/* ============================================
   KIDS TV — Landing Page Styles
   ============================================ */

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

:root {
  --primary: #7c3aed;
  --primary-light: #a78bfa;
  --primary-dark: #5b21b6;
  --accent: #06b6d4;
  --accent-light: #67e8f9;
  --green: #10b981;
  --orange: #f59e0b;
  --pink: #ec4899;
  --red: #ef4444;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --gray-900: #1e293b;
  --gray-700: #334155;
  --gray-500: #64748b;
  --gray-300: #cbd5e1;
  --gray-100: #f1f5f9;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--gray-900);
  line-height: 1.6;
  overflow-x: hidden;
  background: var(--white);
}

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

img { max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---------- ANIMATIONS ---------- */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.08); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes barBounce {
  0%, 100% { height: 4px; }
  50% { height: 20px; }
}

@keyframes waveMove {
  0% { transform: translateX(0); }
  100% { transform: translateX(-10px); }
}

@keyframes flashBright {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.6; }
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-family: inherit;
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--white);
  border-color: transparent;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn-block {
  width: 100%;
  justify-content: center;
  padding: 16px;
}

.btn-nav {
  background: var(--primary);
  color: var(--white);
  padding: 10px 24px;
  font-size: 0.9rem;
}
.btn-nav:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-icon {
  font-size: 0.8em;
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: var(--transition);
}
.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 6px;
}
.logo-icon {
  font-size: 1.3em;
}

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-weight: 600;
  color: var(--gray-700);
  transition: var(--transition);
  font-size: 0.95rem;
}
.nav-links a:hover {
  color: var(--primary);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--gray-900);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #f0e7ff 0%, #e0f2fe 50%, #ecfdf5 100%);
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-bg-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
}
.shape-1 {
  width: 500px;
  height: 500px;
  background: var(--primary);
  top: -100px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}
.shape-2 {
  width: 300px;
  height: 300px;
  background: var(--accent);
  bottom: 100px;
  left: -80px;
  animation: float 6s ease-in-out infinite 1s;
}
.shape-3 {
  width: 200px;
  height: 200px;
  background: var(--green);
  top: 50%;
  left: 50%;
  animation: float 7s ease-in-out infinite 2s;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  background: rgba(124, 58, 237, 0.1);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--dark);
}
.hero h1 em {
  color: var(--primary);
  font-style: normal;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--gray-700);
  margin-bottom: 32px;
  max-width: 540px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}
.stat {
  text-align: center;
}
.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
}
.stat-label {
  font-size: 0.85rem;
  color: var(--gray-500);
  font-weight: 600;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--gray-300);
}

/* Phone Mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}
.phone-mockup {
  position: relative;
  animation: float 6s ease-in-out infinite;
}
.phone-frame {
  width: 280px;
  height: 560px;
  background: var(--dark);
  border-radius: 36px;
  padding: 12px;
  box-shadow: var(--shadow-lg), 0 0 0 2px rgba(255,255,255,0.3);
}
.phone-frame.small {
  width: 260px;
  height: 520px;
}
.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--white);
  border-radius: 26px;
  overflow: hidden;
}

.mock-app {
  padding: 20px 16px;
  height: 100%;
}
.mock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.mock-greeting {
  font-weight: 800;
  font-size: 1.1rem;
}
.mock-tier {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 700;
}
.mock-time-bar {
  background: var(--gray-100);
  border-radius: 10px;
  height: 28px;
  position: relative;
  overflow: hidden;
  margin-bottom: 20px;
}
.mock-time-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 55%;
  background: linear-gradient(90deg, var(--green), var(--accent));
  border-radius: 10px;
}
.mock-time-text {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  height: 100%;
  padding-left: 12px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--dark);
}
.mock-section-title {
  font-weight: 800;
  font-size: 0.85rem;
  margin-bottom: 10px;
  color: var(--dark);
}
.mock-cards {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}
.mock-card {
  flex: 1;
  height: 72px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 800;
  color: white;
  text-align: center;
  padding: 4px;
}
.mock-card.c1 { background: linear-gradient(135deg, #34d399, #059669); }
.mock-card.c2 { background: linear-gradient(135deg, #818cf8, #4f46e5); }
.mock-card.c3 { background: linear-gradient(135deg, #fb923c, #ea580c); }

