/* ============================================================
   style.css - mama.carolinaherreramonteza.com
   Requisitos: 1.3, 1.5, 2.1, 2.2, 2.4, 2.5, 2.6, 3.2, 3.6,
               4.1, 4.2, 4.3, 4.6, 7.2, 7.3, 7.4, 7.6,
               10.1, 10.2, 10.3, 10.4
   ============================================================ */

/* ============================================================
   1. VARIABLES CSS (Requisito 10.1)
   ============================================================ */
:root {
  /* Paleta de colores vividos — Día de la Madre */
  --color-rosa:    #E91E63;  /* magenta vibrante */
  --color-dorado:  #FFCA28;  /* ámbar dorado */
  --color-coral:   #FF5722;  /* naranja profundo */
  --color-violeta: #9C27B0;  /* púrpura festivo */
  --color-crema:   #FFF8E1;
  --color-texto:   #3D2B1F;
  --color-blanco:  #FFFFFF;

  /* Tipografia */
  --font-serif: "Playfair Display", Georgia, serif;
  --font-sans:  "Lato", "Helvetica Neue", Arial, sans-serif;

  /* Espaciado */
  --nav-height:      64px;
  --section-padding: 4rem 1.5rem;
  --border-radius:   8px;

  /* Transiciones (max 400ms - Requisito 10.4) */
  --transition-fast:   150ms ease;
  --transition-normal: 300ms ease;
  --transition-flip:   400ms ease;
}

/* ============================================================
   2. RESET Y BASE (Requisito 1.3)
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth; /* Requisito 1.5 */
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-crema);
  background-image: linear-gradient(160deg, #FFF8E1 0%, #FCE4EC 50%, #F3E5F5 100%);
  background-attachment: fixed;
  color: var(--color-texto);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ============================================================
   3. TIPOGRAFIA (Requisito 10.2)
   ============================================================ */
h1,
h2,
h3 {
  font-family: var(--font-serif);
  line-height: 1.2;
  color: var(--color-texto);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }

p  { font-size: 1rem; }

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

a:hover,
a:focus {
  color: var(--color-rosa);
  text-decoration: underline;
}

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

button {
  cursor: pointer;
  font-family: var(--font-sans);
  border: none;
  border-radius: var(--border-radius);
}

ul,
ol {
  list-style: none;
}

/* ============================================================
   4. NAVEGACION FIJA (Requisito 1.6)
   ============================================================ */
#main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0 1.5rem;
  background-color: rgba(255, 248, 225, 0.92); /* crema semi-transparente */
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 2px solid var(--color-rosa);
  box-shadow: 0 2px 8px rgba(61, 43, 31, 0.08);
}

#main-nav a {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-texto);
  padding: 0.4rem 0.75rem;
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast),
              color var(--transition-fast);
  white-space: nowrap;
}

#main-nav a:hover,
#main-nav a:focus {
  background-color: var(--color-rosa);
  color: var(--color-blanco);
  text-decoration: none;
  outline: 2px solid var(--color-coral);
  outline-offset: 2px;
}

#main-nav a.active {
  background-color: var(--color-coral);
  color: var(--color-blanco);
}

/* Offset para que las secciones no queden debajo del nav */
section {
  scroll-margin-top: var(--nav-height);
}


/* ============================================================
   5. HERO (Requisito 2.1, 2.2)
   ============================================================ */
#hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  /* Fallback for browsers that don't support background-image via style attr */
  filter: brightness(0.55);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem 1.5rem;
  max-width: 700px;
  color: var(--color-blanco);
}

.hero-content h1 {
  color: var(--color-blanco);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
  margin-bottom: 0.5rem;
}

.hero-decoration {
  display: block;
  font-size: 3rem;
  margin-bottom: 1rem;
  animation: floatPetal 3s ease-in-out infinite;
}

.hero-date {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--color-dorado);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
  margin-bottom: 0.75rem;
}

.hero-dedication {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-family: var(--font-serif);
  color: var(--color-crema);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
}

/* Fade-in animation (600ms ease-in) */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 600ms ease-in both;
}

.hero-content h1.fade-in       { animation-delay: 0ms; }
.hero-date.fade-in             { animation-delay: 200ms; }
.hero-dedication.fade-in       { animation-delay: 400ms; }

@keyframes floatPetal {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

/* ============================================================
   6. SECTION HEADERS (Requisito 2.4)
   ============================================================ */
.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-decoration {
  display: block;
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-coral);
  font-style: italic;
  margin-top: 0.5rem;
}

section {
  padding: var(--section-padding);
}

/* Alternating section backgrounds */
#galeria    { background-color: rgba(255, 255, 255, 0.85); }
#razones    { background: linear-gradient(180deg, rgba(255,248,225,0.9) 0%, rgba(252,228,236,0.9) 100%); }
#juegos     { background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, rgba(243,229,245,0.9) 100%); }
#sobre-mama { background: linear-gradient(180deg, rgba(255,248,225,0.9) 0%, rgba(255,243,224,0.9) 100%); }

