:root {
  --ink: #02111B;
  --deep: #03045E;
  --ocean: #0077B6;
  --wave: #00B4D8;
  --foam: #90E0EF;
  --mist: #CAF0F8;
  --white: #F8FDFF;
  --accent: #00F5D4;
  --warn: #FF6B6B;
  --gold: #FFD166;
  --green: #06D6A0;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--ink);
  color: var(--white);
  overflow-x: hidden;
  cursor: none;
}

/* ── Custom Cursor ── */
.cursor {
  position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9999;
  width: 12px; height: 12px;
  background: var(--wave);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: transform 0.1s, width 0.2s, height 0.2s, background 0.2s;
}
.cursor-ring {
  position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9998;
  width: 36px; height: 36px;
  border: 1.5px solid var(--wave);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease-out, width 0.3s, height 0.3s, border-color 0.2s;
  opacity: 0.6;
}

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.2rem 4rem;
  backdrop-filter: blur(20px);
  background: rgba(2, 17, 27, 0.7);
  border-bottom: 1px solid rgba(0, 180, 216, 0.15);
  transition: padding 0.3s;
}
.nav-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--foam);
}
.nav-logo span { color: var(--wave); font-size: 0.95rem; }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  color: rgba(202, 240, 248, 0.7);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--wave); }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 8rem 4rem 4rem;
}

.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 50%, rgba(0,119,182,0.25) 0%, transparent 70%),
              radial-gradient(ellipse 50% 40% at 10% 80%, rgba(0,180,216,0.15) 0%, transparent 60%),
              var(--ink);
}

/* Animated water bubbles */
.bubbles {
  position: absolute; inset: 0; z-index: 0; overflow: hidden;
}
.bubble {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(0,245,212,0.3), rgba(0,180,216,0.08));
  border: 1px solid rgba(0,180,216,0.2);
  animation: rise linear infinite;
}
@keyframes rise {
  0% { transform: translateY(110vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 0.6; }
  100% { transform: translateY(-20vh) scale(1); opacity: 0; }
}

.hero-content { position: relative; z-index: 1; max-width: 700px; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 1.8rem;
}
.hero-eyebrow::before {
  content: ''; display: block;
  width: 28px; height: 1.5px; background: var(--accent);
}

.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  line-height: 1.0;
  font-weight: 900;
  margin-bottom: 0.3rem;
}
.hero-title em {
  font-style: italic;
  color: var(--wave);
  display: block;
}

.hero-date {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1rem, 2vw, 1.4rem);
  color: var(--foam);
  opacity: 0.6;
  font-weight: 400;
  font-style: italic;
  margin-bottom: 2rem;
}

.hero-desc {
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(202,240,248,0.75);
  max-width: 520px;
  margin-bottom: 3rem;
}

.hero-cta {
  display: inline-flex; align-items: center; gap: 0.8rem;
  padding: 1rem 2.2rem;
  background: linear-gradient(135deg, var(--wave), var(--accent));
  color: var(--ink);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  border-radius: 50px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 30px rgba(0,180,216,0.35);
}
.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(0,180,216,0.5);
}

/* Big decorative drop */
.hero-drop {
  position: absolute; right: -80px; top: 50%; transform: translateY(-50%);
  width: 520px; height: 600px; z-index: 0;
  opacity: 0.15;
}

/* Scroll indicator */
.scroll-hint {
  position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.4rem;
  font-size: 0.7rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: rgba(144,224,239,0.5); z-index: 1;
  animation: bob 2s ease-in-out infinite;
}
.scroll-hint::after {
  content: ''; width: 1px; height: 40px;
  background: linear-gradient(to bottom, rgba(144,224,239,0.5), transparent);
}
@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ── STATS BAND ── */
#stats {
  padding: 5rem 4rem;
  background: linear-gradient(180deg, rgba(0,119,182,0.08) 0%, transparent 100%);
  border-top: 1px solid rgba(0,180,216,0.1);
  border-bottom: 1px solid rgba(0,180,216,0.1);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  max-width: 1200px; margin: 0 auto;
}
.stat-card {
  padding: 2.5rem 2rem;
  text-align: center;
  border-right: 1px solid rgba(0,180,216,0.12);
  transition: background 0.3s;
}
.stat-card:last-child { border-right: none; }
.stat-card:hover { background: rgba(0,180,216,0.06); }
.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--wave);
  display: block;
  line-height: 1;
}
.stat-unit {
  font-size: 0.8rem; letter-spacing: 0.1em;
  color: var(--accent); font-weight: 600;
  text-transform: uppercase; margin: 0.3rem 0 0.6rem;
  display: block;
}
.stat-label {
  font-size: 0.85rem; color: rgba(202,240,248,0.6); line-height: 1.5;
}