.mock-categories {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.mock-cat {
  background: var(--gray-100);
  padding: 8px;
  border-radius: 8px;
  font-size: 0.7rem;
  font-weight: 700;
  text-align: center;
}

.calm-badge-float {
  position: absolute;
  top: 30px;
  right: -20px;
  z-index: 10;
}
.calm-pulse {
  display: block;
  background: linear-gradient(135deg, var(--primary), var(--pink));
  color: white;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 900;
  font-size: 0.85rem;
  letter-spacing: 2px;
  animation: pulse 2s ease-in-out infinite;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
}
.hero-wave svg {
  display: block;
  width: 100%;
  height: 80px;
}

/* ---------- PROBLEM SECTION ---------- */
.problem-section {
  padding: 80px 0;
  background: var(--white);
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}
.problem-stat {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius);
  background: var(--gray-100);
  transition: var(--transition);
}
.problem-stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.problem-number {
  display: block;
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--red), var(--orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.problem-stat p {
  color: var(--gray-700);
  font-weight: 600;
  font-size: 0.95rem;
}
.problem-tagline {
  text-align: center;
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto;
  color: var(--gray-700);
  line-height: 1.7;
}

/* ---------- SECTION HEADERS ---------- */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header.light h2 {
  color: var(--white);
}
.section-header.light p {
  color: rgba(255,255,255,0.8);
}
.section-tag {
  display: inline-block;
  background: rgba(124, 58, 237, 0.1);
  color: var(--primary);
  padding: 4px 16px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 12px;
}
.section-header.light .section-tag {
  background: rgba(255,255,255,0.15);
  color: var(--white);
}
.section-header h2 {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 12px;
}
.section-header p {
  font-size: 1.15rem;
  color: var(--gray-500);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- FEATURES GRID ---------- */
.features {
  padding: 100px 0;
  background: var(--white);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--dark);
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ---------- CALM MODE SECTION ---------- */
.calm-section {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary-dark), #1e1b4b);
  position: relative;
}
.calm-demo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.calm-before-after {
  display: flex;
  align-items: center;
  gap: 20px;
}
.calm-screen {
  flex: 1;
  text-align: center;
}
.screen-label {
  font-weight: 800;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 12px;
}
.screen-content {
  width: 100%;
  height: 180px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}
.screen-content.bright {
  background: linear-gradient(135deg, #ff0066, #ffcc00, #00ff88, #0066ff);
  background-size: 400% 400%;
  animation: shimmer 2s linear infinite;
}
.screen-content.calm {
  background: linear-gradient(135deg, #8b7fb5, #a8b5c4, #9cb0a0, #7b8fa8);
  filter: saturate(0.4) contrast(0.8);
}

.mock-video-bright, .mock-video-calm {
  width: 100%;
  height: 100%;
  display: flex;
  gap: 4px;
  padding: 12px;
  align-items: flex-end;
}
.bright-bar, .calm-bar {
  flex: 1;
  border-radius: 4px;
}
.bright-bar.b1 { height: 70%; background: #ff0066; }
.bright-bar.b2 { height: 50%; background: #ffcc00; }
.bright-bar.b3 { height: 85%; background: #00ff88; }
.bright-flash {
  position: absolute;
  inset: 0;
  background: white;
  animation: flashBright 1s ease-in-out infinite;
}
.calm-bar.b1 { height: 70%; background: rgba(255,255,255,0.25); }
.calm-bar.b2 { height: 50%; background: rgba(255,255,255,0.2); }
.calm-bar.b3 { height: 85%; background: rgba(255,255,255,0.15); }
.calm-overlay {
  position: absolute;
  inset: 0;
  background: rgba(139, 127, 181, 0.2);
}

.screen-caption {
  display: block;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  margin-top: 10px;
  font-weight: 600;
}
.calm-arrow {
  font-size: 2rem;
  color: var(--primary-light);
  font-weight: 900;
  flex-shrink: 0;
}

