@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Caveat:wght@400;600;700&display=swap');

:root {
  /* Paleta Luminosa, Cálida & Editorial (Cero opaco) */
  --bg-main: #ffffff;
  --bg-surface: #ffffff;
  --bg-sand: #faf7f2;
  --bg-sand-dark: #f3ece1;
  --color-ink: #161210;
  --color-ink-light: #443831;
  --color-ink-muted: #6b5e55;
  --color-henna: #a63c22;
  --color-henna-dark: #872e18;
  --color-henna-soft: #d16143;
  --color-gold: #c9862c;
  --color-clay: #b85b42;
  --color-sage: #4e6347;
  --color-border: #ede5da;
  --color-border-dark: #ded3c4;

  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-hand: 'Caveat', cursive;

  --shadow-subtle: 0 4px 20px rgba(22, 18, 16, 0.04);
  --shadow-soft: 0 10px 30px rgba(22, 18, 16, 0.06);
  --shadow-card: 0 14px 34px rgba(22, 18, 16, 0.08);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background-color: var(--bg-main);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  line-height: 1.65;
  background-color: var(--bg-main);
}

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

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

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

/* Textura luminosa y limpia */
.bg-paper-texture {
  background-color: #ffffff;
}

/* Estilo Polaroid / Fotografía Real */
.polaroid-card {
  background: #ffffff;
  padding: 12px 12px 24px 12px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.polaroid-card:hover {
  transform: translateY(-4px) rotate(0deg) !important;
  box-shadow: 0 20px 40px rgba(22, 18, 16, 0.14);
}

/* Botones Humanos y Elegantes (Cero efectos IA) */
.btn-primary {
  background-color: var(--color-henna);
  color: #ffffff;
  font-weight: 600;
  padding: 0.9rem 2rem;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: all 0.25s ease;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-size: 0.95rem;
}

.btn-primary:hover {
  background-color: var(--color-henna-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(154, 68, 48, 0.25);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-border-dark);
  font-weight: 500;
  padding: 0.85rem 1.8rem;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: all 0.25s ease;
  text-decoration: none;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-outline:hover {
  background-color: var(--bg-sand);
  border-color: var(--color-ink);
}

/* Etiquetas Editoriales */
.tag-editorial {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-henna);
  font-weight: 600;
  display: inline-block;
}

/* Línea divisoria orgánica */
.divider-organic {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: 3rem 0;
}

/* Modal y Notificaciones */
.toast-notification {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--color-ink);
  color: #ffffff;
  padding: 0.9rem 1.4rem;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  font-size: 0.85rem;
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(31, 24, 21, 0.55);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content-box {
  background: #ffffff;
  border-radius: 20px;
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  border: 1px solid var(--color-border);
}

/* Certificado Limpio y Elegante */
.certificate-frame {
  background: #ffffff;
  border: 2px solid var(--color-border-dark);
  position: relative;
  padding: 3.5rem 2.5rem;
  border-radius: 4px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
  max-width: 800px;
  margin: 0 auto;
}

.certificate-frame::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid var(--color-border);
  pointer-events: none;
}

@media print {
  body * {
    visibility: hidden;
  }
  #certificate-print-area, #certificate-print-area * {
    visibility: visible;
  }
  #certificate-print-area {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    margin: 0;
    padding: 2rem;
  }
  .no-print {
    display: none !important;
  }
}
/* ==================== LIENZO DE PRÁCTICA INTERACTIVO ==================== */
.canvas-container {
  position: relative;
  width: 100%;
  max-width: 520px;
  height: 380px;
  background: #faf7f2;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  touch-action: none;
}

#henna-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

/* ==================== CALCULADORA DE INGRESOS ==================== */
.slider-custom {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 9999px;
  background: #ede5da;
  outline: none;
}

.slider-custom::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-henna);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(166, 60, 34, 0.35);
  transition: transform 0.15s ease;
}

.slider-custom::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

/* ==================== BOTÓN FLOTANTE WHATSAPP ==================== */
.whatsapp-floating-btn {
  position: fixed;
  bottom: 18px;
  right: 16px;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25d366;
  color: #ffffff;
  width: 46px;
  height: 46px;
  border-radius: 9999px;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.38);
  font-size: 1.25rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.whatsapp-floating-btn:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.48);
  background: #20ba5a;
}

@media (min-width: 640px) {
  .whatsapp-floating-btn {
    bottom: 24px;
    right: 24px;
    width: auto;
    height: auto;
    padding: 0.75rem 1.25rem;
    font-size: 0.85rem;
    gap: 0.6rem;
  }
}