/* ============================================================
   TeachForge — Design system
   Tema: componentes de hardware (PCB / spec-sheet)
   ============================================================ */

:root{
  --graphite-950:#0F1216;
  --graphite-900:#14171C;
  --graphite-800:#1D2128;
  --graphite-700:#272C34;
  --graphite-600:#3A4048;
  --line:#2B3038;
  --ink:#F2F4F6;
  --ink-dim:#AEB4BD;
  --teal:#00C2A8;
  --teal-dim:#0A8F7C;
  --amber:#FFB020;
  --red:#FF5A5F;
  --white:#FFFFFF;
  --surface:#F5F6F8;

  --font-display:'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body:'Inter', 'Segoe UI', sans-serif;
  --font-mono:'JetBrains Mono', 'Consolas', monospace;

  --radius:10px;
  --shadow:0 20px 50px rgba(15,18,22,0.18);
}

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

body{
  font-family:var(--font-body);
  background:var(--surface);
  color:var(--graphite-900);
  min-height:100vh;
}

a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
ul{ list-style:none; }

h1,h2,h3,h4{ font-family:var(--font-display); letter-spacing:-0.01em; }

/* ---------- chip-corner: firma visual de la marca ---------- */
.chip-corner{
  clip-path: polygon(0 12px, 12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

/* ============================================================
   NAVBAR (páginas internas: inicio / articulos)
   ============================================================ */
.navbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  background:var(--graphite-900);
  color:var(--ink);
  padding:14px 40px;
}
.navbar .brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:20px;
}
.navbar .brand .dot{
  width:10px;height:10px;border-radius:2px;
  background:var(--teal);
  transform:rotate(45deg);
}
.navbar nav{ display:flex; align-items:center; gap:28px; }
.navbar nav a{
  font-size:14px;
  color:var(--ink-dim);
  font-weight:500;
  transition:color .15s ease;
}
.navbar nav a:hover, .navbar nav a.active{ color:var(--teal); }
.navbar nav a.salir{
  color:var(--ink);
  background:var(--graphite-700);
  padding:8px 14px;
  border-radius:6px;
}
.navbar nav a.salir:hover{ background:var(--red); color:var(--white); }
.navbar .rol-tag{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--teal);
  border:1px solid var(--teal-dim);
  padding:3px 8px;
  border-radius:20px;
  text-transform:uppercase;
}

/* ============================================================
   AUTENTICACIÓN (index.html)
   ============================================================ */
.auth-shell{
  min-height:100vh;
  display:grid;
  grid-template-columns:1fr 1fr;
}
@media (max-width:900px){
  .auth-shell{ grid-template-columns:1fr; }
  .auth-side{ display:none; }
}

.auth-side{
  background:var(--graphite-900);
  color:var(--ink);
  position:relative;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:56px;
}
.auth-side::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:36px 36px;
  opacity:.35;
}
.auth-side .pins{
  position:absolute;
  right:-40px; bottom:-40px;
  width:320px; height:320px;
  display:grid;
  grid-template-columns:repeat(8,1fr);
  gap:10px;
  opacity:.5;
}
.auth-side .pins span{
  width:6px;height:6px;background:var(--teal);border-radius:1px;
}
.auth-side .brand{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-display);
  font-size:24px;
  font-weight:700;
}
.auth-side .brand .dot{
  width:12px;height:12px;background:var(--teal);transform:rotate(45deg);border-radius:2px;
}
.auth-side .pitch{ position:relative; z-index:1; max-width:380px; }
.auth-side .pitch h2{
  font-size:34px;
  line-height:1.15;
  margin-bottom:16px;
}
.auth-side .pitch p{
  color:var(--ink-dim);
  font-size:15px;
  line-height:1.6;
}
.auth-side .spec{
  position:relative; z-index:1;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--teal);
  display:flex; gap:24px;
}

.auth-form-wrap{
  display:flex;
  align-items:center;
  justify-content:center;
  padding:40px 24px;
}

