/* POLAR BEATS — PREMIUM STYLE SYSTEM */

:root {
  /* Color Palette */
  --bg-dark: #040810;
  --bg-card: rgba(13, 21, 37, 0.65);
  --bg-card-hover: rgba(20, 31, 54, 0.85);
  --text-primary: #f1f5f9;
  --text-muted: #94a3b8;
  --border-light: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.15);
  
  /* Dynamic Aura Theme Variables */
  --accent-dynamic: #5dd1ff;
  --accent-dynamic-rgb: 93, 209, 255;
  --glow-1-rgb: 93, 209, 255;
  --glow-2-rgb: 31, 167, 227;
  --glow-3-rgb: 255, 176, 58;

  /* Accents */
  --accent-blue: var(--accent-dynamic);
  --accent-blue-deep: #1fa7e3;
  --accent-warm: #ffb03a;
  
  /* Aura Preset Colors (Dynamic variables) */
  --aura-color: var(--accent-dynamic);
  --aura-glow-intensity: rgba(var(--accent-dynamic-rgb), 0.2);
  
  /* Font Family */
  --font-base: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-display: 'Syne', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Background Glowing Orbs */
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
  mix-blend-mode: screen;
  transition: background 0.8s ease;
}

.glow-1 {
  top: -100px;
  right: -50px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(var(--accent-dynamic-rgb), 0.15), transparent 70%);
  animation: floatOrb 12s infinite alternate ease-in-out;
}

.glow-2 {
  top: 600px;
  left: -100px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(var(--glow-2-rgb), 0.1), transparent 70%);
  animation: floatOrb2 15s infinite alternate ease-in-out;
}

.glow-3 {
  bottom: 15%;
  right: -100px;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(var(--glow-3-rgb), 0.05), transparent 70%);
}

@keyframes floatOrb {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(50px) scale(1.1); }
}

@keyframes floatOrb2 {
  0% { transform: translateY(0) scale(1.1); }
  100% { transform: translateY(-70px) scale(0.9); }
}

/* Typography & Visual Accents */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.text-gradient {
  background: linear-gradient(180deg, #ffffff, #94a3b8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.grad-glow {
  color: var(--accent-blue);
  text-shadow: 0 0 30px rgba(var(--accent-dynamic-rgb), 0.35);
  background: linear-gradient(135deg, #ffffff, var(--accent-blue));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-blue);
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(var(--accent-dynamic-rgb), 0.25);
  background: rgba(var(--accent-dynamic-rgb), 0.05);
  backdrop-filter: blur(8px);
  margin-bottom: 24px;
}

.kicker {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-blue);
  margin-bottom: 12px;
}

.kicker.warm {
  color: var(--accent-warm);
}

.section-header {
  margin-bottom: 56px;
}

.section-header.align-center {
  text-align: center;
}

.section-header h2 {
  font-size: clamp(32px, 4.5vw, 48px);
  margin-bottom: 20px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.lead {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-base);
  font-weight: 600;
  font-size: 14.5px;
  padding: 12px 24px;
  border-radius: 12px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-deep));
  color: #02060f;
  box-shadow: 0 4px 20px -5px rgba(var(--accent-dynamic-rgb), 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px -5px rgba(var(--accent-dynamic-rgb), 0.6);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
  border-color: var(--border-light);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--text-primary);
  transform: translateY(-2px);
}

/* Navigation */
.nav-fix {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 24px;
  transition: all 0.3s ease;
}

nav {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 32px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(4, 8, 16, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.3s ease;
  position: relative;
}

.nav-fix.scrolled {
  padding: 12px 24px;
}

.nav-fix.scrolled nav {
  background: rgba(4, 8, 16, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.8),
              0 1px 0px 0px rgba(255, 255, 255, 0.05) inset;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 21px;
  letter-spacing: -0.03em;
}

.logo-icon {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background-image: url('logo.png');
  background-size: cover;
  background-position: center;
  box-shadow: 0 0 12px rgba(var(--accent-dynamic-rgb), 0.35);
}

