/* EIRI Talleres Battlebots 2026 - sitio publico */

:root {
  --bg-0:       #04080f;
  --bg-1:       #080e1a;
  --bg-2:       #0d1625;
  --bg-card:    rgba(10, 20, 40, 0.85);
  --blue-900:   #0a2547;
  --blue-700:   #1565C0;
  --blue-500:   #1976D2;
  --blue-400:   #2196F3;
  --blue-300:   #42A5F5;
  --blue-200:   #90CAF9;
  --cyan:       #00E5FF;
  --white:      #FFFFFF;
  --text:       #dce8f8;
  --text-dim:   #6a84a0;
  --border:     rgba(33,150,243,0.15);
  --border-md:  rgba(33,150,243,0.30);
  --navy:       #012232;
  --navy-2:     #023349;
  --logo-h:     64px;
  --nav-h:      56px;
  --header-h:   120px;
  --f-tech:     'Orbitron', monospace;
  --f-body:     'Inter', sans-serif;
  --ease-out:   cubic-bezier(0.25,0.46,0.45,0.94);
  --ease-spring:cubic-bezier(0.34,1.56,0.64,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { font-family: var(--f-body); background: var(--bg-0); color: var(--text); overflow-x: hidden; max-width: 100%; line-height: 1.6; }
img  { max-width: 100%; height: auto; display: block; }
a    { text-decoration: none; color: inherit; }
button { cursor: pointer; }

.container  { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.section    { padding: 6rem 0; scroll-margin-top: 70px; }

.label { font-family: var(--f-tech); font-size: 0.66rem; letter-spacing: 0.32em; text-transform: uppercase; color: var(--blue-400); margin-bottom: 0.75rem; } .section-title { font-family: var(--f-tech); font-size: clamp(1.8rem, 4.5vw, 3rem); font-weight: 900; color: var(--white); line-height: 1.1; margin-bottom: 0.9rem; } .section-desc { font-size: 0.97rem; color: var(--text-dim); max-width: 560px; } .section-header { text-align: center; margin-bottom: 3.5rem; } .section-header .section-desc { margin: 0 auto; } .body-text { font-size: 0.95rem; color: var(--text-dim); line-height: 1.8; margin-bottom: 0.85rem; } .body-text strong { color: var(--blue-300); font-weight: 600; } /* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.78rem 1.8rem;
  border-radius: 8px;
  font-family: var(--f-tech);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  transition: all 0.22s var(--ease-out);
}
.btn svg { width: 15px; height: 15px; }
.btn-primary { background: var(--blue-700); color: var(--white); box-shadow: 0 4px 20px rgba(21,101,192,0.4); }
.btn-primary:hover { background: var(--blue-400); box-shadow: 0 6px 28px rgba(33,150,243,0.55); transform: translateY(-2px); }
.btn-ghost-outline { background: transparent; color: var(--blue-300); border: 1px solid rgba(33,150,243,0.35); }
.btn-ghost-outline:hover { background: rgba(33,150,243,0.08); border-color: var(--blue-400); color: var(--blue-200); transform: translateY(-1px); }

/* Header de dos niveles: franja blanca de logos + barra navy de navegacion */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
}

.header-logos {
  background: #ffffff;
  height: var(--logo-h);
  overflow: hidden;
  border-bottom: 1px solid rgba(1,34,50,0.08);
  transition: height 0.4s var(--ease-out), opacity 0.3s ease;
}
.header-logos-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
  height: var(--logo-h);
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2.5rem;
}
.header-logo-udd { height: 46px; max-width: 40vw; object-fit: contain; }
.header-logo-inf { height: 30px; max-width: 50vw; object-fit: contain; filter: brightness(0); opacity: 0.8; }
.header-logo-sep { width: 1px; height: 34px; background: rgba(1,34,50,0.14); flex-shrink: 0; }

/* Al hacer scroll, la franja de logos se colapsa y queda solo la barra navy */
.site-header.scrolled .header-logos {
  height: 0;
  opacity: 0;
  border-bottom-color: transparent;
}

.navbar {
  background: var(--navy);
  box-shadow: 0 2px 16px rgba(1,34,50,0.25);
  transition: box-shadow 0.3s;
}
.site-header.scrolled .navbar {
  box-shadow: 0 6px 28px rgba(0,0,0,0.45);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  padding: 0 2.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

.nav-brand { display: flex; flex-direction: column; line-height: 1.1; }
.nav-eiri  { font-family: var(--f-tech); font-size: 1rem; font-weight: 900; color: var(--white); letter-spacing: 0.3em; }
.nav-sub   { font-size: 0.56rem; color: var(--blue-200); letter-spacing: 0.18em; text-transform: uppercase; }

