:root {
  --bg:        #f6f6f3;
  --bg2:       #ecece7;
  --bg3:       #ffffff;
  --card:      #ffffff;
  --card2:     #faf7f0;
  --borde:     #e2dcc8;
  --borde2:    #c9c1a6;
  --magenta:   #dc2626;
  --magenta2:  #b91c1c;
  --purpura:   #1d4ed8;
  --purpura2:  #1e3a8a;
  --azul:      #2563eb;
  --grad:      linear-gradient(135deg, #dc2626 0%, #1d4ed8 100%);
  --grad2:     linear-gradient(135deg, #1d4ed8 0%, #3b82f6 100%);
  --grad-soft: linear-gradient(135deg, rgba(29,78,216,.1), rgba(29,78,216,0));
  --blanco:    #0f1729;
  --gris:      rgba(15,23,41,.66);
  --gris2:     rgba(15,23,41,.46);
  --gris3:     rgba(15,23,41,.26);
  --glass:     rgba(0,0,0,.035);
  --glass-b:   rgba(15,23,41,.1);
  --text-strong: #0a0f1e;
}

/* Titulos auxiliares sobre fondo claro (no tienen color propio) */
.footer-brand .fb-name,
.nav-brand .nb-name,
.ic-name {
  color: var(--blanco);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

html, body { overflow-x: clip; }

/* ───── CURSOR: cinturón negro ───── */
:root {
  --cursor-belt: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='32' viewBox='0 0 16 32'><rect x='4' y='1' width='8' height='26' rx='1.5' fill='%23111' stroke='%23444' stroke-width='0.6'/><rect x='4' y='2' width='8' height='6' fill='%23c8102e'/><rect x='4' y='1' width='8' height='1' fill='%23fff'/><rect x='4' y='8' width='8' height='1' fill='%23fff'/></svg>") 8 5, auto;
  --cursor-belt-hover: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='32' viewBox='0 0 16 32'><rect x='3' y='1' width='10' height='28' rx='2' fill='%23111' stroke='%23c8102e' stroke-width='0.8'/><rect x='3' y='2' width='10' height='7' fill='%23e21a3c'/><rect x='3' y='1' width='10' height='1' fill='%23fff'/><rect x='3' y='9' width='10' height='1' fill='%23fff'/></svg>") 8 5, pointer;
}
body { cursor: var(--cursor-belt); }
a, button, .btn, .gallery-tile, .sched-card, .acc-head, .acc-item, .principle-header, .part-header, .tabs-nav button, .p-nav-btn, .control-btn, [onclick] { cursor: var(--cursor-belt-hover); }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  background: var(--bg);
  color: var(--blanco);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  background-image: radial-gradient(ellipse at 50% 0%, rgba(29,78,216,.07) 0%, transparent 60%);
}

@media (hover: none) {
  body, a, button, .btn, .gallery-tile, .sched-card, .acc-head, .acc-item, .principle-header, .part-header, .tabs-nav button, .p-nav-btn, .control-btn, [onclick] { cursor: auto; }
}

/* ───── SCROLLBAR: cinturón negro ───── */
html { scrollbar-width: auto; scrollbar-color: #111 rgba(15,23,41,.04); }
::-webkit-scrollbar { width: 14px; height: 14px; }
::-webkit-scrollbar-track {
  background: rgba(15,23,41,.04);
  border-radius: 2px;
}
::-webkit-scrollbar-thumb {
  background: #0a0a0a;
  border-radius: 2px;
  min-height: 80px;
  box-shadow:
    inset 0 -22px 0 0 #c8102e,
    inset 0 -23px 0 0 #000;
}
::-webkit-scrollbar-thumb:hover {
  background: #000;
  box-shadow:
    inset 0 -24px 0 0 #e21a3c,
    inset 0 -25px 0 0 #000;
}
::-webkit-scrollbar-corner { background: transparent; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

/* ───── FONDO ANIMADO ───── */
.bg-fx {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}
.bg-fx::before {
  content: '';
  position: absolute;
  top: -40%; left: -40%;
  width: 180%; height: 180%;
  background:
    radial-gradient(ellipse at 20% 15%, rgba(29,78,216,.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(37,99,235,.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 90%, rgba(15,23,41,.04) 0%, transparent 45%);
  animation: bgMove 22s ease-in-out infinite;
}
@keyframes bgMove {
  0%, 100% { transform: translate(0,0) rotate(0deg); }
  33%      { transform: translate(2%,3%) rotate(1deg); }
  66%      { transform: translate(-1%,1%) rotate(-1deg); }
}
.noise {
  position: fixed; inset: 0; z-index: -1;
  opacity: .012; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ───── HERO ───── */
:root { --nav-h: 64px; }
header.hero {
  position: relative;
  min-height: calc(100svh - var(--nav-h));
  padding: 2.5rem 1.5rem 2.5rem;
  text-align: center;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.hero::after {
  content: '';
  position: absolute;
  left: 50%; bottom: 0;
  transform: translateX(-50%);
  width: min(92%, 900px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--borde2), transparent);
}

.hero-kanji {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(4rem, 14vw, 7rem);
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(180deg, rgba(15,23,41,.12) 0%, rgba(15,23,41,0) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: -1.5rem;
  user-select: none;
}

.logo-ring {
  width: 180px; height: 180px;
  margin: 0 auto 1.6rem;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.logo-ring::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  padding: 2px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: ringRotate 14s linear infinite;
}
.logo-ring::after {
  content: '';
  position: absolute;
  inset: -18px;
  border-radius: 50%;
  border: 1px dashed rgba(220,38,38,.22);
  animation: ringRotate 40s linear infinite reverse;
}
@keyframes ringRotate { to { transform: rotate(360deg); } }
.logo-ring img {
  width: 74%;
  height: auto;
  filter: drop-shadow(0 6px 24px rgba(220,38,38,.25));
}