.nav-links {
  display: flex;
  gap: 32px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
}

@media (min-width: 961px) {
  nav {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
  }
  nav .logo {
    justify-self: start;
  }
  nav .nav-links {
    justify-self: center;
  }
  nav .nav-actions {
    justify-self: end;
  }
}

.nav-links a {
  transition: color 0.2s;
  position: relative;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 1.5px;
  bottom: -4px;
  left: 0;
  background: var(--accent-blue);
  transition: width 0.25s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Language selector dropdown */
.lang-selector {
  position: relative;
}

.lang-active-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-active-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
}

.flag-icon {
  border-radius: 2px;
  display: block;
}

.chevron-down {
  transition: transform 0.25s ease;
}

.lang-selector:hover .chevron-down {
  transform: rotate(180deg);
}

.lang-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: #0b111e;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 160px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-selector:hover .lang-dropdown-menu,
.lang-dropdown-menu.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.lang-dropdown-menu button {
  background: none;
  border: none;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: all 0.18s;
}

.lang-dropdown-menu button:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

/* Burger Button */
.burger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 6px;
}

/* Mobile Overlay Menu */
.mobile-overlay {
  display: flex;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(4, 8, 16, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 24px;
  padding: 40px;
  opacity: 0;
  transform: translateY(-20px);
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-overlay.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-overlay .close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

.mobile-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.mobile-links a {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 26px;
  padding: 8px 24px;
  width: 100%;
  text-align: center;
  display: block;
  transition: color 0.2s;
}

.mobile-links a:hover {
  color: var(--accent-blue);
}

.mobile-lang-row {
  display: flex;
  gap: 16px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  width: 80%;
  justify-content: center;
}

.lang-mobile-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}

.lang-mobile-btn.active {
  background: var(--accent-blue);
  color: #040810;
  border-color: var(--accent-blue);
}

/* Sections */
section {
  padding: 100px 0;
  position: relative;
  z-index: 10;
}

.section-alt {
  background-color: #060b13;
}

/* Hero Section */
#topo {
  position: relative;
  padding: 170px 0 80px;
  z-index: 10;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 72px;
}

h1 {
  font-size: clamp(40px, 5.8vw, 76px);
  margin-bottom: 24px;
  line-height: 1.05;
}

.hero-sub {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--text-muted);
  max-width: 530px;
  margin-bottom: 36px;
}

.hero-sub strong {
  color: var(--text-primary);
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero Visual & Aura */
.product-showcase-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  max-height: 420px;
  border-radius: 24px;
  background: radial-gradient(circle at 50% 20%, rgba(var(--accent-dynamic-rgb), 0.05), transparent 60%), linear-gradient(135deg, rgba(255,255,255,0.01), rgba(255,255,255,0.02));
  border: 1px solid var(--border-light);
  display: grid;
  place-items: center;
  overflow: hidden;
  box-shadow: inset 0 0 40px rgba(0,0,0,0.4);
}

.hero-img {
  width: 90%;
  height: 90%;
  object-fit: contain;
  filter: drop-shadow(0 15px 30px rgba(0,0,0,0.8));
  transition: transform 0.3s ease;
  z-index: 2;
}

.hero-img:hover {
  transform: scale(1.03);
}

.showcase-glow {
  position: absolute;
  width: 60%;
  height: 15%;
  bottom: 15%;
  border-radius: 50%;
  background: var(--aura-color);
  filter: blur(25px);
  opacity: 0.6;
  z-index: 1;
  transition: all 0.8s ease;
}

.glow-status-pill {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  z-index: 3;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--aura-color);
  transition: background-color 0.8s ease;
}

.status-dot.pulsing {
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(var(--accent-dynamic-rgb), 0.5); }
  70% { box-shadow: 0 0 0 6px rgba(var(--accent-dynamic-rgb), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--accent-dynamic-rgb), 0); }
}

