/* ============================================================
   Vida Solidaria Mardel — Landing page
   Paleta y tipografía según Manual de Identidad de marca
   ============================================================ */

:root{
  --vs-violeta:#73038C;
  --vs-violeta-oscuro:#4d0560;
  --vs-amarillo:#FDED03;
  --vs-azul:#013681;
  --vs-magenta:#CE18E6;
  --vs-naranja:#F09000;
  --vs-celeste:#8CD5F9;
  --vs-papel:#F7F4F8;
  --vs-tinta:#2A1030;

  --font-display: 'Outfit', 'Trebuchet MS', sans-serif;
  --font-body: 'Work Sans', Verdana, sans-serif;

  --container-w: 1120px;
}

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

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--vs-tinta);
  background: var(--vs-papel);
  line-height: 1.55;
  overflow-x: hidden;
}

img{ max-width: 100%; display: block; }

a{ color: inherit; text-decoration: none; }

.container{
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Tipografía ---------- */

.display{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 5vw, 3.5rem);
  line-height: 1.08;
  margin: 0 0 20px;
  color: #fff;
}

.titulo{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  line-height: 1.15;
  margin: 0 0 14px;
  color: var(--vs-violeta);
}

.titulo-light{ color: #fff; }

.subtitulo-txt{
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 1.3rem;
  color: var(--vs-tinta);
  margin: 0 0 40px;
}

.antetitulo{
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--vs-magenta);
  margin: 0 0 10px;
}

.antetitulo-light{ color: var(--vs-amarillo); }

.eyebrow{
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--vs-amarillo);
  margin: 0 0 18px;
}

.lead{
  font-size: 1.15rem;
  color: #fff;
  max-width: 640px;
  margin: 0 0 32px;
}

/* ---------- Botones ---------- */

.btn{
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 30px;
  border-radius: 999px;
  border: 2px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  cursor: pointer;
}

.btn:hover{ transform: translateY(-2px); }

.btn-primary{
  background: var(--vs-amarillo);
  color: var(--vs-tinta);
  box-shadow: 0 8px 20px rgba(253,237,3,0.35);
}
.btn-primary:hover{ box-shadow: 0 12px 26px rgba(253,237,3,0.45); }

.btn-lg{ padding: 16px 40px; font-size: 1.1rem; }

.btn-ghost{
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.btn-ghost:hover{ background: rgba(255,255,255,0.12); border-color: #fff; }

.btn-outline{
  background: transparent;
  color: var(--vs-violeta);
  border-color: var(--vs-violeta);
  padding: 10px 22px;
  font-size: 0.9rem;
}
.btn-outline:hover{ background: var(--vs-violeta); color: #fff; }

/* ---------- Header ---------- */

.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247,244,248,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(115,3,140,0.08);
}

.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand-logo{ height: 44px; width: auto; }

.main-nav{
  display: flex;
  gap: 28px;
  font-weight: 600;
  font-size: 0.95rem;
}

.main-nav a{ color: var(--vs-tinta); }
.main-nav a:hover{ color: var(--vs-violeta); }

@media (max-width: 720px){
  .main-nav{ display: none; }
  .header-cta{ padding: 9px 16px; font-size: 0.8rem; }
}

/* ---------- Hero ---------- */

.hero{
  position: relative;
  background: linear-gradient(160deg, var(--vs-violeta) 0%, var(--vs-violeta-oscuro) 70%);
  padding: 80px 0 140px;
  overflow: hidden;
  text-align: center;
}

.hero-inner{
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero .lead{ text-align: center; }

.hero-heart-wrap{
  margin: 8px 0 36px;
}

.hero-heart{
  width: 240px;
  height: auto;
  filter: drop-shadow(0 10px 24px rgba(0,0,0,0.25));
  animation: heartbeat 1.7s ease-in-out infinite;
  transform-origin: center;
}

@keyframes heartbeat{
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.12); }
  30% { transform: scale(0.98); }
  45% { transform: scale(1.08); }
  60% { transform: scale(1); }
}

.hero-ctas{
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.hero-hearts{
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.floating-heart{
  position: absolute;
  bottom: -40px;
  opacity: 0;
  animation-name: floatUp;
  animation-timing-function: ease-in;
  animation-iteration-count: infinite;
}

.floating-heart svg{ width: 100%; height: 100%; display: block; }

@keyframes floatUp{
  0%{ transform: translateY(0) translateX(0) rotate(0deg) scale(0.8); opacity: 0; }
  10%{ opacity: 0.85; }
  50%{ transform: translateY(-260px) translateX(12px) rotate(8deg) scale(1); }
  90%{ opacity: 0.5; }
  100%{ transform: translateY(-520px) translateX(-10px) rotate(-6deg) scale(0.9); opacity: 0; }
}

.wave-divider{
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  line-height: 0;
  z-index: 2;
}
.wave-divider svg{ width: 100%; height: 90px; display: block; }

.wave-divider-top{
  position: absolute;
  top: -1px; left: 0; right: 0; bottom: auto;
}

/* ---------- Secciones genéricas ---------- */

.section{ padding: 96px 0; }

.video-section{ text-align: center; background: var(--vs-papel); }

.video-frame{
  max-width: 860px;
  margin: 0 auto;
  border-radius: 24px;
  padding: 10px;
  background: linear-gradient(135deg, var(--vs-violeta), var(--vs-azul));
  box-shadow: 0 20px 50px rgba(42,16,48,0.18);
}

.video-wrap{
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 18px;
  overflow: hidden;
  background: #000;
}

.video-wrap iframe{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ---------- Historia / contexto ---------- */