.calm-presets h3 {
  color: var(--white);
  font-size: 1.5rem;
  margin-bottom: 24px;
}
.preset-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.preset-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
  cursor: default;
}
.preset-item:hover, .preset-item.active {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
}
.preset-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
}
.preset-info strong {
  display: block;
  color: var(--white);
  font-size: 0.95rem;
}
.preset-info span {
  color: rgba(255,255,255,0.5);
  font-size: 0.8rem;
}
.preset-note {
  margin-top: 20px;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ---------- BINAURAL BEATS ---------- */
.beats-section {
  padding: 100px 0;
  background: var(--white);
}
.beats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.beats-content .section-tag {
  margin-bottom: 12px;
}
.beats-content h2 {
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 16px;
  color: var(--dark);
}
.beats-content > p {
  color: var(--gray-500);
  font-size: 1.05rem;
  margin-bottom: 32px;
  line-height: 1.7;
}

.beats-modes {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 24px;
}
.beat-mode {
  padding: 20px;
  border-radius: var(--radius);
  background: var(--gray-100);
}
.beat-wave {
  margin-bottom: 8px;
}
.beat-wave.alpha { color: var(--primary); }
.beat-wave.theta { color: var(--accent); }
.wave-svg {
  width: 120px;
  height: 40px;
}
.beat-mode h4 {
  font-weight: 800;
  margin-bottom: 4px;
  color: var(--dark);
}
.beat-mode p {
  color: var(--gray-500);
  font-size: 0.9rem;
}
.beats-note {
  font-size: 0.9rem;
  color: var(--gray-500);
  font-weight: 600;
}

/* Beats phone mockup */
.beats-visual {
  display: flex;
  justify-content: center;
}
.beats-phone {
  animation: float 5s ease-in-out infinite 0.5s;
}
.mock-player {
  height: 100%;
  display: flex;
  flex-direction: column;
}
.mock-video-area {
  flex: 1;
  background: linear-gradient(135deg, #1e293b, #334155);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0 0 20px 20px;
  min-height: 200px;
}
.play-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
}
.mock-beats-bar {
  background: linear-gradient(90deg, rgba(124,58,237,0.1), rgba(6,182,212,0.1));
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.beats-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
}
.beats-visualizer {
  display: flex;
  gap: 3px;
  align-items: flex-end;
  height: 24px;
}
.beats-visualizer .bar {
  width: 4px;
  background: var(--primary);
  border-radius: 2px;
  animation: barBounce 0.8s ease-in-out infinite;
}
.beats-visualizer .bar:nth-child(1) { animation-delay: 0s; height: 8px; }
.beats-visualizer .bar:nth-child(2) { animation-delay: 0.1s; height: 14px; }
.beats-visualizer .bar:nth-child(3) { animation-delay: 0.2s; height: 6px; }
.beats-visualizer .bar:nth-child(4) { animation-delay: 0.3s; height: 18px; }
.beats-visualizer .bar:nth-child(5) { animation-delay: 0.15s; height: 10px; }
.beats-visualizer .bar:nth-child(6) { animation-delay: 0.25s; height: 16px; }
.beats-visualizer .bar:nth-child(7) { animation-delay: 0.05s; height: 12px; }
.beats-visualizer .bar:nth-child(8) { animation-delay: 0.35s; height: 8px; }

.mock-video-info {
  padding: 16px;
}
.mock-video-info strong {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 2px;
}
.mock-video-info span {
  font-size: 0.75rem;
  color: var(--gray-500);
}

/* ---------- SAFETY SECTION ---------- */
.safety-section {
  padding: 100px 0;
  background: var(--gray-100);
}
.safety-layers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}
.safety-layer {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid transparent;
}
.safety-layer:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}
.layer-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--white);
  font-weight: 900;
  font-size: 1.3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.safety-layer h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--dark);
}
.safety-layer p {
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.6;
}

.safety-badges {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.safety-badge {
  background: var(--white);
  padding: 10px 20px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--gray-700);
  box-shadow: var(--shadow);
}