.nav-links { display: flex; list-style: none; gap: 0.2rem; }
.nav-links a {
  display: block;
  padding: 0.45rem 0.95rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: rgba(255,255,255,0.78);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 6px;
  transition: color 0.18s, background 0.18s;
}
.nav-links a:hover { color: var(--white); background: rgba(255,255,255,0.1); }

.nav-burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 4px; }
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: all 0.22s; }
.nav-burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

.nav-mobile { display: none; flex-direction: column; background: var(--navy-2); border-top: 1px solid rgba(255,255,255,0.08); }
.nav-mobile.open { display: flex; }
.nav-m-link { padding: 0.9rem 2rem; font-size: 0.78rem; font-weight: 600; color: rgba(255,255,255,0.8); border-bottom: 1px solid rgba(255,255,255,0.06); text-transform: uppercase; letter-spacing: 0.08em; transition: all 0.18s; }
.nav-m-link:last-child { border-bottom: none; }
.nav-m-link:hover { color: var(--white); background: rgba(255,255,255,0.06); padding-left: 2.5rem; }

/* Hero con degradado azul electrico */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, #012232 0%, #023a5e 45%, #0a4d8c 100%);
}
.hero-grid {
  position: absolute; inset: 0; z-index: 1;
  background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 0%, transparent 100%);
}
.hero-glow {
  position: absolute; z-index: 1;
  top: -10%; right: -5%;
  width: 50vw; height: 50vw;
  max-width: 720px; max-height: 720px;
  background: radial-gradient(circle, rgba(0,229,255,0.18) 0%, transparent 60%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 480px minmax(0, 1fr);
  align-items: center;
  width: 100%;
  max-width: 1280px;
  padding: var(--header-h) 3rem 3rem;
  gap: 3.5rem;
}

.hero-content { text-align: left; padding-bottom: 2rem; max-width: 600px; min-width: 0; justify-self: center; }

/* Carrusel de LEDs a la izquierda */
.hero-carousel {
  position: relative;
  order: -1;
  height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.carousel-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.75) rotate(-7deg);
  filter: blur(10px);
  transition: opacity 0.7s var(--ease-out), transform 0.8s var(--ease-spring), filter 0.6s ease;
  pointer-events: none;
}
.carousel-slide.active {
  opacity: 1;
  transform: scale(1) rotate(0deg);
  filter: blur(0);
  pointer-events: auto;
}
.carousel-led {
  width: clamp(260px, 32vw, 400px);
  height: auto;
  filter: drop-shadow(0 0 52px var(--glow)) drop-shadow(0 0 90px var(--glow));
  animation: ledFloat 4s ease-in-out infinite;
}
@keyframes ledFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
.carousel-dots {
  position: absolute;
  bottom: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 7px;
  align-items: center;
}
.cdot {
  width: 7px; height: 7px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.22);
  cursor: pointer;
  transition: all 0.35s ease;
  padding: 0;
}
.cdot.active {
  background: rgba(255,255,255,0.9);
  width: 22px;
  border-radius: 4px;
}

.hero-kicker {
  display: inline-block;
  font-family: var(--f-tech);
  font-size: clamp(0.62rem,1.6vw,0.84rem);
  font-weight: 600;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.2rem;
}

.hero-title { display: flex; flex-direction: column; gap: 0.15rem; margin-bottom: 1rem; }
.glitch {
  font-family: var(--f-tech);
  font-size: clamp(2.4rem,5vw,4.4rem);
  overflow-wrap: anywhere;
  font-weight: 900;
  color: var(--white);
  text-shadow: 0 0 40px rgba(33,150,243,0.55), 0 0 80px rgba(33,150,243,0.22);
  position: relative;
  display: block;
  letter-spacing: 0.04em;
}
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0; width: 100%;
}
.glitch::before { color: #00E5FF; animation: glitchA 4.5s infinite; clip-path: polygon(0 0,100% 0,100% 38%,0 38%); z-index: -1; }
.glitch::after  { color: #E040FB; animation: glitchB 4.5s infinite; clip-path: polygon(0 62%,100% 62%,100% 100%,0 100%); z-index: -1; }
@keyframes glitchA {
  0%,88%,100% { transform:translate(0); opacity:0; }
  90% { transform:translate(-4px,-2px); opacity:.9; }
  92% { transform:translate(4px,2px);  opacity:.9; }
  94% { transform:translate(-2px,0);   opacity:.9; }
  96% { transform:translate(0);        opacity:0; }
}
@keyframes glitchB {
  0%,89%,100% { transform:translate(0); opacity:0; }
  91% { transform:translate(4px,2px);  opacity:.9; }
  93% { transform:translate(-4px,-2px);opacity:.9; }
  95% { transform:translate(2px,0);    opacity:.9; }
  97% { transform:translate(0);        opacity:0; }
}

