/* ===========================================================================
   LINGMORPH SANDBOX — Übungs-Theme (Petrol / Teal)
   ---------------------------------------------------------------------------
   LingMorph Sandbox ist eine Unterseite von LingMorph und teilt dessen
   Designsprache (Topbar, Footer, Karten, Reveal-/Token-Animationen). Sie hebt
   sich bewusst durch die Markenfarbe Petrol (#0F766E) auf hellem Teal-Grund
   (#F0FDFA) ab, damit eine Lehrkraft beim Vorbeigehen sofort erkennt: hier wird
   geübt (nicht die Navy/Amber-Analyse-Seite). Die Wortart-Farben bleiben
   identisch zur Analyse-Seite, damit Schüler dieselbe Farbsprache wiedererkennen.

   Tablet-/iPad-first: große Tap-Flächen (≥ 48px), klare Aktiv-/Fokus-Zustände,
   touch-action gesetzt, sticky Aktionsleisten. Alle Klassen sind eigenständig.
   Die Token-Namen --sb-green* bleiben aus Kompatibilität erhalten, tragen aber
   nun die Petrol-/Teal-Werte der Marke.
   =========================================================================== */

.sb-theme {
  --sb-green: #0F766E;
  --sb-green-600: #0C6660;
  --sb-green-700: #0A564F;
  --sb-green-800: #08453F;
  --sb-green-900: #063830;
  --sb-green-tint: #F0FDFA;
  --sb-green-tint-2: #CCFBF1;
  --sb-green-tint-3: #99F6E4;
  --sb-teal-glow: rgba(15, 118, 110, 0.28);
  /*Akzent: warmes Bernstein (sparsam, von LingMorph übernommen);*/
  --sb-amber: #F59E0B;
  --sb-amber-light: #FCD34D;
  --sb-navy: #1A365D;
  --sb-navy-700: #142a49;
  --sb-ink: #0c2a27;
  --sb-slate: #334e4a;
  --sb-slate-2: #5b746f;
  --sb-bg: #F0FDFA;
  --sb-bg-2: #E6FBF6;
  --sb-surface: #ffffff;
  --sb-line: #cdeae4;
  --sb-line-strong: #a9d9d0;
  --sb-warn: #B45309;
  --sb-warn-bg: #FEF3C7;
  --sb-warn-line: #FCD34D;
  --sb-danger: #B91C1C;
  --sb-danger-bg: #FEE2E2;
  --sb-danger-line: #FCA5A5;
  --sb-ok: #0F766E;
  --sb-ok-bg: #CCFBF1;
  --sb-c-N: #1A365D;
  --sb-c-V: #DC2626;
  --sb-c-Art: #0E7490;
  --sb-c-Adj: #15803D;
  --sb-c-Adv: #B45309;
  --sb-c-Pn: #BE185D;
  --sb-c-Pr: #0F766E;
  --sb-c-K: #475569;
  --sb-c-Num: #1D4ED8;
  --sb-c-Part: #64748B;
  --sb-c-Vz: #EA580C;
  --sb-c-X: #94A3B8;
  --sb-c-Punct: #cbd5e1;
  --sb-radius: 1rem;
  --sb-radius-sm: 0.65rem;
  --sb-radius-lg: 1.5rem;
  --sb-shadow: 0 1px 2px rgba(6, 56, 48, 0.05), 0 10px 30px rgba(6, 56, 48, 0.07);
  --sb-shadow-lg: 0 18px 50px rgba(6, 56, 48, 0.18);
  --sb-shadow-teal: 0 10px 30px rgba(15, 118, 110, 0.28);
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background-color: var(--sb-bg);
  background-image: radial-gradient(900px 500px at 92% -8%, rgba(15, 118, 110, 0.08), transparent 60%), radial-gradient(700px 460px at -6% 8%, rgba(45, 212, 191, 0.10), transparent 55%);
  background-attachment: fixed;
  color: var(--sb-slate);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.sb-theme ::selection {
  background: var(--sb-green-tint-2);
  color: var(--sb-green-900);
}

/* ===========================================================================
   Geteilte Animationen (aus der LingMorph-Analyse-Seite übernommen)
   =========================================================================== */

@keyframes sb-spin {
  to {
    transform: rotate(360deg);
  }
}

.sb-spin-icon {
  display: inline-block;
  animation: sb-spin 1s linear infinite;
}

@keyframes sb-marker-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

@keyframes sb-moved {
  0% {
    background-color: rgba(15, 118, 110, 0.25);
    border-color: var(--sb-green);
  }
  100% {
    background-color: #fff;
  }
}

.sb-just-moved {
  animation: sb-moved 0.6s ease;
}

@keyframes sb-floaty {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes sb-pop-in {
  0% {
    opacity: 0;
    transform: translateY(14px) scale(0.96);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes sb-shake {
  0%, 100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-6px);
  }
  40% {
    transform: translateX(6px);
  }
  60% {
    transform: translateX(-4px);
  }
  80% {
    transform: translateX(4px);
  }
}

.sb-shake {
  animation: sb-shake 0.4s ease;
}

@keyframes sb-ring-pop {
  0% {
    transform: scale(0.6);
    opacity: 0;
  }
  60% {
    transform: scale(1.08);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Scroll-Reveal (identisch zur Hauptseite: opacity + translateY) */

.sb-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.sb-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .sb-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --- Kopfleiste (Petrol, sticky — wie LingMorph) ------------------------- */

.sb-topbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: var(--sb-green);
  color: #fff;
  box-shadow: 0 2px 18px rgba(6, 56, 48, 0.22);
  border-bottom: 2px solid rgba(204, 251, 241, 0.25);
}

.sb-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.25rem;
  max-width: 1180px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.sb-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
  text-decoration: none;
  transition: transform 0.18s ease;
}

.sb-brand:hover {
  transform: translateY(-1px);
}

.sb-brand-mark {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.6rem;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.sb-brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.sb-brand-name {
  font-size: 1.2rem;
  line-height: 1.05;
}

.sb-brand-name .sb-accent {
  color: var(--sb-green-tint-3);
  font-weight: 800;
}

.sb-brand-sub {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.82;
}

.sb-topnav {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.sb-topnav a {
  color: #eafaf3;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.93rem;
  padding: 0.5rem 0.85rem;
  border-radius: 0.55rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: background 0.15s ease;
}

.sb-topnav a:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.sb-topnav a.is-active {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.sb-topnav a.sb-nav-analyse {
  background: var(--sb-navy);
  color: #fff;
}

.sb-topnav a.sb-nav-analyse:hover {
  background: var(--sb-navy-700);
}

/* --- Grundlayout ---------------------------------------------------------- */

.sb-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 5rem;
}

.sb-page-head {
  margin: 0.5rem 0 1.5rem;
}

.sb-eyebrow {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sb-green-700);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.sb-h1 {
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--sb-ink);
  margin: 0.4rem 0 0.5rem;
}

.sb-lead {
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--sb-slate-2);
  max-width: 60ch;
}

/* --- Karten --------------------------------------------------------------- */

.sb-card {
  background: var(--sb-surface);
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius);
  box-shadow: var(--sb-shadow);
  padding: 1.25rem;
}

.sb-card + .sb-card {
  margin-top: 1.1rem;
}

.sb-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.9rem;
}

.sb-card-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--sb-ink);
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.sb-card-title i {
  color: var(--sb-green-700);
}

/* --- Eingabe -------------------------------------------------------------- */

.sb-input-row {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
  flex-wrap: wrap;
}

