:root {
  --bg: #e8e2d8;
  --glass-bg: rgba(255, 255, 255, 0.5);
  --glass-border: rgba(255, 255, 255, 0.35);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
  --accent: #1e2f6e;
  --text: #1a1a2e;
  --text-subtle: #8a8a9a;
  --danger: #b33a3a;
  --radius: 18px;
  --max-width: 640px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html, body {
  height: 100%;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

#app {
  min-height: 100dvh;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 16px 32px;
}

.screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 90dvh;
}

.logo {
  max-width: 160px;
  height: auto;
  margin-bottom: 28px;
  opacity: 0.85;
}

.loading-text {
  color: var(--text-subtle);
  font-size: 0.9rem;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.9; }
}

/* ── Header ── */
.dashboard-header {
  display: flex;
  flex-direction: column;
  margin-bottom: 12px;
  position: relative;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-logo-wrap {
  display: flex;
  justify-content: center;
  width: 100%;
}

.logo-small {
  width: 60%;
  max-width: 180px;
  height: auto;
  opacity: 0.8;
}

/* ── Sprachumschalter ── */
.lang-picker {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 4px 10px 4px 8px;
  box-shadow: var(--glass-shadow);
  cursor: pointer;
  z-index: 10;
}
.lang-picker svg { width: 16px; height: 16px; stroke-width: 1.5; color: var(--accent); opacity: 0.6; pointer-events: none; }
.lang-current { font-size: 0.7rem; font-weight: 600; color: var(--accent); opacity: 0.8; letter-spacing: 0.04em; pointer-events: none; }
.lang-dropdown {
  position: absolute; top: calc(100% + 4px); right: 0; min-width: 100%;
  background: rgba(255,255,255,0.95); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border); border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  overflow: hidden; z-index: 20;
}
.lang-option { padding: 8px 14px; font-size: 0.85rem; color: var(--text); cursor: pointer; white-space: nowrap; transition: background 0.12s; }
.lang-option:hover { background: rgba(30,47,110,0.08); }
.lang-option.active { background: rgba(30,47,110,0.12); color: var(--accent); font-weight: 500; }

.app-title {
  text-align: center;
  font-size: 1.7rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-top: 10px;
  margin-bottom: 4px;
  opacity: 0.7;
}

.room-badge {
  align-self: flex-end;
  margin-top: 6px;
  background: rgb(137, 159, 179);
  color: #fff;
  font-size: 1rem;
  font-weight: 500;
  padding: 5px 16px;
  border-radius: 20px;
}

/* ── Banner ── */
.warning-banner, .error-banner {
  width: 100%;
  border-radius: var(--radius);
  padding: 12px 18px;
  margin-bottom: 12px;
  font-size: 0.85rem;
  font-weight: 500;
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.warning-banner {
  background: rgba(255, 193, 7, 0.15);
  border: 1px solid rgba(255, 193, 7, 0.25);
  color: #7a6200;
}
.error-banner {
  background: rgba(179, 58, 58, 0.1);
  border: 1px solid rgba(179, 58, 58, 0.2);
  color: var(--danger);
}

/* ── Tile Grid ── */
.tile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(8px, 1.5vw, 12px);
}

.tile-grid + .tile-grid {
  margin-top: 14px;
}

.tile {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  justify-content: flex-start;
  gap: 8px;
  min-width: 0;
}

.tile:active {
  transform: scale(0.97);
}

.tile-blocked {
  opacity: 0.45;
  pointer-events: none;
}

/* ── Tile Icon ── */
.tile-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  opacity: 0.65;
  margin-bottom: 6px;
}

.tile-icon svg,
.tile-icon i {
  width: 100%;
  height: 100%;
}

.tile-icon svg {
  stroke-width: 1.5;
}

.tile-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-subtle);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.tile-status {
  font-size: 0.72rem;
  color: var(--text-subtle);
}

/* ── Action Row ── */
.tile-actions {
  display: flex;
  gap: clamp(6px, 2.5vw, 24px);
  align-items: center;
  margin-top: 6px;
}

.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-subtle);
  padding: 4px;
  transition: color 0.2s, filter 0.3s;
}

.icon-btn svg {
  width: 24px;
  height: 24px;
  stroke-width: 1.5;
}

.icon-btn:hover {
  color: var(--accent);
}

.icon-btn:active {
  transform: scale(0.85);
}

.icon-btn:disabled {
  cursor: not-allowed;
}

.icon-btn.glow {
  color: var(--accent);
  filter: drop-shadow(0 0 6px rgba(30, 47, 110, 0.35));
}

/* ── Flat action icons for shutters ── */
.icon-btn-flat {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-subtle);
  padding: 6px 8px;
  transition: color 0.25s, filter 0.3s, transform 0.15s;
}

.icon-btn-flat svg {
  width: 29px;
  height: 29px;
  stroke-width: 1.5;
}

.icon-btn-flat:hover {
  color: var(--accent);
}

.icon-btn-flat:active {
  transform: scale(0.85);
}

.icon-btn-flat:disabled {
  cursor: not-allowed;
}

.icon-btn-flat.glow {
  color: var(--accent);
  filter: drop-shadow(0 0 6px rgba(30, 47, 110, 0.35));
}

.icon-shade {
  padding: 6px;
}

.icon-shade svg {
  width: 32px;
  height: 32px;
}

.icon-shade.glow {
  color: #1e2f6e;
  filter: drop-shadow(0 0 10px rgba(30, 47, 110, 0.4));
}

/* ── Expired / Error ── */
.expired-screen h2, .error-screen h2 {
  margin-bottom: 8px;
  color: var(--accent);
  font-weight: 500;
}

.expired-screen p, .error-message {
  text-align: center;
  color: var(--text-subtle);
  margin-bottom: 24px;
  font-size: 0.9rem;
}

.scan-icon-wrap {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  box-shadow: var(--glass-shadow);
}

.scan-icon-wrap svg {
  width: 48px;
  height: 48px;
  stroke-width: 1.5;
  color: var(--accent);
  opacity: 0.7;
}

#qr-scanner {
  width: 100%;
  max-width: 300px;
}

.error-screen h2 {
  color: var(--danger);
}

.retry-btn {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 12px 32px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text);
  box-shadow: var(--glass-shadow);
  transition: background 0.2s;
}

.retry-btn:hover {
  background: rgba(255, 255, 255, 0.8);
}