:root {
  --gsw-emerald: #059669;
  --gsw-emerald-dark: #047857;
  --gsw-slate: #0f172a;
  --gsw-border: #dbe4ee;
}

.gsw-shell {
  width: min(1120px, calc(100% - 1.5rem));
  margin-inline: auto;
}

.gsw-panel {
  background: #fff;
  border: 1px solid var(--gsw-border);
  border-radius: 1.5rem;
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
}

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

.gsw-how-to summary {
  cursor: pointer;
  list-style: none;
}
.gsw-how-to summary::-webkit-details-marker { display: none; }
.gsw-how-to summary::after {
  content: "+";
  margin-left: auto;
  font-size: 1.5rem;
  line-height: 1;
}
.gsw-how-to[open] summary::after { content: "−"; }

.gsw-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.gsw-feature-card {
  padding: 1.25rem;
  border: 1px solid #dbeafe;
  border-radius: 1.25rem;
  background: linear-gradient(145deg, #f8fafc, #ecfdf5);
  text-align: center;
}
.gsw-feature-card h2 {
  margin-top: .7rem;
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--gsw-slate);
}
.gsw-feature-card p {
  margin-top: .35rem;
  color: #64748b;
  line-height: 1.5;
}

.gsw-hud {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: .65rem;
}
.gsw-stat {
  min-width: 0;
  padding: .75rem .6rem;
  background: #fff;
  border: 1px solid var(--gsw-border);
  border-radius: 1rem;
  text-align: center;
  box-shadow: 0 8px 22px rgba(15,23,42,.05);
}
.gsw-stat span {
  display: block;
  font-size: .7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #64748b;
}
.gsw-stat strong {
  display: block;
  margin-top: .2rem;
  font-size: 1.05rem;
  color: var(--gsw-slate);
  white-space: nowrap;
}

.gsw-timer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.gsw-timer-pill {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .6rem .9rem;
  border-radius: 999px;
  background: #ecfdf5;
  color: #047857;
  font-weight: 900;
  min-width: 5.5rem;
  justify-content: center;
}
.gsw-timer-pill.gsw-warning {
  background: #fff7ed;
  color: #c2410c;
  animation: gswPulse .8s ease-in-out infinite alternate;
}
.gsw-timer-pill.gsw-danger {
  background: #fef2f2;
  color: #dc2626;
}
.gsw-timer-track {
  height: .6rem;
  overflow: hidden;
  border-radius: 999px;
  background: #e2e8f0;
}
.gsw-timer-track span {
  display: block;
  height: 100%;
  width: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #10b981, #059669);
  transition: width .2s linear, background .2s ease;
}
.gsw-timer-track span.gsw-warning { background: #f59e0b; }
.gsw-timer-track span.gsw-danger { background: #ef4444; }

.gsw-clue-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.gsw-clue-card {
  padding: 1.35rem;
  border-radius: 1.25rem;
  border: 1px solid var(--gsw-border);
}
.gsw-definition-card { background: #f0fdf4; border-color: #bbf7d0; }
.gsw-example-card { background: #eff6ff; border-color: #bfdbfe; }
.gsw-clue-label {
  margin-bottom: .65rem;
  font-size: .75rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #475569;
}
.gsw-clue-text {
  font-size: clamp(1.05rem, 2.1vw, 1.35rem);
  line-height: 1.65;
  font-weight: 700;
  color: #1e293b;
}

.gsw-answer-boxes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(.35rem, 1vw, .65rem);
  max-width: 920px;
  margin-inline: auto;
}
.gsw-letter-box {
  width: clamp(2.45rem, 6vw, 3.45rem);
  height: clamp(3rem, 7vw, 4rem);
  border: 2px solid #cbd5e1;
  border-radius: .8rem;
  background: #fff;
  text-align: center;
  font-size: clamp(1.3rem, 4vw, 2rem);
  font-weight: 900;
  color: var(--gsw-slate);
  text-transform: lowercase;
  outline: none;
  caret-color: var(--gsw-emerald);
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease, background .15s ease;
}
.gsw-letter-box:focus {
  border-color: var(--gsw-emerald);
  box-shadow: 0 0 0 4px rgba(5,150,105,.15);
  transform: translateY(-2px);
}
.gsw-letter-box.gsw-revealed {
  background: #fef3c7;
  border-color: #f59e0b;
  color: #92400e;
}
.gsw-letter-box.gsw-wrong {
  border-color: #ef4444;
  background: #fef2f2;
  animation: gswShake .28s ease;
}

.gsw-answer-message {
  width: min(700px, 100%);
  margin: 1rem auto 0;
  padding: .85rem 1rem;
  border-radius: .9rem;
  text-align: center;
  font-weight: 800;
}
.gsw-answer-message.gsw-error { background: #fef2f2; color: #b91c1c; }
.gsw-answer-message.gsw-info { background: #eff6ff; color: #1d4ed8; }