.sb-textarea, .sb-input {
  flex: 1 1 320px;
  min-height: 3.4rem;
  font-size: 1.05rem;
  line-height: 1.5;
  padding: 0.85rem 1rem;
  border: 2px solid var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  background: #fff;
  color: var(--sb-ink);
  resize: vertical;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.sb-textarea:focus, .sb-input:focus {
  outline: none;
  border-color: var(--sb-green);
  box-shadow: 0 0 0 4px var(--sb-green-tint);
}

/* --- Buttons (große Tap-Flächen) ----------------------------------------- */

.sb-btn {
  -webkit-appearance: none;
  appearance: none;
  border: 2px solid transparent;
  border-radius: var(--sb-radius-sm);
  font-weight: 700;
  font-size: 1rem;
  font-family: inherit;
  padding: 0.8rem 1.3rem;
  min-height: 3.1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: transform 0.08s ease, background 0.15s ease, box-shadow 0.15s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
  line-height: 1;
}

.sb-btn:active {
  transform: translateY(1px) scale(0.99);
}

.sb-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.sb-btn-primary {
  background: var(--sb-green);
  color: #fff;
  box-shadow: 0 4px 14px rgba(15, 157, 108, 0.32);
}

.sb-btn-primary:hover:not(:disabled) {
  background: var(--sb-green-600);
}

.sb-btn-navy {
  background: var(--sb-navy);
  color: #fff;
}

.sb-btn-navy:hover:not(:disabled) {
  background: var(--sb-navy-700);
}

.sb-btn-outline {
  background: #fff;
  color: var(--sb-green-700);
  border-color: var(--sb-line-strong);
}

.sb-btn-outline:hover:not(:disabled) {
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
}

.sb-btn-ghost {
  background: transparent;
  color: var(--sb-slate-2);
  min-height: 2.5rem;
  padding: 0.5rem 0.8rem;
}

.sb-btn-ghost:hover:not(:disabled) {
  background: var(--sb-green-tint);
  color: var(--sb-green-800);
}

.sb-btn-danger {
  background: #fff;
  color: var(--sb-danger);
  border-color: var(--sb-danger-line);
}

.sb-btn-danger:hover:not(:disabled) {
  background: var(--sb-danger-bg);
}

.sb-btn-sm {
  min-height: 2.4rem;
  padding: 0.45rem 0.8rem;
  font-size: 0.9rem;
}

.sb-btn-block {
  width: 100%;
}

/* --- Schalter (Hybrid/Manuell) ------------------------------------------- */

.sb-toggle-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-top: 0.9rem;
  padding: 0.75rem 0.9rem;
  background: var(--sb-green-tint);
  border: 1px solid var(--sb-green-tint-2);
  border-radius: var(--sb-radius-sm);
}

.sb-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  cursor: pointer;
  user-select: none;
  font-weight: 700;
  color: var(--sb-green-900);
}

.sb-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.sb-switch-track {
  width: 3.4rem;
  height: 1.9rem;
  border-radius: 999px;
  background: var(--sb-line-strong);
  transition: background 0.18s ease;
  flex: none;
  position: relative;
}

.sb-switch-track::after {
  content: "";
  position: absolute;
  top: 0.2rem;
  left: 0.2rem;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  transition: transform 0.18s ease;
}

.sb-switch input:checked + .sb-switch-track {
  background: var(--sb-green);
}

.sb-switch input:checked + .sb-switch-track::after {
  transform: translateX(1.5rem);
}

.sb-switch input:focus-visible + .sb-switch-track {
  box-shadow: 0 0 0 4px var(--sb-green-tint-2);
}

.sb-toggle-desc {
  font-size: 0.9rem;
  color: var(--sb-slate-2);
  line-height: 1.45;
  flex: 1 1 240px;
}

/* --- Ebenen-Auswahl (Chips) ---------------------------------------------- */

.sb-layerpick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.9rem;
}

.sb-layerpick label {
  cursor: pointer;
}

.sb-layerpick input {
  position: absolute;
  opacity: 0;
}

.sb-layerpill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  border: 2px solid var(--sb-line-strong);
  background: #fff;
  color: var(--sb-slate);
  font-weight: 700;
  font-size: 0.92rem;
  min-height: 2.8rem;
  transition: all 0.15s ease;
}

.sb-layerpick input:checked + .sb-layerpill {
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
  color: var(--sb-green-800);
}

.sb-layerpick input:focus-visible + .sb-layerpill {
  box-shadow: 0 0 0 4px var(--sb-green-tint-2);
}

/* --- Hinweise / Konfidenz-Warnungen -------------------------------------- */

.sb-notice {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.85rem 1rem;
  border-radius: var(--sb-radius-sm);
  border: 1px solid;
  font-size: 0.93rem;
  line-height: 1.5;
}

.sb-notice i {
  font-size: 1.15rem;
  flex: none;
  margin-top: 0.05rem;
}

.sb-notice-info {
  background: var(--sb-green-tint);
  border-color: var(--sb-green-tint-2);
  color: var(--sb-green-900);
}

.sb-notice-info i {
  color: var(--sb-green-700);
}

.sb-notice-warn {
  background: var(--sb-warn-bg);
  border-color: var(--sb-warn-line);
  color: #7c2d12;
}

.sb-notice-warn i {
  color: var(--sb-warn);
}

.sb-notice-danger {
  background: var(--sb-danger-bg);
  border-color: var(--sb-danger-line);
  color: #7f1d1d;
}

.sb-notice-danger i {
  color: var(--sb-danger);
}

.sb-notice-strong {
  border-width: 2px;
  box-shadow: 0 6px 20px rgba(185, 28, 28, 0.14);
}

.sb-notice-title {
  font-weight: 800;
  display: block;
  margin-bottom: 0.15rem;
}

/* Achtung-Marker (klein, bis zum Schüler durchgereicht) */

.sb-attention {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--sb-warn);
  background: var(--sb-warn-bg);
  border: 1px solid var(--sb-warn-line);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  white-space: nowrap;
}

/* Konfidenz-Badge */

.sb-confidence {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 800;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  white-space: nowrap;
}

.sb-confidence-high {
  background: var(--sb-ok-bg);
  color: var(--sb-green-800);
}

.sb-confidence-low {
  background: var(--sb-warn-bg);
  color: var(--sb-warn);
}

/* --- Puzzle-Bühne --------------------------------------------------------- */

.sb-stage {
  margin-top: 1.25rem;
}

.sb-step {
  background: var(--sb-surface);
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius);
  box-shadow: var(--sb-shadow);
  margin-bottom: 1.1rem;
  overflow: hidden;
}

.sb-step-head {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.15rem;
  background: linear-gradient(180deg, #fff, var(--sb-green-tint));
  border-bottom: 1px solid var(--sb-line);
  flex-wrap: wrap;
}

.sb-step-num {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--sb-green);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1rem;
  flex: none;
}

.sb-step-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--sb-ink);
  margin: 0;
}

.sb-step-sub {
  font-size: 0.86rem;
  color: var(--sb-slate-2);
  width: 100%;
  margin-top: 0.1rem;
}

.sb-step-status {
  margin-left: auto;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--sb-slate-2);
}

.sb-step-body {
  padding: 1.15rem;
}

/* --- Wort-Karten / Slots -------------------------------------------------- */

.sb-words {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.sb-word {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.4rem;
  min-width: 4.5rem;
}

.sb-word-label {
  text-align: center;
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--sb-ink);
  padding: 0.35rem 0.7rem;
  background: #fff;
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius-sm);
  white-space: nowrap;
}

.sb-word.is-punct .sb-word-label {
  color: var(--sb-slate-2);
  background: var(--sb-bg);
}

