/* ==================== Consultorio Visual — Dra. Cristina Sanzana ==================== */
/* Marca Emabel: negro + dorado. Diseño clínico, táctil, sin hover-dependencia. */

:root {
  --fondo: #0d1117;
  --fondo-panel: #151b23;
  --fondo-tarjeta: #171d27;
  --borde: #2a3240;
  --dorado: #d4a04a;
  --dorado-suave: #e8c07d;
  --texto: #eef1f5;
  --texto-tenue: #a7b0bd;
  --radio: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  overflow-x: hidden; /* nunca scroll horizontal */
  background: var(--fondo);
  color: var(--texto);
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

button, select {
  font-family: inherit;
}

/* ==================== HEADER ==================== */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--borde);
  background: var(--fondo-panel);
  flex-wrap: wrap;
}

.app-header__brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.app-header__title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--dorado-suave);
  letter-spacing: 0.02em;
}

.app-header__subtitle {
  font-size: 0.95rem;
  color: var(--texto-tenue);
}

.btn-header {
  background: transparent;
  border: 1.5px solid var(--dorado);
  color: var(--dorado-suave);
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 48px;
}

.btn-header:active {
  background: var(--dorado);
  color: #14100a;
}

/* ==================== LAYOUT GENERAL ==================== */
#app {
  width: 100%;
  min-height: calc(100vh - 76px);
}

.pantalla {
  display: none;
  width: 100%;
  padding: 28px 24px 40px;
}

.pantalla--activa {
  display: block;
}

.titulo-seccion {
  font-size: 1.9rem;
  font-weight: 700;
  margin: 0 0 6px;
  text-align: center;
}

.subtitulo-seccion {
  font-size: 1.05rem;
  color: var(--texto-tenue);
  text-align: center;
  margin: 0 0 28px;
}

/* ==================== PANTALLA 1: SELECTOR ==================== */
.grid-tarjetas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  max-width: 1200px;
  margin: 0 auto;
}

.tarjeta-tratamiento {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  background: var(--fondo-tarjeta);
  border: 1.5px solid var(--borde);
  border-radius: var(--radio);
  padding: 32px 22px;
  cursor: pointer;
  min-height: 260px;
  justify-content: center;
  transition: border-color 0.15s ease, transform 0.1s ease;
}

.tarjeta-tratamiento:active {
  border-color: var(--dorado);
  transform: scale(0.98);
  background: #1c2431;
}

.tarjeta-tratamiento__icono {
  width: 64px;
  height: 64px;
  margin-bottom: 4px;
}

.tarjeta-tratamiento__icono svg {
  width: 100%;
  height: 100%;
}

.tarjeta-tratamiento__nombre {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--texto);
}

.tarjeta-tratamiento__desc {
  font-size: 1rem;
  color: var(--texto-tenue);
}

.tarjeta-tratamiento__precio {
  margin-top: 8px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dorado-suave);
}

.tarjeta-tratamiento__precio em {
  display: block;
  font-style: normal;
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--texto-tenue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

.pie-marca {
  margin-top: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--texto-tenue);
  font-size: 0.85rem;
}

.pie-marca__cubo {
  width: 16px;
  height: 16px;
}

/* ==================== PANTALLA 2: VISOR ==================== */
.visor-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 22px;
  max-width: 1400px;
  margin: 0 auto;
  align-items: start;
}

.visor-3d {
  position: relative;
  background: var(--fondo-tarjeta);
  border: 1.5px solid var(--borde);
  border-radius: var(--radio);
  overflow: hidden;
  min-height: 420px;
}

.model-viewer-container {
  width: 100%;
  height: 480px;
  position: relative;
}

.model-viewer-container model-viewer {
  width: 100%;
  height: 100%;
  --poster-color: transparent;
}

.placeholder-modelo {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  padding: 24px;
  color: var(--texto-tenue);
  background: var(--fondo-tarjeta);
}

