/* ═══════════════════════════════════════════════════════════════
   DEMO INDEX · style.css
   Sphaera Coaching · Menú principal de herramientas
   Mobile-first · Breakpoints: 480 · 768 · 900 · 1100
   ═══════════════════════════════════════════════════════════════ */

/* ─── RESET & BASE ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

:root {
  --terra:      #a0764e;
  --terra-d:    #8b6b4a;
  --terra-l:    #f0e6d8;
  --sand:       #f5f0e8;
  --linen:      #ede7d9;
  --cream:      #fdfaf5;
  --charcoal:   #2c2925;
  --warm-mid:   #6b5c48;
  --mist:       #ddd6c8;
  --sage:       #7a8c7e;
  --white:      #ffffff;
  --radius:     14px;
  --shadow:     0 2px 16px rgba(44,41,37,.07);
  --tr:         .2s ease;
}

body {
  font-family: 'Jost', sans-serif;
  background: var(--sand);
  color: var(--charcoal);
  font-weight: 300;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-top: 80px; /* compensar nav fixed */
}

/* ─── NAV (idéntico al sitio principal) ─── */
nav {
  position:fixed; top:0; left:0; right:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:20px 56px;
  background:rgba(245,240,232,0.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color 0.4s, padding 0.4s;
  gap:24px;
}
nav.scrolled { border-color:var(--mist); padding:12px 56px; }
.nav-logo { text-decoration:none; display:flex; align-items:center; flex-shrink:0; }
.nav-logo svg { display:block; width:152px; height:38px; }
.nav-right { display:flex; align-items:center; gap:36px; margin-left:auto; }
.nav-links { display:flex; gap:36px; list-style:none; align-items:center; }
.nav-links a {
  font-family:'Jost',sans-serif; font-size:12px; font-weight:400;
  letter-spacing:0.14em; text-transform:uppercase; color:var(--warm-mid);
  text-decoration:none; transition:color 0.25s;
}
.nav-links a:hover, .nav-links a.active { color:var(--charcoal); }
.nav-cta {
  font-family:'Cormorant Garamond',serif; font-size:20px; font-weight:700;
  font-style:italic; letter-spacing:0.02em; text-transform:none;
  color:var(--terra); text-decoration:none;
  border:1.5px solid var(--terra); padding:8px 22px;
  transition:color 0.25s, background 0.25s;
  white-space:nowrap; flex-shrink:0;
}
.nav-cta:hover { color:var(--white); background:var(--terra); }
.nav-hamburger {
  display:none; flex-direction:column; justify-content:center;
  gap:5px; width:36px; height:36px; background:none; border:none;
  cursor:pointer; padding:4px; flex-shrink:0;
}
.nav-hamburger span {
  display:block; width:22px; height:1.5px;
  background:var(--warm-mid); transition:all 0.3s ease;
}
.nav-hamburger.open span:nth-child(1) { transform:translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity:0; }
.nav-hamburger.open span:nth-child(3) { transform:translateY(-6.5px) rotate(-45deg); }
.nav-mobile-overlay {
  display:block; position:fixed; top:0; right:0; bottom:0; z-index:99;
  width:min(300px, 85vw);
  background:rgba(44,41,37,0.98);
  transform:translateX(100%);
  transition:transform 0.3s ease, visibility 0.3s;
  visibility:hidden;
  overflow-y:auto; -webkit-overflow-scrolling:touch;
  padding:120px 28px 48px;
  display:flex; flex-direction:column;
}
.nav-mobile-overlay.open { transform:translateX(0); visibility:visible; }
.nav-mobile-overlay ul {
  display:flex; flex-direction:column;
  gap:0; list-style:none; width:100%; margin:0;
}
.nav-mobile-overlay ul li {
  width:100%;
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.nav-mobile-overlay ul li:first-child {
  border-top:1px solid rgba(255,255,255,0.06);
}
.nav-mobile-overlay ul a {
  font-family:'Jost',sans-serif; font-size:17px; font-weight:300;
  color:rgba(255,255,255,0.7); text-decoration:none; letter-spacing:0.04em;
  transition:color 0.2s; display:block; padding:14px 0;
}
.nav-mobile-overlay ul a:hover,
.nav-mobile-overlay ul a.active { color:var(--terra); }
.nav-mobile-overlay .nav-mobile-cta {
  font-family:'Jost',sans-serif; font-size:14px; font-weight:400;
  letter-spacing:0.1em; text-transform:uppercase; color:var(--terra);
  text-decoration:none; margin-top:28px; display:inline-block;
  border:1.5px solid var(--terra); padding:12px 24px;
  transition:color 0.2s, background 0.2s; text-align:center; width:100%;
}
.nav-mobile-overlay .nav-mobile-cta:hover { color:var(--white); background:var(--terra); }
.nav-mobile-close {
  position:absolute; top:18px; right:18px; background:none; border:none;
  color:rgba(255,255,255,0.5); font-size:24px; cursor:pointer; line-height:1;
  transition:color 0.2s; font-weight:300; padding:8px;
  -webkit-tap-highlight-color:transparent;
}
.nav-mobile-close:hover { color:var(--white); }

