding: 6px;
  display: flex;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
.input-toggle:hover { color: var(--c-cyan-2); background: rgba(60, 205, 249, 0.08); }

/* — Checkbox — */
.check-row {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--c-fg-mute);
  cursor: pointer;
  user-select: none;
  position: relative;
}
.check-row input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.check-box {
  width: 18px; height: 18px;
  border-radius: 5px;
  border: var(--bw) solid var(--c-card-border);
  background: rgba(10, 22, 32, 0.5);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: background 0.15s, border-color 0.15s;
}
.check-row input:checked + .check-box {
  background: var(--grad-accent);
  border-color: transparent;
}
.check-row input:checked + .check-box::after {
  content: "";
  width: 10px; height: 5px;
  border-left: 2px solid #06141d;
  border-bottom: 2px solid #06141d;
  transform: rotate(-45deg) translate(1px, -1px);
}
.check-row input:focus-visible + .check-box {
  outline: 2px solid var(--c-cyan-2);
  outline-offset: 2px;
}


/* ════════════════════════════════════════════════════════════════
 * 07 · BUTTONS
 * ════════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 22px;
  border-radius: var(--r-md);
  font-family: var(--f-ui);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease,
              background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn--sm { height: 40px; padding: 0 16px; font-size: 13px; }
.btn--lg { height: 56px; padding: 0 28px; font-size: 15px; }
.btn--block { width: 100%; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 52px;
  padding: 0 22px;
  border-radius: var(--r-md);
  font-family: var(--f-ui);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
  cursor: pointer;
  background: var(--grad-accent);
  color: #06141d;
  border: none;
  box-shadow: var(--shadow-glow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary:hover  { transform: translateY(-1px); box-shadow: var(--shadow-glow-lg); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.btn.is-primary {
  background: var(--grad-accent);
  color: #06141d;
  box-shadow: var(--shadow-glow);
}
.btn.is-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-glow-lg); }

.btn-ghost,
.btn.is-ghost {
  background: transparent;
  color: var(--c-fg);
  border: var(--bw) solid var(--c-card-border);
}
.btn-ghost:hover,
.btn.is-ghost:hover {
  border-color: var(--c-cyan-2);
  color: var(--c-cyan-2);
  background: var(--c-cyan-glow);
}

.btn-icon {
  width: 36px; height: 36px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  color: var(--c-fg-mute);
  background: rgba(0, 174, 239, 0.10);
  border: var(--bw) solid var(--c-card-border);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-icon:hover {
  background: rgba(0, 174, 239, 0.18);
  color: var(--c-cyan-2);
  border-color: var(--c-card-hi);
}


/* ════════════════════════════════════════════════════════════════
 * 08 · COUNTDOWN
 * ════════════════════════════════════════════════════════════════ */
.countdown {
  display: inline-flex;
  gap: 14px;
  font-family: var(--f-display);
}
.countdown-cell {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.countdown-num {
  font-size: 34px;
  font-weight: 600;
  color: var(--c-fg);
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.countdown-lbl {
  font-family: var(--f-ui);
  font-size: 9px;
  color: var(--c-fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  margin-top: 6px;
}
.countdown--lg .countdown-num { font-size: 56px; }
.countdown--sm .countdown-num { font-size: 22px; }
.countdown--sm .countdown-lbl { font-size: 8px; letter-spacing: 0.2em; margin-top: 4px; }


/* ════════════════════════════════════════════════════════════════
 * 09 · ANIMATIONEN
 * ════════════════════════════════════════════════════════════════ */
@keyframes pulse {
  0%, 100% { opacity: 0.5; transform: scale(0.95); }
  50%      { opacity: 1.0; transform: scale(1.05); }
}
@keyframes sweep {
  0%   { transform: translateX(0);    opacity: 0; }
  20%  { opacity: 0.6; }
  80%  { opacity: 0.6; }
  100% { transform: translateX(120vw); opacity: 0; }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Reduzierte Bewegung respektieren */
@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;
  }
}


/* ════════════════════════════════════════════════════════════════
 * 10 · TYPO-UTILITIES
 * ════════════════════════════════════════════════════════════════ */
.t-display { font-family: var(--f-display); letter-spacing: -0.02em; }
.t-ui      { font-family: var(--f-ui); }
.t-mono    { font-family: var(--f-mono); letter-spacing: 0.02em; }
.t-num     { font-variant-numeric: tabular-nums; }

/* Eyebrow */
.eyebrow {
  font-family: var(--f-ui);
  font-size: 11px;
  color: var(--c-cyan-2);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-weight: 600;
}
.eyebrow--mute { color: var(--c-fg-dim); }
.eyebrow--mono { font-family: var(--f-mono); letter-spacing: 0.2em; }

/* Mute-Modifier */
.mute        { color: var(--c-fg-mute); }
.dim         { color: var(--c-fg-dim); }
.accent      { color: var(--c-cyan-2); }
.accent-grad {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Help-Block (Kontakt-Hinweise unter Formular) */
.help {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.help-label {
  font-size: 11px;
  color: var(--c-fg-dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
}
.help-mail {
  font-size: 13px;
  color: var(--c-cyan-2);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.help-mail:hover { text-decoration: underline; text-underline-offset: 3px; }
.help-phone {
  font-size: 12px;
  color: var(--c-cyan-2);
  display: inline-flex;
}

/* Visually-Hidden (Screenreader-only) */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


article.error { background:#ffdfdf; border:1px solid #9f0000; color:#9f0000; border-radius:var(--r-md); margin-bottom: 50px;  padding:15px 25px; }