/* Slot = Drop-/Tap-Ziel unter dem Wort */

.sb-slot {
  min-height: 2.9rem;
  min-width: 4.5rem;
  border: 2px dashed var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  background: var(--sb-bg);
  display: grid;
  place-items: center;
  padding: 0.3rem 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--sb-slate-2);
  cursor: pointer;
  transition: all 0.13s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  text-align: center;
}

.sb-slot:hover {
  border-color: var(--sb-green);
}

.sb-slot.is-target {
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
  box-shadow: 0 0 0 4px var(--sb-green-tint-2);
}

.sb-slot.is-filled {
  border-style: solid;
  border-color: var(--sb-green-600);
  background: #fff;
  color: var(--sb-ink);
}

.sb-slot.is-correct {
  border-style: solid;
  border-color: var(--sb-ok);
  background: var(--sb-ok-bg);
  color: var(--sb-green-900);
}

.sb-slot.is-wrong {
  border-style: solid;
  border-color: var(--sb-danger-line);
  background: var(--sb-danger-bg);
  color: #7f1d1d;
}

.sb-slot-empty-hint {
  opacity: 0.6;
  font-size: 1.3rem;
  line-height: 1;
}

/* --- Chip-Palette --------------------------------------------------------- */

.sb-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 0.95rem;
  background: var(--sb-bg);
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius-sm);
  margin-bottom: 1.1rem;
  position: sticky;
  top: 0.5rem;
  z-index: 5;
}

.sb-palette-label {
  width: 100%;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--sb-slate-2);
  margin-bottom: 0.1rem;
}

.sb-chip {
  --chip-color: var(--sb-slate);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.95rem;
  min-height: 2.8rem;
  border-radius: 999px;
  border: 2px solid var(--chip-color);
  background: #fff;
  color: var(--chip-color);
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  user-select: none;
  transition: transform 0.08s ease, box-shadow 0.13s ease, background 0.13s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.sb-chip:active {
  transform: scale(0.96);
}

.sb-chip.is-active {
  background: var(--chip-color);
  color: #fff;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--chip-color) 22%, transparent);
}

.sb-chip.is-depleted {
  opacity: 0.32;
  pointer-events: none;
}

.sb-chip-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--chip-color);
  flex: none;
}

.sb-chip.is-active .sb-chip-dot {
  background: #fff;
}

/* Eine in einen Slot gesetzte Chip-Anzeige */

.sb-slot-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 800;
  color: var(--chip-color, var(--sb-ink));
}

/* --- Satzglied-Zonen ------------------------------------------------------ */

.sb-zones {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
}

.sb-zone {
  border: 2px dashed var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  background: var(--sb-bg);
  padding: 0.8rem;
  min-height: 4.2rem;
  transition: all 0.13s ease;
}

.sb-zone.is-target {
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
}

.sb-zone-title {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--sb-slate-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.sb-zone-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  min-height: 2.4rem;
}

/* --- Feldermodell --------------------------------------------------------- */

.sb-fields {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.6rem;
}

.sb-field {
  border: 2px dashed var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  background: var(--sb-bg);
  min-height: 6rem;
  padding: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: all 0.13s ease;
}

.sb-field.is-target {
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
}

.sb-field-title {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--sb-green-800);
  text-align: center;
}

.sb-field-sub {
  font-size: 0.64rem;
  font-weight: 600;
  color: var(--sb-slate-2);
  text-align: center;
  margin-top: -0.3rem;
}

.sb-field-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: center;
}

/* Bewegliche Wort-Token (für Satzglied-/Felder-Zuordnung) */

.sb-movable {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.5rem 0.8rem;
  min-height: 2.6rem;
  border-radius: var(--sb-radius-sm);
  border: 2px solid var(--sb-line-strong);
  background: #fff;
  color: var(--sb-ink);
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.08s ease, box-shadow 0.13s ease;
}

.sb-movable:active {
  transform: scale(0.96);
}

.sb-movable.is-active {
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
  box-shadow: 0 0 0 4px var(--sb-green-tint-2);
}

.sb-movable.is-correct {
  border-color: var(--sb-ok);
  background: var(--sb-ok-bg);
}

.sb-movable.is-wrong {
  border-color: var(--sb-danger-line);
  background: var(--sb-danger-bg);
}

.sb-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.9rem;
  background: var(--sb-bg);
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius-sm);
  margin-bottom: 1rem;
  min-height: 3.5rem;
}

.sb-bank.is-target {
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
}

.sb-bank-label {
  width: 100%;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--sb-slate-2);
}

/* --- Aktionsleiste / Auswertung ------------------------------------------ */

.sb-actionbar {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 1rem;
}

.sb-result {
  margin-top: 1rem;
  padding: 1rem 1.15rem;
  border-radius: var(--sb-radius-sm);
  border: 1px solid var(--sb-line);
  background: #fff;
}

.sb-score {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--sb-ink);
}

.sb-score-ring {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  color: #fff;
  flex: none;
  background: var(--sb-green);
}

.sb-score-ring.is-mid {
  background: var(--sb-warn);
}

.sb-score-ring.is-low {
  background: var(--sb-danger);
}

.sb-feedback-list {
  margin: 0.85rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.sb-feedback-list li {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  font-size: 0.92rem;
  line-height: 1.45;
  padding: 0.55rem 0.7rem;
  border-radius: 0.5rem;
  background: var(--sb-bg);
}

.sb-feedback-list li i {
  flex: none;
  margin-top: 0.1rem;
}

.sb-fb-ok i {
  color: var(--sb-ok);
}

.sb-fb-no {
  background: var(--sb-danger-bg) !important;
}

.sb-fb-no i {
  color: var(--sb-danger);
}

.sb-fb-term {
  font-weight: 800;
  color: var(--sb-ink);
}

/* --- Sätze-Liste (Lehrkraft + Schüler) ----------------------------------- */

.sb-sentence-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.sb-sentence-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius-sm);
  background: #fff;
  transition: border-color 0.13s ease, box-shadow 0.13s ease;
}

.sb-sentence-item.is-selectable {
  cursor: pointer;
}

.sb-sentence-item.is-selectable:hover {
  border-color: var(--sb-green);
  box-shadow: var(--sb-shadow);
}

.sb-sentence-item.is-active {
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
}

.sb-sentence-item.is-done {
  opacity: 0.72;
}

.sb-sentence-num {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--sb-green-tint-2);
  color: var(--sb-green-800);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.9rem;
  flex: none;
}

.sb-sentence-text {
  flex: 1 1 auto;
  font-weight: 600;
  color: var(--sb-ink);
  line-height: 1.4;
}

.sb-sentence-text.is-hidden-text {
  color: var(--sb-slate-2);
  font-style: italic;
  font-weight: 600;
}

.sb-sentence-actions {
  display: inline-flex;
  gap: 0.35rem;
  flex: none;
}

/* --- Tabs (Lehrkraft / Schüler) ------------------------------------------ */

.sb-tabs {
  display: inline-flex;
  gap: 0.3rem;
  padding: 0.35rem;
  background: var(--sb-green-tint);
  border-radius: 999px;
  margin-bottom: 1.4rem;
  flex-wrap: wrap;
}

.sb-tab {
  border: none;
  background: transparent;
  font-weight: 800;
  font-size: 0.98rem;
  color: var(--sb-green-800);
  padding: 0.7rem 1.3rem;
  min-height: 2.9rem;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.15s ease;
  touch-action: manipulation;
}

.sb-tab.is-active {
  background: var(--sb-green);
  color: #fff;
  box-shadow: 0 4px 14px rgba(15, 157, 108, 0.3);
}