.hero h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.8rem, 11vw, 5.5rem);
  letter-spacing: .1em;
  line-height: .95;
  font-weight: 400;
  color: var(--blanco);
}
.hero h1 .gradient {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}
.hero .subtitle {
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .4em;
  text-transform: uppercase;
  color: var(--gris);
  margin-top: 1.1rem;
}
.hero .meta {
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gris2);
  margin-top: .5rem;
}
.hero .meta .dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--magenta);
  margin: 0 .7rem;
  transform: translateY(-2px);
  box-shadow: 0 0 10px var(--magenta);
}

.hero-cta {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .8rem;
  margin-top: 2.4rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .95rem 1.7rem;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn.primary {
  background: var(--magenta);
  color: #fff;
  box-shadow: 0 10px 24px -12px rgba(220,38,38,.55);
}
.btn.primary:hover {
  background: var(--magenta2);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px -10px rgba(220,38,38,.6);
}
.btn.ghost {
  background: transparent;
  color: var(--blanco);
  border-color: var(--glass-b);
}
.btn.ghost:hover {
  border-color: var(--magenta);
  color: var(--magenta);
  transform: translateY(-2px);
}

/* ───── NAV STICKY ───── */
nav.main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--nav-h);
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid var(--borde);
  box-shadow: 0 1px 0 rgba(15,23,41,.04);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: .8rem 1.2rem;
  min-height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-brand {
  display: flex; align-items: center; gap: .65rem;
  flex-shrink: 0;
}
.nav-brand img { width: 34px; height: auto; }
.nav-brand .nb-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.1rem;
  letter-spacing: .15em;
  color: var(--blanco);
}
.nav-brand .nb-sub {
  font-size: .58rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--gris);
  margin-top: 2px;
}
.nav-brand .nb-text { display: flex; flex-direction: column; line-height: 1; }

.nav-links {
  margin-left: auto;
  display: flex;
  gap: .15rem;
  list-style: none;
  flex-wrap: wrap;
}
.nav-links a {
  display: inline-block;
  padding: .55rem .95rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--gris);
  border-radius: 999px;
  transition: color .18s, background .18s;
}
.nav-links a:hover {
  color: #fff;
  background: var(--glass);
}
.nav-links a.current {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 14px -4px rgba(220,38,38,.5);
}
.nav-links a.current:hover { color: #fff; }

/* ───── MAIN ───── */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 1.5rem 5rem;
}

section {
  margin-bottom: 5.5rem;
  scroll-margin-top: 80px;
}

.sec-label {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: .72rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--magenta);
  font-weight: 700;
  margin-bottom: .9rem;
}
.sec-label::before {
  content: '';
  width: 26px; height: 1px;
  background: var(--magenta);
}
.sec-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 6vw, 3rem);
  line-height: 1.02;
  letter-spacing: .04em;
  color: var(--blanco);
  margin-bottom: 1rem;
  font-weight: 400;
}
.sec-title .accent {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sec-lead {
  font-size: 1.02rem;
  color: var(--gris);
  max-width: 62ch;
  line-height: 1.75;
  font-weight: 300;
}

/* ───── NOSOTROS ───── */
.values {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.8rem;
}
.value-pill {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .55rem 1rem;
  background: var(--glass);
  border: 1px solid var(--glass-b);
  border-radius: 999px;
  font-size: .82rem;
  color: var(--blanco);
  backdrop-filter: blur(6px);
}
.value-pill::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--grad);
}

/* ───── FEATURE CARDS (programa / principios) ───── */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.3rem;
  margin-top: 1.6rem;
}
.feature-card {
  position: relative;
  padding: 2rem 1.8rem 2.2rem;
  border-radius: 22px;
  background: var(--card);
  border: 1px solid var(--borde);
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  display: flex;
  flex-direction: column;
  min-height: 260px;
}
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-soft);
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}
.feature-card::after {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: var(--grad);
  opacity: .18;
  filter: blur(50px);
  transition: opacity .3s ease, transform .4s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--magenta);
  box-shadow: 0 30px 60px -30px rgba(220,38,38,.35);
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover::after  { opacity: .35; transform: scale(1.15); }

.feature-card .fc-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3.2rem;
  letter-spacing: .05em;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(220,38,38,.35);
  margin-bottom: 1rem;
  position: relative;
}
.feature-card .fc-label {
  font-size: .7rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--magenta);
  font-weight: 700;
  margin-bottom: .5rem;
  position: relative;
}
.feature-card h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  letter-spacing: .04em;
  color: var(--blanco);
  margin-bottom: .7rem;
  position: relative;
  font-weight: 400;
}
.feature-card p {
  color: var(--gris);
  font-size: .95rem;
  line-height: 1.65;
  font-weight: 300;
  margin-bottom: auto;
  position: relative;
}
.feature-card .fc-arrow {
  margin-top: 1.6rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  position: relative;
}
.feature-card .fc-arrow svg { transition: transform .25s ease; }
.feature-card:hover .fc-arrow svg { transform: translateX(6px); }

/* ───── HORARIOS ───── */
.schedule-grid-real {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: .6rem;
  margin-top: 1.8rem;
}
.sched-card {
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: 14px;
  padding: 1rem .8rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  min-height: 150px;
  transition: border-color .25s ease, transform .25s ease;
  position: relative;
  overflow: hidden;
}
.sched-card.active {
  background: linear-gradient(180deg, rgba(29,78,216,.08), rgba(29,78,216,0)), var(--card);
  border-color: rgba(220,38,38,.35);
}
.sched-card.active::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
}
.sched-card:hover { transform: translateY(-3px); }
.sched-card.active:hover { border-color: var(--magenta); box-shadow: 0 12px 30px -15px rgba(220,38,38,.5); }
.sc-day {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.1rem;
  letter-spacing: .12em;
  color: var(--blanco);
  text-transform: uppercase;
  font-weight: 400;
}
.sched-card:not(.active) .sc-day { color: var(--gris); }
.sc-time {
  display: flex;
  align-items: baseline;
  gap: .25rem;
  font-family: 'Bebas Neue', sans-serif;
  line-height: 1;
  margin: auto 0;
}
.sc-hour {
  font-size: 1.5rem;
  letter-spacing: .04em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sc-dash { color: var(--gris2); font-size: 1rem; }
.sc-time.sc-rest {
  font-size: .75rem;
  font-family: 'Inter', sans-serif;
  color: var(--gris2);
  letter-spacing: .15em;
  text-transform: uppercase;
  font-weight: 600;
  background: none;
  -webkit-text-fill-color: var(--gris2);
}
.sc-meta {
  font-size: .68rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--gris);
  font-weight: 600;
}
.sched-card:not(.active) .sc-meta { color: var(--gris2); }

