/* ==========================================================================
   MASTER KARAOKE TULANCINGO - OFFICIAL DESIGN SYSTEM & STYLES
   Vibrant Cyan & Hot Pink Neon Glow, Deep Purple Aesthetics
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Variables & Theme Tokens (Matching Logo Colors) --- */
:root {
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Color Palette strictly grounded in the official Master Karaoke Tulancingo Logo */
  --bg-dark: #070611;
  --bg-surface: #0f0b24;
  --bg-card: rgba(21, 14, 46, 0.75);
  --bg-card-hover: rgba(32, 21, 68, 0.88);
  --bg-glass: rgba(255, 255, 255, 0.05);
  
  --accent-cyan: #00f0ff;       /* Electric Cyan "MASTER" */
  --accent-cyan-glow: rgba(0, 240, 255, 0.45);
  --accent-pink: #ff007f;       /* Hot Magenta "KARAOKE" */
  --accent-pink-glow: rgba(255, 0, 127, 0.45);
  
  --primary: #8b5cf6;           /* Electric Violet Glow */
  --primary-light: #a78bfa;
  --primary-dark: #6d28d9;
  
  --accent-amber: #f59e0b;      /* Warm Gold */
  --accent-green: #25d366;      /* WhatsApp Green */
  --accent-green-hover: #128c7e;

  /* Text Colors */
  --text-main: #ffffff;
  --text-muted: #cbd5e1;
  --text-dim: #94a3b8;
  --text-inverse: #070611;

  /* Borders & Neon Glows */
  --border-subtle: rgba(255, 255, 255, 0.1);
  --border-cyan: rgba(0, 240, 255, 0.4);
  --border-pink: rgba(255, 0, 127, 0.4);
  --border-glow: rgba(139, 92, 246, 0.4);
  
  --glow-cyan: 0 0 25px rgba(0, 240, 255, 0.5), 0 0 50px rgba(0, 240, 255, 0.2);
  --glow-pink: 0 0 25px rgba(255, 0, 127, 0.5), 0 0 50px rgba(255, 0, 127, 0.2);
  --glow-primary: 0 0 30px rgba(139, 92, 246, 0.4);
  --glow-green: 0 0 20px rgba(37, 211, 102, 0.5);
  --shadow-card: 0 20px 40px -15px rgba(0, 0, 0, 0.7);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-full: 9999px;
}

/* --- Base & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  font-size: 16px;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Ambient Glow Orbs */
.bg-ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(130px);
  opacity: 0.32;
  animation: pulseAmbient 12s ease-in-out infinite alternate;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
  top: -100px;
  left: -100px;
}

.orb-2 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, var(--accent-pink) 0%, transparent 70%);
  top: 35%;
  right: -150px;
  animation-delay: -4s;
}

.orb-3 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  bottom: 5%;
  left: 10%;
  animation-delay: -8s;
}

@keyframes pulseAmbient {
  0% { transform: scale(1) translate(0, 0); opacity: 0.25; }
  50% { transform: scale(1.18) translate(30px, -20px); opacity: 0.4; }
  100% { transform: scale(0.95) translate(-20px, 30px); opacity: 0.28; }
}

/* --- Container & Layout --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

section {
  padding: 5.5rem 0;
  position: relative;
  z-index: 1;
}

/* --- Typography Utilities --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-main);
}

.gradient-text-master {
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-cyan) 50%, var(--accent-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.neon-cyan-text {
  color: var(--accent-cyan);
  text-shadow: 0 0 15px var(--accent-cyan-glow);
}

.neon-pink-text {
  color: var(--accent-pink);
  text-shadow: 0 0 15px var(--accent-pink-glow);
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 4rem auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.2rem;
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
  backdrop-filter: blur(8px);
}

.section-badge-pink {
  background: rgba(255, 0, 127, 0.12);
  border-color: var(--border-pink);
  color: #ff66b2;
}

.section-title {
  font-size: 2.6rem;
  font-weight: 900;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.6;
}