/* ============================================================
   7. GALLERY (Requisito 2.5)
   ============================================================ */
.gallery-container {
  max-width: 1200px;
  margin: 0 auto;
}

.destination-group {
  margin-bottom: 3rem;
}

.destination-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-coral);
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--color-rosa);
  display: inline-block;
}

.destination-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (min-width: 600px) {
  .destination-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .destination-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.gallery-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: transform var(--transition-normal),
              box-shadow var(--transition-normal),
              opacity var(--transition-normal);
  border: 2px solid transparent;
}

.gallery-thumb:hover,
.gallery-thumb:focus {
  transform: scale(1.04);
  box-shadow: 0 6px 20px rgba(255, 112, 67, 0.35);
  border-color: var(--color-coral);
  outline: none;
}

/* ============================================================
   8. LIGHTBOX (Requisito 2.6)
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox[hidden] {
  display: none;
}

.lightbox-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.88);
  cursor: pointer;
}

.lightbox-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 95vw;
  max-height: 95vh;
}

.lightbox-image-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 80vw;
  max-height: 85vh;
}

#lightbox-img {
  max-width: 80vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--border-radius);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
  display: block;
}

.lightbox-error {
  color: var(--color-crema);
  font-style: italic;
  padding: 2rem;
  text-align: center;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  background-color: rgba(255, 248, 225, 0.15);
  color: var(--color-blanco);
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast),
              transform var(--transition-fast);
  flex-shrink: 0;
}

.lightbox-close:hover,
.lightbox-close:focus,
.lightbox-prev:hover,
.lightbox-prev:focus,
.lightbox-next:hover,
.lightbox-next:focus {
  background-color: var(--color-coral);
  transform: scale(1.1);
  outline: 2px solid var(--color-dorado);
  outline-offset: 2px;
}

.lightbox-close {
  position: absolute;
  top: -52px;
  right: 0;
}

/* ============================================================
   9. CARD GAME — 12 RAZONES (Requisito 3.2)
   ============================================================ */
.cards-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto 2rem;
}

@media (min-width: 768px) {
  .cards-container {
    grid-template-columns: repeat(4, 1fr);
  }
}

.card {
  perspective: 800px;
  cursor: pointer;
  min-height: 140px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 140px;
  transform-style: preserve-3d;
  transition: transform var(--transition-flip);
}

.card.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  text-align: center;
}

.card-front {
  background: linear-gradient(135deg, var(--color-violeta), var(--color-rosa), var(--color-coral));
  color: var(--color-blanco);
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  flex-direction: column;
  gap: 0.25rem;
  box-shadow: 0 4px 12px rgba(156, 39, 176, 0.35);
}

.card-front:hover {
  box-shadow: 0 6px 20px rgba(233, 30, 99, 0.55);
  transform: scale(1.03);
}

.card-back {
  background: linear-gradient(135deg, var(--color-crema), #ffe0b2);
  color: var(--color-texto);
  transform: rotateY(180deg);
  font-size: 0.88rem;
  line-height: 1.5;
  box-shadow: 0 4px 12px rgba(61, 43, 31, 0.15);
}

.celebration-message {
  text-align: center;
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--color-rosa), var(--color-dorado));
  border-radius: var(--border-radius);
  color: var(--color-texto);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: center;
  animation: fadeIn 600ms ease-in both;
}

.celebration-message[hidden] {
  display: none;
}

.cards-actions {
  text-align: center;
  margin-top: 1rem;
}

.btn-reset {
  background-color: var(--color-coral);
  color: var(--color-blanco);
  padding: 0.6rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast),
              transform var(--transition-fast);
  min-height: 44px;
}

.btn-reset:hover,
.btn-reset:focus {
  background-color: var(--color-rosa);
  transform: scale(1.04);
  outline: 2px solid var(--color-dorado);
  outline-offset: 2px;
}

/* ============================================================
   10. GAMES SECTION (Requisito 3.6)
   ============================================================ */
.game-section {
  max-width: 900px;
  margin: 0 auto 3.5rem;
  text-align: center;
}

.game-section h3 {
  margin-bottom: 0.4rem;
  color: var(--color-coral);
}

.game-description {
  color: var(--color-texto);
  font-style: italic;
  margin-bottom: 1.5rem;
}

/* Memory game */
.memory-game-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

@media (max-width: 480px) {
  .memory-game-container {
    grid-template-columns: repeat(4, 1fr);
    gap: 0.4rem;
  }
}