.sched-summary {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.3rem;
  justify-content: flex-start;
}
.ss-pill {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .65rem 1.1rem;
  background: var(--glass);
  border: 1px solid var(--glass-b);
  border-radius: 999px;
  font-size: .82rem;
  color: var(--blanco);
  backdrop-filter: blur(6px);
  font-weight: 500;
}
.ss-pill.highlight {
  background: var(--grad);
  border-color: transparent;
  color: #fff;
  font-weight: 700;
  letter-spacing: .05em;
  box-shadow: 0 8px 22px -10px rgba(220,38,38,.5);
}

.contact-card--map,
.contact-card--full { grid-column: 1 / -1; }
.contact-card--map .cc-link { margin-top: .4rem; }
.cc-map {
  margin-top: 1rem;
}
.cc-map iframe {
  display: block;
  width: 100%;
  height: 360px;
  border: 1px solid var(--borde);
  border-radius: 12px;
  background: var(--card);
}
@media (max-width: 560px) {
  .cc-map iframe { height: 260px; }
}

/* ───── INSTRUCTORES ───── */
.instructor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.6rem;
}
.instructor-grid.single {
  grid-template-columns: minmax(280px, 360px);
  justify-content: center;
}
.instructor-card {
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: 18px;
  padding: 1.5rem 1.3rem 1.3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: .85rem;
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
  position: relative;
  overflow: hidden;
}
.instructor-card:hover { border-color: var(--borde2); transform: translateY(-2px); }
.instructor-card.featured {
  padding: 2rem 1.6rem 1.6rem;
  background: linear-gradient(180deg, rgba(29,78,216,.06), rgba(29,78,216,0)), var(--card);
  border-color: var(--borde2);
}
.instructor-card.featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
}
.instructor-card.featured:hover {
  border-color: var(--magenta);
  box-shadow: 0 20px 44px -22px rgba(220,38,38,.45);
}
.ic-photo {
  width: 120px; height: 120px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, rgba(220,38,38,.25), transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(29,78,216,.25), transparent 50%),
    var(--bg3);
  border: 2px solid var(--borde);
  display: flex; align-items: center; justify-content: center;
  color: var(--gris2);
  font-size: 2rem;
  position: relative;
  overflow: hidden;
}
.ic-photo::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  padding: 2px;
  background: var(--grad);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: .55;
  pointer-events: none;
}
.ic-photo.has-img {
  border-color: transparent;
  background: var(--bg3);
}
.ic-photo.has-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}
.instructor-card.featured .ic-photo { width: 140px; height: 140px; }
.instructor-card.featured .ic-photo::before { opacity: .85; }
.ic-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.35rem;
  letter-spacing: .08em;
  color: var(--gris2);
  font-weight: 400;
}
.ic-name.real {
  color: var(--blanco);
  font-size: 1.6rem;
}
.ic-belt {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .68rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gris);
  padding: .35rem .8rem;
  background: var(--glass);
  border: 1px solid var(--borde);
  border-radius: 999px;
  font-weight: 600;
}
.ic-belt .belt-bar {
  width: 26px; height: 7px;
  border-radius: 2px;
  background: linear-gradient(90deg, #0f172a 70%, var(--magenta) 70%);
  border: 1px solid var(--borde2);
}
.ic-belt .belt-bar.roxa {
  background: linear-gradient(90deg, #5d2e8e 0%, #7c3aed 80%, #000 80%, #000 100%);
  border-color: #4a2b7a;
}
.ic-belt .belt-bar.negro {
  background: linear-gradient(90deg, #111 0%, #1a1a1a 80%, #c00 80%, #c00 100%);
  border-color: #2a2a2a;
}
.instructor-card.featured .ic-belt {
  color: var(--blanco);
  border-color: var(--borde2);
  background: linear-gradient(135deg, rgba(29,78,216,.08), rgba(29,78,216,0));
}
.ic-belts {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  align-items: center;
  width: 100%;
}
.ic-bio {
  margin-top: .6rem;
  font-size: .86rem;
  color: var(--gris);
  line-height: 1.55;
  font-weight: 300;
  max-width: 28ch;
}
.ic-bio strong {
  color: #fff;
  font-weight: 600;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.ic-social {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-top: .85rem;
  padding: .4rem .75rem;
  border: 1px solid var(--borde);
  border-radius: 999px;
  color: var(--gris);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .02em;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}
.ic-social svg { width: 16px; height: 16px; }
.ic-social:hover {
  color: #fff;
  border-color: transparent;
  background: #0a66c2;
  transform: translateY(-1px);
}
.placeholder-note {
  margin-top: 1.2rem;
  font-size: .8rem;
  color: var(--gris2);
  text-align: center;
  font-style: italic;
}

