:root {
  --rojo: #ff2951;
  --azul: #00d4ff;
  --dorado: #ffd54a;
  --bg: #0a0304;
  --bg-panel: rgba(26, 8, 11, 0.85);
  --texto: #f6e9ea;
  --muted: #b08e92;
  --radius: 4px;
  --glow-rojo: 0 0 10px rgba(255, 41, 81, 0.6), 0 0 28px rgba(255, 41, 81, 0.3);
  --glow-azul: 0 0 10px rgba(0, 212, 255, 0.55), 0 0 26px rgba(0, 212, 255, 0.25);
  --glow-dorado: 0 0 10px rgba(255, 213, 74, 0.55), 0 0 26px rgba(255, 213, 74, 0.25);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Rajdhani', system-ui, sans-serif;
  color: var(--texto);
  background:
    radial-gradient(circle at 50% -10%, rgba(255, 41, 81, 0.22), transparent 48%),
    radial-gradient(circle at 90% 10%, rgba(0, 212, 255, 0.10), transparent 40%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.025) 0px, rgba(255, 255, 255, 0.025) 1px, transparent 1px, transparent 3px),
    var(--bg);
  background-attachment: fixed;
  position: relative;
}

h1, h2, h3 {
  font-family: 'Orbitron', 'Rajdhani', system-ui, sans-serif;
}

/* ---------- Banderines (guirnalda de banderas de Chile) ---------- */
.banderines {
  height: 40px;
  width: 100%;
  background-color: var(--bg);
  background-repeat: repeat-x;
  background-position: top center;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='70' height='40'%3E%3Cline x1='0' y1='3' x2='70' y2='3' stroke='%23552222' stroke-width='1'/%3E%3CclipPath id='t'%3E%3Cpolygon points='7,5 63,5 35,36'/%3E%3C/clipPath%3E%3Cg clip-path='url(%23t)'%3E%3Crect x='0' y='5' width='70' height='16' fill='white'/%3E%3Crect x='0' y='21' width='70' height='16' fill='%23D52B1E'/%3E%3Crect x='0' y='5' width='34' height='16' fill='%230039A6'/%3E%3Cpolygon points='17,8 18.3,11.6 22.1,11.6 19,13.9 20.2,17.5 17,15.2 13.8,17.5 15,13.9 11.9,11.6 15.7,11.6' fill='white'/%3E%3C/g%3E%3C/svg%3E");
  filter: drop-shadow(0 0 8px rgba(255, 41, 81, 0.5));
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 4rem 1.5rem 6rem;
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(255, 41, 81, 0.24), transparent 55%),
    #0a0304;
}

.hero::before {
  content: "";
  position: absolute;
  left: -60%;
  right: -60%;
  bottom: 0;
  height: 55%;
  background-image:
    linear-gradient(rgba(255, 41, 81, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 41, 81, 0.3) 1px, transparent 1px);
  background-size: 42px 42px;
  transform: perspective(320px) rotateX(62deg);
  transform-origin: bottom;
  -webkit-mask-image: linear-gradient(to top, black, transparent);
  mask-image: linear-gradient(to top, black, transparent);
  pointer-events: none;
}

.hero-content { position: relative; max-width: 720px; margin: 0 auto; }

.chispa {
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--dorado);
  text-shadow: var(--glow-dorado);
  font-size: 0.95rem;
}

.hero h1 {
  font-size: clamp(1.8rem, 5.5vw, 3rem);
  margin: 0.5rem 0;
  color: var(--texto);
  text-shadow: 0 0 14px rgba(255, 41, 81, 0.45);
  letter-spacing: 1px;
}

#nombre-cumpleanero {
  color: var(--dorado);
  text-shadow: var(--glow-dorado);
}

.subtitulo-nombre {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--muted);
  margin: 0.3rem 0 0.6rem;
  letter-spacing: 0.5px;
}

.subtitulo {
  font-size: 1.15rem;
  color: var(--muted);
  margin-bottom: 1.8rem;
}

