/* ======================== CSS VARIABLES ======================== */
:root {
  --naranja:   #f59139;
  --rojizo:    #f45f34;
  --rojo:      #b92e1b;
  --durazno:   #e2a264;
  --cafe:      #ab743e;
  --oscuro:    #1a0e08;
  --texto:     #2c1a0e;
  --claro:     #fff8f2;
  --gris-suave:#f3ece5;
}

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

body {
  font-family: 'Montserrat', sans-serif;
  background: var(--claro);
  color: var(--texto);
  overflow-x: hidden;
}
h1,h2,h3,h4,h5 { font-family: 'Alegreya Sans', serif; }

.section-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  color: var(--rojo);
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  position: absolute;
  left: 0; bottom: -8px;
  width: 60px; height: 4px;
  background: var(--naranja);
  border-radius: 2px;
}
section { padding: 90px 0; }
.bg-dark-brand { background: var(--oscuro); }
.text-brand   { color: var(--naranja); }

.btn-brand {
  background: linear-gradient(135deg, var(--rojizo), var(--rojo));
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  border: none;
  padding: .75rem 2rem;
  border-radius: 50px;
  transition: transform .2s, box-shadow .2s;
}
.btn-brand:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(244,95,52,.45); color:#fff; }

.btn-outline-brand {
  border: 2px solid var(--naranja);
  color: var(--naranja);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  border-radius: 50px;
  padding: .65rem 1.8rem;
  transition: all .2s;
  background: transparent;
}
.btn-outline-brand:hover { background: var(--naranja); color: #fff; }

/* ======================== NAVBAR ======================== */
#mainNav {
  background: rgba(26,14,8,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 12px 0;
  transition: background .3s;
}
#mainNav.scrolled { background: rgba(26,14,8,1); box-shadow: 0 2px 20px rgba(0,0,0,.4); }
#mainNav .navbar-brand { font-family:'Alegreya Sans',serif; font-size:1.4rem; font-weight:900; color:var(--naranja) !important; letter-spacing:.02em; }
#mainNav .nav-link { color:#e8d5c4 !important; font-weight:600; font-size:.82rem; text-transform:uppercase; letter-spacing:.08em; transition:color .2s; padding: .5rem 1rem !important; }
#mainNav .nav-link:hover, #mainNav .nav-link.active { color:var(--naranja) !important; }
.navbar-toggler { border-color:var(--naranja); }
.navbar-toggler-icon { filter: invert(1) grayscale(100%) brightness(200%); }

/* ======================== HERO ======================== */
#hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}
#hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #1a0e08 0%, #2d1508 40%, #5c2010 100%);
  z-index: 0;
}
#hero-media-wrap {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0;
  transition: opacity .6s;
}
#hero-media-wrap.loaded { opacity: .35; }
#hero-media-wrap img, #hero-media-wrap video { width: 100%; height: 100%; object-fit: cover; }

#hero::before {
  content: '';
  position: absolute;
  width: 700px; height: 700px;
  border: 2px solid rgba(245,145,57,.12);
  border-radius: 50%;
  top: -200px; right: -200px;
  z-index: 2;
}
#hero::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(244,95,52,.18) 0%, transparent 70%);
  bottom: 0; left: -100px;
  z-index: 2;
}
.hero-content { position: relative; z-index: 3; }
.hero-edition {
  display: inline-block;
  background: var(--rojizo);
  color: #fff;
  font-size: .75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .15em;
  padding: .35rem 1rem;
  border-radius: 50px;
  margin-bottom: 1.4rem;
}
.hero-title {
  font-family: 'Alegreya Sans', serif;
  font-weight: 900;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 1.05;
  color: #fff;
}
.hero-title span { color: var(--naranja); }
.hero-slogan {
  font-style: italic;
  color: var(--durazno);
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-family: 'Alegreya Sans', serif;
  margin-top: .6rem;
}
.hero-dates {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(245,145,57,.25);
  border-radius: 50px;
  padding: .5rem 1.4rem;
  color: #fff;
  font-weight: 600;
  font-size: .9rem;
  margin-top: 1.8rem;
}

/* ======================== COUNTDOWN ======================== */
#countdown { display:flex; gap:1rem; margin-top:2rem; flex-wrap:wrap; }
.cd-item {
  background: rgba(255,255,255,.07);
  border:1px solid rgba(245,145,57,.2);
  border-radius:12px;
  padding:.8rem 1.2rem;
  text-align:center;
  min-width:72px;
}
.cd-num { font-size:2rem; font-weight:900; color:var(--naranja); font-family:'Alegreya Sans',serif; line-height:1; }
.cd-lbl { font-size:.65rem; text-transform:uppercase; letter-spacing:.1em; color:#d4b89a; margin-top:.2rem; }