.auth-card{
  width:100%;
  max-width:400px;
}
.auth-card .eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--teal-dim);
  text-transform:uppercase;
  letter-spacing:.08em;
  margin-bottom:8px;
  display:block;
}
.auth-card h1{
  font-size:28px;
  margin-bottom:6px;
}
.auth-card .sub{
  color:#6B7280;
  font-size:14px;
  margin-bottom:28px;
}

.field{ margin-bottom:16px; }
.field label{
  display:block;
  font-size:12.5px;
  font-weight:600;
  color:var(--graphite-800);
  margin-bottom:6px;
}
.field input, .field select{
  width:100%;
  padding:12px 14px;
  border:1.5px solid #DDE1E6;
  border-radius:8px;
  font-size:14px;
  font-family:var(--font-body);
  background:var(--white);
  transition:border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus{
  outline:none;
  border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(0,194,168,.15);
}
.field .hint{
  font-size:11.5px;
  color:#8A929B;
  margin-top:5px;
}
.field .hint.error{ color:var(--red); }
.field .hint.ok{ color:var(--teal-dim); }

.pw-meter{
  height:4px;
  border-radius:2px;
  background:#E5E8EB;
  margin-top:8px;
  overflow:hidden;
}
.pw-meter i{
  display:block;
  height:100%;
  width:0%;
  background:var(--red);
  transition:width .2s ease, background .2s ease;
}

.btn-primary{
  width:100%;
  padding:13px;
  background:var(--graphite-900);
  color:var(--white);
  border:none;
  border-radius:8px;
  font-weight:600;
  font-size:14.5px;
  margin-top:6px;
  transition:background .15s ease, transform .1s ease;
}
.btn-primary:hover{ background:var(--teal-dim); }
.btn-primary:active{ transform:translateY(1px); }
.btn-primary:disabled{ background:#C7CBD1; cursor:not-allowed; }

.auth-links{
  display:flex;
  justify-content:space-between;
  margin-top:16px;
  font-size:13px;
}
.auth-links a{ color:var(--teal-dim); font-weight:600; }
.auth-links a:hover{ text-decoration:underline; }

.switch-form{
  text-align:center;
  margin-top:22px;
  font-size:13.5px;
  color:#6B7280;
}
.switch-form a{ color:var(--graphite-900); font-weight:700; }

.alert{
  padding:11px 14px;
  border-radius:8px;
  font-size:13.5px;
  margin-bottom:18px;
  border:1px solid transparent;
}
.alert.error{ background:#FFF1F1; color:#B3232B; border-color:#FFD5D6; }
.alert.ok{ background:#EAFBF6; color:#0A8F7C; border-color:#BEEFE3; }

/* ============================================================
   CATÁLOGO (inicio.php / articulos.php)
   ============================================================ */
.page-shell{ max-width:1180px; margin:0 auto; padding:28px 24px 60px; }

.hero-strip{
  background:var(--graphite-900);
  color:var(--ink);
  border-radius:var(--radius);
  padding:34px 38px;
  margin-bottom:26px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:24px;
}
.hero-strip h2{ font-size:24px; margin-bottom:6px; }
.hero-strip p{ color:var(--ink-dim); font-size:14px; }

.search-row{
  display:flex;
  gap:10px;
  margin-bottom:24px;
}
.search-row input{
  flex:1;
  padding:12px 16px;
  border:1.5px solid #DDE1E6;
  border-radius:8px;
  font-size:14px;
  background:var(--white);
}
.search-row input:focus{ outline:none; border-color:var(--teal); }
.search-row button{
  padding:0 22px;
  background:var(--graphite-900);
  color:var(--white);
  border:none;
  border-radius:8px;
  font-weight:600;
}

.section-title{
  display:flex;
  align-items:baseline;
  gap:10px;
  margin:26px 0 14px;
  font-size:13px;
  font-family:var(--font-mono);
  text-transform:uppercase;
  letter-spacing:.08em;
  color:#8A929B;
}
.section-title::after{
  content:"";
  flex:1;
  height:1px;
  background:#E3E6E9;
}

.grid-productos{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(230px, 1fr));
  gap:18px;
}