/* Stats Dashboard */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  padding: 30px 24px;
  border-radius: 20px;
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.stat-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 38px;
  line-height: 1;
  margin-bottom: 8px;
  background: linear-gradient(180deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-num.color-accent {
  background: none;
  -webkit-text-fill-color: var(--accent-blue);
  color: var(--accent-blue);
}

.stat-num.color-warm {
  background: none;
  -webkit-text-fill-color: var(--accent-warm);
  color: var(--accent-warm);
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Customizer Section */
.customizer-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-light);
  border-radius: 28px;
  padding: 40px;
  margin-bottom: 50px;
  align-items: center;
  overflow: hidden;
}

.customizer-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 16/11;
  background: #040810;
  border: 1px solid rgba(255,255,255,0.03);
  border-radius: 20px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.customizer-visual img {
  width: 85%;
  height: 85%;
  object-fit: contain;
  z-index: 2;
  filter: drop-shadow(0 15px 30px rgba(0,0,0,0.9));
  transition: all 0.5s ease;
}

.led-glow-effect {
  position: absolute;
  width: 70%;
  height: 8%;
  bottom: 20%;
  border-radius: 50%;
  background-color: var(--aura-color);
  filter: blur(20px);
  opacity: 0.65;
  z-index: 1;
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 40px 10px var(--aura-glow-intensity);
}

.customizer-stats {
  position: absolute;
  bottom: 16px;
  left: 16px;
  display: flex;
  gap: 10px;
  z-index: 3;
}

.stat-tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  font-size: 11.5px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 20px;
  backdrop-filter: blur(8px);
}

.customizer-controls h3 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 12px;
}

.customizer-controls p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 30px;
}

.control-group {
  margin-bottom: 28px;
}

.control-label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.color-options {
  display: flex;
  gap: 12px;
}

.color-opt-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 10px 18px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}

.color-opt-btn:hover {
  background: rgba(255, 255, 255, 0.06);
}

.color-opt-btn.active {
  border-color: var(--accent-blue);
  background: rgba(var(--accent-dynamic-rgb), 0.06);
}

.circle-color {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: block;
}

.aura-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.aura-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s ease;
}

.aura-btn:hover {
  border-color: var(--btn-color);
  background: rgba(255, 255, 255, 0.04);
}

.aura-btn.active {
  border-color: var(--btn-color);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.03), 0 0 15px -3px var(--btn-color);
}

/* Audio Simulator */
.audio-simulator-card {
  background: linear-gradient(160deg, #0d1628, #070d18);
  border: 1px solid var(--border-light);
  border-radius: 24px;
  padding: 32px;
  margin-bottom: 80px;
  box-shadow: 0 20px 50px -20px rgba(0,0,0,0.8);
}

.sim-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.sim-logo-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  color: var(--text-primary);
}

.sim-logo-badge svg {
  color: var(--accent-blue);
}

/* Equalizer Bars */
.equalizer-container {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 24px;
  width: 35px;
}

.eq-bar {
  display: block;
  width: 4px;
  background-color: var(--accent-blue);
  border-radius: 2px;
  height: 10%;
  transition: height 0.15s ease;
}

/* Equalizer animations */
.equalizer-container.playing .eq-bar {
  animation: eq-bounce 0.8s infinite alternate ease-in-out;
}

.equalizer-container.playing .bar-1 { animation-delay: 0.1s; }
.equalizer-container.playing .bar-2 { animation-delay: 0.3s; }
.equalizer-container.playing .bar-3 { animation-delay: 0.0s; }
.equalizer-container.playing .bar-4 { animation-delay: 0.5s; }
.equalizer-container.playing .bar-5 { animation-delay: 0.2s; }

@keyframes eq-bounce {
  0% { height: 15%; }
  100% { height: 100%; }
}

.sim-nav {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  padding-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE 10+ */
}

.sim-nav::-webkit-scrollbar {
  display: none; /* Safari and Chrome */
}

.sim-tab {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: 8px;
  transition: all 0.2s;
  white-space: nowrap;
}