/* --- Navigation & Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0.85rem 0;
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(7, 6, 17, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.65rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--text-main);
}

.brand-logo-img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-cyan);
  box-shadow: var(--glow-cyan);
  transition: transform var(--transition-bounce);
}

.brand-logo-wrap:hover .brand-logo-img {
  transform: rotate(-6deg) scale(1.1);
}

.brand-name-box {
  display: flex;
  flex-direction: column;
}

.brand-title-line {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.01em;
}

.brand-subtitle-line {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: #ffffff;
  text-transform: uppercase;
  opacity: 0.9;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.8rem;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-pink));
  transition: width var(--transition-normal);
  border-radius: 2px;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.btn-mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-mobile-toggle:hover {
  background: var(--bg-glass);
  border-color: var(--accent-cyan);
}

/* --- Button Styles --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-neon-pink {
  background: linear-gradient(135deg, var(--accent-pink) 0%, #d946ef 100%);
  color: #ffffff;
  box-shadow: var(--glow-pink);
}

.btn-neon-pink:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 0, 127, 0.7);
}

.btn-neon-cyan {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #0284c7 100%);
  color: #070611;
  font-weight: 800;
  box-shadow: var(--glow-cyan);
}

.btn-neon-cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.7);
  color: #000000;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: white;
  box-shadow: var(--glow-green);
}

.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.65);
}

.btn-sm {
  padding: 0.5rem 1.15rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.95rem 2.2rem;
  font-size: 1.1rem;
}

/* --- Hero Section --- */
.hero-section {
  padding-top: 8.5rem;
  padding-bottom: 5rem;
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge-live {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 1.1rem;
  background: rgba(255, 0, 127, 0.15);
  border: 1px solid var(--border-pink);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  color: #ff80bf;
  margin-bottom: 1.5rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-pink);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-pink);
  animation: pulseDot 1.6s infinite;
}

@keyframes pulseDot {
  0% { transform: scale(0.95); opacity: 0.6; }
  50% { transform: scale(1.5); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.6; }
}

.hero-title {
  font-size: 3.3rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2.25rem;
  max-width: 580px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-features-checklist {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.hero-feature-item svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
}

/* Hero Media & Logo Showcase */
.hero-media-wrapper {
  position: relative;
}

.hero-card-main {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 2px solid var(--border-cyan);
  box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.85), var(--glow-cyan);
  background: var(--bg-surface);
}

.hero-logo-showcase {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-normal);
}

.hero-card-main:hover .hero-logo-showcase {
  transform: scale(1.03);
}

.hero-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(7, 6, 17, 0.95) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
}

.hero-song-pill {
  background: rgba(18, 12, 42, 0.88);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-pink);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.song-pill-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.song-pill-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-pink) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #070611;
  font-weight: 800;
  box-shadow: var(--glow-pink);
}

.song-pill-title {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--text-main);
}

.song-pill-artist {
  font-size: 0.8rem;
  color: var(--accent-cyan);
}

/* Audio Equalizer Simulation */
.equalizer-bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 24px;
}

.eq-bar {
  width: 4px;
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-pink));
  border-radius: 2px;
  animation: eqAnimation 1.2s ease-in-out infinite alternate;
}

.eq-bar:nth-child(1) { height: 50%; animation-delay: 0.1s; }
.eq-bar:nth-child(2) { height: 95%; animation-delay: 0.3s; }
.eq-bar:nth-child(3) { height: 40%; animation-delay: 0.5s; }
.eq-bar:nth-child(4) { height: 85%; animation-delay: 0.2s; }
.eq-bar:nth-child(5) { height: 100%; animation-delay: 0.4s; }

@keyframes eqAnimation {
  0% { height: 20%; }
  50% { height: 100%; }
  100% { height: 40%; }
}

.floating-badge {
  position: absolute;
  top: -15px;
  right: -15px;
  background: rgba(15, 11, 36, 0.95);
  border: 1px solid var(--accent-cyan);
  backdrop-filter: blur(12px);
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: var(--glow-cyan);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent-cyan);
  z-index: 3;
}