.hero-meta { font-family: var(--f-tech); font-size: clamp(0.58rem,1.4vw,0.78rem); color: var(--blue-200); letter-spacing: 0.22em; text-transform: uppercase; margin-bottom: 1rem; }
.hero-desc { font-size: clamp(0.9rem,1.4vw,1.02rem); color: rgba(220,232,248,0.85); max-width: 520px; margin: 0 0 2rem; line-height: 1.75; }
.hero-cta  { display: flex; gap: 1rem; justify-content: flex-start; flex-wrap: wrap; }
.hero-cta .btn-ghost-outline { color: var(--white); border-color: rgba(255,255,255,0.35); }
.hero-cta .btn-ghost-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); color: var(--white); }

.hero-scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  color: rgba(255,255,255,0.6);
  animation: scrollBob 2s ease-in-out infinite;
  transition: color 0.2s;
}
.hero-scroll-cue:hover { color: var(--white); }
.hero-scroll-cue svg { width: 22px; height: 22px; }
@keyframes scrollBob {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* Float animations */
.msc-float-a { animation: floatA 4.2s ease-in-out infinite; }
.msc-float-b { animation: floatB 3.8s ease-in-out infinite 0.5s; }
.msc-float-c { animation: floatC 4.6s ease-in-out infinite 1s; }
.msc-float-d { animation: floatD 4s ease-in-out infinite 0.3s; }
@keyframes floatA { 0%,100%{transform:translateY(0) rotate(-2deg)} 50%{transform:translateY(-22px) rotate(2deg)} }
@keyframes floatB { 0%,100%{transform:translateY(0) rotate(2deg) translateX(-18px)} 50%{transform:translateY(-18px) rotate(-2deg) translateX(-18px)} }
@keyframes floatC { 0%,100%{transform:translateY(0) rotate(5deg)} 50%{transform:translateY(-26px) rotate(-3deg)} }
@keyframes floatD { 0%,100%{transform:translateY(0) rotate(-4deg)} 50%{transform:translateY(-20px) rotate(4deg)} }

/* MARQUEE */
.marquee-bar {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
  padding: 0.72rem 0;
  overflow: hidden;
  position: relative;
}
.marquee-bar::before, .marquee-bar::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 80px; z-index: 2;
}
.marquee-bar::before { left: 0; background: linear-gradient(to right, var(--blue-700), transparent); }
.marquee-bar::after  { right: 0; background: linear-gradient(to left, var(--blue-700), transparent); }
.marquee-content {
  display: flex;
  gap: 2rem;
  width: max-content;
  animation: marqueeRun 30s linear infinite;
}
.marquee-content span {
  font-family: var(--f-tech);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  white-space: nowrap;
}
.marquee-content .mdot { width: 4px; height: 4px; border-radius: 50%; background: rgba(255,255,255,0.45); align-self: center; flex-shrink: 0; }
@keyframes marqueeRun { 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }

/* DECORATIVE MASCOTS (scattered across sections) */
.deco-msc {
  position: absolute;
  pointer-events: none;
  z-index: 5;
}
.deco-msc img { object-fit: contain; }

/* Morado: top-left of sessions section */
.sessions-section { position: relative; overflow: visible; }
.deco-msc--morado {
  top: 2rem;
  left: -1.5rem;
  width: 90px;
  transform: rotate(-10deg);
  opacity: 0.55;
}

/* Verde: bottom-right of about section */
.about-section { position: relative; overflow: visible; }
.deco-msc--verde {
  bottom: -2rem;
  right: 2%;
  width: 115px;
  opacity: 0.6;
}

/* Naranjo: top-left of about section */
.deco-msc--naranjo {
  top: 1.5rem;
  left: -1rem;
  width: 80px;
  transform: rotate(9deg);
  opacity: 0.5;
}

/* Rojo: right side of sessions section */
.deco-msc--rojo {
  top: 40%;
  right: -1.2rem;
  width: 75px;
  transform: rotate(-7deg);
  opacity: 0.45;
}