.sim-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.02);
}

.sim-tab.active {
  color: var(--accent-blue);
  background: rgba(var(--accent-dynamic-rgb), 0.06);
}

.sim-content-pane {
  min-height: 160px;
}

.sim-pane-active h4 {
  font-size: 20px;
  margin-bottom: 10px;
}

.sim-pane-active p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 24px;
  max-width: 800px;
}

.audio-controls-row {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 16px 24px;
  flex-wrap: wrap;
}

.sound-track-info {
  display: flex;
  flex-direction: column;
}

.track-status {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.track-title {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 32px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.feat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  color: var(--accent-blue);
}

.feat-icon.warm-accent {
  background: rgba(var(--glow-3-rgb), 0.08);
  color: var(--accent-warm);
}

.feature-card h3 {
  font-size: 19px;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14.5px;
  color: var(--text-muted);
}

/* Timeline Cards */
.timeline-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 36px 30px;
  position: relative;
}

.timeline-badge {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(var(--glow-3-rgb), 0.1);
  color: var(--accent-warm);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13.5px;
  margin-bottom: 24px;
}

.timeline-card h3 {
  font-size: 21px;
  margin-bottom: 14px;
}

.timeline-card p {
  font-size: 14.5px;
  color: var(--text-muted);
}

/* Why Grid */
.grid-cards-why {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 80px;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 30px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.why-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  color: var(--accent-blue);
}

.why-body h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.why-body p {
  font-size: 14px;
  color: var(--text-muted);
}

/* Market Validation Dashboard */
.market-val-container {
  background: linear-gradient(170deg, #090f1a, #03060c);
  border: 1px solid var(--border-light);
  border-radius: 28px;
  padding: 48px;
}

.market-val-container h3 {
  font-size: 32px;
  text-align: center;
  margin-bottom: 12px;
}

.market-val-container p.reveal {
  text-align: center;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
}

.val-dash {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.val-stat-card {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-light);
  border-radius: 18px;
  padding: 32px;
}

.val-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 44px;
  line-height: 1;
  margin-bottom: 12px;
  color: var(--accent-blue);
  text-shadow: 0 0 20px rgba(93,209,255,0.1);
}

.val-stat-card p {
  font-size: 14px;
  color: var(--text-muted);
}

.val-meta {
  display: block;
  font-size: 11px;
  font-style: italic;
  color: var(--text-muted);
  opacity: 0.65;
  margin-top: 14px;
}

.details-val-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.detail-val-box {
  border: 1px solid var(--border-light);
  border-radius: 14px;
  padding: 20px;
}

.detail-val-box h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.detail-val-box p {
  font-size: 13.5px;
  color: var(--text-muted);
}

/* Opportunities & Banner */
.opp-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.opp-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 32px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.opp-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-blue);
}

.opp-icon {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  color: var(--accent-blue);
  margin-bottom: 20px;
}

.opp-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.opp-card p {
  font-size: 14px;
  color: var(--text-muted);
}

/* Patent Banner */
.patent-promo-banner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 32px 40px;
  border-radius: 20px;
  border: 1px solid rgba(var(--accent-dynamic-rgb), 0.3);
  background: linear-gradient(110deg, rgba(var(--accent-dynamic-rgb), 0.06), rgba(var(--glow-2-rgb), 0.03));
}

.patent-shield-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(var(--accent-dynamic-rgb), 0.12);
  color: var(--accent-blue);
}

.patent-promo-text h4 {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.patent-promo-text p {
  font-size: 14px;
  color: var(--text-muted);
}

/* App Presentation Section */
.app-display-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.app-display-visuals {
  position: relative;
  width: 100%;
}

.mockup-container {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  width: 100%;
  height: 380px;
}

.phone-mockup {
  width: 150px;
  position: absolute;
  left: 10%;
  bottom: 0;
  z-index: 2;
  filter: drop-shadow(0 15px 35px rgba(0,0,0,0.7));
  transition: transform 0.4s ease;
}