.sb-panel {
  display: none;
}

.sb-panel.is-active {
  display: block;
}

/* --- Aufgaben-Auswahl (Lehrkraft) ---------------------------------------- */

.sb-taskgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.7rem;
}

.sb-taskcard {
  position: relative;
  border: 2px solid var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  padding: 0.95rem;
  cursor: pointer;
  background: #fff;
  transition: all 0.15s ease;
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.sb-taskcard input {
  position: absolute;
  opacity: 0;
}

.sb-taskcard-ic {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.6rem;
  background: var(--sb-green-tint);
  color: var(--sb-green-700);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  flex: none;
}

.sb-taskcard-title {
  font-weight: 800;
  color: var(--sb-ink);
  font-size: 0.98rem;
}

.sb-taskcard-desc {
  font-size: 0.82rem;
  color: var(--sb-slate-2);
  line-height: 1.4;
  margin-top: 0.15rem;
}

.sb-taskcard input:checked ~ .sb-taskcard-check, .sb-taskcard.is-checked {
  border-color: var(--sb-green);
}

.sb-taskcard input:checked + .sb-taskcard-ic {
  background: var(--sb-green);
  color: #fff;
}

.sb-taskcard-check {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  border: 2px solid var(--sb-line-strong);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 0.85rem;
}

.sb-taskcard input:checked ~ .sb-taskcard-check {
  background: var(--sb-green);
  border-color: var(--sb-green);
}

/* --- PIN / QR ------------------------------------------------------------- */

.sb-publish {
  text-align: center;
  padding: 1.5rem;
  background: linear-gradient(180deg, var(--sb-green-tint), #fff);
  border: 1px solid var(--sb-green-tint-2);
  border-radius: var(--sb-radius);
}

.sb-pin-display {
  font-size: clamp(2.4rem, 9vw, 3.6rem);
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--sb-green-800);
  font-variant-numeric: tabular-nums;
  margin: 0.4rem 0;
}

.sb-qr {
  display: inline-block;
  padding: 0.9rem;
  background: #fff;
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius-sm);
  box-shadow: var(--sb-shadow);
  margin: 0.6rem 0;
}

.sb-qr canvas, .sb-qr img {
  display: block;
}

.sb-pin-input {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.4em;
  text-align: center;
  font-variant-numeric: tabular-nums;
  max-width: 12ch;
  padding-left: 0.4em;
}

.sb-join {
  max-width: 30rem;
  margin: 0 auto;
  text-align: center;
}

/* --- Pflicht-Bestätigung (Low Confidence) -------------------------------- */

.sb-confirm {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  margin-top: 0.7rem;
  padding: 0.7rem 0.85rem;
  background: #fff;
  border: 2px solid var(--sb-danger-line);
  border-radius: var(--sb-radius-sm);
}

.sb-confirm input {
  width: 1.4rem;
  height: 1.4rem;
  margin-top: 0.1rem;
  flex: none;
  accent-color: var(--sb-danger);
  cursor: pointer;
}

.sb-confirm label {
  font-size: 0.9rem;
  line-height: 1.45;
  color: #7f1d1d;
  font-weight: 600;
  cursor: pointer;
}

/* --- Hilfs-Layout --------------------------------------------------------- */

.sb-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
}

.sb-muted {
  color: var(--sb-slate-2);
}

.sb-mt {
  margin-top: 1rem;
}

.sb-hidden {
  display: none !important;
}

.sb-spinner {
  width: 1.2rem;
  height: 1.2rem;
  border: 3px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: sb-spin 0.7s linear infinite;
  display: inline-block;
}

@keyframes sb-spin {
  to {
    transform: rotate(360deg);
  }
}

.sb-empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--sb-slate-2);
}

.sb-empty i {
  font-size: 2.4rem;
  color: var(--sb-line-strong);
  display: block;
  margin-bottom: 0.6rem;
}

/* --- Responsive (Tablet-/Desktop-Erweiterung) ---------------------------- */

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

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

@media (min-width: 992px) {
  .sb-shell {
    padding-top: 2rem;
  }
}

/* Kleine Telefone: Feldermodell scrollbar statt gequetscht */

@media (max-width: 560px) {
  .sb-fields {
    grid-template-columns: repeat(5, minmax(5.2rem, 1fr));
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 0.4rem;
  }
}

/* Reduzierte Bewegung respektieren */

@media (prefers-reduced-motion: reduce) {
  .sb-theme * {
    transition: none !important;
    animation: none !important;
  }
}

/* =========================================================================
   PUZZLE-PLAYER (sandbox-core.js) — alle interaktiven Übungselemente
   ========================================================================= */

/* --- Schritt-Tabs --------------------------------------------------------- */

.sb-step-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
}

.sb-step-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1.5px solid var(--sb-line-strong);
  background: #fff;
  color: var(--sb-slate);
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: all 0.13s ease;
}

.sb-step-tab:hover {
  border-color: var(--sb-green);
}

.sb-step-tab.is-active {
  background: var(--sb-green);
  border-color: var(--sb-green);
  color: #fff;
  box-shadow: 0 4px 14px rgba(15, 157, 108, 0.3);
}

.sb-step-tab.is-done:not(.is-active) {
  border-color: var(--sb-ok);
  color: var(--sb-green-700);
  background: var(--sb-ok-bg);
}

.sb-step-tab-num {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.08);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.82rem;
  flex: none;
}

.sb-step-tab.is-active .sb-step-tab-num {
  background: rgba(255, 255, 255, 0.25);
}

.sb-step-tab-name i {
  margin-right: 0.15rem;
}

/* --- Anleitung ------------------------------------------------------------ */

.sb-instruct {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  background: linear-gradient(180deg, #fff, var(--sb-green-tint));
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius);
  padding: 1rem 1.15rem;
  margin-bottom: 0.9rem;
}

.sb-instruct-icon {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 0.7rem;
  background: var(--sb-green);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  flex: none;
}

.sb-instruct-title {
  font-weight: 800;
  color: var(--sb-ink);
  font-size: 1.05rem;
}

.sb-instruct-text {
  color: var(--sb-slate);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-top: 0.15rem;
}

/* --- Palette: Wrapper für Chips ------------------------------------------ */

.sb-palette {
  flex-direction: column;
  align-items: stretch;
}

.sb-palette-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.sb-chip.is-active {
  background: var(--chip-color);
  color: #fff;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.16);
  transform: translateY(-1px);
}

.sb-chip-text {
  white-space: nowrap;
}

.sb-chip-sub {
  font-weight: 600;
  opacity: 0.72;
  font-size: 0.82em;
}

.sb-chip-eraser {
  --chip-color: var(--sb-slate-2);
}

.sb-chip-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--chip-color);
  flex: none;
}

.sb-chip.is-active .sb-chip-dot {
  background: #fff;
}

/* --- Wort-Slots (Wortarten / Kasus) -------------------------------------- */

.sb-slot {
  flex-direction: column;
  gap: 0.3rem;
  min-height: 3.4rem;
  padding: 0.5rem 0.7rem;
}

.sb-slot-word {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--sb-ink);
  white-space: nowrap;
}

.sb-slot-meta {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--sb-slate-2);
}

.sb-slot-chip {
  color: #fff;
  font-weight: 800;
  font-size: 0.8rem;
  padding: 0.18rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}

.sb-slot-correct {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--sb-green-800);
  margin-top: 0.1rem;
}

.sb-slot.is-wrong .sb-slot-correct {
  color: #7f1d1d;
}

/* --- Satzglieder ---------------------------------------------------------- */

.sb-chunks {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.sb-chunk-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sb-chunk-grouplabel {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--sb-slate-2);
}

