/* GLOBAL STYLES & BASE SETUP */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--color-cacao);
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Compensación para anclas bajo el header sticky */
section[id],
[id^="seccion"],
[id$="-seccion"] {
  scroll-margin-top: 110px;
}

/* Shade Finder — muestras de tono de piel */
.skin-swatch {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.12);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

label:hover .skin-swatch {
  transform: scale(1.08);
}

/* Shade Finder — muestras de subtono (venas) */
.subtone-veins {
  display: block;
  width: 52px;
  height: 34px;
  border-radius: 8px;
  margin: 0 auto 10px auto;
  border: 1px solid rgba(0, 0, 0, 0.12);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  background-color: var(--bg-main);
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
}

.section-padding {
  padding: 100px 0;
}

.text-center {
  text-align: center;
}

.font-serif {
  font-family: var(--font-serif);
}

/* Typography Classes */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--color-cacao);
  line-height: 1.15;
}

.section-title {
  font-size: 2.8rem;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-sub);
  max-width: 600px;
  margin: 0 auto 50px auto;
}

.tag-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-rose);
  font-weight: 700;
  margin-bottom: 8px;
  display: inline-block;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-rose);
  color: var(--bg-white);
  padding: 16px 36px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  box-shadow: 0 4px 15px rgba(152, 93, 98, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-rose-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(152, 93, 98, 0.35);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-cacao);
  color: var(--bg-main);
  padding: 16px 36px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.btn-secondary:hover {
  background-color: var(--color-cacao-light);
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--color-cacao);
  color: var(--color-cacao);
  padding: 14px 32px;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.btn-outline:hover {
  background-color: var(--color-cacao);
  color: var(--bg-white);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.badge-new {
  background-color: var(--color-cacao);
  color: var(--bg-white);
}

.badge-sale {
  background-color: var(--color-rose);
  color: var(--bg-white);
}

.badge-champagne {
  background-color: var(--color-champagne);
  color: var(--bg-white);
}

/* Toast Notifications */
#toastContainer {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  background-color: var(--color-cacao);
  color: var(--bg-white);
  padding: 16px 24px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  animation: toastIn 350ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
  border-left: 4px solid var(--color-nude);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Modal Base */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(62, 42, 40, 0.5);
  backdrop-filter: blur(4px);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  max-width: 650px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  overflow-x: hidden;
  box-sizing: border-box;
  box-shadow: var(--shadow-hover);
  transform: translateY(20px);
  transition: transform var(--transition-base);
  position: relative;
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 1.5rem;
  color: var(--color-text-sub);
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-cacao);
}

/* Page Loading Screen */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-main);
  z-index: 20000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: opacity 500ms ease, visibility 500ms ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader-logo {
  width: 220px;
  height: auto;
  opacity: 0;
  animation: loaderFadeIn 700ms ease forwards;
}

.page-loader-line {
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-nude), var(--color-champagne), var(--color-nude));
  border-radius: 2px;
  animation: loaderLine 900ms ease forwards;
}

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

@keyframes loaderLine {
  from { width: 0; }
  to { width: 160px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-loader,
  .page-loader-logo,
  .page-loader-line {
    animation: none;
    opacity: 1;
    width: 160px;
  }
}

/* ============================================================
   SHADE FINDER — correcciones de diseño del modal
   ============================================================ */

/* Jerarquía tipográfica: separación etiqueta/título */
.shade-wizard-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-rose);
  font-weight: 700;
  margin-bottom: 10px;
  display: block;
}

.shade-wizard-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-cacao);
  margin-bottom: 8px;
}

.shade-wizard-sub {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  margin-bottom: 24px;
  line-height: 1.5;
}

/* Botones de tipo de producto: suaves, de alta cosmética */
.shade-type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 26px;
}

.shade-type-btn {
  width: 100%;
  padding: 22px 12px;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  background-color: var(--bg-white);
  color: var(--color-cacao);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  text-align: center;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.shade-type-btn svg {
  display: block;
  margin: 0 auto 10px auto;
  color: var(--color-rose);
}

.shade-type-btn:hover {
  border-color: var(--color-nude);
  background-color: var(--bg-main);
  transform: translateY(-2px);
}

.shade-type-btn.active {
  border-color: var(--color-rose);
  background-color: var(--bg-main);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

/* Opciones de subtono: columna vertical, sin solape */
.shade-subtone-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 26px;
}

.shade-subtone-btn {
  width: 100%;
  padding: 20px 10px;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  background-color: var(--bg-white);
  cursor: pointer;
  text-align: center;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.shade-subtone-btn:hover {
  border-color: var(--color-nude);
  background-color: var(--bg-main);
}

.shade-subtone-btn.active {
  border-color: var(--color-rose);
  background-color: var(--bg-main);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

.shade-subtone-btn .subtone-swatch {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  margin: 0 auto 12px auto;
  border: 1px solid rgba(0, 0, 0, 0.12);
}

.shade-subtone-btn .subtone-name {
  display: block;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--color-cacao);
  margin-bottom: 4px;
}

.shade-subtone-btn .subtone-desc {
  display: block;
  font-size: 0.72rem;
  color: var(--color-text-sub);
  line-height: 1.35;
}

/* Opciones de tono de piel (paso 2): fila con swatch */
.shade-tone-row {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border-light);
  border-radius: 12px;
  background-color: var(--bg-white);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.shade-tone-row:hover {
  border-color: var(--color-nude);
  background-color: var(--bg-main);
}

.shade-tone-row.active {
  border-color: var(--color-rose);
  background-color: var(--bg-main);
}

.shade-tone-row .skin-swatch {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.12);
  flex-shrink: 0;
}

.shade-tone-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 26px;
}

/* Footer del wizard: botones de acción separados */
.shade-wizard-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 28px;
}

.shade-wizard-footer .btn-primary,
.shade-wizard-footer .btn-outline {
  width: 100%;
  padding: 14px 20px;
  font-size: 0.82rem;
  border-radius: 9999px;
}

/* En móvil apilar el footer */
@media (max-width: 767px) {
  .shade-type-grid,
  .shade-subtone-grid {
    grid-template-columns: 1fr;
  }

  .shade-wizard-footer {
    grid-template-columns: 1fr;
  }

  .shade-wizard-title {
    font-size: 1.35rem;
  }
}