.tablet-mockup {
  width: 340px;
  position: absolute;
  right: 10%;
  bottom: 10px;
  z-index: 1;
  border-radius: 18px;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.8));
  transition: transform 0.4s ease;
}

.phone-mockup:hover {
  transform: translateY(-8px) scale(1.03);
  z-index: 3;
}

.tablet-mockup:hover {
  transform: translateY(-6px) scale(1.02);
}

/* Lifestyle Banner */
.lifestyle-banner {
  margin: 60px 0;
  overflow: hidden;
}

.lifestyle-container {
  width: 100%;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.lifestyle-img {
  width: 100%;
  height: 500px;
  display: block;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.6s ease;
}

.lifestyle-container:hover .lifestyle-img {
  transform: scale(1.02);
}

/* Ambientes Section */
#ambientes {
  padding: 80px 0;
  background: #040810;
}

.ambientes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.ambiente-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 32px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ambiente-card:hover {
  transform: translateY(-5px);
  border-color: rgba(var(--accent-dynamic-rgb), 0.3);
  background: rgba(255, 255, 255, 0.02);
  box-shadow: 0 15px 35px rgba(var(--accent-dynamic-rgb), 0.05);
}

.ambiente-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  color: var(--accent-dynamic);
  margin-bottom: 20px;
  transition: color 0.3s, background-color 0.3s;
}

.ambiente-card:hover .ambiente-icon {
  background: var(--accent-dynamic);
  color: #040810;
  box-shadow: 0 0 15px rgba(var(--accent-dynamic-rgb), 0.4);
}

.ambiente-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.ambiente-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

.app-display-content h2 {
  font-size: clamp(30px, 4.5vw, 44px);
  margin-bottom: 20px;
}

.app-display-content p {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 32px;
}

.app-feature-row {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.app-feat-small-icon {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  color: var(--accent-blue);
}

.app-feature-row h4 {
  font-size: 16px;
  margin-bottom: 4px;
}

.app-feature-row p {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: start;
}

.contact-channels {
  display: flex;
  gap: 12px;
  margin: 32px 0;
  flex-wrap: wrap;
}

.contact-or-text {
  font-size: 15px;
  color: var(--text-muted);
}

.contact-or-text strong {
  color: var(--accent-blue);
}

/* Forms System */
.pb-form-container {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 24px;
  padding: 40px;
}

.field {
  margin-bottom: 20px;
}

.field label {
  display: block;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.pb-input, .pb-textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border-light);
  background: rgba(4, 8, 16, 0.5);
  color: var(--text-primary);
  font-family: var(--font-base);
  font-size: 14.5px;
  transition: all 0.2s ease;
}

.pb-input:focus, .pb-textarea:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(var(--accent-dynamic-rgb), 0.15);
}

.pb-textarea {
  resize: vertical;
  min-height: 100px;
}

.radios {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.radio {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-light);
  background: rgba(4, 8, 16, 0.4);
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
  transition: all 0.18s;
  user-select: none;
}

.radio:hover {
  border-color: var(--border-hover);
}

.radio.active {
  border-color: var(--accent-blue);
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  color: var(--accent-blue);
}

.radio-full {
  grid-column: 1 / -1;
}

.rmark {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.rfill {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-blue);
  display: none;
}

.radio.active .rfill {
  display: block;
}

.form-ok {
  display: none;
  text-align: center;
  padding: 50px 20px;
}

.form-ok.show {
  display: block;
}

.form-fields.hide {
  display: none;
}

.ok-ic {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  color: var(--accent-blue);
  display: grid;
  place-items: center;
  margin: 0 auto 20px;
}

.form-ok h3 {
  font-size: 24px;
  margin-bottom: 12px;
}

.form-ok p {
  color: var(--text-muted);
  font-size: 15px;
}

/* Animations for reveal — Progressive Enhancement
   Content is VISIBLE by default. JS adds .js-ready to <html>,
   then .reveal elements animate in via IntersectionObserver. */
.js-ready .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.js-ready .reveal.in {
  opacity: 1;
  transform: translateY(0);
}