/* ── SECTIONS shared ── */
section { padding: 7rem 4rem; }
.section-tag {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 0.8rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.section-tag::before { content: ''; width: 20px; height: 1.5px; background: var(--accent); }
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1rem;
}
.section-title em { color: var(--wave); font-style: italic; }
.section-desc {
  font-size: 1rem; color: rgba(202,240,248,0.65);
  line-height: 1.8; max-width: 540px;
  margin-bottom: 3rem;
}

/* ── CRISIS SECTION ── */
#crisis { background: var(--ink); }
.crisis-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center;
}
.crisis-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.crisis-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(0,180,216,0.12);
  border-radius: 16px;
  padding: 1.6rem;
  transition: border-color 0.3s, transform 0.3s;
  position: relative; overflow: hidden;
}
.crisis-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--wave), var(--accent));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s ease;
}
.crisis-card:hover { border-color: rgba(0,180,216,0.4); transform: translateY(-3px); }
.crisis-card:hover::before { transform: scaleX(1); }
.crisis-icon { font-size: 1.8rem; margin-bottom: 0.8rem; }
.crisis-card h3 { font-size: 0.95rem; font-weight: 700; color: var(--foam); margin-bottom: 0.5rem; }
.crisis-card p { font-size: 0.82rem; color: rgba(202,240,248,0.55); line-height: 1.6; }

/* Wave divider */
.wave-divider {
  width: 100%; height: 80px; overflow: hidden; display: block;
  line-height: 0;
}
.wave-divider svg { display: block; width: 100%; height: 100%; }

/* ── GAME SECTION ── */
#juegos {
  background: linear-gradient(180deg, rgba(3,4,94,0.4) 0%, rgba(2,17,27,1) 100%);
  border-top: 1px solid rgba(0,180,216,0.1);
}
.games-header { max-width: 1200px; margin: 0 auto 3.5rem; text-align: center; }
.games-header .section-tag { justify-content: center; }
.games-header .section-title { margin: 0 auto; }
.games-header .section-desc { margin: 0 auto 0; }
.games-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.game-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(0,180,216,0.15);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s;
}
.game-card:hover { transform: translateY(-6px); border-color: var(--wave); }
.game-header {
  padding: 1.4rem 1.8rem;
  display: flex; align-items: center; gap: 1rem;
  border-bottom: 1px solid rgba(0,180,216,0.1);
}
.game-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; flex-shrink: 0;
}
.game-name { font-weight: 700; font-size: 1rem; color: var(--foam); }
.game-tag { font-size: 0.72rem; color: var(--wave); font-weight: 500; }
.game-body { padding: 1.8rem; }

/* ── GAME 1: Clasificar el agua ── */
.sort-game .drop-zones {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; margin-bottom: 1.2rem;
}
.drop-zone {
  min-height: 100px; border-radius: 12px;
  padding: 0.8rem;
  border: 2px dashed rgba(0,180,216,0.3);
  transition: border-color 0.2s, background 0.2s;
  display: flex; flex-direction: column; gap: 0.4rem;
}
.drop-zone.dragover { border-color: var(--accent); background: rgba(0,245,212,0.05); }
.drop-zone.correct { border-color: var(--green); background: rgba(6,214,160,0.08); }
.drop-zone.wrong { border-color: var(--warn); background: rgba(255,107,107,0.08); }
.drop-zone-title { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(202,240,248,0.5); margin-bottom: 0.3rem; }
.drag-items { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.drag-item {
  padding: 0.4rem 0.9rem;
  background: rgba(0,180,216,0.15);
  border: 1px solid rgba(0,180,216,0.3);
  border-radius: 50px;
  font-size: 0.78rem; font-weight: 600; color: var(--foam);
  cursor: grab; user-select: none;
  transition: background 0.2s, transform 0.1s;
}
.drag-item:active { cursor: grabbing; transform: scale(0.97); }
.drag-item.placed { opacity: 0; pointer-events: none; }

