:root {
  --bg: #0e0e10;
  --bg-soft: #161618;
  --ink: #f0ede4;
  --ink-soft: #9a958a;
  --accent: #ff5722;
  --accent-soft: #ffab8a;
  --border: rgba(240, 237, 228, 0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.bg-grain {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 1;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.container { max-width: 1240px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 2; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14, 14, 16, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px;
}
.brand {
  font-weight: 700; font-size: 18px;
  letter-spacing: 0.5px;
}
.brand span { color: var(--accent); }
.nav nav { display: flex; gap: 36px; }
.nav nav a {
  font-size: 13px; color: var(--ink-soft);
  text-transform: uppercase; letter-spacing: 1.5px;
  transition: color .2s;
}
.nav nav a:hover { color: var(--accent); }

.btn-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 24px;
  background: var(--accent); color: white;
  font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 1.5px;
  border: none; cursor: pointer;
  transition: all .2s;
  border-radius: 2px;
}
.btn-cta:hover { background: var(--ink); color: var(--bg); transform: translateY(-1px); }
.btn-block { width: 100%; justify-content: center; padding: 16px; margin-top: 8px; }

/* Hero */
.hero {
  min-height: 100vh;
  display: grid; grid-template-columns: 1.3fr 1fr;
  align-items: end; gap: 0;
  padding: 60px 0 0;
  position: relative;
}
.hero .container { padding-bottom: 80px; }
.hero-meta {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: 'DM Mono', monospace;
  font-size: 12px; letter-spacing: 2px;
  color: var(--ink-soft); margin-bottom: 36px;
}
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.4); }
}
.hero-title {
  font-size: clamp(56px, 9vw, 128px);
  line-height: 0.95;
  font-weight: 500;
  letter-spacing: -3px;
  margin-bottom: 32px;
}
.hero-accent {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}
.hero-sub {
  font-size: 18px; max-width: 460px;
  color: var(--ink-soft);
  margin-bottom: 48px;
}

.countdown {
  display: flex; gap: 8px;
  margin-bottom: 40px;
}
.countdown div {
  flex: 0 0 90px;
  text-align: center;
  padding: 16px 8px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
}
.countdown strong {
  display: block;
  font-family: 'DM Mono', monospace;
  font-size: 32px;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
}
.countdown span {
  display: block;
  font-size: 11px; letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 8px;
}

.hero-stats {
  display: flex; flex-direction: column; gap: 12px;
  padding-top: 32px; border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--ink-soft);
}
.hero-stats strong { color: var(--ink); margin-right: 8px; }

.hero-image {
  background:
    linear-gradient(180deg, rgba(14,14,16,.4), rgba(14,14,16,.85)),
    url('https://images.unsplash.com/photo-1554080353-a576cf803bda?w=1600&q=80') center/cover;
  height: 100%;
  min-height: 100vh;
}

/* Tags + section headers */
.tag {
  display: inline-block;
  font-family: 'DM Mono', monospace;
  font-size: 11px; letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  padding: 6px 12px;
  border: 1px solid var(--accent);
  border-radius: 2px;
}
.tag.light { color: var(--bg); border-color: var(--bg); }
section h2 {
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: -1.5px;
  margin-bottom: 60px;
  max-width: 800px;
}

/* About */
.about { padding: 140px 0; border-top: 1px solid var(--border); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: start;
}
.about h2 { margin-bottom: 0; }
.about-text p {
  font-size: 17px; color: var(--ink-soft);
  margin-bottom: 20px;
}

/* Agenda */
.agenda { padding: 140px 0; background: var(--bg-soft); }
.agenda-days {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.day {
  padding: 32px 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  transition: all .3s;
}
.day:hover { border-color: var(--accent); transform: translateY(-4px); }
.day-header {
  display: flex; align-items: baseline; gap: 12px;
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.day-header span {
  font-family: 'DM Mono', monospace;
  font-size: 12px; letter-spacing: 2px;
  color: var(--accent);
  text-transform: uppercase;
}
.day-header strong {
  font-size: 28px; font-weight: 500;
  letter-spacing: -0.5px;
}
.day ul { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.day li {
  display: flex; gap: 16px;
  font-size: 14px; color: var(--ink-soft);
  padding: 6px 0;
}
.day time {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--ink);
  flex: 0 0 50px;
}
.day em { color: var(--accent-soft); font-style: italic; }

