/* ESTILOS LA ROCKOLA BAND - PALETA NOCTURNA & DORADO PREMIUM */
:root {
  --bg-principal: #0f1115;
  --bg-tarjeta: #1a1d24;
  --bg-hover: #242832;
  --texto-principal: #f3f4f6;
  --texto-secundario: #9ca3af;
  --acento-dorado: #d4af37;
  --acento-hover: #f1c40f;
  --verde-whatsapp: #25d366;
  --fuente-base: 'Montserrat', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-principal);
  color: var(--texto-principal);
  font-family: var(--fuente-base);
  line-height: 1.6;
  scroll-behavior: smooth;
}

/* NAVBAR */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 8%;
  background-color: rgba(15, 17, 21, 0.95);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
  backdrop-filter: blur(10px);
}

.logo {
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 1.5px;
}

.logo-img {
  height: 100px; /* Ajusta la altura a tu gusto */
  width: auto;
  display: block;
}

.logo span {
  color: var(--acento-dorado);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.8rem;
}

.nav-links a {
  color: var(--texto-principal);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--acento-dorado);
}

/* HERO SECTION */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(rgba(0,0,0,0.75), rgba(15,17,21,1)), url('https://images.unsplash.com/photo-1516450360452-9312f5e86fc7?auto=format&fit=crop&w=1200&q=80') center/cover;
  padding: 2rem 1rem;
}

.badge {
  color: var(--acento-dorado);
  border: 1px solid var(--acento-dorado);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  margin: 1.2rem 0 0.5rem 0;
  letter-spacing: 2px;
  color: #fff;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.hero p {
  color: var(--texto-secundario);
  max-width: 650px;
  margin: 0 auto 2rem auto;
  font-size: 1.1rem;
}

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

/* BOTONES */
.btn-primary {
  background-color: var(--acento-dorado);
  color: #000;
  padding: 0.9rem 2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background-color: var(--acento-hover);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--verde-whatsapp);
  border: 2px solid var(--verde-whatsapp);
  padding: 0.9rem 2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background-color: var(--verde-whatsapp);
  color: #fff;
  transform: translateY(-2px);
}

/* SECCIONES GLOBALES */
.section {
  padding: 5rem 8%;
}

.bg-alt {
  background-color: #14171d;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2.2rem;
  color: var(--acento-dorado);
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--texto-secundario);
  font-size: 1rem;
}

/* FORMATOS / CARDS */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--bg-tarjeta);
  padding: 2.5rem 1.8rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
}

.card-featured {
  border: 1px solid var(--acento-dorado);
  box-shadow: 0 0 20px rgba(212, 175, 55, 0.15);
}

.card-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background-color: var(--acento-dorado);
  color: #000;
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.2rem 0.8rem;
  border-radius: 12px;
  text-transform: uppercase;
}

.card-icon {
  font-size: 2.2rem;
  color: var(--acento-dorado);
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
}

.card p {
  color: var(--texto-secundario);
  font-size: 0.95rem;
}

/* COTIZADOR INTERACTIVO */
.calculator-container {
  background-color: var(--bg-tarjeta);
  padding: 2.5rem;
  border-radius: 12px;
  max-width: 750px;
  margin: 0 auto;
  border: 1px solid rgba(212, 175, 55, 0.2);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--texto-secundario);
  font-size: 0.9rem;
}

.form-group input {
  width: 100%;
  padding: 0.85rem;
  border-radius: 6px;
  border: 1px solid #333;
  background-color: var(--bg-principal);
  color: white;
  font-family: inherit;
}

.checkbox-title {
  display: block;
  margin: 1.5rem 0 1rem 0;
  font-weight: 600;
  color: var(--texto-principal);
}

.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.8rem;
}

.custom-checkbox {
  display: flex;
  align-items: center;
  background-color: var(--bg-principal);
  padding: 0.9rem;
  border-radius: 8px;
  cursor: pointer;
  gap: 1rem;
  border: 1px solid #282c35;
  transition: border-color 0.3s;
}

.custom-checkbox:hover {
  border-color: var(--acento-dorado);
}

.custom-checkbox input {
  accent-color: var(--acento-dorado);
  width: 20px;
  height: 20px;
}

.option-text strong {
  display: block;
  font-size: 0.95rem;
}

.option-text small {
  color: var(--texto-secundario);
  font-size: 0.8rem;
}

.btn-whatsapp {
  width: 100%;
  background-color: var(--verde-whatsapp);
  color: white;
  border: none;
  padding: 1.1rem;
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: background 0.3s;
}

.btn-whatsapp:hover {
  background-color: #1ebd56;
}

/* REPERTORIO */
.filter-buttons {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  background-color: var(--bg-tarjeta);
  color: var(--texto-principal);
  border: 1px solid #333;
  padding: 0.6rem 1.4rem;
  border-radius: 25px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s;
}

.filter-btn.active, .filter-btn:hover {
  background-color: var(--acento-dorado);
  color: black;
  border-color: var(--acento-dorado);
}

.song-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.2rem;
}

.song-card {
  background-color: var(--bg-tarjeta);
  padding: 1.2rem;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-left: 3px solid var(--acento-dorado);
}

.song-card i {
  color: var(--acento-dorado);
  font-size: 1.2rem;
}

.song-card span {
  display: block;
  font-size: 0.82rem;
  color: var(--texto-secundario);
}

/* TESTIMONIOS */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.8rem;
}

.review-card {
  background-color: var(--bg-tarjeta);
  padding: 1.8rem;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.05);
}

.stars {
  margin-bottom: 0.8rem;
}

.comment {
  font-style: italic;
  margin-bottom: 1.2rem;
  font-size: 0.95rem;
}

.reviewer-info strong {
  display: block;
  color: var(--acento-dorado);
}

.reviewer-info small {
  color: var(--texto-secundario);
}

/* FOOTER */
footer {
  text-align: center;
  padding: 3rem 1rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  background-color: #0a0b0e;
}

footer p {
  color: var(--texto-secundario);
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

/* WHATSAPP FLOTANTE */
.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background-color: var(--verde-whatsapp);
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.5);
  text-decoration: none;
  z-index: 1000;
  transition: transform 0.3s;
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .navbar { flex-direction: column; gap: 1rem; }
  .nav-links { gap: 1rem; flex-wrap: wrap; justify-content: center; }
  .hero h1 { font-size: 2.2rem; }
  .form-row { grid-template-columns: 1fr; }
  .checkbox-grid { grid-template-columns: 1fr; }
}