.card-producto{
  background:var(--white);
  border:1px solid #E7E9EC;
  border-radius:var(--radius);
  padding:18px;
  transition:transform .15s ease, box-shadow .15s ease;
}
.card-producto:hover{ transform:translateY(-3px); box-shadow:var(--shadow); }
.card-imagen{
  width:100%;
  height:140px;
  object-fit:cover;
  border-radius:6px;
  display:block;
  margin-bottom:12px;
  background:#F0F1F3;
}
.card-producto .cat{
  font-family:var(--font-mono);
  font-size:10.5px;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--teal-dim);
  background:#EAFBF6;
  display:inline-block;
  padding:3px 8px;
  border-radius:4px;
  margin-bottom:10px;
}
.card-producto h3{ font-size:16px; margin-bottom:6px; }
.card-producto p{ font-size:13px; color:#6B7280; margin-bottom:14px; min-height:34px; }
.card-producto .precio{
  font-family:var(--font-mono);
  font-size:18px;
  font-weight:700;
  color:var(--graphite-900);
}
.card-producto .stock{
  font-size:11.5px;
  color:#8A929B;
  margin-top:3px;
}
.card-producto button{
  width:100%;
  margin-top:12px;
  padding:9px;
  background:var(--graphite-900);
  color:var(--white);
  border:none;
  border-radius:6px;
  font-size:13px;
  font-weight:600;
}
.card-producto button:hover{ background:var(--teal-dim); }

.empty-state{
  text-align:center;
  padding:60px 20px;
  color:#8A929B;
}

/* ============================================================
   PANEL DE ADMINISTRADOR
   ============================================================ */
.admin-shell{ display:grid; grid-template-columns:250px 1fr; min-height:100vh; }
@media (max-width:800px){ .admin-shell{ grid-template-columns:1fr; } }

.admin-sidebar{
  background:var(--graphite-950);
  color:var(--ink);
  padding:26px 20px;
  display:flex;
  flex-direction:column;
  gap:26px;
}
.admin-sidebar .brand{
  display:flex; align-items:center; gap:9px;
  font-family:var(--font-display); font-weight:700; font-size:18px;
}
.admin-sidebar .brand .dot{
  width:10px;height:10px;background:var(--teal);transform:rotate(45deg);border-radius:2px;
}
.admin-sidebar nav{ display:flex; flex-direction:column; gap:4px; }
.admin-sidebar nav a{
  padding:10px 12px;
  border-radius:7px;
  font-size:14px;
  color:var(--ink-dim);
  font-weight:500;
}
.admin-sidebar nav a:hover{ background:var(--graphite-800); color:var(--ink); }
.admin-sidebar nav a.active{ background:var(--teal); color:var(--graphite-950); font-weight:700; }
.admin-sidebar .salir{
  margin-top:auto;
  padding:10px 12px;
  border-radius:7px;
  background:var(--graphite-800);
  color:var(--ink);
  font-size:13.5px;
  text-align:center;
}
.admin-sidebar .salir:hover{ background:var(--red); }

.admin-main{ padding:30px 36px; }
.admin-header{
  display:flex; justify-content:space-between; align-items:flex-start;
  margin-bottom:24px;
}
.admin-header h1{ font-size:24px; margin-bottom:4px; }
.admin-header p{ color:#8A929B; font-size:13.5px; }

.stat-row{ display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:16px; margin-bottom:28px; }
.stat-card{
  background:var(--white); border:1px solid #E7E9EC; border-radius:var(--radius); padding:18px;
}
.stat-card .n{ font-family:var(--font-mono); font-size:26px; font-weight:700; }
.stat-card .l{ font-size:12px; color:#8A929B; text-transform:uppercase; letter-spacing:.05em; }

.panel{
  background:var(--white); border:1px solid #E7E9EC; border-radius:var(--radius);
  padding:24px; margin-bottom:24px;
}
.panel h2{ font-size:16px; margin-bottom:18px; }

.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:14px 18px; }
.form-grid .full{ grid-column:1 / -1; }
@media (max-width:600px){ .form-grid{ grid-template-columns:1fr; } }

