/* ===========================
   STOP / TUTTI FRUTTI — CSS
   Mobile-first, responsive
   =========================== */

:root {
  --color-bg:       #f5f0ff;
  --color-surface:  #ffffff;
  --color-primary:  #6c3fc5;
  --color-primary-light: #8b5cf6;
  --color-accent:   #f59e0b;
  --color-text:     #1e1b2e;
  --color-muted:    #6b7280;
  --color-border:   #e5e7eb;
  --radius:         12px;
  --shadow:         0 2px 12px rgba(108, 63, 197, 0.12);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.5;
  font-size: 16px;
}

/* ── HEADER ── */
.site-header {
  background: linear-gradient(135deg, var(--color-primary), #a855f7);
  color: white;
  text-align: center;
  padding: 1.5rem 1rem 1.2rem;
}
.header-inner { max-width: 1100px; margin: 0 auto; }

.site-title {
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.5px;
}
.site-subtitle {
  font-size: clamp(0.85rem, 2.5vw, 1.05rem);
  font-weight: 400;
  opacity: 0.88;
  margin-top: 0.3rem;
}

/* ── INTRO SEO ── */
.intro-seo {
  background: #ede9fe;
  border-left: 4px solid var(--color-primary-light);
  padding: 0.75rem 1rem;
  max-width: 1100px;
  margin: 1rem auto;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.88rem;
}
.intro-seo h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--color-primary);
}
.intro-seo p { color: #4b5563; }

/* ── MAIN APP ── */
.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem;
}

/* ── CONFIG PANEL ── */
.config-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}
.config-panel summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
  user-select: none;
  list-style: none;
}
.config-panel summary::-webkit-details-marker { display: none; }
.config-panel[open] summary { margin-bottom: 0.75rem; }

.categorias-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.toggle-item {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  background: #f3f4f6;
  border: 2px solid transparent;
  border-radius: 20px;
  padding: 0.3rem 0.7rem;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.toggle-item.activa {
  background: #ede9fe;
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}
.toggle-item input { display: none; }

/* ── LETRA SECTION ── */
.letra-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.btn-nueva-letra {
  background: linear-gradient(135deg, var(--color-primary), #a855f7);
  color: white;
  border: none;
  border-radius: 50px;
  padding: 1rem 2.5rem;
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(108, 63, 197, 0.4);
  transition: transform 0.1s, box-shadow 0.1s;
  min-width: 220px;
  text-align: center;
}
.btn-nueva-letra:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(108, 63, 197, 0.5);
}
.btn-nueva-letra:active:not(:disabled) { transform: translateY(0); }
.btn-nueva-letra:disabled { opacity: 0.85; cursor: default; }
.btn-nueva-letra.girando {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  animation: pulseBg 0.12s infinite;
}

@keyframes pulseBg {
  0%, 100% { filter: brightness(1); }
  50%       { filter: brightness(1.15); }
}

.letra-animada {
  font-size: 2rem;
  font-weight: 900;
  display: inline-block;
  animation: spinLetter 0.08s infinite;
}
@keyframes spinLetter {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* ── SELECTOR MANUAL DE LETRA ── */
.letra-manual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  max-width: 560px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  box-shadow: var(--shadow);
}
.letra-manual-label {
  font-size: 0.78rem;
  color: var(--color-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.letras-rapidas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.3rem;
}
.btn-letra {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s, transform 0.1s;
  color: var(--color-text);
}
.btn-letra:hover:not(:disabled) {
  background: #ede9fe;
  border-color: var(--color-primary-light);
}
.btn-letra.activa {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: scale(1.15);
}
.btn-letra:disabled { opacity: 0.5; cursor: default; }

.letra-actual {
  text-align: center;
}
.letra-display {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 90px;
  height: 90px;
  background: linear-gradient(135deg, var(--color-accent), #f97316);
  color: white;
  font-size: 3.5rem;
  font-weight: 900;
  border-radius: 20px;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
  animation: popIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes popIn {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

/* ── CARDS GRID ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
@media (min-width: 480px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 680px) {
  .cards-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
  .cards-grid { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.75rem;
  border-top: 4px solid var(--cat-color, #8b5cf6);
  position: relative;
  transition: transform 0.15s;
  animation: fadeUp 0.25s ease both;
}
.card:hover { transform: translateY(-2px); }

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

.card-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}
.card-emoji { font-size: 1.15rem; }
.card-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.card-body { min-height: 2.2rem; }
.card-palabra {
  font-size: clamp(1rem, 2.5vw, 1.1rem);
  font-weight: 700;
  color: var(--color-text);
  word-break: break-word;
}
.btn-regenerar {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: none;
  border: none;
  font-size: 0.85rem;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.15s, transform 0.2s;
  padding: 0.2rem;
  border-radius: 50%;
}
.btn-regenerar:hover { opacity: 1; transform: rotate(180deg); }

/* ── ACCIONES ── */
.acciones {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.5rem;
  padding-bottom: 2rem;
}

.btn-copiar,
.btn-regenerar-todo {
  border: none;
  border-radius: 50px;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
}
.btn-copiar {
  background: #10b981;
  color: white;
  box-shadow: 0 3px 12px rgba(16, 185, 129, 0.35);
}
.btn-copiar:hover { transform: translateY(-1px); box-shadow: 0 5px 16px rgba(16, 185, 129, 0.45); }

.btn-regenerar-todo {
  background: white;
  color: var(--color-primary);
  border: 2px solid var(--color-primary-light);
}
.btn-regenerar-todo:hover { background: #ede9fe; }

/* ── FOOTER ── */
.site-footer {
  text-align: center;
  padding: 1.5rem 1rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.82rem;
  color: var(--color-muted);
}
.site-footer a { color: var(--color-primary); text-decoration: none; }
.footer-keywords {
  margin-top: 0.4rem;
  font-size: 0.75rem;
  opacity: 0.7;
}

/* ── [x-cloak] ── */
[x-cloak] { display: none !important; }