.placeholder-modelo__icono {
  width: 48px;
  height: 48px;
  border: 3px solid var(--borde);
  border-top-color: var(--dorado);
  border-radius: 50%;
  animation: girar 1s linear infinite;
}

@keyframes girar {
  to { transform: rotate(360deg); }
}

.placeholder-modelo__texto {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--texto);
}

.placeholder-modelo__sub {
  font-size: 0.9rem;
  max-width: 320px;
}

.btn-volver {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(13, 17, 23, 0.85);
  border: 1.5px solid var(--borde);
  color: var(--texto);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
}

.btn-volver:active {
  border-color: var(--dorado);
}

.btn-ar {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--dorado);
  color: #14100a;
  border: none;
  padding: 14px 26px;
  border-radius: 12px;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  min-height: 52px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.btn-ar:active {
  background: var(--dorado-suave);
}

.panel-info {
  background: var(--fondo-panel);
  border: 1.5px solid var(--borde);
  border-radius: var(--radio);
  padding: 26px 24px;
}

.panel-info__nombre {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--dorado-suave);
}

.panel-info__precio {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--texto);
  margin: 0 0 20px;
}

.panel-info__bloque {
  margin-bottom: 20px;
}

.panel-info__bloque h3 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--dorado);
  margin: 0 0 8px;
}

.panel-info__bloque p {
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--texto);
  margin: 0;
}

.lista-pasos {
  margin: 0;
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lista-pasos li {
  font-size: 1.02rem;
  line-height: 1.5;
}

/* ==================== PANTALLA 3: COMPARAR ==================== */
.comparar-header {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.comparar-header .btn-volver {
  position: static;
  display: inline-flex;
  margin-bottom: 18px;
  background: transparent;
}

.titulo-seccion--comparar {
  text-align: center;
}

.comparar-selectores {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto 28px;
  flex-wrap: wrap;
}

.select-comparar {
  background: var(--fondo-tarjeta);
  border: 1.5px solid var(--borde);
  color: var(--texto);
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 1.02rem;
  min-height: 48px;
  min-width: 220px;
}

.comparar-vs {
  font-weight: 700;
  color: var(--dorado);
  font-size: 1.05rem;
}

.grid-comparar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  max-width: 1200px;
  margin: 0 auto;
}

.comparar-columna {
  background: var(--fondo-tarjeta);
  border: 1.5px solid var(--borde);
  border-radius: var(--radio);
  padding: 18px;
  text-align: center;
}

.model-viewer-container--comparar {
  height: 280px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 14px;
}

.comparar-nombre {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dorado-suave);
  margin: 0 0 4px;
}

.comparar-precio {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 10px;
}

.comparar-desc {
  font-size: 0.98rem;
  color: var(--texto-tenue);
  line-height: 1.5;
  margin: 0;
}

/* ==================== RESPONSIVE ==================== */

/* Tablet vertical (~820px) y celulares grandes */
@media (max-width: 900px) {
  .grid-tarjetas {
    grid-template-columns: 1fr;
    max-width: 560px;
  }

  .visor-layout {
    grid-template-columns: 1fr;
  }

  .model-viewer-container {
    height: 360px;
  }

  .grid-comparar {
    grid-template-columns: 1fr;
  }

  .app-header {
    justify-content: center;
    text-align: center;
  }

  .app-header__brand {
    align-items: center;
  }
}

/* Celular (~390px) */
@media (max-width: 480px) {
  .pantalla {
    padding: 20px 14px 32px;
  }

  .titulo-seccion {
    font-size: 1.5rem;
  }

  .tarjeta-tratamiento {
    min-height: 200px;
    padding: 24px 16px;
  }

  .model-viewer-container {
    height: 300px;
  }

  .panel-info {
    padding: 20px 16px;
  }

  .btn-ar {
    padding: 12px 20px;
    font-size: 0.98rem;
  }

  .select-comparar {
    min-width: 0;
    width: 100%;
  }

  .comparar-selectores {
    flex-direction: column;
  }
}