/* Ghost element while touch-dragging */
#drag-ghost {
  background: rgba(0,180,216,0.25) !important;
  border: 1.5px solid var(--wave) !important;
  border-radius: 50px;
  padding: 0.4rem 0.9rem;
  font-size: 0.78rem; font-weight: 600; color: var(--foam);
  font-family: 'DM Sans', sans-serif;
  box-shadow: 0 4px 20px rgba(0,180,216,0.4);
  white-space: nowrap;
}
.placed-item {
  padding: 0.3rem 0.7rem;
  background: rgba(0,180,216,0.2);
  border-radius: 50px;
  font-size: 0.72rem; font-weight: 600; color: var(--foam);
}
.game-btn {
  width: 100%; padding: 0.75rem;
  background: linear-gradient(135deg, var(--ocean), var(--wave));
  border: none; border-radius: 10px;
  color: var(--white); font-weight: 700; font-size: 0.85rem;
  cursor: pointer; transition: opacity 0.2s, transform 0.1s;
  font-family: 'DM Sans', sans-serif;
}
.game-btn:hover { opacity: 0.9; }
.game-btn:active { transform: scale(0.98); }
.game-feedback {
  text-align: center; font-weight: 600; font-size: 0.85rem;
  padding: 0.5rem; border-radius: 8px; margin-top: 0.8rem;
  display: none;
}
.game-feedback.show { display: block; }
.game-feedback.win { color: var(--green); background: rgba(6,214,160,0.1); }
.game-feedback.lose { color: var(--warn); background: rgba(255,107,107,0.1); }

/* ── GAME 2: Quiz ── */
.quiz-game .question {
  font-size: 0.92rem; font-weight: 600;
  color: var(--foam); margin-bottom: 1rem; line-height: 1.5;
  min-height: 2.5rem;
}
.quiz-options { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1rem; }
.quiz-opt {
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(0,180,216,0.2);
  border-radius: 10px;
  font-size: 0.82rem; color: var(--foam); font-weight: 500;
  cursor: pointer; text-align: left;
  transition: border-color 0.2s, background 0.2s;
  font-family: 'DM Sans', sans-serif;
}
.quiz-opt:hover:not(:disabled) { border-color: var(--wave); background: rgba(0,180,216,0.08); }
.quiz-opt.correct { border-color: var(--green); background: rgba(6,214,160,0.12); color: var(--green); }
.quiz-opt.wrong { border-color: var(--warn); background: rgba(255,107,107,0.08); color: var(--warn); }
.quiz-opt:disabled { cursor: default; }
.quiz-progress {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 0.5rem;
}
.quiz-score { font-size: 0.8rem; font-weight: 700; color: var(--accent); }
.quiz-num { font-size: 0.75rem; color: rgba(202,240,248,0.4); }
.quiz-bar { height: 3px; background: rgba(0,180,216,0.15); border-radius: 2px; margin-bottom: 1rem; }
.quiz-bar-fill { height: 100%; background: linear-gradient(90deg, var(--wave), var(--accent)); border-radius: 2px; transition: width 0.4s; }
.quiz-explain { font-size: 0.78rem; color: rgba(202,240,248,0.55); margin-top: 0.5rem; line-height: 1.6; display: none; }
.quiz-explain.show { display: block; }

/* ── GAME 3: Memory ── */
.memory-game .mem-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; margin-bottom: 1rem;
}
.mem-card {
  aspect-ratio: 1;
  border-radius: 10px;
  cursor: pointer;
  perspective: 600px;
  position: relative;
}
.mem-inner {
  width: 100%; height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.4s;
  position: relative;
}
.mem-card.flipped .mem-inner { transform: rotateY(180deg); }
.mem-card.matched .mem-inner { transform: rotateY(180deg); }
.mem-card.matched .mem-back { border-color: var(--green); background: rgba(6,214,160,0.15); }
.mem-front, .mem-back {
  position: absolute; inset: 0;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  backface-visibility: hidden;
  font-size: 1.4rem;
  border: 1px solid rgba(0,180,216,0.2);
}
.mem-front { background: rgba(0,119,182,0.2); font-size: 1rem; color: var(--wave); }
.mem-back { background: rgba(0,180,216,0.12); transform: rotateY(180deg); }
.mem-stats { display: flex; justify-content: space-between; font-size: 0.78rem; color: rgba(202,240,248,0.5); }
.mem-highlight { color: var(--accent); font-weight: 700; }