/* ───── GALERÍA ───── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: .8rem;
  margin-top: 1.6rem;
}
.gallery-tile {
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  background:
    linear-gradient(135deg, rgba(29,78,216,.12), rgba(29,78,216,0)),
    var(--card);
  border: 1px solid var(--borde);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gris2);
  font-size: .68rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  font-weight: 700;
  position: relative;
  overflow: hidden;
  transition: border-color .25s ease;
}
.gallery-tile::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(220,38,38,.18), transparent 55%);
  opacity: .6;
}
.gallery-tile span { position: relative; }
button.gallery-tile {
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: zoom-in;
}
.gallery-tile img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s ease;
}
.gallery-tile:has(img)::before { display: none; }
.gallery-tile:has(img):hover img { transform: scale(1.04); }
.gallery-tile:hover { border-color: var(--borde2); }
.gallery-tile:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ───── LIGHTBOX ───── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, .92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  transition: opacity .2s ease;
}
.lightbox[hidden] { display: none; }
.lightbox.open { opacity: 1; }
.lb-img {
  max-width: min(92vw, 1400px);
  max-height: 88vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .6);
  user-select: none;
  -webkit-user-drag: none;
}
.lb-close, .lb-prev, .lb-next {
  position: absolute;
  background: rgba(20, 20, 20, .55);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 999px;
  cursor: pointer;
  line-height: 1;
  font-weight: 400;
  transition: background .2s ease, transform .2s ease, border-color .2s ease;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.lb-close:hover, .lb-prev:hover, .lb-next:hover {
  background: rgba(220,38,38, .85);
  border-color: transparent;
}
.lb-close {
  top: 1.25rem;
  right: 1.25rem;
  width: 44px;
  height: 44px;
  font-size: 1.9rem;
}
.lb-prev, .lb-next {
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  font-size: 2.4rem;
  padding-bottom: 4px;
}
.lb-prev:hover, .lb-next:hover { transform: translateY(-50%) scale(1.05); }
.lb-prev { left: 1.5rem; }
.lb-next { right: 1.5rem; }
.lb-counter {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, .75);
  font-size: .9rem;
  letter-spacing: .05em;
  font-variant-numeric: tabular-nums;
}
@media (max-width: 600px) {
  .lightbox { padding: 1rem; }
  .lb-close { top: .75rem; right: .75rem; width: 40px; height: 40px; font-size: 1.7rem; }
  .lb-prev, .lb-next { width: 44px; height: 44px; font-size: 2rem; }
  .lb-prev { left: .5rem; }
  .lb-next { right: .5rem; }
}
.gallery-tile:nth-child(3n) { background: linear-gradient(135deg, rgba(29,78,216,.14), rgba(29,78,216,0)), var(--card); }
.gallery-tile:nth-child(5n) { background: linear-gradient(135deg, rgba(29,78,216,.12), rgba(29,78,216,0)), var(--card); }

/* ───── CONTACTO ───── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.6rem;
}
.contact-card {
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: 18px;
  padding: 1.6rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  transition: border-color .25s ease, transform .25s ease;
  position: relative;
}
.contact-card:hover {
  border-color: var(--magenta);
  transform: translateY(-3px);
}
.cc-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--grad-soft);
  border: 1px solid var(--borde2);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  margin-bottom: .3rem;
}
.cc-label {
  font-size: .65rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--gris);
  font-weight: 700;
}
.cc-value {
  font-size: 1rem;
  color: var(--blanco);
  font-weight: 500;
  line-height: 1.45;
}
.cc-link {
  margin-top: auto;
  padding-top: .5rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--magenta);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  transition: gap .2s ease;
}
.cc-link:hover { gap: .7rem; }
.cc-link.pending {
  color: var(--gris2);
  pointer-events: none;
}
.cc-link.pending::after {
  content: '• pendiente';
  font-size: .62rem;
  color: var(--gris3);
  margin-left: .3rem;
}

/* ───── FOOTER ───── */
footer {
  border-top: 1px solid var(--borde);
  background: linear-gradient(180deg, transparent, rgba(15,23,41,.04));
  padding: 3rem 1.5rem 2rem;
  margin-top: 2rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: flex-start;
  justify-content: space-between;
}
.footer-brand { display: flex; align-items: center; gap: .9rem; }
.footer-brand img { width: 44px; }
.footer-brand .fb-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.3rem;
  letter-spacing: .12em;
  color: var(--blanco);
}
.footer-brand .fb-sub {
  font-size: .65rem;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--gris);
}
.footer-meta {
  font-size: .78rem;
  color: var(--gris);
  line-height: 1.8;
}
.footer-meta a { color: var(--magenta); font-weight: 500; }
.footer-meta a:hover { text-decoration: underline; }
.footer-copy {
  width: 100%;
  padding-top: 1.8rem;
  margin-top: 1.2rem;
  border-top: 1px solid var(--borde);
  font-size: .72rem;
  color: var(--gris2);
  letter-spacing: .08em;
}

/* ───── RESPONSIVE ───── */
/* Nav scrollable en pantallas chicas (brand fijo · solo los links scrollean) */
@media (max-width: 960px) {
  nav.main-nav { overflow: hidden; }
  .nav-inner {
    flex-wrap: nowrap;
    max-width: 100%;
    gap: .6rem;
  }
  .nav-brand {
    flex-shrink: 0;
    position: relative;
    z-index: 2;
  }
  .nav-links {
    flex: 1;
    min-width: 0;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    mask-image: linear-gradient(to right, transparent, #000 14px, #000 calc(100% - 22px), transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, #000 14px, #000 calc(100% - 22px), transparent);
    padding-left: 12px;
    padding-right: 18px;
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { white-space: nowrap; flex-shrink: 0; }
}
@media (max-width: 820px) {
  .feature-grid { grid-template-columns: 1fr; }
  .schedule-grid-real { grid-template-columns: repeat(4, 1fr); }
  .nav-brand .nb-sub { display: none; }
  .nav-links a { padding: .45rem .8rem; font-size: .72rem; }
}
@media (max-width: 560px) {
  header.hero { padding: 3rem 1.1rem 2.6rem; }
  .logo-ring { width: 130px; height: 130px; }
  .hero-kanji { font-size: clamp(3rem, 13vw, 5rem); margin-bottom: -1rem; }
  .hero h1 { letter-spacing: .06em; font-size: clamp(2rem, 10vw, 3.2rem); }
  .hero .subtitle { letter-spacing: .28em; font-size: .72rem; }
  .hero .meta { letter-spacing: .14em; font-size: .66rem; white-space: normal; }
  .hero .meta .dot { margin: 0 .5rem; }
  .hero-cta { flex-direction: column; width: min(100%, 280px); margin-left: auto; margin-right: auto; gap: .6rem; }
  .hero-cta .btn { justify-content: center; width: 100%; padding: .85rem 1.3rem; font-size: .75rem; }
  .schedule-grid-real { grid-template-columns: repeat(2, 1fr); }
  main { padding: 3rem 1.1rem 4rem; max-width: 100vw; }
  main > section > * { max-width: 100%; }
  main p, main .sec-lead { max-width: 100% !important; overflow-wrap: break-word; word-break: normal; }
  section { margin-bottom: 4rem; scroll-margin-top: 72px; }
  .feature-card { min-height: auto; padding: 1.6rem 1.4rem 1.8rem; }
  .nav-links { gap: 0; }
  .nav-links a { padding: .45rem .7rem; font-size: .68rem; letter-spacing: .04em; }
  .nav-brand .nb-name { font-size: .95rem; }
  .sched-card { min-height: 130px; }
  .sc-hour { font-size: 1.3rem; }
  /* Evitar overflow horizontal en descripciones y títulos */
  .sec-lead, .ic-bio, .cc-value { max-width: 100%; word-wrap: break-word; overflow-wrap: break-word; }
  .contact-grid { grid-template-columns: 1fr; }
  /* (overrides de #programa y #principios al final para que ganen en especificidad/orden) */
}
@media (max-width: 400px) {
  .nav-links a { font-size: .64rem; padding: .4rem .5rem; }
  .hero h1 { letter-spacing: .05em; }
  .hero .meta { letter-spacing: .1em; }
  .schedule-grid-real { gap: .4rem; }
  .sched-card { padding: .8rem .6rem .9rem; min-height: 118px; }
  .sc-day { font-size: 1rem; }
  .sc-hour { font-size: 1.15rem; }
  .sc-meta { font-size: .6rem; letter-spacing: .1em; }
}