.sb-chunk-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.sb-chunk {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  min-height: 3.4rem;
  padding: 0.6rem 0.9rem;
  border: 2px dashed var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  background: var(--sb-bg);
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: all 0.13s ease;
}

.sb-chunk:hover {
  border-color: var(--sb-green);
}

.sb-chunk.is-filled {
  border-style: solid;
  border-color: var(--sb-green-600);
  background: #fff;
}

.sb-chunk.is-correct {
  border-style: solid;
  border-color: var(--sb-ok);
  background: var(--sb-ok-bg);
}

.sb-chunk.is-wrong {
  border-style: solid;
  border-color: var(--sb-danger-line);
  background: var(--sb-danger-bg);
}

.sb-chunk-text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--sb-ink);
}

.sb-chunk-badge {
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  background: var(--sb-navy);
  color: #fff;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
}

.sb-chunk-chip {
  color: #fff;
  font-weight: 800;
  font-size: 0.82rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
}

/* --- Feldermodell --------------------------------------------------------- */

.sb-felder-wrap {
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}

.sb-felder-clause {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.sb-bank-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  min-height: 2.6rem;
}

.sb-bank-empty {
  color: var(--sb-green-700);
  font-weight: 700;
  font-size: 0.9rem;
  align-self: center;
}

.sb-movable {
  padding: 0.55rem 0.85rem;
  border: 2px solid var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  background: #fff;
  font-weight: 700;
  font-size: 1rem;
  color: var(--sb-ink);
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: all 0.1s ease;
}

.sb-movable:active {
  transform: scale(0.95);
}

.sb-movable.is-correct {
  border-color: var(--sb-ok);
  background: var(--sb-ok-bg);
}

.sb-movable.is-wrong {
  border-color: var(--sb-danger-line);
  background: var(--sb-danger-bg);
}

.sb-field-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-content: flex-start;
  min-height: 3rem;
}

/* --- Aktionsleiste / Ergebnis -------------------------------------------- */

.sb-actionbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--sb-line);
}

.sb-flex-spacer {
  flex: 1 1 auto;
}

.sb-progress-pill {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--sb-slate-2);
  background: var(--sb-bg);
  border: 1px solid var(--sb-line);
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
}

.sb-result {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
  margin-top: 0.4rem;
  flex-wrap: wrap;
}

.sb-score {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.sb-score-text {
  font-weight: 700;
  color: var(--sb-slate);
}

.sb-result-next {
  margin-left: auto;
}

.sb-done-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 800;
  color: #fff;
  background: var(--sb-green);
  padding: 0.55rem 1rem;
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(15, 157, 108, 0.3);
}

/* --- Toast ---------------------------------------------------------------- */

.sb-toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%) translateY(1rem);
  background: var(--sb-navy);
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 0.7rem 1.1rem;
  border-radius: 0.7rem;
  box-shadow: var(--sb-shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 60;
  max-width: 90vw;
  text-align: center;
}

.sb-toast.is-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* --- Tablet: größere Tap-Ziele ------------------------------------------- */

@media (min-width: 768px) and (max-width: 1180px) {
  .sb-chip {
    min-height: 3.1rem;
    font-size: 1rem;
  }
}

@media (min-width: 768px) and (max-width: 1180px) {
  .sb-slot {
    min-height: 3.8rem;
  }
}

@media (min-width: 768px) and (max-width: 1180px) {
  .sb-movable {
    font-size: 1.05rem;
    padding: 0.65rem 1rem;
  }
}

/* =========================================================================
   SANDBOX FOR CLASSROOM (sandbox-classroom.html / .js)
   ========================================================================= */

.sb-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.6rem 1.25rem 4rem;
}

.sb-main-wide {
  max-width: 1180px;
}

.sb-footer {
  border-top: 1px solid var(--sb-line);
  margin-top: 2rem;
}

.sb-footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
  font-weight: 700;
  color: var(--sb-slate);
  font-size: 0.9rem;
}

.sb-view {
  animation: sb-fade-in 0.25s ease;
}

@keyframes sb-fade-in {
  from {
    opacity: 1;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.sb-loading {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  justify-content: center;
  padding: 2.5rem 1rem;
  color: var(--sb-green-700);
  font-weight: 700;
}

/* --- Hero / Titel --------------------------------------------------------- */

.sb-hero {
  text-align: center;
  max-width: 62ch;
  margin: 0.5rem auto 2rem;
}

.sb-kicker {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sb-green-700);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.sb-title {
  font-size: clamp(1.7rem, 4.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--sb-ink);
  margin: 0.5rem 0 0.6rem;
  text-wrap: balance;
}

.sb-hero .sb-lead {
  margin: 0 auto;
}

/* --- Einstieg: Wahlkarten ------------------------------------------------- */

.sb-choice-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  max-width: 880px;
  margin: 0 auto;
}

@media (min-width: 820px) {
  .sb-choice-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.sb-choice-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.6rem;
  text-align: left;
  background: var(--sb-surface);
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius);
  padding: 1.6rem;
  box-shadow: var(--sb-shadow);
}

button.sb-choice-card {
  cursor: pointer;
  transition: all 0.15s ease;
  font: inherit;
  width: 100%;
}

button.sb-choice-card:hover {
  border-color: var(--sb-green);
  transform: translateY(-2px);
  box-shadow: var(--sb-shadow-lg);
}

.sb-choice-teacher {
  background: linear-gradient(180deg, #fff, var(--sb-green-tint));
}

.sb-choice-icon {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 0.9rem;
  background: var(--sb-green);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
}

.sb-choice-student .sb-choice-icon {
  background: var(--sb-navy);
}

.sb-choice-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--sb-ink);
}

.sb-choice-desc {
  color: var(--sb-slate);
  font-size: 0.96rem;
  line-height: 1.5;
}

.sb-choice-cta {
  margin-top: 0.3rem;
  font-weight: 800;
  color: var(--sb-green-700);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.sb-join-form {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  width: 100%;
  margin-top: 0.4rem;
}

.sb-fineprint {
  text-align: center;
  color: var(--sb-slate-2);
  font-size: 0.88rem;
  font-weight: 600;
  margin-top: 1.6rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  justify-content: center;
}

/* --- Zurück-Button -------------------------------------------------------- */

.sb-back {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: none;
  border: none;
  color: var(--sb-green-700);
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  padding: 0.5rem 0;
  margin-bottom: 1rem;
  touch-action: manipulation;
}

.sb-back:hover {
  color: var(--sb-green-800);
}

/* --- Builder-Layout ------------------------------------------------------- */

.sb-builder-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}

@media (min-width: 980px) {
  .sb-builder-grid {
    grid-template-columns: 1.6fr 1fr;
    align-items: start;
  }
}

.sb-builder-main {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.sb-card-sticky {
  position: sticky;
  top: 1rem;
}

.sb-card-sub {
  color: var(--sb-slate);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0.2rem 0 1rem;
}

.sb-card-head-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.8rem;
  flex-wrap: wrap;
}

.sb-label {
  display: block;
  font-weight: 800;
  color: var(--sb-ink);
  font-size: 0.92rem;
  margin: 0.9rem 0 0.4rem;
}

.sb-text-input {
  width: 100%;
  border: 2px solid var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  padding: 0.8rem 0.95rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--sb-ink);
  background: #fff;
  transition: border-color 0.13s ease, box-shadow 0.13s ease;
}

.sb-text-input:focus {
  outline: none;
  border-color: var(--sb-green);
  box-shadow: 0 0 0 4px var(--sb-green-tint-2);
}

.sb-add-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.sb-add-row .sb-text-input {
  flex: 1 1 14rem;
}