@media(prefers-reduced-motion: reduce) {
  .js-ready .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

/* Footer styling */
footer {
  border-top: 1px solid var(--border-light);
  padding: 60px 0 40px;
  background: #02050b;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  font-size: 14px;
  color: var(--text-muted);
  padding: 8px 16px;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  transition: all 0.2s;
}

.social-link:hover {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.footer-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
}

.footer-flag {
  border-radius: 2px;
}

.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 24px;
}

.footer-meta {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.disclaimer {
  font-size: 11.5px;
  color: var(--text-muted);
  opacity: 0.5;
  line-height: 1.5;
}

/* B2B Economy Calculator */
.section-calc {
  background-color: #060b13;
}

.calc-container {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-light);
  border-radius: 28px;
  padding: 40px;
  margin-top: 30px;
}

.calc-slider-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 28px 32px;
  margin-bottom: 36px;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.slider-label {
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.slider-value-display {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--accent-dynamic);
  text-shadow: 0 0 15px var(--accent-dynamic-glow);
}

/* Range input styling */
.calc-range-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  outline: none;
  margin-bottom: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.calc-range-slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 8px;
  cursor: pointer;
  border-radius: 99px;
}

.calc-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-dynamic);
  box-shadow: 0 0 15px var(--accent-dynamic-glow);
  cursor: pointer;
  margin-top: -8px; /* centering thumb */
  transition: transform 0.15s, background-color 0.3s;
}

.calc-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.calc-range-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 50%;
  background: var(--accent-dynamic);
  box-shadow: 0 0 15px var(--accent-dynamic-glow);
  cursor: pointer;
  transition: transform 0.15s, background-color 0.3s;
}

.calc-range-slider::-moz-range-thumb:hover {
  transform: scale(1.15);
}

.slider-ticks {
  display: flex;
  justify-content: space-between;
  padding: 0 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

/* Results Grid */
.calc-results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.calc-card {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 28px 24px;
  transition: all 0.3s ease;
}

.calc-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  background: rgba(255, 255, 255, 0.02);
}

.calc-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  color: var(--accent-dynamic);
  margin-bottom: 20px;
  transition: color 0.3s, background-color 0.3s;
}

.calc-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.calc-number {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1;
  transition: color 0.3s;
}

.calc-card.total-card {
  background: linear-gradient(135deg, rgba(var(--accent-dynamic-rgb), 0.05), rgba(4, 8, 16, 0.6));
  border-color: rgba(var(--accent-dynamic-rgb), 0.25);
  box-shadow: 0 10px 30px -10px rgba(var(--accent-dynamic-rgb), 0.15);
}

.calc-card.total-card:hover {
  border-color: rgba(var(--accent-dynamic-rgb), 0.45);
  box-shadow: 0 12px 35px -10px rgba(var(--accent-dynamic-rgb), 0.25);
}

.calc-card.total-card .calc-card-icon {
  background: rgba(var(--accent-dynamic-rgb), 0.15);
  box-shadow: 0 0 15px rgba(var(--accent-dynamic-rgb), 0.2);
}

.calc-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Soundwave Canvas Visualizer */
.wave-visualizer-container {
  flex-grow: 1;
  min-width: 150px;
  max-width: 320px;
  height: 40px;
  position: relative;
  display: flex;
  align-items: center;
}

#wave-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* FAQ Accordion Section */
.faq-container {
  max-width: 800px;
  margin: 30px auto 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(var(--accent-dynamic-rgb), 0.25);
  box-shadow: 0 4px 20px -5px rgba(0, 0, 0, 0.4);
}

.faq-item.active {
  border-color: rgba(var(--accent-dynamic-rgb), 0.4);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  cursor: pointer;
  color: var(--text-primary);
  font-family: var(--font-base);
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  transition: color 0.3s ease;
}

