/* ==========================================================================
   SubVox 2.0 Landing Page — Pro Premium Style System (Design Thinking & i18n Edition)
   ========================================================================== */

:root {
  --bg-dark: #070a12;
  --bg-card: #0d1527;
  --bg-card-hover: #131e36;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 242, 254, 0.3);
  
  --primary-cyan: #00f2fe;
  --primary-blue: #4facfe;
  --accent-green: #38ef7d;
  --accent-cyan: #00a8ff;
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  --shadow-glow: 0 0 30px rgba(0, 242, 254, 0.15);
  --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.4);
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

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

button, input, select {
  font-family: inherit;
  border: none;
  outline: none;
}

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

.medium-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* Background Blur Orbs */
.bg-blur {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

.blur-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #00f2fe, #4facfe);
  top: -100px;
  left: -150px;
}

.blur-2 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, #7f00ff, #e100ff);
  top: 400px;
  right: -100px;
}

.blur-3 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #00a8ff, #38ef7d);
  bottom: 500px;
  left: 20%;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #00a8ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Badges */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  color: var(--primary-cyan);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.badge-pill.light {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-color);
  color: var(--text-muted);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56, 239, 125, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(56, 239, 125, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(56, 239, 125, 0); }
}

/* Glassmorphism Cards */
.glass-card {
  background: rgba(13, 21, 39, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-normal);
}

.btn-primary {
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  color: #070a12;
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 242, 254, 0.5);
}

.btn-hero-primary {
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  color: #070a12;
  padding: 16px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 6px 25px rgba(0, 242, 254, 0.4);
}

.btn-hero-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(0, 242, 254, 0.6);
}

.btn-hero-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 16px 28px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-hero-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

/* Header & Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(7, 10, 18, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon { font-size: 1.6rem; }
.logo-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-badge {
  font-size: 0.6rem;
  background: linear-gradient(135deg, #00f2fe, #4facfe);
  color: #070a12;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-menu a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-menu a:hover {
  color: var(--primary-cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 100px;
  gap: 6px;
}

.lang-btn {
  background: transparent;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 100px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-btn.active {
  background: var(--primary-cyan);
  color: #070a12;
}

.lang-divider {
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* Hero Section */
.hero-section {
  padding: 160px 0 90px;
  position: relative;
  z-index: 1;
}

.grid-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-subtitle strong { color: var(--text-main); }

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.trust-stars { color: #ffd166; letter-spacing: 2px; font-size: 1rem; }

/* Hero Mockup Wrapper */
.hero-mockup-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}

.mockup-glass-card {
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

/* SubVox Extension UI Mockup Window */
.subvox-app-window {
  width: 320px;
  background: #0d1527;
  border: 1px solid rgba(0, 168, 255, 0.25);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 1px 1px rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 4px;
}

.app-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--primary-cyan);
}

.app-dots { display: flex; gap: 6px; }
.app-dots .dot { width: 8px; height: 8px; border-radius: 50%; }
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.app-card {
  background: #131e36;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}

.quota-card { display: flex; flex-direction: column; gap: 6px; }
.quota-header { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--text-muted); }
.quota-counter { color: var(--text-main); font-weight: 600; }
.quota-bar-track { width: 100%; height: 4px; background: rgba(255, 255, 255, 0.1); border-radius: 4px; overflow: hidden; }
.quota-bar-fill { width: 15%; height: 100%; background: linear-gradient(90deg, #00a8ff, #00f2fe); border-radius: 4px; transition: width 0.3s ease; }

.status-card { display: flex; align-items: center; justify-content: space-between; }
.card-label { font-size: 0.85rem; font-weight: 600; color: var(--text-main); }

.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #2a3859; transition: .3s; border-radius: 24px; }
.toggle-slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px; background-color: white; transition: .3s; border-radius: 50%; }
input:checked + .toggle-slider { background-color: var(--primary-cyan); }
input:checked + .toggle-slider:before { transform: translateX(20px); }