/* ─── HEADER ─── */
.header {
  padding: 48px 20px 36px;
  text-align: center;
  background: linear-gradient(to bottom, var(--terra-l), var(--sand));
  border-bottom: 1px solid var(--mist);
}
.header__eyebrow {
  display: block;
  font-size: 9.5px;
  font-weight: 400;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 12px;
  opacity: .8;
}
.header__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(30px, 7vw, 46px);
  font-weight: 300;
  line-height: 1.15;
  color: var(--charcoal);
  margin-bottom: 12px;
}
.header__title em { color: var(--terra); font-style: italic; }
.header__sub {
  font-size: 14px;
  font-weight: 300;
  color: var(--warm-mid);
  line-height: 1.75;
  max-width: 480px;
  margin: 0 auto;
}

/* ─── FILTROS + BUSCADOR ─── */
.filtros-wrap {
  position: sticky;
  top: 60px;
  z-index: 80;
  background: rgba(245,240,232,0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--mist);
  padding: 0;
}

/* Buscador */
.buscador-wrap {
  position: relative;
  display: flex;
  align-items: center;
  padding: 14px 20px 0;
}
.buscador-wrap__icono {
  position: absolute;
  left: 34px;
  color: var(--terra);
  opacity: .55;
  display: flex;
  align-items: center;
  pointer-events: none;
  transition: opacity var(--tr);
}
.buscador-wrap:focus-within .buscador-wrap__icono { opacity: 1; }

.buscador-input {
  width: 100%;
  font-family: 'Jost', sans-serif;
  font-size: 14px;
  font-weight: 300;
  color: var(--charcoal);
  background: var(--cream);
  border: 1.5px solid var(--mist);
  border-radius: 100px;
  padding: 10px 40px 10px 40px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
  -webkit-appearance: none;
  appearance: none;
}
.buscador-input::placeholder {
  color: var(--warm-mid);
  opacity: .55;
  font-weight: 300;
}
.buscador-input:focus {
  border-color: var(--terra);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(160,118,78,.1);
}
.buscador-input::-webkit-search-decoration,
.buscador-input::-webkit-search-cancel-button { display: none; }

.buscador-limpiar {
  position: absolute;
  right: 34px;
  background: var(--mist);
  border: none;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--warm-mid);
  cursor: pointer;
  transition: background var(--tr), color var(--tr);
  line-height: 1;
  padding: 0;
}
.buscador-limpiar:hover { background: var(--terra); color: var(--cream); }

/* Sin resultados */
.sin-resultados {
  text-align: center;
  padding: 48px 20px;
  font-family: 'Cormorant Garamond', serif;
  font-size: 18px;
  color: var(--warm-mid);
  opacity: .65;
  font-style: italic;
}

/* Filtros de categoría */
.filtros-scroll {
  display: flex;
  gap: 8px;
  padding: 10px 20px 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.filtros-scroll::-webkit-scrollbar { display: none; }

.filtro-btn {
  flex-shrink: 0;
  font-family: 'Jost', sans-serif;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .08em;
  padding: 7px 15px;
  border-radius: 100px;
  border: 1.5px solid var(--mist);
  background: var(--cream);
  color: var(--warm-mid);
  cursor: pointer;
  transition: all var(--tr);
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  line-height: 1;
}
.filtro-btn:hover { border-color: var(--terra); color: var(--terra); }
.filtro-btn.activo {
  background: var(--terra);
  border-color: var(--terra);
  color: var(--cream);
  font-weight: 500;
}

/* ─── CONTENEDOR PRINCIPAL ─── */
.main-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

/* ─── SECCIONES DE CATEGORÍA ─── */
.categoria-section {
  margin-bottom: 40px;
  transition: opacity .25s ease;
}
.categoria-section.oculta { display: none; }

.categoria-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 9.5px;
  font-weight: 400;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--mist);
}
.categoria-label::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--terra);
  opacity: .5;
  flex-shrink: 0;
}

/* ─── GRID DE TARJETAS ─── */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

/* ─── TARJETA ─── */
.card {
  display: flex;
  flex-direction: column;
  background: var(--cream);
  border: 1px solid var(--mist);
  border-radius: var(--radius);
  padding: 20px 18px 16px;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2.5px;
  background: linear-gradient(90deg, var(--terra), transparent);
  opacity: 0;
  transition: opacity var(--tr);
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(44,41,37,.09);
  border-color: var(--mist);
}
.card:hover::before { opacity: 1; }

.card__icon {
  font-size: 24px;
  margin-bottom: 10px;
  line-height: 1;
}
.card__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 19px;
  font-weight: 600;
  color: var(--charcoal);
  line-height: 1.2;
  margin-bottom: 6px;
}
.card__desc {
  font-size: 12.5px;
  font-weight: 300;
  color: var(--warm-mid);
  line-height: 1.65;
  flex: 1;
}
.card__arrow {
  margin-top: 12px;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .05em;
  color: var(--terra);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--tr);
}
.card:hover .card__arrow { gap: 8px; }