/* ── ACTIONS SECTION ── */
#acciones {
  background: var(--ink);
  border-top: 1px solid rgba(0,180,216,0.08);
}
.actions-inner { max-width: 1200px; margin: 0 auto; }
.actions-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: end; margin-bottom: 4rem; }
.actions-list {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.action-item {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: 1.4rem;
  border-radius: 14px;
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(0,180,216,0.1);
  transition: all 0.3s;
}
.action-item:hover { background: rgba(0,180,216,0.06); border-color: rgba(0,180,216,0.25); }
.action-num {
  font-family: 'Playfair Display', serif;
  font-size: 2rem; font-weight: 900; line-height: 1;
  color: rgba(0,180,216,0.25); flex-shrink: 0;
  transition: color 0.3s;
}
.action-item:hover .action-num { color: var(--wave); }
.action-item h4 { font-size: 0.9rem; font-weight: 700; color: var(--foam); margin-bottom: 0.3rem; }
.action-item p { font-size: 0.8rem; color: rgba(202,240,248,0.5); line-height: 1.5; }

/* ── FOOTER ── */
footer {
  padding: 4rem;
  border-top: 1px solid rgba(0,180,216,0.1);
  background: rgba(3,4,94,0.15);
  display: flex; justify-content: space-between; align-items: center;
  gap: 2rem; flex-wrap: wrap;
}
.footer-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem; font-weight: 900;
  color: var(--foam);
}
.footer-logo span { color: var(--wave); }
.footer-copy { font-size: 0.8rem; color: rgba(202,240,248,0.35); }

/* ── FADE IN ANIMATION ── */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: none; }

/* Stagger children */
.stagger > * {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger.visible > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0s; }
.stagger.visible > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.2s; }
.stagger.visible > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.3s; }
.stagger.visible > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.4s; }
.stagger.visible > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.5s; }
.stagger.visible > *:nth-child(n+7) { opacity: 1; transform: none; transition-delay: 0.6s; }

/* Ripple on click */
.ripple { position: relative; overflow: hidden; }
.ripple-circle {
  position: absolute; border-radius: 50%;
  background: rgba(0,180,216,0.25);
  animation: ripple-out 0.6s ease-out forwards;
  pointer-events: none;
  transform: scale(0);
}
@keyframes ripple-out { to { transform: scale(4); opacity: 0; } }

/* ── TEAM SECTION ── */
#integrantes {
  padding: 7rem 4rem;
  background: linear-gradient(180deg, rgba(3,4,94,0.5) 0%, rgba(2,17,27,1) 100%);
  border-top: 1px solid rgba(0,180,216,0.12);
}
.team-inner { max-width: 960px; margin: 0 auto; }
.team-header { text-align: center; margin-bottom: 3.5rem; }
.team-header .section-tag { justify-content: center; }

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}
.team-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(0,180,216,0.12);
  border-radius: 18px;
  padding: 1.8rem 1.4rem;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
  position: relative; overflow: hidden;
}
.team-card::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,180,216,0.07), transparent);
  pointer-events: none;
}
.team-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0,180,216,0.35);
  background: rgba(0,180,216,0.05);
}
.team-avatar {
  width: 60px; height: 60px;
  border-radius: 50%;
  margin: 0 auto 1rem;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(0,119,182,0.3), rgba(0,180,216,0.15));
  border: 1.5px solid rgba(0,180,216,0.3);
}
.team-name {
  font-family: 'Playfair Display', serif;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--foam);
  line-height: 1.35;
}
.team-role {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--wave);
  margin-top: 0.3rem;
}