.sb-mt {
  margin-top: 1rem;
}

.sb-mt-sm {
  margin-top: 0.5rem;
}

.sb-center {
  text-align: center;
}

.sb-divider {
  border: none;
  border-top: 1px solid var(--sb-line);
  margin: 1.2rem 0;
}

.sb-count-pill {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--sb-green-800);
  background: var(--sb-green-tint-2);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
}

.sb-empty-hint {
  color: var(--sb-slate-2);
  font-style: italic;
  padding: 0.5rem 0;
}

/* --- Satz-Items im Builder ------------------------------------------------ */

.sb-sentence-item {
  flex-direction: column;
  align-items: stretch;
  gap: 0.6rem;
}

.sb-sentence-item.is-lowconf {
  border-color: var(--sb-warn-line, #f0c36d);
  background: #fffdf6;
}

.sb-sentence-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.sb-sentence-ord {
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--sb-green-tint-2);
  color: var(--sb-green-800);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.85rem;
  flex: none;
}

.sb-sentence-item .sb-sentence-text {
  flex: 1 1 12rem;
}

.sb-sentence-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.sb-conf-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}

.sb-conf-ok {
  background: var(--sb-ok-bg);
  color: var(--sb-green-800);
}

.sb-conf-low {
  background: #fbe9c8;
  color: #8a5a00;
}

.sb-conf-confirmed {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--sb-green-700);
}

.sb-sentence-actions {
  display: inline-flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  align-items: center;
}

.sb-iconbtn {
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 0.55rem;
  border: 1.5px solid var(--sb-line-strong);
  background: #fff;
  color: var(--sb-slate);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 1rem;
  touch-action: manipulation;
  transition: all 0.12s ease;
}

.sb-iconbtn:hover:not(:disabled) {
  border-color: var(--sb-green);
  color: var(--sb-green-700);
}

.sb-iconbtn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.sb-iconbtn-danger:hover:not(:disabled) {
  border-color: var(--sb-danger-line);
  color: var(--sb-danger);
}

.sb-btn-warn {
  background: #f4a52a;
  color: #3a2600;
}

.sb-btn-warn:hover:not(:disabled) {
  background: #e0951f;
}

.sb-lowconf-warn {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  background: #fff8ea;
  border: 1.5px solid #f0c36d;
  border-left-width: 5px;
  border-radius: var(--sb-radius-sm);
  padding: 0.85rem 1rem;
  color: #6b4a05;
  font-size: 0.92rem;
  line-height: 1.5;
}

.sb-lowconf-warn i {
  color: #d98a00;
  font-size: 1.2rem;
  flex: none;
  margin-top: 0.1rem;
}

.sb-text-warn {
  color: #8a5a00;
  font-weight: 700;
}

/* --- Aufgaben-Auswahl ----------------------------------------------------- */

.sb-task-options {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.sb-task-opt {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  border: 2px solid var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  padding: 0.75rem 0.9rem;
  cursor: pointer;
  background: #fff;
  transition: all 0.13s ease;
}

.sb-task-opt:hover {
  border-color: var(--sb-green);
}

.sb-task-opt input {
  width: 1.25rem;
  height: 1.25rem;
  accent-color: var(--sb-green);
  flex: none;
}

.sb-task-opt-body {
  font-weight: 700;
  color: var(--sb-ink);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.sb-task-opt:has(input:checked) {
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
}

/* --- Veröffentlicht: PIN + QR --------------------------------------------- */

.sb-published {
  max-width: 820px;
  margin: 0 auto;
}

.sb-published-head {
  text-align: center;
  margin-bottom: 1.6rem;
}

.sb-success-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--sb-ok-bg);
  color: var(--sb-green-800);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
}

.sb-share-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}

@media (min-width: 720px) {
  .sb-share-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.sb-share-pin, .sb-share-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.sb-share-label {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sb-slate-2);
}

.sb-pin-display {
  font-size: clamp(2.6rem, 9vw, 3.6rem);
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--sb-green-800);
  font-variant-numeric: tabular-nums;
  background: var(--sb-green-tint);
  border-radius: var(--sb-radius);
  padding: 0.6rem 1.2rem;
}

.sb-qr-box {
  background: #fff;
  padding: 0.6rem;
  border-radius: var(--sb-radius-sm);
  border: 1px solid var(--sb-line);
  line-height: 0;
}

.sb-qr-box img, .sb-qr-box canvas {
  display: block;
}

.sb-published-meta {
  text-align: center;
  margin: 1.4rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.sb-meta-line {
  color: var(--sb-slate);
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  justify-content: center;
}

.sb-published-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: center;
}

/* --- Schüler-Spieler ------------------------------------------------------ */

.sb-student-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  background: var(--sb-surface);
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.2rem;
}

.sb-student-pin-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--sb-green-800);
  background: var(--sb-green-tint-2);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}

.sb-student-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--sb-ink);
  margin: 0.4rem 0 0;
}

.sb-student-sentences {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  counter-reset: none;
}

.sb-student-sentence {
  margin: 0;
}

.sb-student-sentence-btn {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  width: 100%;
  text-align: left;
  background: #fff;
  border: 2px solid var(--sb-line-strong);
  border-radius: var(--sb-radius-sm);
  padding: 1rem 1.1rem;
  cursor: pointer;
  font: inherit;
  min-height: 4rem;
  touch-action: manipulation;
  transition: all 0.13s ease;
}

.sb-student-sentence-btn:hover {
  border-color: var(--sb-green);
  transform: translateY(-1px);
  box-shadow: var(--sb-shadow);
}

.sb-student-sentence-num {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: var(--sb-green);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1rem;
  flex: none;
}

.sb-student-sentence-main {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1 1 auto;
}

.sb-student-sentence-label {
  font-weight: 800;
  color: var(--sb-ink);
  font-size: 1.05rem;
}

.sb-student-sentence-tasks {
  font-size: 0.85rem;
  color: var(--sb-slate-2);
  font-weight: 600;
}

.sb-student-sentence-go {
  color: var(--sb-green-600);
  font-size: 1.3rem;
  flex: none;
}

/* --- Tablet-Feinschliff für Classroom ------------------------------------- */

@media (min-width: 768px) and (max-width: 1180px) {
  .sb-student-sentence-btn {
    min-height: 4.4rem;
  }
}

@media (min-width: 768px) and (max-width: 1180px) {
  .sb-task-opt {
    padding: 0.9rem 1rem;
  }
}

@media (min-width: 768px) and (max-width: 1180px) {
  .sb-text-input {
    padding: 0.9rem 1rem;
    font-size: 1.05rem;
  }
}

/* ===========================================================================
   REDESIGN 2.0 — Petrol-Politur, LingMorph-Subpage-Feeling
   (steht am Ende -> überschreibt frühere Teil-Definitionen)
   =========================================================================== */

/* --- Teal-Korrekturen an Basiskomponenten -------------------------------- */

.sb-btn-primary {
  box-shadow: 0 6px 18px var(--sb-teal-glow);
}

.sb-btn-primary:hover:not(:disabled) {
  background: var(--sb-green-600);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px var(--sb-teal-glow);
}

.sb-textarea:focus, .sb-input:focus, .sb-text-input:focus {
  border-color: var(--sb-green);
  box-shadow: 0 0 0 4px var(--sb-green-tint-2);
}

.sb-btn-lg {
  min-height: 3.5rem;
  padding: 0.95rem 1.7rem;
  font-size: 1.06rem;
}

/* Nav: aktiver Zustand kräftiger, Brand-sub gut lesbar */

.sb-brand-sub {
  display: block;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  opacity: 0.9;
  margin-top: 0.1rem;
}

.sb-topnav a.is-active {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.18);
}