.memory-card {
  aspect-ratio: 1 / 1;
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, var(--color-violeta), var(--color-rosa));
  cursor: pointer;
  overflow: hidden;
  position: relative;
  transition: transform var(--transition-normal),
              box-shadow var(--transition-normal);
  border: 2px solid transparent;
}

.memory-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--transition-normal);
  position: absolute;
  inset: 0;
}

.memory-card .card-back-face {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  transition: opacity var(--transition-normal);
}

.memory-card.revealed img,
.memory-card.matched img {
  opacity: 1;
}

.memory-card.revealed .card-back-face,
.memory-card.matched .card-back-face {
  opacity: 0;
}

.memory-card.matched {
  border-color: #4caf50;
  box-shadow: 0 0 12px rgba(76, 175, 80, 0.5);
  cursor: default;
}

.memory-card:hover:not(.matched):not(.revealed) {
  transform: scale(1.04);
  box-shadow: 0 4px 14px rgba(255, 112, 67, 0.35);
}

.game-message {
  padding: 1rem 1.5rem;
  background-color: var(--color-crema);
  border: 2px solid var(--color-rosa);
  border-radius: var(--border-radius);
  font-family: var(--font-serif);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto 1rem;
  animation: fadeIn 400ms ease-in both;
}

.game-message[hidden] {
  display: none;
}

/* Trivia game */
.trivia-game-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: left;
}

.trivia-question {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-texto);
  margin-bottom: 1.25rem;
  text-align: center;
  line-height: 1.4;
}

.trivia-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.trivia-option {
  background-color: var(--color-blanco);
  color: var(--color-texto);
  border: 2px solid var(--color-rosa);
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              transform var(--transition-fast);
  min-height: 44px;
}

.trivia-option:hover:not(:disabled),
.trivia-option:focus:not(:disabled) {
  background-color: var(--color-rosa);
  color: var(--color-blanco);
  transform: scale(1.02);
  outline: 2px solid var(--color-coral);
  outline-offset: 2px;
}

.trivia-option.correct {
  background-color: #4caf50;
  border-color: #388e3c;
  color: var(--color-blanco);
}

.trivia-option.incorrect {
  background-color: var(--color-coral);
  border-color: #bf360c;
  color: var(--color-blanco);
}

.trivia-option:disabled {
  cursor: default;
}

.trivia-score {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-coral);
  text-align: center;
  padding: 1.5rem;
  background-color: var(--color-crema);
  border: 2px solid var(--color-rosa);
  border-radius: var(--border-radius);
  max-width: 400px;
  margin: 0 auto;
  animation: fadeIn 600ms ease-in both;
}

.trivia-score[hidden] {
  display: none;
}

/* ============================================================
   11. ABOUT SECTION (Requisito 4.1, 4.2, 4.3)
   ============================================================ */
.about-content {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .about-content {
    grid-template-columns: 280px 1fr;
    grid-template-rows: auto auto;
  }

  .about-photo {
    grid-row: 1 / 3;
  }

  .about-timeline {
    grid-column: 2;
  }
}

.about-photo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.mama-portrait {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: top;
  border-radius: 50%;
  border: 4px solid var(--color-rosa);
  box-shadow: 0 6px 24px rgba(244, 143, 177, 0.4);
}

.photo-fallback {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-rosa), var(--color-dorado));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.about-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background-color: var(--color-blanco);
  border-radius: var(--border-radius);
  padding: 1.25rem;
  box-shadow: 0 2px 10px rgba(61, 43, 31, 0.08);
  border-left: 4px solid var(--color-rosa);
}

.zodiac-card {
  border-left-color: var(--color-dorado);
}

.about-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  line-height: 1;
}

.about-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
  color: var(--color-coral);
}

.about-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Timeline */
.about-timeline {
  background-color: var(--color-blanco);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: 0 2px 10px rgba(61, 43, 31, 0.08);
}

.about-timeline h3 {
  color: var(--color-coral);
  margin-bottom: 1.25rem;
  font-size: 1.2rem;
}

.timeline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.timeline-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--color-crema);
  border: 1px solid var(--color-rosa);
  border-radius: 999px;
  padding: 0.4rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-texto);
  transition: background-color var(--transition-fast),
              transform var(--transition-fast);
}

.timeline-item:hover {
  background-color: var(--color-rosa);
  color: var(--color-blanco);
  transform: scale(1.04);
}

.timeline-icon {
  font-size: 1.1rem;
}

.timeline-label {
  white-space: nowrap;
}

/* ============================================================
   12. FOOTER (Requisito 4.6)
   ============================================================ */
footer {
  background: linear-gradient(135deg, var(--color-violeta), var(--color-rosa), var(--color-coral));
  color: var(--color-blanco);
  text-align: center;
  padding: 2rem 1.5rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  letter-spacing: 0.02em;
  text-shadow: 0 1px 4px rgba(0,0,0,0.25);
}