.btn-secundario{
  padding:10px 16px;
  background:transparent;
  border:1.5px solid var(--graphite-900);
  color:var(--graphite-900);
  border-radius:7px;
  font-weight:600;
  font-size:13.5px;
}
.btn-secundario:hover{ background:var(--graphite-900); color:var(--white); }

table.tabla-admin{ width:100%; border-collapse:collapse; font-size:13.5px; }
table.tabla-admin th{
  text-align:left; padding:10px 12px; color:#8A929B; font-size:11.5px;
  text-transform:uppercase; letter-spacing:.05em; border-bottom:1px solid #E7E9EC;
}
table.tabla-admin td{ padding:12px; border-bottom:1px solid #F0F1F3; }
table.tabla-admin tr:hover td{ background:#FAFBFC; }
.badge-stock{
  font-family:var(--font-mono); font-size:11.5px; padding:2px 8px; border-radius:20px;
  background:#EAFBF6; color:var(--teal-dim);
}
.badge-stock.bajo{ background:#FFF1E5; color:#B3651C; }
.acciones-tabla button{
  border:none; background:none; font-size:13px; color:var(--teal-dim); font-weight:600; margin-right:10px;
}
.acciones-tabla button.eliminar{ color:var(--red); }
.acciones-tabla button.rechazar{ color:var(--red); }
.acciones-tabla button.aprobar{ color:var(--teal-dim); }

/* ============================================================
   BADGE DEL CARRITO (navbar)
   ============================================================ */
.navbar nav a#linkCarrito,
.navbar nav a[href="carrito.php"]{
  position:relative;
}
.badge-carrito{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:18px;
  height:18px;
  padding:0 5px;
  margin-left:6px;
  border-radius:20px;
  background:var(--teal);
  color:var(--graphite-950);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  vertical-align:middle;
}

/* ============================================================
   BOTONES DE ACCIÓN EN LAS TARJETAS DE PRODUCTO
   ============================================================ */
.acciones-card{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-top:12px;
}
.acciones-card .ver-detalle{
  width:100%;
  padding:9px;
  background:transparent;
  border:1.5px solid var(--graphite-900);
  color:var(--graphite-900);
  border-radius:6px;
  font-size:13px;
  font-weight:600;
}
.acciones-card .ver-detalle:hover{ background:var(--graphite-900); color:var(--white); }
.acciones-card .btn-agregar{
  width:100%;
  padding:9px;
  background:var(--teal-dim);
  color:var(--white);
  border:none;
  border-radius:6px;
  font-size:13px;
  font-weight:600;
}
.acciones-card .btn-agregar:hover{ background:var(--teal); }
.acciones-card .btn-agregar:disabled{ background:#C7CBD1; cursor:not-allowed; }

/* ============================================================
   MODAL DE DETALLES DEL PRODUCTO
   ============================================================ */
.modal-overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(15,18,22,0.55);
  z-index:100;
  align-items:center;
  justify-content:center;
  padding:20px;
}
.modal-overlay.abierto{ display:flex; }
.modal-caja{
  position:relative;
  background:var(--white);
  border-radius:var(--radius);
  max-width:440px;
  width:100%;
  padding:32px;
  box-shadow:var(--shadow);
}
.modal-imagen{
  width:100%;
  height:200px;
  object-fit:cover;
  border-radius:8px;
  display:block;
  margin-bottom:16px;
  background:#F0F1F3;
}
.modal-caja .cat{
  font-family:var(--font-mono);
  font-size:10.5px;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--teal-dim);
  background:#EAFBF6;
  display:inline-block;
  padding:3px 8px;
  border-radius:4px;
  margin-bottom:12px;
}
.modal-caja h2{ font-size:22px; margin-bottom:10px; }
.modal-precio{ font-family:var(--font-mono); font-size:22px; font-weight:700; color:var(--graphite-900); margin-bottom:4px; }
.modal-stock{ font-size:13px; color:#8A929B; margin-bottom:16px; }
.modal-descripcion{ font-size:14px; color:#4B5157; line-height:1.6; margin-bottom:22px; }
.modal-cerrar{
  position:absolute;
  top:14px; right:14px;
  width:30px; height:30px;
  border:none;
  background:#F0F1F3;
  border-radius:50%;
  font-size:18px;
  line-height:1;
  color:var(--graphite-900);
}
.modal-cerrar:hover{ background:var(--red); color:var(--white); }