/* ======================== MEDIA PLACEHOLDER ======================== */
.media-placeholder {
  background: linear-gradient(135deg, #f3ece5, #e8ddd4);
  border: 2px dashed var(--cafe);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  min-height: 260px;
  text-align: center;
  transition: background .2s;
}
.media-placeholder i { font-size: 2.8rem; color: var(--cafe); margin-bottom: .8rem; }
.media-placeholder p { font-size: .85rem; color: #888; margin: 0; }
.media-placeholder strong { color: var(--rojizo); font-size:.9rem; }

/* ======================== PILARES ======================== */
#pilares { background: var(--oscuro); }
.pilar-card {
  background: rgba(255,255,255,.05);
  border:1px solid rgba(245,145,57,.15);
  border-radius:16px;
  padding:2rem;
  height:100%;
  transition: transform .25s, border-color .25s;
}
.pilar-card:hover { transform:translateY(-6px); border-color:var(--naranja); }
.pilar-num {
  font-family:'Alegreya Sans',serif;
  font-size:3.5rem;
  font-weight:900;
  line-height:1;
  background: linear-gradient(135deg, var(--naranja), var(--rojizo));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}
.pilar-title { color:#fff; font-size:1rem; font-weight:700; margin:0.4rem 0 0.7rem; }
.pilar-text  { color:#c0a080; font-size:.87rem; line-height:1.65; }

/* ======================== SEDES ======================== */
.sede-card {
  border:none;
  border-radius:16px;
  overflow:hidden;
  box-shadow:0 4px 24px rgba(0,0,0,.08);
  transition: transform .25s;
}
.sede-card:hover { transform:translateY(-4px); }
.sede-icon-wrap {
  background: linear-gradient(135deg, var(--naranja), var(--rojizo));
  color:#fff;
  width:52px; height:52px;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:1.3rem;
  flex-shrink:0;
}

/* ======================== CONFERENCISTAS ======================== */
#conferencias { background: var(--gris-suave); }
.speaker-card {
  background:#fff;
  border-radius:20px;
  overflow:hidden;
  box-shadow:0 4px 24px rgba(0,0,0,.07);
  transition: transform .25s;
}
.speaker-card:hover { transform:translateY(-5px); }
.speaker-photo { width:100%; aspect-ratio:1; object-fit:cover; background:#e8ddd4; }
.speaker-photo-placeholder {
  width:100%; aspect-ratio:1;
  background: linear-gradient(135deg, #e8ddd4, #d4c4b4);
  display:flex; align-items:center; justify-content:center;
  font-size:4rem; color:var(--cafe);
}

/* ======================== ACTIVIDADES ======================== */
.actividad-card {
  border-radius:16px;
  overflow:hidden;
  background:#fff;
  box-shadow:0 4px 20px rgba(0,0,0,.07);
}
.actividad-header {
  padding:1.4rem 1.6rem;
  background: linear-gradient(135deg, var(--naranja), var(--rojizo));
  color:#fff;
}

/* ======================== TABS ======================== */
.nav-pills .nav-link {
  border-radius:50px;
  font-weight:600;
  font-size:.85rem;
  color:var(--texto);
  padding:.5rem 1.3rem;
}
.nav-pills .nav-link.active { background: linear-gradient(135deg, var(--naranja), var(--rojizo)); color:#fff; }

/* ======================== FAQ ======================== */
#faq { background: var(--oscuro); }
.accordion-item { border:none; border-radius:12px !important; margin-bottom:.8rem; overflow:hidden; }
.accordion-button {
  font-weight:700;
  font-size:.92rem;
  background:rgba(255,255,255,.06) !important;
  color:#fff !important;
  border-radius:12px !important;
}
.accordion-button:not(.collapsed) {
  background:rgba(245,145,57,.15) !important;
  color:var(--naranja) !important;
  box-shadow:none;
}
.accordion-button::after { filter:invert(1); }
.accordion-body { background:rgba(255,255,255,.04); color:#c0a080; font-size:.88rem; line-height:1.7; }

/* ======================== CONTACTO ======================== */
#contacto { background: var(--gris-suave); }
.contact-form input, .contact-form textarea, .contact-form select {
  border:1.5px solid #ddd;
  border-radius:10px;
  font-family:'Montserrat',sans-serif;
  font-size:.88rem;
}
.contact-form input:focus, .contact-form textarea:focus { border-color:var(--naranja); box-shadow:none; }

/* ======================== FOOTER ======================== */
footer { background: #0f0604; color: #8a6a50; font-size: .82rem; }
footer a { color:var(--durazno); text-decoration:none; }
footer a:hover { color:var(--naranja); }

/* ======================== MISC ======================== */
.divider-wave { line-height:0; }
.divider-wave svg { display:block; }
.badge-custom {
  background: linear-gradient(135deg, var(--naranja), var(--rojizo));
  color:#fff; font-size:.75rem; font-weight:700;
  padding:.35rem .8rem; border-radius:50px;
}
.coming-soon-badge {
  display:inline-block;
  background:#f3ece5;
  color:var(--cafe);
  font-size:.75rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.08em;
  padding:.3rem .9rem;
  border-radius:50px;
  border:1.5px solid var(--durazno);
}