/* ============================================================
   13. ACCESSIBILITY BUTTON (Requisito 7.2)
   ============================================================ */
.accessibility-btn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1500;
  min-width: 44px;
  min-height: 44px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: var(--color-coral);
  color: var(--color-blanco);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(255, 112, 67, 0.45);
  transition: background-color var(--transition-fast),
              transform var(--transition-fast);
  border: 2px solid var(--color-blanco);
}

.accessibility-btn:hover,
.accessibility-btn:focus {
  background-color: var(--color-rosa);
  transform: scale(1.1);
  outline: 2px solid var(--color-dorado);
  outline-offset: 2px;
}

.accessibility-btn[aria-pressed="true"] {
  background-color: var(--color-texto);
  border-color: var(--color-dorado);
}

/* ============================================================
   14. ACCESSIBILITY MODE (Requisito 7.3, 7.4)
   ============================================================ */
html.accessibility-mode {
  font-size: 1.5rem;
}

html.accessibility-mode body {
  background-color: #ffffff;
  color: #000000;
}

html.accessibility-mode h1,
html.accessibility-mode h2,
html.accessibility-mode h3 {
  color: #000000;
}

html.accessibility-mode #main-nav {
  background-color: #ffffff;
  border-bottom: 3px solid #000000;
}

html.accessibility-mode #main-nav a {
  color: #000000;
}

html.accessibility-mode #main-nav a:hover,
html.accessibility-mode #main-nav a:focus,
html.accessibility-mode #main-nav a.active {
  background-color: #000000;
  color: #ffffff;
}

html.accessibility-mode .card-front {
  background: #000000;
  color: #ffffff;
}

html.accessibility-mode .card-back {
  background: #ffffff;
  color: #000000;
  border: 2px solid #000000;
}

html.accessibility-mode .about-card {
  background-color: #ffffff;
  border-left-color: #000000;
  color: #000000;
}

html.accessibility-mode .trivia-option {
  background-color: #ffffff;
  color: #000000;
  border-color: #000000;
}

html.accessibility-mode .trivia-option:hover:not(:disabled),
html.accessibility-mode .trivia-option:focus:not(:disabled) {
  background-color: #000000;
  color: #ffffff;
}

html.accessibility-mode button,
html.accessibility-mode .btn-reset,
html.accessibility-mode .accessibility-btn,
html.accessibility-mode .lightbox-close,
html.accessibility-mode .lightbox-prev,
html.accessibility-mode .lightbox-next {
  min-width: 48px;
  min-height: 48px;
}

html.accessibility-mode .section-subtitle {
  color: #000000;
}

html.accessibility-mode footer {
  background: #000000;
  color: #ffffff;
}

/* ============================================================
   15. REDUCED MOTION (Requisito 10.4)
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ============================================================
   16. RESPONSIVE — MOBILE (320px), TABLET (768px), DESKTOP (1280px)
   ============================================================ */

/* Mobile first — 320px baseline already handled above */

@media (max-width: 480px) {
  :root {
    --section-padding: 3rem 1rem;
  }

  #main-nav {
    gap: 0.25rem;
    padding: 0 0.5rem;
  }

  #main-nav a {
    font-size: 0.78rem;
    padding: 0.35rem 0.5rem;
  }

  .cards-container {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
  }

  .trivia-options {
    grid-template-columns: 1fr;
  }

  .lightbox-prev,
  .lightbox-next {
    width: 36px;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    font-size: 1.1rem;
  }
}

/* Tablet — 768px */
@media (min-width: 768px) {
  :root {
    --section-padding: 5rem 2.5rem;
  }

  .hero-decoration {
    font-size: 4rem;
  }
}

/* Desktop — 1280px */
@media (min-width: 1280px) {
  :root {
    --section-padding: 6rem 4rem;
  }

  .gallery-container {
    max-width: 1400px;
  }

  .cards-container {
    max-width: 1100px;
  }
}

/* ============================================================
   15. CONFETTI (fiesta de Día de la Madre)
   ============================================================ */
#confetti-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  top: -20px;
  animation: confettiFall linear forwards;
}

@keyframes confettiFall {
  0%   { transform: translateY(0) rotate(0deg)   scaleX(1);  opacity: 1; }
  60%  { opacity: 1; }
  100% { transform: translateY(110vh) rotate(720deg) scaleX(-1); opacity: 0; }
}

/* ============================================================
   16. ACCESIBILIDAD — modo accesible también aplica violeta
   ============================================================ */
html.accessibility-mode #razones,
html.accessibility-mode #juegos,
html.accessibility-mode #sobre-mama {
  background: #ffffff;
}

html.accessibility-mode .card-front {
  background: #000000;
  color: #ffffff;
}

html.accessibility-mode .memory-card {
  background: #000000;
}