/* Speakers */
.speakers { padding: 140px 0; }
.speakers-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.speaker {
  display: flex; flex-direction: column; gap: 14px;
}
.speaker-img {
  aspect-ratio: 3/4;
  background-size: cover; background-position: center;
  filter: grayscale(100%) contrast(1.1);
  transition: filter .4s;
}
.speaker:hover .speaker-img { filter: grayscale(0); }
.s1 { background-image: linear-gradient(rgba(0,0,0,.15), rgba(0,0,0,.15)), url('https://images.unsplash.com/photo-1438761681033-6461ffad8d80?w=600&q=80'); }
.s2 { background-image: linear-gradient(rgba(0,0,0,.15), rgba(0,0,0,.15)), url('https://images.unsplash.com/photo-1507003211169-0a1dd7228f2d?w=600&q=80'); }
.s3 { background-image: linear-gradient(rgba(0,0,0,.15), rgba(0,0,0,.15)), url('https://images.unsplash.com/photo-1531123897727-8f129e1688ce?w=600&q=80'); }
.s4 { background-image: linear-gradient(rgba(0,0,0,.15), rgba(0,0,0,.15)), url('https://images.unsplash.com/photo-1492562080023-ab3db95bfbce?w=600&q=80'); }

.speaker h3 {
  font-size: 22px; font-weight: 500;
  margin-top: 8px;
}
.speaker > span {
  font-family: 'DM Mono', monospace;
  font-size: 12px; letter-spacing: 1.5px;
  color: var(--accent);
}
.speaker p {
  font-size: 14px; color: var(--ink-soft);
  margin-top: 4px;
}

/* Lugar */
.lugar { padding: 140px 0; border-top: 1px solid var(--border); }
.lugar-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.lugar h2 { margin-bottom: 24px; }
.lugar > .container > div > p {
  color: var(--ink-soft); font-size: 16px;
  margin-bottom: 40px;
}
.lugar-info { display: flex; flex-direction: column; gap: 24px; }
.lugar-info div {
  padding: 20px;
  background: var(--bg-soft);
  border-left: 2px solid var(--accent);
  font-size: 14px; color: var(--ink-soft);
}
.lugar-info strong { color: var(--ink); font-size: 15px; }

.map {
  position: relative;
  aspect-ratio: 1;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  overflow: hidden;
}
.map-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.5;
}
.map-pin {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -100%);
  font-size: 48px;
  filter: drop-shadow(0 4px 12px rgba(255,87,34,.5));
  z-index: 2;
}
.map-pin::after {
  content: ''; position: absolute;
  bottom: -8px; left: 50%; transform: translateX(-50%);
  width: 60px; height: 14px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(255,87,34,.4), transparent 70%);
  animation: pulse 2s infinite;
}

/* Inscripción */
.inscripcion { padding: 80px 0 140px; }
.inscripcion-card {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px;
  background: var(--accent); color: var(--bg);
  padding: 64px;
  border-radius: 4px;
}
.inscripcion-card h2 { color: var(--bg); margin-bottom: 16px; font-size: 48px; }
.inscripcion-card > div > p { font-size: 16px; opacity: 0.8; margin-bottom: 32px; }
.includes { list-style: none; margin-bottom: 32px; }
.includes li {
  padding: 10px 0; font-size: 14px;
  border-bottom: 1px solid rgba(0,0,0,.15);
}
.price {
  padding-top: 24px;
  border-top: 2px solid var(--bg);
}
.price span { font-family: 'DM Mono', monospace; font-size: 12px; letter-spacing: 2px; text-transform: uppercase; display: block; margin-bottom: 8px; }
.price strong { font-size: 48px; font-weight: 500; letter-spacing: -2px; }
.price em { display: block; font-size: 13px; opacity: 0.7; font-style: normal; margin-top: 4px; }