.slider-card { display: flex; flex-direction: column; gap: 6px; }
.slider-header { display: flex; justify-content: space-between; align-items: center; }
.slider-value { font-size: 0.85rem; font-weight: 700; color: var(--primary-cyan); }
.custom-range { width: 100%; accent-color: var(--primary-cyan); cursor: pointer; }

.select-card { display: flex; align-items: center; justify-content: space-between; }
.custom-select { background: #0d1527; color: var(--text-main); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 6px; padding: 4px 8px; font-size: 0.8rem; cursor: pointer; }

.app-info-box { background: rgba(0, 168, 255, 0.08); border: 1px solid rgba(0, 168, 255, 0.2); border-radius: var(--radius-sm); padding: 10px; display: flex; gap: 8px; font-size: 0.75rem; color: var(--text-muted); line-height: 1.4; }
.app-info-box p strong { color: var(--primary-cyan); }

.app-live-footer { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 0.8rem; font-weight: 600; color: var(--accent-green); padding-top: 4px; }
.live-pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-green); box-shadow: 0 0 8px var(--accent-green); animation: pulse 1.5s infinite; }

/* Floating Badges */
.floating-badge { position: absolute; background: rgba(13, 21, 39, 0.85); backdrop-filter: blur(12px); border: 1px solid var(--border-color); padding: 10px 16px; border-radius: var(--radius-md); display: flex; align-items: center; gap: 10px; box-shadow: var(--shadow-card); }
.badge-1 { top: 40px; left: -40px; }
.badge-2 { bottom: 30px; right: -30px; }
.fb-icon { font-size: 1.4rem; }
.floating-badge strong { display: block; font-size: 0.85rem; color: var(--text-main); }
.floating-badge small { font-size: 0.75rem; color: var(--text-muted); }

/* Section Base */
.section-padding { padding: 100px 0; }
.section-header { margin-bottom: 60px; }
.section-header h2 { font-size: 2.5rem; margin-bottom: 16px; }
.section-header p { color: var(--text-muted); font-size: 1.1rem; max-width: 680px; margin: 0 auto; }

/* Empathy Section */
.empathy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.empathy-card { background: rgba(13, 21, 39, 0.6); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 32px 24px; display: flex; flex-direction: column; gap: 16px; transition: var(--transition-fast); }
.empathy-card:hover { transform: translateY(-4px); border-color: rgba(255, 95, 86, 0.3); background: rgba(19, 30, 54, 0.8); }
.empathy-icon-header { display: flex; align-items: center; justify-content: space-between; }
.emp-icon { font-size: 2rem; }
.emp-tag { background: rgba(255, 95, 86, 0.12); color: #ff7b72; font-size: 0.75rem; font-weight: 700; padding: 4px 10px; border-radius: 100px; }
.empathy-card h3 { font-size: 1.25rem; color: var(--text-main); }
.empathy-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; }
.empathy-quote { margin-top: auto; padding-top: 12px; border-top: 1px solid rgba(255, 255, 255, 0.05); font-size: 0.85rem; color: #a5b4fc; }

/* Solution Section */
.solution-wrapper { padding: 48px; border-color: rgba(0, 242, 254, 0.2); }
.solution-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.solution-info h2 { font-size: 2.2rem; margin-bottom: 16px; }
.solution-info p { color: var(--text-muted); margin-bottom: 28px; font-size: 1.05rem; }
.solution-benefits { list-style: none; display: flex; flex-direction: column; gap: 20px; }
.solution-benefits li { display: flex; gap: 16px; }
.b-icon { font-size: 1.5rem; }
.solution-benefits strong { font-size: 1rem; display: block; margin-bottom: 2px; }
.solution-benefits p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }