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

.faq-chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent-dynamic);
}

.faq-answer {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 24px;
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
  .calc-results-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-sub {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .customizer-container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .timeline-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .val-dash {
    grid-template-columns: 1fr;
  }
  
  .app-display-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .mockup-container {
    height: 320px;
  }
  
  .phone-mockup {
    width: 120px;
    left: 15%;
  }
  
  .tablet-mockup {
    width: 270px;
    right: 15%;
  }

  .ambientes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .app-feature-row {
    text-align: left;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .nav-links, .nav-actions {
    display: none;
  }
  
  .burger {
    display: block;
  }
}

@media (max-width: 768px) {
  input, textarea, select {
    font-size: 16px !important; /* Prevents auto-zoom in iOS Safari */
  }
}

@media (max-width: 560px) {
  section {
    padding: 60px 0;
  }

  .section-header {
    margin-bottom: 32px;
  }

  h1 {
    font-size: clamp(30px, 8vw, 42px);
  }

  .section-header h2 {
    font-size: clamp(24px, 7.5vw, 32px);
    margin-bottom: 12px;
  }

  .section-header p.lead {
    font-size: 14.5px;
  }

  .nav-fix {
    padding: 12px 16px;
  }
  
  .nav-fix.scrolled {
    padding: 8px 16px;
  }
  
  nav {
    padding: 10px 20px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stat-card {
    padding: 20px 14px;
  }

  .stat-num {
    font-size: clamp(28px, 6vw, 36px);
  }

  .stat-label {
    font-size: 11.5px;
    line-height: 1.4;
  }

  .calc-results-grid {
    grid-template-columns: 1fr;
  }
  
  .calc-container {
    padding: 24px 20px;
  }

  .calc-range-slider::-webkit-slider-thumb {
    width: 28px;
    height: 28px;
  }

  .calc-range-slider::-moz-range-thumb {
    width: 28px;
    height: 28px;
  }
  
  .radios {
    grid-template-columns: 1fr;
  }
  
  .patent-promo-banner {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }
  
  .customizer-controls {
    padding: 10px;
  }
  
  .color-options {
    flex-direction: column;
  }

  .mockup-container {
    height: 250px;
  }

  .phone-mockup {
    width: 90px;
    left: 10%;
  }

  .tablet-mockup {
    width: 210px;
    right: 10%;
  }

  .ambientes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .ambiente-card {
    padding: 16px 12px;
  }

  .ambiente-icon {
    width: 36px;
    height: 36px;
    margin-bottom: 10px;
  }

  .ambiente-card h3 {
    font-size: 13.5px;
    margin-bottom: 6px;
  }

  .ambiente-card p {
    font-size: 11.5px;
    line-height: 1.4;
  }

  .tablet-hero-mockup {
    max-height: 300px;
  }
  
  .ambientes-cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .audio-controls-row {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding: 18px 16px;
  }
  
  #play-sim-btn {
    width: 100%;
    justify-content: center;
  }

  .sound-track-info {
    align-items: center;
    text-align: center;
  }
}

/* =============================================
   TABLET HERO DISPLAY (App Section)
============================================= */
.tablet-hero-mockup {
  width: 100%;
  max-width: 640px;
  max-height: 400px;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.6), 0 0 60px -20px rgba(var(--accent-dynamic-rgb), 0.2);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.tablet-hero-mockup:hover {
  transform: scale(1.02) translateY(-4px);
  box-shadow: 0 40px 100px -20px rgba(0,0,0,0.7), 0 0 80px -20px rgba(var(--accent-dynamic-rgb), 0.3);
}

.tablet-caption-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 8px 16px;
  border-radius: 40px;
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  border: 1px solid rgba(var(--accent-dynamic-rgb), 0.2);
  color: var(--accent-dynamic);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background 0.3s, color 0.3s;
}

/* =============================================
   AMBIENTES SECTION (expanded)
============================================= */
.ambientes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 40px;
}