.docente-card {
  max-width: 420px; margin: 0 auto;
  background: linear-gradient(135deg, rgba(0,119,182,0.15), rgba(0,180,216,0.08));
  border: 1px solid rgba(0,180,216,0.25);
  border-radius: 20px;
  padding: 2rem 2.5rem;
  display: flex; align-items: center; gap: 1.8rem;
  text-align: left;
}
.docente-avatar {
  width: 72px; height: 72px; flex-shrink: 0;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(0,180,216,0.25), rgba(0,245,212,0.1));
  border: 2px solid var(--wave);
}
.docente-tag {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 0.3rem;
}
.docente-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem; font-weight: 700;
  color: var(--foam);
}
.docente-subject {
  font-size: 0.8rem; color: rgba(202,240,248,0.5);
  margin-top: 0.2rem;
}

/* ── RESPONSIVE ── */

/* Touch devices: restore default cursor and hide custom cursor */
@media (hover: none) {
  body { cursor: auto; }
  .cursor, .cursor-ring { display: none; }
}

/* ── Tablet · ≤ 900px ── */
@media (max-width: 900px) {
  /* NAV */
  nav { padding: 1rem 1.5rem; }
  .nav-links { gap: 1.5rem; }

  /* HERO */
  #hero { padding: 7rem 2rem 4rem; }
  .hero-drop { display: none; }

  /* STATS */
  #stats { padding: 3.5rem 2rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-card:nth-child(2n) { border-right: none; }
  .stat-card:nth-child(odd) { border-right: 1px solid rgba(0,180,216,0.12); }

  /* SECTIONS */
  section { padding: 4.5rem 2rem; }

  /* CRISIS */
  .crisis-inner { grid-template-columns: 1fr; gap: 2.5rem; }

  /* GAMES */
  .games-grid { grid-template-columns: 1fr; }

  /* ACTIONS */
  .actions-intro { grid-template-columns: 1fr; gap: 1.5rem; }
  .actions-list { grid-template-columns: 1fr; }

  /* FOOTER */
  footer { padding: 2.5rem 2rem; flex-direction: column; align-items: flex-start; gap: 0.75rem; }

  /* TEAM */
  .team-grid { grid-template-columns: 1fr 1fr; }
  .docente-card { flex-direction: column; text-align: center; max-width: 100%; }
  #integrantes { padding: 4rem 1.5rem; }
}

/* ── Mobile · ≤ 600px ── */
@media (max-width: 600px) {
  /* NAV */
  nav { padding: 0.9rem 1rem; }
  .nav-logo { font-size: 1rem; }
  .nav-links { gap: 0.9rem; }
  .nav-links a { font-size: 0.72rem; letter-spacing: 0.05em; }

  /* HERO */
  #hero { padding: 5.5rem 1.2rem 3rem; }
  .hero-eyebrow { margin-bottom: 1.2rem; }
  .hero-desc { font-size: 0.95rem; max-width: 100%; }
  .hero-cta { padding: 0.85rem 1.5rem; font-size: 0.82rem; }

  /* STATS */
  #stats { padding: 2.5rem 1.2rem; }
  .stat-num { font-size: 2.6rem; }
  .stat-card { padding: 1.8rem 1rem; }

  /* SECTIONS */
  section { padding: 3.5rem 1.2rem; }
  .section-desc { margin-bottom: 2rem; }

  /* CRISIS CARDS */
  .crisis-cards { grid-template-columns: 1fr; }

  /* GAMES - inner game body */
  .game-body { padding: 1.2rem; }

  /* ACTIONS */
  .actions-intro > div:last-child { display: none; }

  /* FOOTER */
  footer { padding: 2rem 1.2rem; }

  /* TEAM */
  .team-grid { grid-template-columns: 1fr; }
}

/* ── Small mobile · ≤ 420px ── */
@media (max-width: 420px) {
  /* NAV: stack logo above links */
  nav { flex-direction: column; align-items: flex-start; gap: 0.5rem; padding: 0.8rem 1rem; }
  .nav-links { gap: 0.7rem; flex-wrap: wrap; }

  /* STATS: single column */
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card { border-right: none; border-bottom: 1px solid rgba(0,180,216,0.12); }
  .stat-card:last-child { border-bottom: none; }
  .stat-card:nth-child(odd) { border-right: none; }

  /* MEMORY GRID: tighter gap */
  .memory-game .mem-grid { gap: 0.3rem; }
}