/* ==========================================================================
   EL AULA — Cerezas en la Nieve
   Tipografias servidas desde el propio servidor: la web no llama a nadie fuera.
   ========================================================================== */

@font-face { font-family:'CN Inter'; font-style:normal; font-weight:400; font-display:swap;
  src:url('fuentes/inter-400-latin.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+FEFF,U+FFFD; }
@font-face { font-family:'CN Inter'; font-style:normal; font-weight:400; font-display:swap;
  src:url('fuentes/inter-400-latin-ext.woff2') format('woff2');
  unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family:'CN Inter'; font-style:normal; font-weight:500; font-display:swap;
  src:url('fuentes/inter-500-latin.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+FEFF,U+FFFD; }
@font-face { font-family:'CN Inter'; font-style:normal; font-weight:500; font-display:swap;
  src:url('fuentes/inter-500-latin-ext.woff2') format('woff2');
  unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family:'CN Inter'; font-style:normal; font-weight:700; font-display:swap;
  src:url('fuentes/inter-700-latin.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+FEFF,U+FFFD; }
@font-face { font-family:'CN Inter'; font-style:normal; font-weight:700; font-display:swap;
  src:url('fuentes/inter-700-latin-ext.woff2') format('woff2');
  unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family:'CN Playfair'; font-style:italic; font-weight:400; font-display:swap;
  src:url('fuentes/playfairdisplay-400i-latin.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+FEFF,U+FFFD; }
@font-face { font-family:'CN Playfair'; font-style:italic; font-weight:400; font-display:swap;
  src:url('fuentes/playfairdisplay-400i-latin-ext.woff2') format('woff2');
  unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20CF,U+2113,U+2C60-2C7F,U+A720-A7FF; }

/* -------------------------------------------------------------- la paleta */
.cn-aula {
  --oscuro:  #061218;
  --dorado:  #C4963E;
  --crema:   #FAF8F5;
  --tinta:   #2A2A2A;
  --suave:   rgba(6, 18, 24, .55);
  --borde:   rgba(6, 18, 24, .10);

  max-width: 980px;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
  font-family: 'CN Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--tinta);
  -webkit-font-smoothing: antialiased;
}

/* ------------------------------------------------------------- cabecera */
.cn-aula-cabecera { text-align: center; margin-bottom: 3.5rem; }

.cn-aula-cabecera h1 {
  font-size: clamp(1.7rem, 4.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--oscuro);
  margin: 0 0 .75rem;
  line-height: 1.15;
}

.cn-aula-lema {
  font-family: 'CN Playfair', Georgia, serif;
  font-style: italic;
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  color: var(--suave);
  max-width: 34ch;
  margin: 0 auto;
  line-height: 1.55;
}

.cn-aula-titulo {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--suave);
  margin: 0 0 1.5rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--borde);
}

/* -------------------------------------------------------------- tarjetas */
.cn-aula-tarjetas {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.75rem;
}

.cn-aula-tarjeta {
  background: #fff;
  border: 1px solid var(--borde);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease;
}

.cn-aula-tarjeta:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(6, 18, 24, .09);
}

.cn-aula-tarjeta img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.cn-aula-texto {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .6rem;
  flex: 1;
}

.cn-aula-texto h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--oscuro);
  margin: 0;
  line-height: 1.25;
}

.cn-aula-texto > p {
  font-size: .88rem;
  color: var(--suave);
  margin: 0;
  line-height: 1.5;
}

/* -------------------------------------------------------------- el boton */
.cn-aula-boton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: auto;
  padding: .85rem 1.5rem;
  background: var(--oscuro);
  color: #fff !important;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background .2s ease;
}

.cn-aula-boton:hover,
.cn-aula-boton:focus-visible { background: var(--dorado); }

.cn-aula-estado {
  font-size: .7rem;
  color: var(--suave);
  margin: .25rem 0 0;
  letter-spacing: .02em;
}

.cn-aula-vacio {
  background: var(--crema);
  border: 1px solid var(--borde);
  border-radius: 16px;
  padding: 1.75rem;
  font-size: .92rem;
  color: var(--suave);
  line-height: 1.6;
}
.cn-aula-vacio a { color: var(--dorado); }

/* ------------------------------------------- el puente a la comunidad */
.cn-aula-puente {
  margin-top: 3.5rem;
  padding: 2rem 1.75rem;
  background: var(--crema);
  border: 1px solid var(--borde);
  border-radius: 20px;
  text-align: center;
}