/* ============================================================
   MÉTODOS DE PAGO (carrito.php)
   ============================================================ */
.metodos-pago{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(200px,1fr));
  gap:12px;
}
.metodo-card{
  display:flex;
  align-items:center;
  gap:10px;
  border:1.5px solid #DDE1E6;
  border-radius:8px;
  padding:14px;
  cursor:pointer;
  font-size:13.5px;
  font-weight:600;
  transition:border-color .15s ease, background .15s ease;
}
.metodo-card:has(input:checked){
  border-color:var(--teal);
  background:#EAFBF6;
}
.metodo-card input{ accent-color:var(--teal-dim); }

/* ============================================================
   PERFIL DE USUARIO
   ============================================================ */
.perfil-encabezado{
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}
.avatar-wrap{
  position:relative;
  width:84px;
  height:84px;
  flex-shrink:0;
}
.avatar-img{
  width:84px;
  height:84px;
  max-width:84px;
  max-height:84px;
  border-radius:50%;
  object-fit:cover;
  border:3px solid var(--graphite-900);
  display:block;
  overflow:hidden;
}
.avatar-placeholder{
  width:84px;
  height:84px;
  border-radius:50%;
  background:var(--graphite-900);
  color:var(--teal);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-display);
  font-size:28px;
  font-weight:700;
}
.avatar-editar{
  position:absolute;
  bottom:-2px;
  left:50%;
  transform:translateX(-50%);
  background:var(--teal-dim);
  color:var(--white);
  font-size:10px;
  font-weight:600;
  padding:3px 9px;
  border-radius:20px;
  white-space:nowrap;
  cursor:pointer;
  box-shadow:0 2px 6px rgba(15,18,22,0.25);
}
.avatar-editar:hover{ background:var(--teal); }
.perfil-info-basica h2{ font-size:19px; margin-bottom:6px; }
.perfil-desde{ display:block; color:#8A929B; font-size:12.5px; margin-top:6px; }
.perfil-mensaje-foto{ font-size:12.5px; margin-top:6px; min-height:16px; }
.perfil-separador{ border:none; border-top:1px solid #E7E9EC; margin:22px 0; }

/* ============================================================
   LOGO ANIMADO (reemplaza el .dot en el brand)
   ============================================================ */
.logo-brand{
  width:34px;
  height:34px;
  object-fit:contain;
  border-radius:50%;
  display:block;
  transform-origin:center center;
  animation: logoEntrada .7s cubic-bezier(.34,1.56,.64,1) both,
             logoPulso 3.2s ease-in-out 0.7s infinite;
  transition: transform .25s ease, filter .25s ease;
  cursor:default;
}
.logo-brand:hover{
  transform:scale(1.12) rotate(-6deg);
  filter:drop-shadow(0 0 10px rgba(0,194,168,.75));
}
.logo-brand--grande{
  width:76px;
  height:76px;
}

@keyframes logoEntrada{
  0%{ opacity:0; transform:scale(.3) rotate(-35deg); }
  70%{ opacity:1; transform:scale(1.08) rotate(4deg); }
  100%{ opacity:1; transform:scale(1) rotate(0deg); }
}
@keyframes logoPulso{
  0%, 100%{ filter:drop-shadow(0 0 0 rgba(0,194,168,0)); }
  50%{ filter:drop-shadow(0 0 7px rgba(0,194,168,.55)); }
}