/* ───── UTILS ───── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ════════════════════════════════════════════════════════════════
   PROGRAMA — contenido embebido (acc + tabs + drills + defensa)
   ════════════════════════════════════════════════════════════════ */
#programa .tabs-nav {
  background: rgba(255,255,255,.65);
  border: 1px solid var(--borde);
  border-radius: 999px;
  display: flex;
  gap: .4rem;
  padding: .4rem;
  margin: 1.6rem 0 1.8rem;
  flex-wrap: wrap;
  backdrop-filter: blur(8px);
}
#programa .tabs-nav button {
  flex: 1 1 auto;
  background: transparent;
  border: 1px solid transparent;
  color: var(--gris);
  padding: .6rem 1.1rem;
  font-family: 'Inter', sans-serif;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .06em;
  cursor: pointer;
  border-radius: 999px;
  transition: all .2s;
  white-space: nowrap;
  min-width: 120px;
}
#programa .tabs-nav button:hover { color: #fff; background: var(--glass); }
#programa .tabs-nav button.active {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 14px -4px rgba(220,38,38,.55);
}

#programa .tab-panel { display: none; animation: fadeIn .35s ease; }
#programa .tab-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* Clase cards */
#programa .clase-list { display: flex; flex-direction: column; gap: .6rem; margin-bottom: 1.3rem; }
#programa .clase-row {
  display: flex; align-items: center; gap: 1rem;
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: 12px;
  padding: .95rem 1.1rem;
  transition: border-color .2s, transform .2s;
}
#programa .clase-row:hover { border-color: var(--magenta); transform: translateX(3px); }
#programa .clase-mins {
  background: var(--grad);
  border-radius: 10px;
  padding: .5rem .7rem;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: .03em;
  color: #fff;
  min-width: 58px;
  text-align: center;
  line-height: 1;
  flex-shrink: 0;
}
#programa .clase-mins small { font-size: .6rem; font-weight: 500; display: block; letter-spacing: .1em; margin-top: 2px; }
#programa .clase-info h3 { font-size: .95rem; font-weight: 700; color: var(--blanco); }
#programa .clase-info p { font-size: .8rem; color: var(--gris); margin-top: .15rem; }

#programa .total-pill {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--card2);
  border: 1px solid var(--borde);
  border-radius: 12px;
  padding: .95rem 1.3rem;
  margin-bottom: 1.6rem;
}
#programa .total-pill span:first-child { font-size: .82rem; color: var(--gris); font-weight: 500; }
#programa .total-pill span:last-child {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem; letter-spacing: .05em;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

#programa .p-prog-label {
  font-size: .7rem; text-transform: uppercase; letter-spacing: .15em;
  color: var(--gris); margin-bottom: .6rem; font-weight: 600;
}
#programa .prog-track {
  display: flex; border-radius: 10px; overflow: hidden;
  height: 38px; border: 1px solid var(--borde);
}
#programa .prog-seg {
  display: flex; align-items: center; justify-content: center;
  font-size: .68rem; font-weight: 700; color: #fff;
  position: relative; cursor: default;
  transition: filter .15s;
}
#programa .prog-seg:hover { filter: brightness(1.3); }
#programa .prog-seg .tt {
  display: none; position: absolute;
  bottom: calc(100% + 6px); left: 50%; transform: translateX(-50%);
  background: #0f1729; color: #fff; border: 1px solid var(--borde);
  padding: .3rem .6rem; border-radius: 6px;
  white-space: nowrap; font-size: .7rem; z-index: 5;
}
#programa .prog-seg:hover .tt { display: block; }

/* Badges */
#programa .badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 42px; height: 42px;
  border-radius: 11px;
  background: var(--grad);
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.05rem; letter-spacing: .04em;
  color: #fff;
  flex-shrink: 0;
}
#programa .badge.sm {
  min-width: 32px; height: 32px;
  border-radius: 7px;
  font-size: .85rem;
}

/* Acordeón Ciclos */
#programa .acc-head {
  display: flex; align-items: center; gap: 1rem;
  background: var(--card);
  border: 1px solid var(--borde);
  border-left: 4px solid var(--magenta);
  border-radius: 12px;
  padding: 1rem 1.2rem;
  margin-bottom: .6rem;
  cursor: pointer;
  transition: background .2s, border-left-color .2s;
  user-select: none;
}
#programa .acc-head:hover { background: var(--card2); border-left-color: var(--purpura); }
#programa .acc-head .acc-meta { flex: 1; }
#programa .acc-head .acc-label {
  font-size: .66rem; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--gris); margin-bottom: .2rem;
}
#programa .acc-head .acc-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.15rem; letter-spacing: .04em;
  color: var(--blanco); font-weight: 400;
}
#programa .acc-head .acc-right { font-size: .72rem; color: var(--gris); }
#programa .chevron {
  color: var(--gris2); font-size: 1rem;
  transition: transform .25s; flex-shrink: 0;
}
#programa .acc-head.open .chevron { transform: rotate(180deg); }