.cn-aula-puente-texto {
  font-family: 'CN Playfair', Georgia, serif;
  font-style: italic;
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--suave);
  max-width: 42ch;
  margin: 0 auto 1.35rem;
}

.cn-aula-puente-boton {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.9rem;
  border: 1px solid var(--dorado);
  border-radius: 999px;
  color: var(--dorado) !important;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background .2s ease, color .2s ease;
}

.cn-aula-puente-boton:hover,
.cn-aula-puente-boton:focus-visible {
  background: var(--dorado);
  color: #fff !important;
}

/* ------------------------------------------------------------------ pie */
.cn-aula-pie {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.75rem;
  margin-top: 4rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--borde);
}

.cn-aula-pie a {
  font-size: .74rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--suave);
  text-decoration: none;
  transition: color .2s ease;
}
.cn-aula-pie a:hover { color: var(--dorado); }

/* ------------------------------------------------- formulario de entrada */
.cn-aula-entrada { max-width: 400px; }

.cn-aula-entrada h1 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--oscuro);
  text-align: center;
  margin: 0 0 1.75rem;
}

.cn-aula-aviso {
  background: var(--crema);
  border-left: 3px solid var(--dorado);
  border-radius: 0 10px 10px 0;
  padding: .9rem 1.1rem;
  font-size: .86rem;
  color: var(--tinta);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.cn-aula-entrada label {
  display: block;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--suave);
  margin-bottom: .4rem;
}

.cn-aula-entrada input[type="text"],
.cn-aula-entrada input[type="password"] {
  width: 100%;
  box-sizing: border-box;
  padding: .85rem 1rem;
  margin-bottom: 1.15rem;
  border: 1px solid var(--borde);
  border-radius: 12px;
  background: #fff;
  font-family: inherit;
  font-size: .95rem;
  color: var(--tinta);
}

.cn-aula-entrada input:focus {
  outline: none;
  border-color: var(--dorado);
  box-shadow: 0 0 0 3px rgba(196, 150, 62, .13);
}

.cn-aula-entrada .login-remember label {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
  font-size: .85rem;
  color: var(--suave);
  display: flex;
  align-items: center;
  gap: .5rem;
}

.cn-aula-entrada .login-submit input[type="submit"] {
  width: 100%;
  padding: .95rem;
  margin-top: .5rem;
  background: var(--oscuro);
  color: #fff;
  border: none;
  border-radius: 999px;
  font-family: inherit;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .2s ease;
}
.cn-aula-entrada .login-submit input[type="submit"]:hover { background: var(--dorado); }

.cn-aula-ayuda {
  text-align: center;
  margin-top: 1.5rem;
  font-size: .8rem;
  color: var(--suave);
}
.cn-aula-ayuda a { color: var(--suave); text-decoration: underline; }
.cn-aula-ayuda a:hover { color: var(--dorado); }

/* ---------------------------------------------------------------- movil */
@media (max-width: 600px) {
  .cn-aula { padding: 2rem 1rem 3rem; }
  .cn-aula-cabecera { margin-bottom: 2.5rem; }
  .cn-aula-tarjetas { gap: 1.25rem; }
  .cn-aula-pie { gap: 1.1rem; }
}

/* ------------------------------------------------ el avance por el camino */
/* Los tramos son las seis evaluaciones del Paisaje 1 y el final del tesoro.
   El Paisaje 2 no cuenta: no es un camino que se termina. */

.cn-aula-avance {
  margin: .1rem 0 1.15rem;
}

.cn-aula-barra {
  height: 5px;
  border-radius: 999px;
  background: rgba(6, 18, 24, .09);
  overflow: hidden;
}

.cn-aula-barra > span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #D8B057, var(--dorado));
  transition: width .8s cubic-bezier(.22, .61, .36, 1);
}

.cn-aula-avance-texto {
  margin: .45rem 0 0;
  font-size: .7rem;
  letter-spacing: .02em;
  color: var(--suave);
}

.cn-aula-seguir {
  display: inline-block;
  margin-top: .6rem;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--dorado) !important;
  border-bottom: 1px solid rgba(196, 150, 62, .35);
  padding-bottom: 2px;
  transition: border-color .25s ease;
}

.cn-aula-seguir:hover,
.cn-aula-seguir:focus-visible { border-bottom-color: var(--dorado); }