/* --- HERO ----------------------------------------------------------------- */

.sb-shell {
  max-width: 1100px;
}

.sb-hero {
  position: relative;
  text-align: center;
  max-width: 760px;
  margin: 1.4rem auto 2.2rem;
  padding: 0 0.5rem;
}

.sb-hero .sb-eyebrow {
  background: var(--sb-green-tint-2);
  color: var(--sb-green-800);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px var(--sb-green-tint-3);
}

.sb-hero-title {
  font-size: clamp(2rem, 6vw, 3.1rem);
  margin: 1rem auto 0.7rem;
  line-height: 1.05;
  text-wrap: balance;
}

.sb-grad {
  background: linear-gradient(120deg, var(--sb-green), #14b8a6 60%, var(--sb-green-700));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.sb-hero .sb-lead {
  margin: 0 auto;
  max-width: 58ch;
  font-size: 1.06rem;
}

.sb-hero-tags {
  display: flex;
  justify-content: center;
  gap: 0.7rem;
  margin-top: 1.3rem;
  flex-wrap: wrap;
}

.sb-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--sb-surface);
  border: 1px solid var(--sb-line);
  color: var(--sb-green-800);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  box-shadow: var(--sb-shadow);
}

.sb-hero-tag i {
  color: var(--sb-green);
}

.sb-hero-tag-a {
  animation: sb-floaty 5s ease-in-out infinite;
}

.sb-hero-tag-b {
  animation: sb-floaty 6s ease-in-out infinite 0.6s;
}

@media (prefers-reduced-motion: reduce) {
  .sb-hero-tag-a, .sb-hero-tag-b {
    animation: none;
  }
}

/* --- Karte: etwas großzügiger + Hover-Lift bei Reveal -------------------- */

.sb-card {
  padding: 1.5rem;
  border-radius: var(--sb-radius-lg);
}

@media (min-width: 768px) {
  .sb-card {
    padding: 1.9rem;
  }
}

.sb-hint {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  margin: 0.6rem 0 1.2rem;
  font-size: 0.92rem;
  color: var(--sb-slate-2);
  line-height: 1.5;
}

.sb-hint i {
  color: var(--sb-green);
  margin-top: 0.1rem;
}

.sb-hint strong {
  color: var(--sb-green-800);
}

.sb-field-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sb-slate-2);
  margin: 1.3rem 0 0.6rem;
}

.sb-field-label i {
  color: var(--sb-green);
}

/* --- Modus-Slider (segmentiert, gleitender Knopf) ------------------------ */

.sb-modeseg {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--sb-bg-2);
  border: 1.5px solid var(--sb-line);
  border-radius: 999px;
  padding: 0.32rem;
  isolation: isolate;
}

.sb-modeseg-knob {
  position: absolute;
  z-index: 0;
  top: 0.32rem;
  bottom: 0.32rem;
  left: 0.32rem;
  width: calc(50% - 0.32rem);
  background: var(--sb-surface);
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(6, 56, 48, 0.14);
  transition: transform 0.32s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.sb-modeseg.is-manuell .sb-modeseg-knob {
  transform: translateX(100%);
}

.sb-modeseg-opt {
  position: relative;
  z-index: 1;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  border-radius: 999px;
  padding: 0.7rem 0.6rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
  color: var(--sb-slate-2);
  transition: color 0.2s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  min-height: 3.4rem;
  justify-content: center;
}

.sb-modeseg-opt i {
  font-size: 1.05rem;
}

.sb-modeseg-opt.is-active {
  color: var(--sb-green-800);
}

.sb-modeseg-opt.is-active i {
  color: var(--sb-green);
}

.sb-modeseg-tt {
  font-weight: 800;
  font-size: 0.98rem;
}

.sb-modeseg-ss {
  font-size: 0.74rem;
  font-weight: 600;
  opacity: 0.85;
}

.sb-modeseg-opt:focus-visible {
  outline: 2px solid var(--sb-green);
  outline-offset: 2px;
}

/* --- Modus-Hinweis (IMMER sichtbar; Farbe je nach Modus) ----------------- */

.sb-modenote {
  display: none;
  gap: 0.6rem;
  align-items: flex-start;
  margin-top: 0.7rem;
  padding: 0.8rem 1rem;
  border-radius: var(--sb-radius-sm);
  font-size: 0.9rem;
  line-height: 1.5;
  border: 1px solid;
  animation: sb-pop-in 0.3s ease;
}

.sb-modenote i {
  font-size: 1.15rem;
  flex: none;
  margin-top: 0.05rem;
}

.sb-modenote.is-hybrid {
  background: var(--sb-warn-bg);
  border-color: var(--sb-warn-line);
  color: #7a4d06;
}

.sb-modenote.is-hybrid i {
  color: var(--sb-warn);
}

.sb-modenote.is-manuell {
  background: #eef2ff;
  border-color: #c7d2fe;
  color: #3730a3;
}

.sb-modenote.is-manuell i {
  color: #4f46e5;
}

.sb-modenote strong {
  font-weight: 800;
}

/* --- Aufgaben-Auswahl als Karten (klare Differenzierung) ----------------- */

.sb-tasksel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

@media (min-width: 720px) {
  .sb-tasksel {
    grid-template-columns: repeat(4, 1fr);
  }
}

.sb-taskcard {
  display: block;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.sb-taskcard input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.sb-taskcard-box {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
  height: 100%;
  background: var(--sb-surface);
  border: 2px solid var(--sb-line);
  border-radius: var(--sb-radius);
  padding: 0.9rem;
  transition: transform 0.14s ease, border-color 0.14s ease, box-shadow 0.14s ease, background 0.14s ease;
}

.sb-taskcard:hover .sb-taskcard-box {
  transform: translateY(-2px);
  border-color: var(--sb-green-tint-3);
  box-shadow: var(--sb-shadow);
}

.sb-taskcard input:checked + .sb-taskcard-box {
  border-color: var(--tc, var(--sb-green));
  background: linear-gradient(180deg, #fff, var(--sb-green-tint));
  box-shadow: 0 6px 18px rgba(6, 56, 48, 0.10);
}

.sb-taskcard input:focus-visible + .sb-taskcard-box {
  outline: 2px solid var(--sb-green);
  outline-offset: 2px;
}

.sb-taskcard-ic {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.7rem;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  color: #fff;
  background: var(--tc, var(--sb-green));
  box-shadow: 0 4px 12px color-mix(in srgb, var(--tc, var(--sb-green)) 35%, transparent);
}

.sb-taskcard-main {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.sb-taskcard-t {
  font-weight: 800;
  color: var(--sb-ink);
  font-size: 0.98rem;
}

.sb-taskcard-d {
  font-size: 0.78rem;
  color: var(--sb-slate-2);
  font-weight: 600;
}

.sb-taskcard-check {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  border: 2px solid var(--sb-line-strong);
  background: #fff;
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  transition: all 0.16s ease;
}

.sb-taskcard input:checked + .sb-taskcard-box .sb-taskcard-check {
  background: var(--tc, var(--sb-green));
  border-color: var(--tc, var(--sb-green));
  transform: scale(1);
}

.sb-taskcard input:not(:checked) + .sb-taskcard-box .sb-taskcard-check i {
  opacity: 0;
}

/* --- Beispiele ------------------------------------------------------------ */

.sb-examples-wrap {
  margin-top: 1.5rem;
  padding-top: 1.3rem;
  border-top: 1px dashed var(--sb-line);
}

.sb-examples-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  font-weight: 800;
  color: var(--sb-ink);
  font-size: 0.95rem;
  margin: 0 0 0.7rem;
}