.historia-section{
  background: var(--vs-violeta);
  color: #fff;
}

.historia-grid{
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: start;
}

.historia-texto p{ color: rgba(255,255,255,0.92); }
.historia-texto strong{ color: var(--vs-amarillo); }

.historia-stats{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.stat-card{
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 18px;
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.stat-card-alt{ background: rgba(253,237,3,0.12); border-color: rgba(253,237,3,0.35); }

.stat-number{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.7rem;
  color: var(--vs-amarillo);
}

.stat-label{
  font-size: 0.88rem;
  color: rgba(255,255,255,0.85);
}

@media (max-width: 860px){
  .historia-grid{ grid-template-columns: 1fr; }
  .historia-stats{ grid-template-columns: 1fr 1fr; }
}

/* ---------- Cuenta regresiva ---------- */

.countdown-section{
  position: relative;
  /* Fondo tornasolado en gama de amarillos (pedido del cliente) — degradé
     amarillo → dorado → naranja con un brillo suave arriba a la izquierda
     para dar sensación de tornasol, sin salir nunca de la gama amarilla. */
  background:
    radial-gradient(130% 160% at 12% -15%, rgba(255,255,255,0.45) 0%, rgba(255,255,255,0) 42%),
    linear-gradient(125deg, #FFF48F 0%, #FDED03 26%, #FBC531 52%, #F5A400 78%, #F09000 100%);
  color: var(--vs-tinta);
  text-align: center;
  padding-top: 130px;
}

/* Fondo amarillo/naranja: nunca azul acá (regla de marca: no cruzar
   amarillo y azul). Texto en tinta —combinación aprobada del manual—,
   con violeta como acento: es el mismo contraste que usa el isotipo
   oficial en el avatar de fondo amarillo del kit de marca. */
.countdown-section .antetitulo-light{ color: var(--vs-violeta); }
.countdown-section .titulo-light{ color: var(--vs-tinta); }

.countdown-inner{ position: relative; z-index: 2; }

.countdown-cta-text{
  max-width: 680px;
  margin: 0 auto 44px;
  font-size: 1.05rem;
  color: rgba(42,16,48,0.82);
}

.countdown-cta-text strong{ color: var(--vs-violeta); }

/* Botón violeta con texto blanco — combinación aprobada del manual
   (blanco sobre violeta) y el mismo par de colores del isotipo sobre
   fondo amarillo. */
.countdown-section .btn-primary{
  background: var(--vs-violeta);
  color: #fff;
  box-shadow: 0 8px 20px rgba(115,3,140,0.35);
}
.countdown-section .btn-primary:hover{ box-shadow: 0 12px 26px rgba(115,3,140,0.45); }

.countdown{
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.countdown-item{
  background: rgba(255,255,255,0.4);
  border: 1px solid rgba(42,16,48,0.16);
  border-radius: 18px;
  min-width: 96px;
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.countdown-value{
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.3rem;
  color: var(--vs-violeta);
  font-variant-numeric: tabular-nums;
}

.countdown-label{
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(42,16,48,0.65);
}

/* ---------- Footer ---------- */

.site-footer{
  background: var(--vs-tinta);
  color: rgba(255,255,255,0.85);
  padding: 56px 0 32px;
  text-align: center;
}

.footer-logo{
  height: 46px;
  margin: 0 auto 18px;
}

.footer-text{
  max-width: 520px;
  margin: 0 auto 14px;
  color: rgba(255,255,255,0.85);
}

.footer-link{
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--vs-amarillo);
  margin-bottom: 24px;
}
.footer-link:hover{ text-decoration: underline; }

.footer-copy{
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  margin: 0;
}

/* ---------- Modal: alta de voluntarios (Fase K bloque A) ---------- */

.vs-modal-overlay{
  position: fixed;
  inset: 0;
  background: rgba(42,16,48,0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}
.vs-modal-overlay[hidden]{ display: none; }

.vs-modal{
  position: relative;
  width: 100%;
  max-width: 460px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--vs-papel);
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}

.vs-modal-close{
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: none;
  background: rgba(42,16,48,0.08);
  color: var(--vs-tinta);
  font-size: 0.95rem;
  cursor: pointer;
}
.vs-modal-close:hover{ background: rgba(42,16,48,0.16); }

.vs-form-title{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--vs-violeta);
  margin: 0 0 6px;
}
.vs-form-subtitle{
  font-size: 0.9rem;
  color: rgba(42,16,48,0.65);
  margin: 0 0 20px;
}

.vs-field{
  display: block;
  margin-bottom: 14px;
  font-size: 0.88rem;
  color: var(--vs-tinta);
}
.vs-field span{
  display: block;
  margin-bottom: 5px;
  font-weight: 600;
}
.vs-field input,
.vs-field textarea{
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1.5px solid rgba(42,16,48,0.2);
  background: #fff;
  color: var(--vs-tinta);
  resize: vertical;
}
.vs-field input:focus,
.vs-field textarea:focus{
  outline: none;
  border-color: var(--vs-violeta);
}

.vs-form-error{
  color: #b3261e;
  background: rgba(179,38,30,0.08);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.85rem;
  margin: 0 0 14px;
}
.vs-form-success{
  color: #146c2e;
  background: rgba(20,108,46,0.08);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.85rem;
  margin: 0 0 14px;
}

.vs-form-submit{
  width: 100%;
  text-align: center;
  border: none;
}
.vs-form-submit:disabled{
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ---------- Utilidades responsive ---------- */

@media (max-width: 480px){
  .section{ padding: 64px 0; }
  .hero{ padding: 64px 0 120px; }
  .countdown-item{ min-width: 76px; padding: 14px 8px; }
  .countdown-value{ font-size: 1.7rem; }
  .vs-modal{ padding: 26px 20px; }
}