.ambiente-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 28px 22px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.ambiente-card:hover {
  transform: translateY(-5px);
  border-color: rgba(var(--accent-dynamic-rgb), 0.25);
  background: var(--bg-card-hover);
  box-shadow: 0 12px 40px -15px rgba(var(--accent-dynamic-rgb), 0.2);
}

.ambiente-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(var(--accent-dynamic-rgb), 0.08);
  color: var(--accent-dynamic);
  margin-bottom: 16px;
  transition: background 0.3s, color 0.3s;
}

.ambiente-card:hover .ambiente-icon {
  background: rgba(var(--accent-dynamic-rgb), 0.15);
}

.ambiente-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}

.ambiente-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Ambientes CTA Banner */
.ambientes-cta {
  margin-top: 48px;
}

.ambientes-cta-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 32px 40px;
  background: linear-gradient(135deg, rgba(var(--accent-dynamic-rgb), 0.06), rgba(4, 8, 16, 0.5));
  border: 1px solid rgba(var(--accent-dynamic-rgb), 0.18);
  border-radius: 24px;
  color: var(--accent-dynamic);
  transition: border-color 0.3s, background 0.3s;
}

.ambientes-cta-inner:hover {
  border-color: rgba(var(--accent-dynamic-rgb), 0.35);
}

.ambientes-cta-inner svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.ambientes-cta-inner h4 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.ambientes-cta-inner p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

@media (max-width: 1100px) {
  .ambientes-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .ambientes-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .ambientes-cta-inner {
    flex-direction: column;
    text-align: center;
    padding: 24px 20px;
  }
}

@media (max-width: 480px) {
  .ambientes-grid {
    grid-template-columns: 1fr;
  }
}

/* ─── PRODUCT DUO ─── */
.product-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 56px 0;
}
.product-duo-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease;
}
.product-duo-card:hover {
  transform: translateY(-6px);
  border-color: rgba(93,209,255,0.3);
}
.product-duo-img-wrap {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #060c14;
}
.product-duo-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  transition: transform .4s ease;
}
.product-duo-card:hover .product-duo-img-wrap img {
  transform: scale(1.04);
}
.product-duo-label {
  padding: 18px 22px 22px;
}
.duo-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.black-badge {
  background: rgba(255,255,255,0.08);
  color: #c8d4e0;
  border: 1px solid rgba(255,255,255,0.12);
}
.white-badge {
  background: rgba(93,209,255,0.1);
  color: #5DD1FF;
  border: 1px solid rgba(93,209,255,0.25);
}
.product-duo-label p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}
@media (max-width: 600px) {
  .product-duo { grid-template-columns: 1fr; }
}

/* ─── ONDE USAR ─── */
#onde-usar {
  padding: 96px 0;
}
.onde-photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 48px 0 40px;
}
.onde-photo-card {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: default;
}
.onde-photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  display: block;
  transition: transform .5s ease;
}
.onde-photo-card:hover img {
  transform: scale(1.05);
}
.onde-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(4,8,16,.92) 35%, rgba(4,8,16,.15) 70%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px 20px;
}
.onde-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #5DD1FF;
  margin-bottom: 6px;
  display: block;
}
.onde-overlay h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
  line-height: 1.15;
}
.onde-overlay p {
  font-size: 13.5px;
  color: rgba(255,255,255,.7);
  margin: 0;
}
.onde-comercial-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.onde-comercial-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 14px;
  padding: 22px 18px;
  transition: border-color .2s, transform .2s;
}
.onde-comercial-card:hover {
  border-color: rgba(93,209,255,0.25);
  transform: translateY(-3px);
}
.onde-icon {
  font-size: 26px;
  margin-bottom: 12px;
  line-height: 1;
}
.onde-comercial-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.onde-comercial-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}
@media (max-width: 960px) {
  .onde-photo-grid { grid-template-columns: 1fr; gap: 12px; }
  .onde-photo-card { aspect-ratio: 16/9; }
  .onde-photo-card img { object-position: center 30%; }
  .onde-comercial-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .onde-comercial-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .onde-comercial-card { padding: 16px 14px; }
}