/* --- Service Core Highlights --- */
.core-hardware-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.hardware-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  backdrop-filter: blur(16px);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.hardware-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-cyan);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-card), 0 0 25px rgba(0, 240, 255, 0.2);
}

.hardware-icon-box {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid var(--border-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin: 0 auto 1.25rem auto;
  transition: all var(--transition-fast);
}

.hardware-card:hover .hardware-icon-box {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-pink) 100%);
  color: #070611;
  box-shadow: var(--glow-pink);
  transform: scale(1.1);
}

.hardware-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.hardware-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --- Packages & Pricing Section --- */
.packages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  max-width: 980px;
  margin: 0 auto 3.5rem auto;
  align-items: stretch;
}

.package-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  backdrop-filter: blur(16px);
}

.package-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-cyan);
  box-shadow: var(--shadow-card);
}

.package-card.featured {
  background: linear-gradient(180deg, rgba(38, 16, 68, 0.9) 0%, rgba(18, 11, 40, 0.95) 100%);
  border: 2px solid var(--accent-pink);
  box-shadow: 0 0 35px rgba(255, 0, 127, 0.35), var(--shadow-card);
  transform: scale(1.04);
}

.package-card.featured:hover {
  transform: scale(1.06) translateY(-6px);
}

.package-top-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent-pink) 0%, #d946ef 100%);
  color: white;
  font-size: 0.85rem;
  font-weight: 900;
  padding: 0.4rem 1.4rem;
  border-radius: var(--radius-full);
  box-shadow: var(--glow-pink);
  white-space: nowrap;
}

.package-header {
  margin-bottom: 1.5rem;
}

.package-name {
  font-size: 1.85rem;
  font-weight: 900;
  margin-bottom: 0.4rem;
}

.package-tagline {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.package-price-box {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin: 1.5rem 0;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.price-currency {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.price-amount {
  font-size: 3.6rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text-main);
  font-family: var(--font-heading);
}

.price-unit {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-left: 0.5rem;
}

.package-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.2rem;
  flex: 1;
}

.package-features li {
  font-size: 0.95rem;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  line-height: 1.4;
}

.package-features li svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 3px;
}

/* --- WhatsApp Multi-Contact Bar --- */
.whatsapp-contacts-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
}

/* --- Song Catalog Section --- */
.catalog-section {
  background: radial-gradient(circle at 50% 30%, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
}

.catalog-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
}

.catalog-search-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(7, 6, 17, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  padding: 0.65rem 1.5rem;
  margin-bottom: 1.5rem;
  transition: all var(--transition-fast);
}

.catalog-search-bar:focus-within {
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.catalog-search-bar input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
}

.catalog-search-bar input::placeholder {
  color: var(--text-dim);
}

.catalog-search-bar svg {
  color: var(--accent-cyan);
}

.genre-chips-container {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  margin-bottom: 2rem;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-cyan) transparent;
}

.genre-chips-container::-webkit-scrollbar {
  height: 4px;
}

.genre-chips-container::-webkit-scrollbar-thumb {
  background: var(--accent-cyan);
  border-radius: 4px;
}

.genre-chip {
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.genre-chip:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border-color: var(--border-cyan);
}

.genre-chip.active {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-pink) 100%);
  border-color: transparent;
  color: #070611;
  font-weight: 800;
  box-shadow: var(--glow-pink);
}

.songs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  max-height: 520px;
  overflow-y: auto;
  padding-right: 0.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-cyan) transparent;
}

.songs-grid::-webkit-scrollbar {
  width: 6px;
}

.songs-grid::-webkit-scrollbar-thumb {
  background: var(--accent-cyan);
  border-radius: 4px;
}

.song-card {
  background: rgba(12, 9, 32, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: all var(--transition-fast);
}

.song-card:hover {
  background: rgba(26, 17, 60, 0.9);
  border-color: var(--border-cyan);
  transform: translateY(-2px);
}