.sensory-balance-card { background: rgba(7, 10, 18, 0.9); border: 1px solid rgba(0, 242, 254, 0.25); border-radius: var(--radius-lg); padding: 32px; display: flex; flex-direction: column; gap: 20px; }
.sb-header { font-size: 0.8rem; font-weight: 800; color: var(--primary-cyan); letter-spacing: 1px; }
.sb-item { display: flex; flex-direction: column; gap: 8px; }
.sb-label { display: flex; justify-content: space-between; font-size: 0.85rem; }
.sb-label strong { color: var(--accent-green); }
.sb-bar-bg { width: 100%; height: 8px; background: rgba(255, 255, 255, 0.1); border-radius: 4px; overflow: hidden; }
.sb-bar-fill.visual-fill { width: 100%; height: 100%; background: linear-gradient(90deg, #00f2fe, #4facfe); }
.sb-bar-fill.audio-fill { width: 100%; height: 100%; background: linear-gradient(90deg, #38ef7d, #11998e); }
.sb-footer { font-size: 0.85rem; color: var(--text-muted); border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 16px; }
.sb-footer strong { color: var(--primary-cyan); }

/* Demo Section */
.demo-box { padding: 48px; border-color: rgba(0, 242, 254, 0.2); }
.demo-controls-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; margin-bottom: 32px; }
.form-label { display: block; font-weight: 600; margin-bottom: 12px; color: var(--text-muted); }
.phrase-options { display: flex; flex-direction: column; gap: 12px; }

.phrase-btn { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-color); padding: 14px 18px; border-radius: var(--radius-md); color: var(--text-main); text-align: left; cursor: pointer; display: flex; align-items: center; gap: 12px; font-size: 0.9rem; transition: var(--transition-fast); }
.phrase-btn:hover { border-color: var(--border-glow); background: rgba(0, 242, 254, 0.05); }
.phrase-btn.active { border-color: var(--primary-cyan); background: rgba(0, 242, 254, 0.1); font-weight: 600; }

.demo-audio-panel { background: rgba(19, 30, 54, 0.8); border: 1px solid var(--border-color); padding: 24px; border-radius: var(--radius-md); display: flex; flex-direction: column; gap: 16px; }
.panel-row { display: flex; justify-content: space-between; font-size: 0.9rem; }
.panel-val { font-weight: 700; color: var(--primary-cyan); }

/* Fixed Language Display Badge in Simulator */
.fixed-lang-display {
  background: #0d1527;
  border: 1px solid rgba(0, 242, 254, 0.25);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-main);
}
.fixed-lang-display strong {
  color: var(--primary-cyan);
}

.btn-speak { margin-top: 8px; background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%); color: #070a12; font-weight: 700; padding: 14px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; gap: 10px; cursor: pointer; transition: var(--transition-fast); }
.btn-speak:hover { box-shadow: 0 6px 20px rgba(0, 242, 254, 0.4); transform: translateY(-2px); }

.subtitle-live-banner { background: rgba(0, 0, 0, 0.4); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 16px 24px; text-align: center; }
.sub-label { font-size: 0.75rem; color: var(--primary-cyan); letter-spacing: 1px; font-weight: 700; display: block; margin-bottom: 4px; }
.sub-text { font-size: 1.1rem; font-weight: 500; color: #fff; font-style: italic; }

/* Testimonials */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.testimonial-card { padding: 32px 24px; display: flex; flex-direction: column; gap: 20px; }
.test-user { display: flex; align-items: center; gap: 12px; }
.test-user .avatar { font-size: 2.2rem; }
.test-user strong { display: block; font-size: 1rem; color: var(--text-main); }
.test-user small { color: var(--text-muted); font-size: 0.8rem; }
.test-text { font-size: 0.9rem; color: var(--text-muted); font-style: italic; line-height: 1.6; }