#programa .acc-body { display: none; padding: .25rem 0 1rem; }
#programa .acc-body.open { display: block; }

#programa .acc-item {
  display: flex; align-items: center; gap: .9rem;
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: 10px;
  padding: .8rem 1rem;
  margin-bottom: .45rem;
  cursor: pointer;
  transition: background .15s;
  user-select: none;
}
#programa .acc-item:hover { background: var(--card2); }
#programa .acc-item .item-title {
  flex: 1; font-size: .9rem; font-weight: 600; color: var(--blanco);
}
#programa .item-chevron {
  color: var(--gris2); font-size: .85rem;
  transition: transform .2s; flex-shrink: 0;
}
#programa .acc-item.open .item-chevron { transform: rotate(180deg); }

#programa .item-content {
  display: none;
  background: rgba(15,23,41,.03);
  border: 1px solid var(--borde);
  border-top: none;
  border-radius: 0 0 10px 10px;
  margin-top: -.45rem;
  margin-bottom: .45rem;
  padding: .9rem 1rem .9rem 3.2rem;
}
#programa .item-content.open { display: block; }

#programa .ciclo-wrap { display: flex; flex-direction: column; gap: .5rem; }
#programa .ciclo-pill {
  border-radius: 8px;
  padding: .55rem .85rem;
  font-size: .82rem;
  line-height: 1.5;
  color: var(--text-strong);
}
#programa .ciclo-pill.c1 {
  background: rgba(220,38,38,.08);
  border-left: 3px solid var(--magenta);
}
#programa .ciclo-pill.c2 {
  background: rgba(29,78,216,.08);
  border-left: 3px solid var(--purpura);
}
#programa .ciclo-pill .clabel {
  font-size: .6rem; font-weight: 700;
  letter-spacing: .15em; text-transform: uppercase;
  color: var(--gris); margin-bottom: .2rem;
}
#programa .ciclo-pill.c1 .clabel { color: var(--magenta2); }
#programa .ciclo-pill.c2 .clabel { color: var(--purpura2); }
#programa .ciclo-pill a { color: #2563eb; }

/* Reglas del tatami */
#programa .reglas-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .9rem;
}
#programa .reglas-figure img {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  border-radius: 16px;
  border: 1px solid var(--borde);
  box-shadow: 0 18px 40px -22px rgba(15,23,41,.35);
}
#programa .reglas-figure figcaption {
  font-size: .82rem;
  color: var(--gris);
  letter-spacing: .04em;
  text-align: center;
}

/* Divider */
#programa .p-divider {
  font-size: .7rem; font-weight: 700; letter-spacing: .2em;
  text-transform: uppercase; color: var(--gris2);
  display: flex; align-items: center; gap: .8rem;
  margin: 2rem 0 1rem;
}
#programa .p-divider::before, #programa .p-divider::after {
  content: ''; flex: 1; height: 1px;
  background: linear-gradient(90deg, transparent, var(--borde), transparent);
}

/* Drills */
#programa .drill-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
#programa .drill-box {
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: 14px;
  overflow: hidden;
}
#programa .drill-box h3 {
  background: var(--card2);
  padding: .8rem 1.1rem;
  font-size: .85rem; font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  border-bottom: 1px solid var(--borde);
  color: var(--blanco);
}
#programa .drill-ul { list-style: none; padding: .6rem .5rem; }
#programa .drill-ul li {
  display: flex; align-items: flex-start; gap: .5rem;
  padding: .55rem .7rem; border-radius: 7px;
  font-size: .85rem; color: var(--blanco);
  transition: background .12s;
}
#programa .drill-ul li:hover { background: rgba(255,255,255,.03); }
#programa .drill-ul li::before { content: '▸'; color: var(--magenta); flex-shrink: 0; font-weight: 700; }
#programa .drill-ref {
  margin-top: 1.2rem;
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: 10px;
  padding: .8rem 1.1rem;
  font-size: .82rem; color: var(--gris);
  display: flex; align-items: center; gap: .55rem;
}
#programa .drill-ref a { color: #2563eb; text-decoration: none; }
#programa .drill-ref a:hover { text-decoration: underline; }

/* Defensa */
#programa .def-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .85rem;
}
#programa .def-card {
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: 14px;
  padding: 1.1rem 1.1rem;
  display: flex; align-items: center; gap: .9rem;
  transition: border-color .2s, transform .15s;
}
#programa .def-card:hover { border-color: var(--magenta); transform: translateY(-2px); }
#programa .def-card .di { font-size: 1.6rem; flex-shrink: 0; }
#programa .def-card h3 { font-size: .86rem; font-weight: 600; line-height: 1.3; color: var(--blanco); }

/* Especiales */
#programa .esp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .85rem; margin-top: .5rem; }
#programa .esp-card {
  background: var(--card);
  border: 1px dashed var(--borde);
  border-radius: 14px;
  padding: 1.1rem 1.2rem;
}
#programa .esp-card h4 { font-size: .95rem; font-weight: 700; color: var(--blanco); margin-bottom: .45rem; }
#programa .esp-card p { font-size: .83rem; color: var(--gris); line-height: 1.55; }
#programa .esp-freq {
  display: inline-block; margin-top: .55rem;
  font-size: .65rem; background: rgba(255,255,255,.04);
  border: 1px solid var(--borde);
  padding: .18rem .6rem;
  border-radius: 999px; color: var(--gris);
  letter-spacing: .08em; text-transform: uppercase;
}