/* SESSIONS ACCORDION */
.sessions-section { background: var(--bg-0); }

/* Search bar */
.sessions-search-wrap { margin-bottom: 2rem; }
.sessions-search {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 1rem;
  transition: border-color 0.2s;
}
.sessions-search:focus-within { border-color: var(--blue-400); }
.sessions-search svg { width: 16px; height: 16px; color: var(--text-dim); flex-shrink: 0; }
.sessions-search input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--white);
  font-size: 0.9rem;
  font-family: var(--f-body);
}
.sessions-search input::placeholder { color: var(--text-dim); }
.search-clear { background: none; border: none; cursor: pointer; color: var(--text-dim); display: flex; padding: 0; }
.search-clear:hover { color: var(--white); }
.active-tag-filters { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.75rem; }
.tag-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(33,150,243,0.15);
  border: 1px solid var(--blue-400);
  color: var(--blue-300);
  border-radius: 100px;
  padding: 0.2rem 0.6rem;
  font-size: 0.72rem;
  cursor: pointer;
  transition: background 0.2s;
}
.tag-filter-chip:hover { background: rgba(33,150,243,0.28); }
.tag-filter-chip svg { width: 10px; height: 10px; }

.sessions-accordion { display: flex; flex-direction: column; gap: 1rem; }
.acc-session.search-hidden { display: none; }

.sessions-loading {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-dim);
  font-size: 0.85rem;
  padding: 2rem 0;
}
.sessions-loading svg { width: 18px; height: 18px; }
@keyframes spin { to { transform: rotate(360deg); } }
.spin { animation: spin 1s linear infinite; display: inline-block; }

/* Session item */
.acc-session {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  backdrop-filter: blur(6px);
  transition: border-color 0.22s;
}
.acc-session:hover { border-color: var(--border-md); }

.acc-session-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  cursor: pointer;
  user-select: none;
  transition: background 0.18s;
}
.acc-session-head:hover { background: rgba(33,150,243,0.04); }

.acc-session-num {
  font-family: var(--f-tech);
  font-size: 0.62rem;
  color: var(--text-dim);
  letter-spacing: 0.2em;
  flex-shrink: 0;
  white-space: nowrap;
}
.acc-session-title {
  flex: 1;
  font-family: var(--f-tech);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
}
.acc-session-date { font-size: 0.76rem; color: var(--blue-300); white-space: nowrap; }

.acc-session-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
  font-size: 0.65rem;
  font-weight: 600;
  flex-shrink: 0;
  white-space: nowrap;
}
.acc-session-badge svg { width: 11px; height: 11px; }
.badge-upcoming  { background: rgba(33,150,243,0.1); color: var(--blue-300); border: 1px solid rgba(33,150,243,0.22); }
.badge-active    { background: rgba(34,197,94,0.1);  color: #22c55e; border: 1px solid rgba(34,197,94,0.22); }
.badge-completed { background: rgba(99,102,241,0.1); color: #a5b4fc; border: 1px solid rgba(99,102,241,0.22); }

.acc-chevron { color: var(--text-dim); transition: transform 0.28s var(--ease-out); flex-shrink: 0; }
.acc-chevron svg { width: 18px; height: 18px; }
.acc-session.open .acc-chevron { transform: rotate(180deg); }

/* Session body */
.acc-session-body {
  display: none;
  padding: 0 1.5rem 1.5rem;
  border-top: 1px solid var(--border);
}
.acc-session.open .acc-session-body { display: block; }

.acc-session-desc { font-size: 0.84rem; color: var(--text-dim); margin-top: 1rem; margin-bottom: 1.5rem; }

/* Empty state */
.no-projects {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 0;
  color: var(--text-dim);
  font-size: 0.82rem;
}
.no-projects svg { width: 16px; height: 16px; opacity: 0.5; }

/* Projects */
.projects-list { display: flex; flex-direction: column; gap: 1.2rem; margin-top: 1rem; }

.project-card {
  background: rgba(8,14,26,0.7);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.project-card-head {
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  cursor: pointer;
  transition: background 0.18s;
}
.project-card-head:hover { background: rgba(33,150,243,0.04); }
.project-card-head-main { flex: 1; min-width: 0; }
.project-card-chevron { color: var(--text-dim); transition: transform 0.28s var(--ease-out); flex-shrink: 0; }
.project-card-chevron svg { width: 16px; height: 16px; }
.project-card.open .project-card-chevron { transform: rotate(180deg); }
.project-card.open .project-card-head { border-bottom: 1px solid var(--border); }
.project-card-body { display: none; }
.project-card.open .project-card-body { display: block; }
.project-card-title {
  font-family: var(--f-tech);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.25rem;
}
.project-card-desc { font-size: 0.78rem; color: var(--text-dim); }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.55rem; }
.project-tag {
  background: rgba(33,150,243,0.09);
  border: 1px solid rgba(33,150,243,0.2);
  color: var(--blue-300);
  border-radius: 100px;
  padding: 0.15rem 0.55rem;
  font-size: 0.66rem;
  cursor: pointer;
  transition: background 0.18s;
  font-family: var(--f-tech);
  letter-spacing: 0.06em;
}
.project-tag:hover { background: rgba(33,150,243,0.2); }