.inscripcion-card form {
  background: var(--bg); padding: 36px;
  display: flex; flex-direction: column; gap: 16px;
  color: var(--ink);
}
.inscripcion-card label {
  display: flex; flex-direction: column; gap: 6px;
  font-family: 'DM Mono', monospace;
  font-size: 11px; letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.inscripcion-card input, .inscripcion-card textarea {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--ink);
  padding: 12px; font-family: inherit;
  font-size: 14px; letter-spacing: 0;
  text-transform: none;
}
.inscripcion-card input:focus, .inscripcion-card textarea:focus {
  outline: none; border-color: var(--accent);
}
.inscripcion-card textarea { resize: vertical; }
.ok { text-align: center; color: #4ade80; font-size: 13px; margin-top: 12px; }

/* Footer */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  font-size: 13px; color: var(--ink-soft);
}
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.footer-inner strong { display: block; color: var(--ink); margin-bottom: 4px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a:hover { color: var(--accent); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-image { display: none; }
  .about-grid, .lugar-grid, .inscripcion-card { grid-template-columns: 1fr; gap: 40px; }
  .agenda-days, .speakers-grid { grid-template-columns: 1fr; }
  .nav nav { display: none; }
  .inscripcion-card { padding: 40px 28px; }
  .countdown div { flex: 1; }
}

/* Countdown finalizado */
.cd-ended {
  text-align: center; padding: 32px 24px;
  border: 2px dashed var(--accent);
  background: var(--bg-soft);
  flex: 1;
}
.cd-ended strong {
  display: block;
  font-size: 32px; color: var(--accent);
  font-weight: 500; letter-spacing: -0.5px;
  margin-bottom: 8px;
}
.cd-ended span { font-family: 'DM Mono', monospace; font-size: 12px; color: var(--ink-soft); letter-spacing: 1.5px; }
.dot.ended { background: var(--ink-soft); animation: none; }

/* Hamburger */
.hamburger {
  display: none;
  background: transparent; border: none;
  width: 36px; height: 36px;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 4px;
  cursor: pointer; z-index: 60;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--ink); transition: all .25s;
}
.hamburger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); background: var(--accent); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); background: var(--accent); }

/* Speakers expand */
.speaker { cursor: pointer; transition: all .2s; }
.speaker-more { display: none; padding: 16px; background: var(--bg-soft); border-left: 2px solid var(--accent); margin-top: 12px; font-size: 13px; color: var(--ink-soft); }
.speaker-more p { margin-bottom: 10px; }
.speaker-more strong { color: var(--ink); }
.speaker.expanded .speaker-more { display: block; animation: fade .3s; }
@keyframes fade { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }

/* Testimonios evento */
.testimonios-evento { padding: 140px 0; border-top: 1px solid var(--border); background: var(--bg-soft); }
.testimonios-wall { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.te {
  padding: 36px;
  background: var(--bg);
  border: 1px solid var(--border);
}
.te p { font-size: 18px; line-height: 1.5; color: var(--ink); margin-bottom: 24px; font-weight: 500; letter-spacing: -0.3px; }
.te-author { font-family: 'DM Mono', monospace; font-size: 11px; letter-spacing: 1.5px; color: var(--accent); }

/* Sponsors */
.sponsors { padding: 140px 0; border-top: 1px solid var(--border); }
.sponsors-grid { display: flex; flex-direction: column; gap: 56px; margin-top: 40px; }
.tier-label { display: block; font-family: 'DM Mono', monospace; font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 20px; }
.sponsor-row { display: flex; flex-wrap: wrap; gap: 48px; align-items: center; }
.sponsor-row.main { gap: 64px; }
.sponsor-row.small { gap: 32px; opacity: 0.7; }
.sponsor-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px; font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--ink);
  opacity: 0.85;
  transition: opacity .2s;
}
.sponsor-row.main .sponsor-logo { font-size: 32px; opacity: 1; }
.sponsor-row.small .sponsor-logo { font-size: 16px; font-style: italic; }
.sponsor-logo:hover { opacity: 1; color: var(--accent); }

