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

:root {
  --bg: #f4f4f8;
  --card: #ffffff;
  --text: #1a1a2e;
  --muted: #666;
  --accent: #2d6a4f;
  --danger: #c1121f;
  --border: #ddd;
  --hint: #e9ecef;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  padding: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 0.75rem 1rem 0.6rem;
  margin: 0 -1rem 1.5rem;
}

h1 {
  font-size: 1.6rem;
  letter-spacing: -0.5px;
  line-height: 1.1;
}

.tagline {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 0.1rem;
}

.view { animation: fade 0.2s ease; }
.hidden { display: none; }

@keyframes fade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

#view-landing {
  text-align: center;
}

#section-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.75rem;
  margin-top: 1.5rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

#section-buttons button {
  padding: 1rem;
  font-size: 1rem;
  background: var(--card);
  color: var(--text);
  border: 2px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.1s;
}

#section-buttons button:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

#levels-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
}

.level-random-btn {
  padding: 0.85rem;
  font-size: 1rem;
  font-weight: 600;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  margin-bottom: 0.5rem;
}

.level-random-btn:hover { opacity: 0.88; }

.level-btn {
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
}

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


  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

#puzzle-label {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.9rem;
}

section {
  background: var(--card);
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
}

#hints-list {
  list-style: none;
  padding-left: 0;
}

#hints-list li {
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.4rem;
  background: var(--hint);
  border-radius: 6px;
  font-size: 0.95rem;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

#hints-list li::before {
  content: counter(item);
  counter-increment: item;
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  line-height: 1.5rem;
  text-align: center;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: bold;
  margin-right: 0.5rem;
}

#hints-list { counter-reset: item; }

#search-input {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}

#search-input:focus {
  outline: none;
  border-color: var(--accent);
}

#search-results {
  margin-top: 0.5rem;
  border-radius: 6px;
}

#search-results div {
  padding: 0.6rem 0.75rem;
  background: var(--hint);
  cursor: pointer;
  border-radius: 6px;
  margin-bottom: 0.3rem;
}

#search-results div:hover {
  background: var(--accent);
  color: white;
}

#search-results div.guessed {
  opacity: 0.4;
  text-decoration: line-through;
  cursor: default;
}

#search-results div.guessed:hover {
  background: var(--hint);
  color: var(--text);
}

.danger-btn {
  margin-top: 0.75rem;
  padding: 0.6rem 1rem;
  background: none;
  color: var(--danger);
  border: 1px solid var(--danger);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
}

.danger-btn:hover {
  background: var(--danger);
  color: white;
}

#guess-list {
  list-style: none;
}

#guess-list li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
}

#guess-list li:last-child { border-bottom: none; }

#guess-list .wrong { color: var(--danger); }
#guess-list .hint-tag { color: var(--muted); font-size: 0.8rem; }

#view-result {
  text-align: center;
  padding-top: 2rem;
}

#result-answer {
  font-size: 2rem;
  font-weight: bold;
  color: var(--accent);
  margin: 1rem 0;
}

#result-tier {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: var(--accent);
  color: white;
  border-radius: 999px;
  font-weight: bold;
  margin-bottom: 1rem;
}

#result-tier.revealed {
  background: var(--muted);
}

#result-detail {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.result-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1rem;
}

.accent-btn {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.outline-btn {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  z-index: 1000;
  transition: opacity 0.3s;
}

.toast.hidden {
  opacity: 0;
  pointer-events: none;
}

/* --- Header --- */
#header-auth {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 0.4rem;
  flex-wrap: wrap;
}

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.stat-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  text-align: center;
}

.stat-val {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--accent);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.2rem;
}

.stats-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.stats-table th, .stats-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.stats-table th {
  color: var(--muted);
  font-weight: 600;
}