/* Pricing Section */
.pricing-card-wrapper { max-width: 600px; margin: 0 auto; }
.pricing-card { padding: 48px; text-align: center; position: relative; border-color: rgba(0, 242, 254, 0.3); box-shadow: 0 0 50px rgba(0, 242, 254, 0.15); }
.pricing-offer-badge { position: absolute; top: -16px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, #ff5f56, #ffbd2e); color: #070a12; font-size: 0.8rem; font-weight: 800; padding: 4px 16px; border-radius: 100px; }

.pricing-header h3 { font-size: 1.8rem; margin-bottom: 8px; }
.pricing-desc { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 24px; }
.price-container { display: flex; align-items: baseline; justify-content: center; gap: 12px; margin-bottom: 32px; }
.price-old { text-decoration: line-through; color: var(--text-dim); font-size: 1.4rem; }
.price-current { font-size: 3.5rem; font-weight: 800; color: var(--primary-cyan); }
.price-period { color: var(--text-muted); font-size: 0.9rem; }

.pricing-features { list-style: none; text-align: left; display: flex; flex-direction: column; gap: 14px; margin-bottom: 36px; }
.pricing-features li { font-size: 0.95rem; display: flex; gap: 12px; }
.pricing-features .check { color: var(--accent-green); font-weight: bold; }

.btn-buy-now { width: 100%; background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%); color: #070a12; font-size: 1.1rem; font-weight: 800; padding: 18px; border-radius: var(--radius-md); margin-bottom: 12px; box-shadow: 0 8px 30px rgba(0, 242, 254, 0.4); text-decoration: none; display: flex; align-items: center; justify-content: center; gap: 10px; }
.btn-buy-now:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0, 242, 254, 0.6); }

.secondary-checkout-link {
  display: inline-block;
  color: var(--primary-cyan);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}
.secondary-checkout-link:hover {
  text-decoration: underline;
  background: rgba(0, 242, 254, 0.08);
}

.pricing-guarantee { font-size: 0.8rem; color: var(--text-dim); }

/* FAQ Accordion */
.accordion-list { display: flex; flex-direction: column; gap: 16px; }
.accordion-item { background: rgba(13, 21, 39, 0.6); border: 1px solid var(--border-color); border-radius: var(--radius-md); overflow: hidden; }
.accordion-header { width: 100%; padding: 20px 24px; background: transparent; color: var(--text-main); font-size: 1.05rem; font-weight: 600; text-align: left; display: flex; justify-content: space-between; align-items: center; cursor: pointer; }
.accordion-icon { font-size: 1.4rem; color: var(--primary-cyan); transition: transform 0.3s ease; }
.accordion-item.active .accordion-icon { transform: rotate(45deg); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.3s cubic-bezier(0, 1, 0, 1); padding: 0 24px; }
.accordion-item.active .accordion-content { max-height: 300px; padding: 0 24px 20px; }
.accordion-content p { color: var(--text-muted); font-size: 0.95rem; }

/* Footer */
.footer { background: #04060c; border-top: 1px solid var(--border-color); padding: 60px 0 30px; }
.footer-container { display: flex; justify-content: space-between; margin-bottom: 40px; flex-wrap: wrap; gap: 32px; }
.footer-brand { max-width: 320px; }
.footer-brand p { color: var(--text-dim); font-size: 0.85rem; margin-top: 12px; }
.footer-links { display: flex; gap: 60px; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col h4 { font-size: 0.9rem; color: var(--text-main); }
.footer-col a { font-size: 0.85rem; color: var(--text-muted); }
.footer-col a:hover { color: var(--primary-cyan); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.04); padding-top: 24px; font-size: 0.8rem; color: var(--text-dim); }

/* Responsive Media Queries */
@media (max-width: 992px) {
  .grid-hero, .demo-controls-grid, .empathy-grid, .testimonials-grid, .solution-grid {
    grid-template-columns: 1fr;
  }
  .hero-title { font-size: 2.5rem; }
}

@media (max-width: 768px) {
  .nav-menu { display: none; }
  .hero-section { padding-top: 120px; }
  .hero-mockup-wrapper { scale: 0.85; }
}