.gsw-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .75rem;
}
.gsw-primary-btn,
.gsw-secondary-btn,
.gsw-enye-btn {
  border: 0;
  border-radius: .85rem;
  font-weight: 900;
  transition: transform .15s ease, background .15s ease, opacity .15s ease;
}
.gsw-primary-btn {
  padding: .85rem 1.45rem;
  background: var(--gsw-emerald);
  color: #fff;
}
.gsw-primary-btn:hover:not(:disabled) { background: var(--gsw-emerald-dark); transform: translateY(-1px); }
.gsw-primary-btn:disabled { opacity: .42; cursor: not-allowed; }
.gsw-secondary-btn {
  padding: .8rem 1.1rem;
  background: #fff;
  color: #334155;
  border: 1px solid #cbd5e1;
}
.gsw-secondary-btn:hover:not(:disabled) { background: #f8fafc; transform: translateY(-1px); }
.gsw-secondary-btn:disabled { opacity: .45; cursor: not-allowed; }
.gsw-enye-btn {
  width: 3.25rem;
  height: 3.25rem;
  background: #0f172a;
  color: #fff;
  font-size: 1.45rem;
}
.gsw-enye-btn:hover { background: #334155; transform: translateY(-1px); }

.gsw-feedback-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(15, 23, 42, .72);
  backdrop-filter: blur(5px);
}
.gsw-feedback-card {
  width: min(520px, 100%);
  padding: 2rem;
  border-radius: 1.5rem;
  background: #fff;
  text-align: center;
  box-shadow: 0 30px 90px rgba(15,23,42,.3);
}

.gsw-result-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .85rem;
}
.gsw-result-item {
  padding: 1rem;
  border: 1px solid var(--gsw-border);
  border-radius: 1rem;
  background: #f8fafc;
  text-align: center;
}
.gsw-result-item span {
  display: block;
  font-size: .75rem;
  font-weight: 800;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.gsw-result-item strong {
  display: block;
  margin-top: .35rem;
  font-size: 1.15rem;
  color: var(--gsw-slate);
}

.gsw-save-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem;
  border: 1px solid #a7f3d0;
  border-radius: 1.2rem;
  background: #ecfdf5;
}
.gsw-save-controls {
  display: flex;
  gap: .6rem;
}
.gsw-save-controls input {
  width: min(230px, 45vw);
  padding: .8rem 1rem;
  border: 1px solid #94a3b8;
  border-radius: .8rem;
  background: #fff;
  font-size: 1rem;
  outline: none;
}
.gsw-save-controls input:focus {
  border-color: var(--gsw-emerald);
  box-shadow: 0 0 0 3px rgba(5,150,105,.12);
}
.gsw-save-status { grid-column: 1 / -1; min-height: 1.25rem; font-weight: 800; color: #475569; }

.gsw-table-wrap { overflow-x: auto; }
.gsw-leaderboard {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}
.gsw-leaderboard th,
.gsw-leaderboard td {
  padding: .85rem .75rem;
  border-bottom: 1px solid #e2e8f0;
  text-align: left;
  white-space: nowrap;
}
.gsw-leaderboard th {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #64748b;
  background: #f8fafc;
}
.gsw-leaderboard td { color: #334155; font-weight: 650; }
.gsw-leaderboard tr.gsw-current-player { background: #ecfdf5; }

@keyframes gswShake {
  0%,100% { transform: translateX(0); }
  33% { transform: translateX(-5px); }
  66% { transform: translateX(5px); }
}
@keyframes gswPulse {
  from { transform: scale(1); }
  to { transform: scale(1.04); }
}

@media (max-width: 900px) {
  .gsw-hud { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .gsw-result-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  .gsw-shell { width: min(100% - 1rem, 1120px); }
  .gsw-feature-grid,
  .gsw-clue-grid { grid-template-columns: 1fr; }
  .gsw-hud { position: sticky; top: .35rem; z-index: 20; gap: .35rem; }
  .gsw-stat { padding: .55rem .3rem; border-radius: .75rem; }
  .gsw-stat span { font-size: .58rem; }
  .gsw-stat strong { font-size: .86rem; }
  .gsw-letter-box {
    width: clamp(2rem, 10vw, 2.75rem);
    height: clamp(2.7rem, 12vw, 3.3rem);
    border-radius: .65rem;
    font-size: 1.35rem;
  }
  .gsw-save-card { grid-template-columns: 1fr; }
  .gsw-save-controls { flex-direction: column; }
  .gsw-save-controls input { width: 100%; }
}

@media (max-width: 430px) {
  .gsw-result-grid { grid-template-columns: 1fr 1fr; }
  .gsw-actions { gap: .5rem; }
  .gsw-secondary-btn { order: 2; width: 100%; }
  .gsw-enye-btn { order: 1; }
  .gsw-primary-btn { order: 1; }
}