@media (prefers-reduced-motion: reduce){
  .logo-brand{ animation:none; }
}

/* ============================================================
   AVISO "VIENDO COMO CLIENTE" (para el admin)
   ============================================================ */
.aviso-modo-cliente{
  background:var(--amber);
  color:var(--graphite-950);
  text-align:center;
  padding:10px 20px;
  font-size:13px;
  font-weight:600;
}
.aviso-modo-cliente a{
  margin-left:10px;
  text-decoration:underline;
  font-weight:700;
}

/* ============================================================
   FILTRO DE SOLICITUDES DE ADMINISTRADOR
   ============================================================ */
.filtro-tabs{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom:20px;
}
.filtro-tab{
  padding:8px 16px;
  border-radius:20px;
  border:1.5px solid #DDE1E6;
  background:var(--white);
  font-family:inherit;
  font-size:13px;
  font-weight:600;
  color:#6B7280;
  cursor:pointer;
  transition:background .15s ease, border-color .15s ease, color .15s ease;
}
.filtro-tab:hover{ border-color:var(--teal); color:var(--graphite-900); }
.filtro-tab.activo{
  background:var(--graphite-900);
  border-color:var(--graphite-900);
  color:var(--white);
}

.badge-estatus{
  font-family:var(--font-mono);
  font-size:11px;
  padding:3px 10px;
  border-radius:20px;
  text-transform:uppercase;
  letter-spacing:.03em;
}
.badge-estatus-pendiente{ background:#FFF1E5; color:#B3651C; }
.badge-estatus-activo{ background:#EAFBF6; color:var(--teal-dim); }
.badge-estatus-rechazado{ background:#FFF1F1; color:#B3232B; }

.acciones-tabla button.revocar{ color:var(--red); }
.acciones-tabla button.reactivar{ color:var(--teal-dim); }

/* ============================================================
   ASESORÍAS
   ============================================================ */
.lista-asesorias{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.tarjeta-asesoria{
  background:var(--white);
  border:1px solid #E7E9EC;
  border-radius:var(--radius);
  padding:20px;
  font-size:14px;
}
.tarjeta-asesoria-encabezado{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:10px;
}
.respuesta-asesoria{
  margin-top:14px;
  padding:14px;
  background:#EAFBF6;
  border-radius:8px;
  border:1px solid #BEEFE3;
  font-size:13.5px;
}
.respuesta-asesoria strong{ color:var(--teal-dim); }
.respuesta-asesoria p{ margin-top:6px; color:var(--graphite-900); }

/* ============================================================
   ANIMACIÓN DE ENTRADA (splash) — solo en index.html
   ============================================================ */
.intro-overlay{
  position:fixed;
  inset:0;
  z-index:300;
  background:var(--graphite-950);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  transition:opacity .6s ease, visibility .6s ease;
}
.intro-overlay::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:36px 36px;
  opacity:.3;
}
.intro-overlay.oculto{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}
.intro-contenido{
  position:relative;
  z-index:1;
  text-align:center;
  padding:0 24px;
}
.intro-titulo{
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(44px, 9vw, 96px);
  letter-spacing:-0.02em;
  opacity:0;
  animation:introTitulo 1s cubic-bezier(.22,1,.36,1) .1s forwards;
}
.intro-teach{ color:var(--ink); }
.intro-forge{ color:var(--teal); }
.intro-frase{
  opacity:0;
  color:var(--ink-dim);
  font-family:var(--font-mono);
  font-size:14px;
  letter-spacing:.1em;
  text-transform:uppercase;
  margin-top:16px;
  animation:introFrase .8s ease .85s forwards;
}
@keyframes introTitulo{
  0%{ opacity:0; transform:translateY(26px) scale(.92); }
  100%{ opacity:1; transform:translateY(0) scale(1); }
}
@keyframes introFrase{
  from{ opacity:0; transform:translateY(10px); }
  to{ opacity:1; transform:translateY(0); }
}
@media (prefers-reduced-motion: reduce){
  .intro-titulo, .intro-frase{ animation:none; opacity:1; }
}

.miniatura-producto{
  width:44px;
  height:44px;
  border-radius:8px;
  object-fit:cover;
  display:block;
  border:1px solid #E7E9EC;
}
.miniatura-vacia{
  background:#F0F1F3;
}