.project-card-assets { padding: 1rem 1.2rem; display: flex; flex-direction: column; gap: 1rem; }

/* Code */
.asset-code { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.asset-code-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  background: rgba(4,8,15,0.9);
  border-bottom: 1px solid var(--border);
}
.asset-code-bar svg { width: 14px; height: 14px; color: var(--blue-300); flex-shrink: 0; }
.asset-code-name { flex: 1; font-size: 0.78rem; font-weight: 500; color: var(--text); font-family: monospace; }
.lang-badge {
  font-size: 0.62rem;
  padding: 0.18rem 0.55rem;
  background: rgba(33,150,243,0.12);
  border: 1px solid rgba(33,150,243,0.22);
  border-radius: 4px;
  color: var(--blue-300);
  font-family: var(--f-tech);
  letter-spacing: 0.06em;
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.65rem;
  background: transparent;
  border: 1px solid var(--border-md);
  border-radius: 6px;
  font-size: 0.72rem;
  color: var(--text-dim);
  transition: all 0.18s;
}
.copy-btn:hover { background: rgba(33,150,243,0.1); color: var(--white); }
.copy-btn svg { width: 12px; height: 12px; }
.copy-btn.copied { color: #22c55e; border-color: rgba(34,197,94,0.3); }

.asset-code pre {
  margin: 0;
  font-size: 0.8rem;
  max-height: 360px;
  overflow: auto;
  background: #1d1f21 !important;
}
.asset-code pre code { font-family: 'Courier New', monospace; }

/* Diagram */
.asset-diagram-grid { display: flex; flex-direction: column; gap: 1rem; }
.asset-diagram-grid.multi {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.asset-diagram-grid.multi .asset-diagram img { max-height: 220px; }
.asset-diagram { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.asset-diagram-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  background: rgba(4,8,15,0.9);
  border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.asset-diagram-bar svg { width: 14px; height: 14px; color: var(--blue-300); }
.asset-diagram img {
  width: 100%;
  max-height: 400px;
  object-fit: contain;
  background: #0a0f1a;
  display: block;
  cursor: zoom-in;
  transition: opacity 0.18s;
}
.asset-diagram img:hover { opacity: 0.85; }

/* Link assets (slides, video, model3d, link) */
.asset-links { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.asset-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  background: rgba(33,150,243,0.06);
  border: 1px solid var(--border-md);
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: all 0.18s;
}
.asset-link-btn:hover { background: rgba(33,150,243,0.14); color: var(--white); }
.asset-link-btn svg { width: 14px; height: 14px; }
.asset-link-arrow { color: var(--text-dim); opacity: 0.5; }
.asset-link-btn:hover .asset-link-arrow { opacity: 1; }

/* Locked asset overlay */
.asset-locked {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.9rem 1rem;
  background: rgba(4,8,15,0.5);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.8rem;
  color: var(--text-dim);
  opacity: 0.6;
}
.asset-locked svg { width: 14px; height: 14px; }

/* PDF embed */
.asset-pdf {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-2);
}

.asset-pdf-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1rem;
  background: var(--bg-card);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
}
.asset-pdf-bar i { width: 14px; height: 14px; color: var(--blue-300); }

.pdf-open-link {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  color: var(--blue-200);
  transition: color 0.2s;
}
.pdf-open-link:hover { color: var(--cyan); }
.pdf-open-link i { width: 12px; height: 12px; }

.pdf-embed {
  width: 100%;
  height: 70vh;
  border: none;
  min-height: 500px;
}

/* Markdown / text */
.asset-markdown { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.asset-markdown-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.9rem;
  background: var(--bg-card);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.asset-markdown-bar svg { width: 14px; height: 14px; color: var(--blue-300); }
.markdown-body {
  padding: 1.2rem 1.4rem;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--text);
}
.markdown-body h1,.markdown-body h2,.markdown-body h3 { color: var(--white); margin: 1rem 0 0.5rem; font-family: var(--f-tech); }
.markdown-body code { background: rgba(33,150,243,0.1); padding: 0.1em 0.35em; border-radius: 4px; font-family: monospace; font-size: 0.85em; color: var(--cyan); }
.markdown-body pre { background: #0d1117; border-radius: 8px; padding: 1rem; overflow-x: auto; }
.markdown-body pre code { background: none; padding: 0; color: var(--text); }
.markdown-body ul,.markdown-body ol { padding-left: 1.5rem; }
.markdown-body li { margin-bottom: 0.3rem; }
.markdown-body a { color: var(--blue-300); }
.markdown-body hr { border-color: var(--border); margin: 1rem 0; }
.markdown-body blockquote { border-left: 3px solid var(--blue-400); padding-left: 1rem; color: var(--text-dim); margin: 0.75rem 0; }