.sb-examples-label i {
  color: var(--sb-amber);
}

.sb-examples-hint {
  font-weight: 600;
  color: var(--sb-slate-2);
  font-size: 0.82rem;
}

.sb-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.sb-example-chip {
  -webkit-appearance: none;
  appearance: none;
  border: 1.5px solid var(--sb-line);
  background: var(--sb-surface);
  color: var(--sb-green-800);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.12s ease, border-color 0.12s ease, background 0.12s ease, box-shadow 0.12s ease;
  animation: sb-pop-in 0.3s ease both;
}

.sb-example-chip:hover {
  transform: translateY(-2px);
  border-color: var(--sb-green);
  background: var(--sb-green-tint);
  box-shadow: var(--sb-shadow);
}

.sb-example-chip i {
  color: var(--sb-green);
  font-size: 0.85rem;
}

/* --- Leerer Zustand ------------------------------------------------------- */

.sb-empty {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--sb-slate-2);
}

.sb-empty-ic {
  display: inline-grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  border-radius: 1.2rem;
  background: var(--sb-green-tint-2);
  color: var(--sb-green);
  font-size: 1.8rem;
  margin-bottom: 1rem;
  animation: sb-floaty 5s ease-in-out infinite;
}

.sb-empty-title {
  font-weight: 800;
  color: var(--sb-ink);
  font-size: 1.15rem;
}

.sb-empty-text {
  max-width: 42ch;
  margin: 0.4rem auto 0;
  line-height: 1.5;
}

@media (prefers-reduced-motion: reduce) {
  .sb-empty-ic {
    animation: none;
  }
}

/* --- FUSSZEILE (wie LingMorph, Petrol) ----------------------------------- */

.sb-footer {
  border-top: 1px solid var(--sb-line);
  margin-top: 3rem;
  background: var(--sb-surface);
}

.sb-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.4rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  justify-content: space-between;
}

.sb-footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--sb-slate);
}

.sb-footer-brand img {
  border-radius: 0.4rem;
}

.sb-footer-brand a, .sb-footer-links a {
  color: var(--sb-green-700);
  font-weight: 700;
  text-decoration: none;
}

.sb-footer-brand a:hover, .sb-footer-links a:hover {
  text-decoration: underline;
}

.sb-footer-copy {
  font-size: 0.85rem;
  color: var(--sb-slate-2);
  font-weight: 600;
}

.sb-footer-links {
  display: inline-flex;
  gap: 1.1rem;
  font-size: 0.88rem;
}

/* --- Auswahl-Feld (Gültigkeitsdauer) ------------------------------------- */

.sb-select {
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%230F766E' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.6rem;
  cursor: pointer;
}

/* --- Zähler-Pille --------------------------------------------------------- */

.sb-count-pill {
  display: inline-flex;
  align-items: center;
  background: var(--sb-green-tint-2);
  color: var(--sb-green-800);
  font-weight: 800;
  font-size: 0.78rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
}

/* --- Bibliothek gespeicherter Sets --------------------------------------- */

.sb-library-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.sb-library-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  background: var(--sb-surface);
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-radius);
  padding: 0.9rem 1rem;
  transition: border-color 0.14s ease, box-shadow 0.14s ease, transform 0.14s ease;
  animation: sb-pop-in 0.3s ease both;
}

.sb-library-item:hover {
  border-color: var(--sb-green-tint-3);
  box-shadow: var(--sb-shadow);
  transform: translateY(-1px);
}

.sb-library-info {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
  flex: 1 1 16rem;
}

.sb-library-title {
  font-weight: 800;
  color: var(--sb-ink);
  font-size: 1.02rem;
}

.sb-library-sub {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--sb-slate-2);
}

.sb-library-sub span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.sb-library-sub i {
  color: var(--sb-green);
}

.sb-library-pin {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  letter-spacing: 0.05em;
  color: var(--sb-green-800) !important;
}

.sb-library-tasks {
  font-size: 0.78rem;
  color: var(--sb-slate-2);
}

.sb-library-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

/* --- Modus-Hinweis: Sichtbarkeit ----------------------------------------- */

.sb-modenote.is-hybrid, .sb-modenote.is-manuell {
  display: flex;
}

/* --- Veröffentlicht: Modus-Zeile ----------------------------------------- */

.sb-published-mode {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--sb-green-800);
  background: var(--sb-green-tint);
  border: 1px solid var(--sb-green-tint-3);
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
}

.sb-published-mode i {
  color: var(--sb-green);
}

/* --- Ungültige Eingabe (mehr als ein Satz) -------------------------------- */

.sb-input-invalid, textarea.sb-input-invalid, .sb-text-input.sb-input-invalid {
  border-color: var(--sb-danger) !important;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--sb-danger) 18%, transparent) !important;
}

/* --- Ergebnis-Panel (Auswertung) ----------------------------------------- */

/* Überschreibt ältere .sb-result-Regeln (Reihenfolge = höhere Priorität). */

.sb-result {
  display: block;
  width: 100%;
  margin-top: 1rem;
  padding: 1.1rem 1.2rem;
  border-radius: var(--sb-radius);
  border: 1px solid var(--sb-line);
  background: var(--sb-surface);
  animation: sb-pop-in 0.32s ease both;
}

.sb-result.is-perfect {
  border-color: var(--sb-green-tint-3);
  background: var(--sb-green-tint);
}

.sb-result.is-mid {
  border-color: #FBE7B0;
  background: #FFFAEE;
}

.sb-result.is-low {
  border-color: #F4C7C3;
  background: #FEF4F3;
}

.sb-result-head {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.sb-result-ring {
  flex: 0 0 auto;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: radial-gradient(closest-side, var(--sb-surface) 70%, transparent 71%), conic-gradient(var(--sb-green) calc(var(--sb-pct, 100) * 1%), color-mix(in srgb, var(--sb-green) 16%, transparent) 0);
  color: var(--sb-green-800);
}

.sb-result-ring.is-mid {
  color: #9A6B00;
  background: radial-gradient(closest-side, var(--sb-surface) 70%, transparent 71%), conic-gradient(#E8A300 calc(var(--sb-pct, 100) * 1%), color-mix(in srgb, #E8A300 16%, transparent) 0);
}

.sb-result-ring.is-low {
  color: var(--sb-danger);
  background: radial-gradient(closest-side, var(--sb-surface) 70%, transparent 71%), conic-gradient(var(--sb-danger) calc(var(--sb-pct, 100) * 1%), color-mix(in srgb, var(--sb-danger) 16%, transparent) 0);
}

.sb-result-pct {
  font-weight: 800;
  font-size: 0.92rem;
}

.sb-result-texts {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.sb-result-title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--sb-ink);
}

.sb-result.is-perfect .sb-result-title {
  color: var(--sb-green-800);
}

.sb-result-msg {
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--sb-slate-2);
}

.sb-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.9rem;
}

.sb-done-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--sb-green-800);
  background: var(--sb-green-tint-2);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
}

/* --- Responsive Nav ------------------------------------------------------- */

@media (max-width: 540px) {
  .sb-nav-t {
    display: none;
  }
}

@media (max-width: 540px) {
  .sb-topnav a {
    padding: 0.55rem 0.7rem;
    font-size: 1rem;
  }
}

@media (max-width: 540px) {
  .sb-brand-sub {
    display: none;
  }
}

@media (max-width: 540px) {
  .sb-examples-label {
    flex-wrap: wrap;
  }
}

@media (max-width: 540px) {
  .sb-result-head {
    flex-wrap: wrap;
  }
}

@media (max-width: 540px) {
  .sb-library-item {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 540px) {
  .sb-library-actions {
    width: 100%;
  }
}