.song-info {
  flex: 1;
  min-width: 0;
}

.song-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.song-artist-genre {
  font-size: 0.825rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.2rem;
}

.song-tag {
  background: rgba(0, 240, 255, 0.12);
  color: var(--accent-cyan);
  padding: 0.1rem 0.5rem;
  border-radius: 4px;
  font-size: 0.725rem;
  font-weight: 700;
}

.btn-sing-track {
  background: rgba(0, 240, 255, 0.15);
  border: 1px solid var(--border-cyan);
  color: var(--accent-cyan);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.song-card:hover .btn-sing-track {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-pink) 100%);
  color: #070611;
  border-color: transparent;
  transform: scale(1.1);
  box-shadow: var(--glow-pink);
}

/* --- FAQ Accordion --- */
.faq-container {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  backdrop-filter: blur(14px);
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--border-cyan);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.35rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--accent-cyan);
}

.faq-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal), background var(--transition-fast);
  flex-shrink: 0;
  color: var(--accent-cyan);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--accent-cyan);
  color: #070611;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease-out;
  padding: 0 1.75rem;
  color: var(--text-muted);
  font-size: 0.975rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 1.5rem;
}

/* --- Call To Action Banner --- */
.cta-banner-card {
  background: linear-gradient(135deg, rgba(38, 16, 68, 0.95) 0%, rgba(12, 16, 45, 0.98) 100%);
  border: 2px solid var(--border-cyan);
  border-radius: var(--radius-xl);
  padding: 4.5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), var(--glow-cyan);
}

.cta-banner-title {
  font-size: 2.75rem;
  font-weight: 900;
  margin-bottom: 1rem;
}

.cta-banner-text {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem auto;
}

/* --- Social Media Badges --- */
.social-badge-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.4rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-main);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.social-badge-link:hover {
  background: linear-gradient(135deg, var(--accent-pink) 0%, #833ab4 100%);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: var(--glow-pink);
}

/* --- Floating Sticky WhatsApp Button --- */
.floating-whatsapp-widget {
  position: fixed;
  bottom: 25px;
  right: 25px;
  z-index: 99;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
  color: white;
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.6);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  animation: floatButton 3s ease-in-out infinite;
}

.floating-whatsapp-widget:hover {
  transform: scale(1.06) translateY(-3px);
  box-shadow: 0 15px 35px rgba(37, 211, 102, 0.8);
}

@keyframes floatButton {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* --- Modal Dialog --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 3, 10, 0.88);
  backdrop-filter: blur(14px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--bg-surface);
  border: 2px solid var(--border-cyan);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.85), var(--glow-cyan);
  transform: scale(0.92);
  transition: transform var(--transition-bounce);
}

.modal-backdrop.open .modal-container {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--accent-pink);
  color: white;
}

.modal-header {
  margin-bottom: 1.75rem;
}

.modal-title {
  font-size: 1.75rem;
  margin-bottom: 0.4rem;
}

.modal-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
}

.form-control {
  background: rgba(7, 6, 17, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

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

/* --- Footer --- */
.site-footer {
  background: #04030a;
  border-top: 1px solid var(--border-subtle);
  padding: 4.5rem 0 2rem 0;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  color: var(--text-main);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-contact-item svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--text-dim);
  font-size: 0.875rem;
}

/* --- Responsive Media Queries --- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .core-hardware-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .packages-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
  }

  .package-card.featured {
    transform: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .btn-mobile-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(7, 6, 17, 0.98);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
  }

  .nav-menu.open {
    transform: translateY(0);
  }

  .nav-actions .btn-header-cta {
    display: none;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .hero-features-checklist {
    grid-template-columns: 1fr;
  }

  .core-hardware-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 2rem;
  }

  .cta-banner-title {
    font-size: 2rem;
  }

  .cta-banner-card {
    padding: 3rem 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .floating-whatsapp-widget span {
    display: none;
  }

  .floating-whatsapp-widget {
    padding: 0.85rem;
    border-radius: 50%;
  }
}