/* ─── BLOQUE RECUPERAR CÓDIGO ─── */
.codigo-wrap {
  margin-top: 40px;
  background: #f0f7ee;
  border: 1.5px solid #c5dfc2;
  border-radius: 16px;
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  max-width: 520px;
}
.codigo-wrap__icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.codigo-wrap__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 19px;
  font-weight: 600;
  color: #3a2e28;
  margin-bottom: 6px;
}
.codigo-wrap__desc {
  font-size: 13px;
  color: #4a6a47;
  line-height: 1.65;
  margin-bottom: 14px;
}
.codigo-wrap__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1.5px solid #8fba8a;
  border-radius: 8px;
  padding: 9px 16px;
  font-family: 'Jost', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: #4a6a47;
  cursor: pointer;
  transition: background var(--tr);
}
.codigo-wrap__btn:hover { background: #e6f3e4; }

/* ─── FOOTER ─── */
footer {
  text-align: center;
  padding: 20px;
  border-top: 1px solid var(--mist);
  font-size: 12px;
  color: var(--warm-mid);
}
footer a { color: var(--terra); text-decoration: none; }

/* ─── MODAL ─── */
dialog::backdrop { background: rgba(58,46,40,0.45); backdrop-filter: blur(4px); }

/* ─── EMPTY STATE (cuando no hay herramientas en categoría) ─── */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--warm-mid);
  font-size: 14px;
  opacity: .6;
  display: none;
}
.empty-state.visible { display: block; }

/* ─── RESPONSIVE ─── */
@media (min-width: 480px) {
  .main-wrap { padding: 36px 24px 88px; }
  .buscador-wrap { padding: 14px 24px 0; }
  .buscador-wrap__icono { left: 38px; }
  .buscador-limpiar { right: 38px; }
  .filtros-scroll { padding: 10px 24px 12px; }
  .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) {
  .header { padding: 56px 44px 44px; }
  .main-wrap { padding: 44px 32px 96px; }
  .buscador-wrap { padding: 14px 32px 0; }
  .buscador-wrap__icono { left: 46px; }
  .buscador-limpiar { right: 46px; }
  .filtros-scroll { padding: 10px 32px 12px; gap: 10px; }
  .grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
  .main-wrap { padding: 48px 0 96px; }
  .buscador-wrap { max-width: 900px; margin: 0 auto; padding: 16px 0 0; }
  .buscador-wrap__icono { left: 14px; }
  .buscador-limpiar { right: 14px; }
  .filtros-scroll { padding: 10px 0 14px; justify-content: center; max-width: 900px; margin: 0 auto; }
}
@media (max-width: 1100px) {
  .nav-links { display:none; }
  .nav-cta { display:none; }
  .nav-hamburger { display:flex; }
}
@media (max-width: 900px) {
  nav { padding:14px 20px; gap:12px; }
  nav.scrolled { padding:10px 20px; }
  .nav-cta { font-size:16px; padding:6px 16px; }
  body { padding-top: 72px; }
}
@media (min-width: 1100px) {
  .grid { grid-template-columns: repeat(4, 1fr); }
}

/* ─── BANNER DEMO ─── */
.demo-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  background: linear-gradient(135deg, var(--terra-l) 0%, #e8f3e6 100%);
  border-bottom: 1px solid var(--mist);
  padding: 12px 20px;
  font-size: 13px;
  color: var(--warm-mid);
  flex-wrap: wrap;
}
.demo-banner__icono {
  font-size: 18px;
  flex-shrink: 0;
}
.demo-banner > div {
  flex: 1;
  min-width: 180px;
}
.demo-banner strong {
  display: block;
  font-weight: 500;
  color: var(--charcoal);
  margin-bottom: 2px;
  font-size: 13px;
}
.demo-banner span {
  font-size: 12px;
  line-height: 1.5;
}
.demo-banner__cta {
  display: inline-block;
  padding: 8px 16px;
  background: var(--terra);
  color: #fdfaf5;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 400;
  text-decoration: none;
  white-space: nowrap;
  transition: background .2s ease;
  flex-shrink: 0;
}
.demo-banner__cta:hover {
  background: var(--terra-d);
}

@media (min-width: 768px) {
  .demo-banner {
    padding: 12px 32px;
    flex-wrap: nowrap;
  }
}

/* ─── DRAWER: landscape / tablet horizontal ─── */
@media (max-height:500px) and (max-width:1100px) {
  .nav-mobile-overlay { padding:80px 24px 24px; }
  .nav-mobile-overlay ul a { font-size:14px; padding:9px 0; }
  .nav-mobile-overlay .nav-mobile-cta { margin-top:16px; padding:9px 20px; font-size:13px; }
}