.fecha-estado {
  display: inline-block;
  background: rgba(255, 41, 81, 0.08);
  border: 1px solid rgba(255, 41, 81, 0.45);
  border-radius: var(--radius);
  padding: 0.8rem 1.3rem;
  margin-bottom: 1.8rem;
  font-weight: 600;
  color: var(--rojo);
  box-shadow: inset 0 0 20px rgba(255, 41, 81, 0.08);
}

.nota-fecha {
  font-size: 0.9rem;
  color: var(--muted);
  margin: -1rem 0 1.8rem;
}

.botones-hero { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ---------- Botones (estilo cyber, esquinas cortadas) ---------- */
.btn {
  --clr: var(--rojo);
  display: inline-block;
  padding: 0.85rem 1.6rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid var(--clr);
  background: rgba(255, 41, 81, 0.08);
  color: var(--clr);
  font-family: 'Rajdhani', sans-serif;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: box-shadow 0.2s ease, background 0.2s ease, transform 0.15s ease;
}
.btn:hover {
  box-shadow: 0 0 10px color-mix(in srgb, var(--clr) 60%, transparent), 0 0 26px color-mix(in srgb, var(--clr) 25%, transparent);
  background: color-mix(in srgb, var(--clr) 16%, transparent);
  transform: translateY(-2px);
}

.btn-primario { --clr: var(--rojo); }
.btn-secundario { --clr: var(--dorado); }
.btn-mapa { --clr: var(--azul); margin-top: 0.8rem; }

/* ---------- Secciones ---------- */
.seccion {
  max-width: 880px;
  margin: 2rem auto;
  background: var(--bg-panel);
  border: 1px solid rgba(255, 41, 81, 0.25);
  border-radius: var(--radius);
  padding: 2rem;
  backdrop-filter: blur(6px);
  box-shadow: 0 0 30px rgba(255, 41, 81, 0.06);
}

.seccion h2 {
  margin-top: 0;
  color: var(--rojo);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 1.3rem;
  border-left: 3px solid var(--dorado);
  padding-left: 0.8rem;
  text-shadow: 0 0 8px rgba(255, 41, 81, 0.35);
}

.grid-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem;
  margin-top: 1rem;
}

.card-info {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 41, 81, 0.3);
  border-left: 3px solid var(--rojo);
  border-radius: var(--radius);
  padding: 1.2rem;
}
.card-info:nth-child(2) { border-left-color: var(--dorado); }
.card-info:nth-child(3) { border-left-color: var(--azul); }

.card-info h3 {
  margin-top: 0;
  color: var(--texto);
  text-transform: uppercase;
  font-size: 1rem;
  letter-spacing: 1px;
}
.card-info p { color: var(--muted); }
.card-info ul { padding-left: 1.2rem; margin: 0; color: var(--muted); }

/* ---------- RSVP ---------- */
#form-rsvp label {
  display: block;
  font-weight: 600;
  margin: 1rem 0 0.35rem;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
}
#form-rsvp input, #form-rsvp textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 41, 81, 0.35);
  background: rgba(255, 255, 255, 0.03);
  color: var(--texto);
  font-family: inherit;
  font-size: 1rem;
}
#form-rsvp input::placeholder, #form-rsvp textarea::placeholder { color: #7a5457; }
#form-rsvp input:focus, #form-rsvp textarea:focus {
  outline: none;
  border-color: var(--rojo);
  box-shadow: var(--glow-rojo);
}
#form-rsvp textarea { min-height: 80px; resize: vertical; }
#form-rsvp button { margin-top: 1.2rem; }

.mensaje-rsvp { font-weight: 600; margin-top: 1rem; }
.mensaje-rsvp.ok { color: #4ade80; text-shadow: 0 0 8px rgba(74, 222, 128, 0.5); }
.mensaje-rsvp.error { color: var(--rojo); text-shadow: var(--glow-rojo); }

/* ---------- Calendario ---------- */
.seccion-calendario { text-align: center; }
.seccion-calendario h2 { border-left: none; padding-left: 0; }
.seccion-calendario p { color: var(--muted); }
.botones-calendario { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-top: 1rem; }

/* ---------- Footer ---------- */
.footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 1px;
}