/* ════════════════════════════════════════════════════════════════
   PRINCIPIOS — 32 cards con partes y gradientes por parte
   ════════════════════════════════════════════════════════════════ */
#principios {
  --accent-1: #dc2626;
  --accent-2: #b91c1c;
  --accent-3: #1e3a8a;
  --accent-4: #1d4ed8;
  --accent-5: #0891b2;
  --part1-gradient: linear-gradient(135deg, #dc2626, #b91c1c);
  --part2-gradient: linear-gradient(135deg, #ea580c, #c2410c);
  --part3-gradient: linear-gradient(135deg, #1e3a8a, #1d4ed8);
  --part4-gradient: linear-gradient(135deg, #2563eb, #0891b2);
}

#principios .parts-nav-wrap {
  display: flex; flex-wrap: wrap; gap: .5rem;
  margin: 1.6rem 0 2rem;
  align-items: center;
}
#principios .p-nav-btn {
  padding: .65rem 1.3rem;
  background: var(--glass);
  border: 1px solid var(--glass-b);
  border-radius: 999px;
  color: var(--blanco);
  font-family: 'Inter', sans-serif;
  font-size: .78rem; font-weight: 600;
  letter-spacing: .05em;
  cursor: pointer;
  transition: all .25s ease;
  position: relative; overflow: hidden;
  backdrop-filter: blur(6px);
}
#principios .p-nav-btn span { position: relative; z-index: 1; }
#principios .p-nav-btn::before {
  content: ''; position: absolute; inset: 0;
  opacity: 0; transition: opacity .25s ease;
}
#principios .p-nav-btn[data-part="1"]::before { background: var(--part1-gradient); }
#principios .p-nav-btn[data-part="2"]::before { background: var(--part2-gradient); }
#principios .p-nav-btn[data-part="3"]::before { background: var(--part3-gradient); }
#principios .p-nav-btn[data-part="4"]::before { background: var(--part4-gradient); }
#principios .p-nav-btn:hover {
  color: #fff; border-color: transparent; transform: translateY(-2px);
}
#principios .p-nav-btn:hover::before { opacity: 1; }
#principios .control-btn {
  margin-left: auto;
  padding: .55rem 1.1rem;
  background: transparent;
  border: 1px solid var(--glass-b);
  border-radius: 999px;
  color: var(--gris);
  font-family: 'Inter', sans-serif;
  font-size: .75rem; font-weight: 500;
  cursor: pointer;
  transition: color .2s, border-color .2s;
}
#principios .control-btn:hover { color: #fff; border-color: rgba(255,255,255,.2); }

#principios .part { margin-bottom: 2.5rem; scroll-margin-top: 90px; }

#principios .part-header {
  display: flex; align-items: center; gap: 1.2rem;
  margin-bottom: 1rem;
  padding: 1.2rem 1.4rem;
  background: var(--glass);
  border: 1px solid var(--glass-b);
  border-radius: 18px;
  position: relative; overflow: hidden;
  backdrop-filter: blur(6px);
  cursor: pointer; user-select: none;
  transition: background .2s;
}
#principios .part-header:hover { background: rgba(255,255,255,.04); }
#principios .part-chevron {
  color: var(--gris2); font-size: 1rem;
  transition: transform .25s; flex-shrink: 0;
}
#principios .part.open .part-chevron { transform: rotate(180deg); }
#principios .part-header::before {
  content: ''; position: absolute;
  top: 0; left: 0; width: 4px; height: 100%;
}
#principios .part[data-part="1"] .part-header::before { background: var(--part1-gradient); }
#principios .part[data-part="2"] .part-header::before { background: var(--part2-gradient); }
#principios .part[data-part="3"] .part-header::before { background: var(--part3-gradient); }
#principios .part[data-part="4"] .part-header::before { background: var(--part4-gradient); }

#principios .part-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.35rem; letter-spacing: .04em;
  color: #fff; flex-shrink: 0;
}
#principios .part[data-part="1"] .part-icon { background: var(--part1-gradient); }
#principios .part[data-part="2"] .part-icon { background: var(--part2-gradient); }
#principios .part[data-part="3"] .part-icon { background: var(--part3-gradient); }
#principios .part[data-part="4"] .part-icon { background: var(--part4-gradient); }

#principios .part-info { flex: 1; min-width: 0; }
#principios .part-label {
  font-size: .68rem; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--gris); margin-bottom: .2rem;
}
#principios .part-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem; letter-spacing: .04em;
  color: var(--blanco); font-weight: 400;
}
#principios .part-range {
  font-size: .78rem; color: var(--gris2);
  font-weight: 500; letter-spacing: .05em;
}

#principios .principles-grid { display: none; gap: .6rem; }
#principios .part.open .principles-grid { display: grid; }

#principios .principle-card {
  background: var(--glass);
  border: 1px solid var(--glass-b);
  border-radius: 14px;
  overflow: hidden;
  transition: background .25s, border-color .25s, transform .25s;
  backdrop-filter: blur(4px);
}
#principios .principle-card:hover {
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.14);
  transform: translateX(3px);
}
#principios .principle-header {
  display: flex; align-items: center;
  padding: 1rem 1.3rem;
  cursor: pointer; gap: 1rem;
  user-select: none;
}
#principios .principle-number {
  width: 42px; height: 42px;
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.05rem; letter-spacing: .04em;
  flex-shrink: 0; position: relative; overflow: hidden;
}
#principios .principle-number::before {
  content: ''; position: absolute; inset: 0; opacity: .2;
}
#principios .principle-number span { position: relative; z-index: 1; }
#principios .part[data-part="1"] .principle-number::before { background: var(--part1-gradient); }
#principios .part[data-part="2"] .principle-number::before { background: var(--part2-gradient); }
#principios .part[data-part="3"] .principle-number::before { background: var(--part3-gradient); }
#principios .part[data-part="4"] .principle-number::before { background: var(--part4-gradient); }
#principios .part[data-part="1"] .principle-number { color: var(--accent-1); border: 1px solid rgba(220,38,38,.32); }
#principios .part[data-part="2"] .principle-number { color: #2563eb; border: 1px solid rgba(29,78,216,.32); }
#principios .part[data-part="3"] .principle-number { color: var(--accent-4); border: 1px solid rgba(67,97,238,.32); }
#principios .part[data-part="4"] .principle-number { color: var(--accent-5); border: 1px solid rgba(76,201,240,.32); }