/* Social links footer */
.footer-socials { display: flex; gap: 0.8rem; justify-content: center; margin-top: 0.6rem; }
.social-link { color: var(--text-dim); opacity: 0.45; transition: opacity 0.18s, color 0.18s; display: flex; }
.social-link:hover { opacity: 1; color: var(--blue-300); }
.social-link svg { width: 16px; height: 16px; }

/* ABOUT — dark navy section */
.about-section { background: var(--navy); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-text .section-title { margin-bottom: 1.2rem; }

.chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.4rem; }
.chip {
  background: rgba(33,150,243,0.07);
  border: 1px solid rgba(33,150,243,0.18);
  padding: 0.32rem 0.8rem;
  border-radius: 100px;
  font-size: 0.74rem;
  color: var(--blue-200);
  transition: all 0.18s;
}
.chip:hover { background: rgba(33,150,243,0.16); border-color: var(--blue-400); }

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.stat-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  padding: 1.8rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: border-color 0.22s, box-shadow 0.22s;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-700), var(--cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.38s var(--ease-out);
}
.stat-card:hover { border-color: var(--border-md); box-shadow: 0 8px 28px rgba(33,150,243,0.1); }
.stat-card:hover::before { transform: scaleX(1); }

.stat-num {
  font-family: var(--f-tech);
  font-size: 2.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--blue-300), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-label { margin-top: 0.35rem; font-size: 0.68rem; color: var(--text-dim); letter-spacing: 0.1em; text-transform: uppercase; }

/* FOOTER */
.footer {
  background: var(--navy);
  border-top: 1px solid rgba(33,150,243,0.12);
  padding: 4rem 0 0;
}
/* Footer centrado */
.footer-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.6rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.footer-logos { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 1.4rem; max-width: 100%; }
.footer-logo-udd { height: 46px; max-width: 60vw; object-fit: contain; filter: brightness(0) invert(1); opacity: 0.55; transition: opacity 0.18s; }
.footer-logo-udd:hover { opacity: 0.9; }
.footer-logo-sep { width: 1px; height: 34px; background: rgba(255,255,255,0.18); flex-shrink: 0; }
.footer-logo-inf { height: 30px; max-width: 70vw; object-fit: contain; filter: brightness(0) invert(1); opacity: 0.55; transition: opacity 0.18s; }
.footer-logo-inf:hover { opacity: 0.9; }

.footer-tagline { font-size: 0.82rem; color: rgba(220,232,248,0.5); line-height: 1.6; max-width: 540px; }

.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.8rem; }
.footer-nav a { font-size: 0.74rem; color: rgba(220,232,248,0.6); text-transform: uppercase; letter-spacing: 0.12em; transition: color 0.18s; }
.footer-nav a:hover { color: var(--blue-300); }

.footer-socials { display: flex; gap: 0.6rem; justify-content: center; }
.social-link {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(220,232,248,0.5);
  transition: all 0.2s;
}
.social-link:hover { color: var(--white); background: rgba(33,150,243,0.15); border-color: rgba(33,150,243,0.35); }
.social-link svg { width: 15px; height: 15px; }

.footer-mascots { display: flex; align-items: flex-end; justify-content: center; gap: 0.3rem; }
.fm { object-fit: contain; transition: transform 0.22s var(--ease-spring); cursor: default; }
.fm:hover { transform: translateY(-10px) scale(1.1); }
.fm-1 { width: 38px; transform: rotate(-6deg) translateY(4px); }
.fm-2 { width: 46px; transform: rotate(2deg) translateY(-2px); }
.fm-3 { width: 34px; transform: rotate(8deg) translateY(6px); }
.fm-4 { width: 52px; transform: rotate(-3deg); }
.fm-5 { width: 42px; transform: rotate(11deg) translateY(-4px); }
.fm-6 { width: 32px; transform: rotate(-9deg) translateY(7px); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem 0;
}
.footer-bottom p { font-size: 0.7rem; color: rgba(220,232,248,0.35); }
.footer-author { color: var(--blue-300); transition: color 0.18s; }
.footer-author:hover { color: var(--cyan); text-decoration: underline; }
.footer-admin-link { color: rgba(220,232,248,0.22); transition: color 0.18s; display: flex; flex-shrink: 0; }
.footer-admin-link:hover { color: var(--blue-300); }
.footer-admin-link svg { width: 14px; height: 14px; }