/* ---------- HOW IT WORKS ---------- */
.how-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #1e1b4b, var(--primary-dark));
}
.steps-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
}
.step {
  text-align: center;
  flex: 1;
  max-width: 220px;
}
.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  border: 2px solid rgba(255,255,255,0.2);
  color: var(--white);
  font-weight: 900;
  font-size: 1.3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.step h3 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.step p {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  line-height: 1.5;
}
.step-arrow {
  color: rgba(255,255,255,0.3);
  font-size: 1.8rem;
  font-weight: 900;
  margin-top: 14px;
}

/* ---------- PRICING ---------- */
.pricing-section {
  padding: 100px 0;
  background: var(--white);
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}
.price-card {
  background: var(--white);
  border: 2px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
  transition: var(--transition);
}
.price-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.price-card.featured {
  border-color: var(--primary);
  box-shadow: 0 8px 40px rgba(124, 58, 237, 0.15);
}
.price-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  padding: 6px 20px;
  border-radius: 50px;
  font-weight: 800;
  font-size: 0.8rem;
  white-space: nowrap;
}
.price-tier {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--gray-500);
  margin-bottom: 8px;
}
.price-amount {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 4px;
}
.price-period {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-bottom: 28px;
}
.price-features {
  margin-bottom: 32px;
}
.price-features li {
  padding: 8px 0;
  font-size: 0.95rem;
  font-weight: 600;
  border-bottom: 1px solid var(--gray-100);
}
.price-features li.included {
  color: var(--gray-700);
}
.price-features li.included.highlight {
  color: var(--primary);
}
.price-features li.excluded {
  color: var(--gray-300);
}

/* ---------- RESEARCH ---------- */
.research-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #0f172a, #1e293b);
}
.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.research-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
}
.research-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-4px);
}
.research-source {
  font-weight: 800;
  font-size: 0.8rem;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.research-card p {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ---------- CATEGORIES ---------- */
.categories-section {
  padding: 80px 0;
  background: var(--white);
}
.categories-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.cat-pill {
  background: var(--gray-100);
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--gray-700);
  transition: var(--transition);
  cursor: default;
}
.cat-pill:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.3);
}

/* ---------- DOWNLOAD CTA ---------- */
.download-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #f0e7ff 0%, #e0f2fe 50%, #ecfdf5 100%);
  text-align: center;
}
.download-content h2 {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 16px;
}
.download-content > p {
  font-size: 1.2rem;
  color: var(--gray-700);
  margin-bottom: 40px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.download-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.store-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--dark);
  color: var(--white);
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.store-btn:hover {
  background: var(--gray-700);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.store-icon {
  font-size: 2rem;
}
.store-text {
  text-align: left;
}
.store-small {
  display: block;
  font-size: 0.7rem;
  opacity: 0.7;
  font-weight: 600;
}
.store-big {
  display: block;
  font-size: 1.2rem;
  font-weight: 800;
}
.download-note {
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo {
  color: var(--white);
  margin-bottom: 12px;
  display: inline-flex;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 280px;
}
.footer-links h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  padding: 6px 0;
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--primary-light);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .research-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .research-grid .research-card:last-child {
    grid-column: span 2;
    max-width: 50%;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  html { font-size: 15px; }

  .nav-links, .btn-nav {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow);
    border-top: 1px solid var(--gray-100);
  }

  .hero {
    padding: 120px 0 60px;
    min-height: auto;
  }
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero h1 { font-size: 2.5rem; }
  .hero-subtitle { margin: 0 auto 32px; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }
  .phone-frame { width: 220px; height: 440px; }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .calm-demo {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .calm-before-after {
    flex-direction: column;
  }
  .calm-arrow {
    transform: rotate(90deg);
  }

  .beats-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .beats-visual { order: -1; }

  .safety-layers {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    flex-direction: column;
    align-items: center;
  }
  .step-arrow {
    transform: rotate(90deg);
    margin: 0;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .research-grid {
    grid-template-columns: 1fr;
  }
  .research-grid .research-card:last-child {
    grid-column: span 1;
    max-width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .footer-brand {
    grid-column: span 2;
  }

  .download-content h2 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .section-header h2 { font-size: 1.8rem; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { width: 40px; height: 1px; }
  .phone-frame { width: 200px; height: 400px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .download-buttons { flex-direction: column; align-items: center; }
}