#principios .principle-info { flex: 1; min-width: 0; }
#principios .principle-name {
  font-weight: 600; font-size: 1rem; color: var(--blanco);
  line-height: 1.3;
}
#principios .principle-name-en {
  color: var(--gris2); font-weight: 400; font-size: .78rem;
  margin-left: .4rem;
}
#principios .expand-icon {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,.05);
  display: flex; align-items: center; justify-content: center;
  color: var(--gris); transition: all .25s ease;
  flex-shrink: 0;
}
#principios .expand-icon svg {
  width: 14px; height: 14px;
  transition: transform .3s ease;
}
#principios .principle-card.expanded .expand-icon { background: rgba(255,255,255,.1); color: #fff; }
#principios .principle-card.expanded .expand-icon svg { transform: rotate(180deg); }

#principios .principle-content {
  max-height: 0; overflow: hidden;
  transition: max-height .4s cubic-bezier(.4,0,.2,1);
}
#principios .principle-card.expanded .principle-content { max-height: 800px; }
#principios .principle-body {
  padding: 0 1.3rem 1.3rem;
  padding-left: calc(42px + 2.3rem);
}
#principios .principle-description {
  color: var(--blanco);
  font-size: .92rem; line-height: 1.75;
  margin-bottom: 1rem; font-weight: 300;
}
#principios .principle-example {
  background: rgba(15,23,41,.05);
  border-radius: 10px;
  padding: .95rem 1.15rem;
  position: relative; overflow: hidden;
}
#principios .principle-example::before {
  content: ''; position: absolute;
  top: 0; left: 0; width: 3px; height: 100%;
}
#principios .part[data-part="1"] .principle-example::before { background: var(--part1-gradient); }
#principios .part[data-part="2"] .principle-example::before { background: var(--part2-gradient); }
#principios .part[data-part="3"] .principle-example::before { background: var(--part3-gradient); }
#principios .part[data-part="4"] .principle-example::before { background: var(--part4-gradient); }
#principios .example-label {
  font-size: .65rem; font-weight: 700;
  letter-spacing: .15em; text-transform: uppercase;
  margin-bottom: .4rem;
}
#principios .part[data-part="1"] .example-label { color: var(--accent-1); }
#principios .part[data-part="2"] .example-label { color: #2563eb; }
#principios .part[data-part="3"] .example-label { color: var(--accent-4); }
#principios .part[data-part="4"] .example-label { color: var(--accent-5); }
#principios .example-text {
  color: var(--blanco);
  font-size: .88rem; line-height: 1.7;
  font-weight: 300;
}

#principios .princ-credit {
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--borde);
  text-align: center;
  font-size: .82rem;
  color: var(--gris2);
  font-style: italic;
}
#principios .princ-credit a { color: var(--magenta); font-style: normal; }
#principios .princ-credit a:hover { text-decoration: underline; }

/* Responsive embebidos */
@media (max-width: 680px) {
  #programa .drill-cols,
  #programa .esp-grid { grid-template-columns: 1fr; }
  #programa .def-grid { grid-template-columns: 1fr 1fr; }
  #programa .item-content { padding-left: 1rem; }
  #programa .total-pill { flex-direction: column; align-items: flex-start; gap: .3rem; }
  #programa .acc-head .acc-right { display: none; }
  #programa .tabs-nav button { min-width: auto; padding: .55rem .85rem; font-size: .72rem; }
  #principios .part-header { flex-direction: column; align-items: flex-start; gap: .8rem; }
  #principios .principle-body { padding-left: 1.2rem; }
  #principios .principle-header { padding: .9rem 1rem; }
  #principios .control-btn { margin-left: 0; }
  #principios .parts-nav-wrap { gap: .35rem; }
  #principios .p-nav-btn { padding: .5rem .9rem; font-size: .72rem; }
}
@media (max-width: 560px) {
  /* Programa: tabs con scroll horizontal si no caben */
  #programa .tabs-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: .3rem;
    padding: .35rem;
    border-radius: 999px;
    mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 18px), transparent);
    -webkit-mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 18px), transparent);
  }
  #programa .tabs-nav::-webkit-scrollbar { display: none; }
  #programa .tabs-nav button {
    flex: 0 0 auto;
    min-width: 0;
    width: auto;
    padding: .55rem .9rem;
    font-size: .72rem;
    letter-spacing: .02em;
    white-space: nowrap;
  }
  /* Principios: botones de parte más compactos, "Expandir todo" full-width abajo */
  #principios .parts-nav-wrap { gap: .3rem; }
  #principios .p-nav-btn { padding: .5rem .7rem; font-size: .68rem; flex: 1 1 auto; }
  #principios .control-btn {
    margin-left: 0; width: 100%; text-align: center; order: 99;
    padding: .55rem 1rem;
  }
}
@media (max-width: 420px) {
  #programa .def-grid { grid-template-columns: 1fr; }
}

/* ───── ICONOS (SVG inline) ───── */
.ico {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  flex-shrink: 0;
  stroke-width: 2;
}
.cc-icon .ico { width: 22px; height: 22px; color: var(--magenta); }
#programa .tabs-nav button .ico { width: 15px; height: 15px; margin-right: .4rem; vertical-align: -0.18em; }
#programa .total-pill span:first-child .ico { width: 16px; height: 16px; margin-right: .45rem; color: var(--magenta); }
#programa .esp-card h4 .ico { width: 18px; height: 18px; margin-right: .4rem; color: var(--magenta); }
#programa .drill-box h3 .ico { width: 16px; height: 16px; margin-right: .45rem; vertical-align: -0.18em; }
#programa .def-card .di .ico { width: 26px; height: 26px; color: var(--magenta); stroke-width: 1.8; }
#programa .drill-ref .ico { width: 16px; height: 16px; margin-right: .4rem; color: var(--magenta); vertical-align: -0.18em; }
#principios .example-label .ico { width: 13px; height: 13px; margin-right: .35rem; vertical-align: -0.15em; }