/* GALLERY */
.gallery-section { background: #111c30; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.gallery-more {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}
.gallery-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  aspect-ratio: 4/3;
  transition: transform 0.22s var(--ease-out), box-shadow 0.22s;
}
.gallery-item:hover { transform: translateY(-4px) scale(1.01); box-shadow: 0 12px 40px rgba(33,150,243,0.2); }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery-item-video {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-2);
}
.gallery-item-video svg { width: 48px; height: 48px; color: var(--blue-300); opacity: 0.7; }
.gallery-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 0.6rem 0.8rem;
  background: linear-gradient(transparent, rgba(4,8,15,0.88));
  font-size: 0.74rem;
  color: rgba(255,255,255,0.85);
  opacity: 0;
  transition: opacity 0.22s;
}
.gallery-item:hover .gallery-caption { opacity: 1; }
.gallery-empty { text-align: center; color: var(--text-dim); padding: 3rem; font-size: 0.88rem; }

/* Lightbox */
.lightbox-overlay {
  position: fixed; inset: 0; z-index: 9000;
  background: rgba(0,0,0,0.88);
  display: flex; align-items: center; justify-content: center;
  padding: 2rem;
  backdrop-filter: blur(6px);
  animation: lbIn 0.22s ease;
}
@keyframes lbIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}
.lightbox-inner img {
  max-width: 88vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.7);
}
.lightbox-inner iframe {
  width: min(80vw, 900px);
  height: min(60vw, 500px);
  border: none;
  border-radius: 10px;
}
.lightbox-inner p { font-size: 0.82rem; color: rgba(255,255,255,0.6); text-align: center; }
.lb-close {
  position: absolute; top: -1rem; right: -1rem;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.1);
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.18s;
}
.lb-close:hover { background: rgba(255,255,255,0.25); }
.lb-close svg { width: 16px; height: 16px; }

/* FEEDBACK */
.feedback-section { background: var(--bg-0); padding-top: 1rem; }
.feedback-cta {
  text-align: center;
  max-width: 620px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(13,22,37,0.7), rgba(8,14,26,0.7));
}
.feedback-title { font-family: var(--f-tech); font-size: clamp(1.2rem, 3vw, 1.6rem); font-weight: 800; color: var(--white); margin-bottom: 0.6rem; }
.feedback-desc { font-size: 0.92rem; color: var(--text-dim); margin-bottom: 1.6rem; }

.feedback-modal-backdrop {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(2,5,12,0.78);
  backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
  padding: 1.5rem;
}
.feedback-modal-backdrop.open { display: flex; }
.feedback-modal {
  position: relative;
  width: 100%; max-width: 480px;
  background: var(--bg-2);
  border: 1px solid var(--border-md);
  border-radius: 16px;
  padding: 1.8rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.feedback-modal-title { font-family: var(--f-tech); font-size: 1.1rem; font-weight: 700; color: var(--white); margin-bottom: 1.2rem; }
.feedback-modal-close {
  position: absolute; top: 1rem; right: 1rem;
  width: 32px; height: 32px;
  border-radius: 50%; border: none;
  background: rgba(255,255,255,0.08); color: var(--text-dim);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.18s;
}
.feedback-modal-close:hover { background: rgba(255,255,255,0.18); color: var(--white); }
.feedback-modal-close svg { width: 16px; height: 16px; }
.feedback-modal .field-group { margin-bottom: 1rem; }
.feedback-modal label { display: block; font-size: 0.75rem; color: var(--text-dim); margin-bottom: 0.4rem; }
.feedback-modal input,
.feedback-modal textarea {
  width: 100%;
  background: var(--bg-0);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  resize: vertical;
}
.feedback-modal input:focus,
.feedback-modal textarea:focus { outline: none; border-color: var(--blue-400); }
.feedback-modal-actions { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 0.5rem; }
.feedback-feedback { font-size: 0.8rem; flex: 1; }
.feedback-feedback.ok  { color: #22c55e; }
.feedback-feedback.err { color: #ef4444; }

/* RANKINGS */
.rankings-section { background: var(--bg-1); }

.section-subtitle {
  font-family: var(--f-tech);
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.6rem;
}

/* Two-column layout: teams | activities */
.rankings-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}
/* Teams table */
.teams-table {
  width: 100%;
  border-collapse: collapse;
}
.teams-table th {
  text-align: left;
  padding: 0.6rem 1rem;
  font-size: 0.62rem;
  font-family: var(--f-tech);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: rgba(4,8,15,0.4);
}
.teams-table td {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  border-top: 1px solid var(--border);
}
.teams-table tr:first-child td { border-top: none; }
.teams-table tr:hover td { background: rgba(33,150,243,0.04); }
.teams-num {
  font-family: var(--f-tech);
  font-size: 0.68rem;
  color: var(--blue-400);
  width: 2rem;
}
.teams-empty { color: var(--text-dim); font-size: 0.85rem; padding: 1.5rem 0; }