@media (max-width: 900px) {
  .testimonios-wall { grid-template-columns: 1fr; }
  .hamburger { display: flex; }
  .nav-cta { display: none; }
  .nav nav {
    position: fixed; inset: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: center; justify-content: center;
    gap: 28px;
    transform: translateY(-100%);
    transition: transform .35s cubic-bezier(.2,.7,.3,1);
    z-index: 55;
    display: flex;
  }
  .nav nav.open { transform: translateY(0); }
  .nav nav a { font-size: 22px; color: var(--ink); }
  .sponsor-row { gap: 28px; }
}

/* Mobile polish */
@media (max-width: 600px) {
  .container { padding: 0 18px; }
  .nav-inner { padding: 14px 18px; }
  .hero { min-height: auto; padding: 32px 0 60px; }
  .hero .container { padding-bottom: 48px; }
  .hero-meta { font-size: 10px; gap: 8px; }
  .hero-title { font-size: 56px; letter-spacing: -2px; }
  .hero-sub { font-size: 16px; margin-bottom: 32px; }
  .countdown { gap: 4px; }
  .countdown div { flex: 1 1 0; min-width: 0; padding: 10px 2px; }
  .countdown strong { font-size: 22px; }
  .countdown span { font-size: 9px; letter-spacing: 1px; margin-top: 4px; }
  .hero-stats { font-size: 12px; gap: 8px; padding-top: 24px; }
  .agenda { padding: 80px 0; }
  .speakers, .about, .lugar, .testimonios-evento, .sponsors { padding: 80px 0; }
  .day { padding: 24px 20px; }
  .day-header strong { font-size: 22px; }
  .speakers-grid { gap: 28px; }
  .testimonios-wall { gap: 16px; }
  .te { padding: 24px 20px; }
  .te p { font-size: 16px; }
  .inscripcion { padding: 40px 0 80px; }
  .inscripcion-card { padding: 28px 20px; gap: 28px; }
  .inscripcion-card h2 { font-size: 32px; }
  .price strong { font-size: 36px; }
  .sponsor-row.main .sponsor-logo { font-size: 22px; }
  .sponsor-row .sponsor-logo { font-size: 16px; }
  .sponsor-row.small .sponsor-logo { font-size: 13px; }
}
@media (max-width: 380px) {
  .countdown strong { font-size: 18px; }
  .hero-title { font-size: 46px; }
}

/* H-scroll mobile: speakers, agenda, testimonios */
@media (max-width: 700px) {
  .speakers-grid {
    display: flex !important;
    gap: 14px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    padding: 4px 18px 24px;
    margin: 0 -18px;
    scrollbar-width: none;
  }
  .speakers-grid::-webkit-scrollbar { display: none; }
  .speaker {
    flex: 0 0 70vw;
    max-width: 280px;
    scroll-snap-align: start;
  }
  .agenda-days {
    display: flex !important;
    gap: 14px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    padding: 4px 18px 24px;
    margin: 0 -18px;
    scrollbar-width: none;
  }
  .agenda-days::-webkit-scrollbar { display: none; }
  .day {
    flex: 0 0 85vw;
    max-width: 340px;
    scroll-snap-align: start;
  }
  .testimonios-wall {
    display: flex !important;
    gap: 14px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    padding: 4px 18px 24px;
    margin: 0 -18px;
    scrollbar-width: none;
  }
  .testimonios-wall::-webkit-scrollbar { display: none; }
  .te {
    flex: 0 0 85vw;
    max-width: 360px;
    scroll-snap-align: start;
  }
}