/* Session rankings */
.ranking-session {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 0.8rem;
}
.ranking-session-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.2rem;
  background: var(--bg-card);
  cursor: pointer;
  user-select: none;
  transition: background 0.18s;
}
.ranking-session-head:hover { background: rgba(33,150,243,0.07); }
.ranking-session-label { font-family: var(--f-tech); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--blue-300); }
.ranking-session-activity { font-size: 0.82rem; color: var(--text-dim); flex: 1; }
.ranking-table { width: 100%; border-collapse: collapse; }
.ranking-table th {
  background: rgba(4,8,15,0.5);
  padding: 0.55rem 1rem;
  font-size: 0.64rem;
  font-family: var(--f-tech);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-align: left;
}
.ranking-table td {
  padding: 0.65rem 1rem;
  font-size: 0.82rem;
  color: var(--text);
  border-top: 1px solid var(--border);
}
.ranking-table tr:first-child td { border-top: none; }
.rank-pos {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6rem; height: 1.6rem;
  border-radius: 50%;
  font-family: var(--f-tech);
  font-size: 0.74rem;
  font-weight: 700;
  border: 1px solid transparent;
}
.rank-pos-1 { color: #fbbf24; background: rgba(251,191,36,0.12); border-color: rgba(251,191,36,0.4); }
.rank-pos-2 { color: #cbd5e1; background: rgba(148,163,184,0.12); border-color: rgba(148,163,184,0.4); }
.rank-pos-3 { color: #e0873b; background: rgba(217,119,6,0.12); border-color: rgba(217,119,6,0.4); }
.rank-pos-n { color: var(--text-dim); background: rgba(255,255,255,0.04); }
.rankings-empty { text-align: center; color: var(--text-dim); padding: 3rem; font-size: 0.88rem; }

/* SCROLL REVEAL */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal-delay { transition-delay: 0.14s; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Hero entry */
[data-aos] { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
[data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos-delay="200"] { transition-delay: 0.2s; }
[data-aos-delay="300"] { transition-delay: 0.3s; }
[data-aos-delay="400"] { transition-delay: 0.4s; }
[data-aos-delay="500"] { transition-delay: 0.5s; }
[data-aos].visible { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */

/* Tablet horizontal: aprieta un poco las dos columnas del hero */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 340px minmax(0, 1fr); gap: 2rem; padding-left: 2rem; padding-right: 2rem; }
  .carousel-led { width: clamp(220px, 28vw, 300px); }
}

/* Tablet / colapso a una columna */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .footer-tagline { max-width: none; }
  /* Hero apilado y centrado (flex en vez de grid para centrar parejo) */
  .hero-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
    padding: calc(var(--header-h) + 1rem) 1.25rem 2.5rem;
  }
  .hero-carousel { order: 1; width: 100%; height: 320px; }
  .hero-content { order: 2; max-width: 100%; padding-bottom: 0; text-align: center; }
  .hero-kicker, .hero-meta, .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-desc { max-width: 520px; margin-bottom: 2rem; }
  .hero-cta { justify-content: center; }
  .hero-scroll-cue { display: none; }
  .carousel-led { width: clamp(200px, 46vw, 300px); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .rankings-layout { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* Móvil: menú hamburguesa y paddings compactos */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-inner { padding: 0 1.25rem; }
  .header-logos-inner { padding: 0 1.25rem; gap: 1rem; }
  .header-logo-udd { height: 38px; }
  .header-logo-inf { height: 24px; }
  .container { padding: 0 1.25rem; }
  .section { padding: 4rem 0; }
  .deco-msc { display: none; }
  .pdf-embed { height: 360px; }
  .footer-nav { gap: 1rem 1.4rem; }
}

/* Móvil estándar */
@media (max-width: 600px) {
  .hero-carousel { height: 260px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .acc-session-date, .acc-session-badge { display: none; }
  .acc-session-head { padding: 1rem 1.1rem; gap: 0.6rem; }
  .gallery-grid { grid-template-columns: 1fr; }
  .project-card-assets { padding: 0.85rem; }
}

/* Móvil pequeño */
@media (max-width: 420px) {
  .glitch { font-size: clamp(2rem, 11vw, 2.6rem); }
  .section-title { font-size: clamp(1.6rem, 7vw, 2rem); }
  .hero-carousel { height: 220px; }
  .carousel-led { width: clamp(160px, 52vw, 220px); }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { justify-content: center; }
  .container { padding: 0 1rem; }
  .stat-num { font-size: 2.2rem; }
  .header-logos-inner { gap: 0.6rem; padding: 0 0.9rem; }
  .header-logo-udd { height: 30px; max-width: 34vw; }
  .header-logo-inf { height: 20px; max-width: 46vw; }
}

/* Respeta la preferencia de menos movimiento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}