/* ============================================
   RAFI Landing Page — Styles
   ============================================ */

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

:root {
  --bg-primary: #050a0f;
  --bg-secondary: #091018;
  --bg-card: #0f1922;
  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  /* Green gradient palette */
  --accent-green: #10b981;
  --accent-green-light: #34d399;
  --accent-green-dark: #059669;
  --accent-cyan: #06b6d4;
  --accent-teal: #14b8a6;
  
  /* Gradients */
  --accent-gradient: linear-gradient(135deg, #10b981, #06b6d4);
  --accent-gradient-warm: linear-gradient(135deg, #10b981, #34d399);
  --accent-gradient-cool: linear-gradient(135deg, #06b6d4, #14b8a6);
  
  --glow-green: rgba(16, 185, 129, 0.35);
  --glow-cyan: rgba(6, 182, 212, 0.25);
  --glow-teal: rgba(20, 184, 166, 0.2);
  
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px var(--glow-green);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-width: 1200px;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a {
  color: var(--accent-green);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--accent-green-light); }

img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Utility --- */
.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-2 {
  background: var(--accent-gradient-cool);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section {
  padding: 110px 0;
  position: relative;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 48px;
}

/* --- Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

@keyframes float-delayed {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px var(--glow-green), 0 0 40px var(--glow-cyan); }
  50% { box-shadow: 0 0 35px var(--glow-green), 0 0 60px var(--glow-cyan); }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes gradient-rotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

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

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes particle-float {
  0%, 100% {
    transform: translateY(0) translateX(0);
    opacity: 0;
  }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% {
    transform: translateY(-100vh) translateX(50px);
    opacity: 0;
  }
}

/* --- Glassmorphism --- */
.glass {
  background: rgba(15, 25, 34, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.glass-strong {
  background: rgba(15, 25, 34, 0.8);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* --- Background Effects --- */
.bg-mesh {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg-mesh::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(ellipse at 20% 30%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(6, 182, 212, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(20, 184, 166, 0.08) 0%, transparent 50%);
  animation: gradient-shift 15s ease infinite;
  background-size: 200% 200%;
}

.bg-mesh::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    repeating-linear-gradient(
      transparent 0px,
      transparent 1px,
      rgba(16, 185, 129, 0.02) 1px,
      rgba(16, 185, 129, 0.02) 2px
    );
  background-size: 50px 50px;
}

/* --- Particles --- */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--accent-green);
  border-radius: 50%;
  opacity: 0;
  animation: particle-float 8s infinite ease-in-out;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 1s; }
.particle:nth-child(3) { left: 30%; animation-delay: 2s; }
.particle:nth-child(4) { left: 40%; animation-delay: 3s; }
.particle:nth-child(5) { left: 50%; animation-delay: 4s; }
.particle:nth-child(6) { left: 60%; animation-delay: 2s; }
.particle:nth-child(7) { left: 70%; animation-delay: 3s; }
.particle:nth-child(8) { left: 80%; animation-delay: 5s; }
.particle:nth-child(9) { left: 90%; animation-delay: 1s; }

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.navbar.scrolled {
  background: rgba(5, 10, 15, 0.9);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  padding: 12px 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4), 0 0 1px rgba(16, 185, 129, 0.1);
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.navbar-brand .logo-icon {
  width: 38px;
  height: 38px;
  background: var(--accent-gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 0 20px var(--glow-green);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.navbar-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition);
}

.navbar-links a:hover { 
  color: var(--text-primary); 
}
.navbar-links a:hover::after {
  width: 100%;
}

.navbar-cta {
  padding: 10px 24px;
  background: var(--accent-gradient);
  color: #fff !important;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px var(--glow-green);
}

.navbar-cta:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 30px var(--glow-green);
}

.navbar-cta::after { display: none !important; }

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content { 
  max-width: 580px;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-green);
  margin-bottom: 28px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: pulse-glow 2.5s infinite;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.22rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.8;
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 25px var(--glow-green);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px var(--glow-green);
  color: #fff;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-secondary:hover {
  border-color: var(--accent-green);
  background: rgba(16, 185, 129, 0.08);
  color: var(--text-primary);
}

.lang-badges {
  display: flex;
  gap: 10px;
}

.lang-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* Glow effect behind phone */
.hero-visual::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--glow-green) 0%, transparent 70%);
  filter: blur(40px);
  opacity: 0.5;
  z-index: 0;
}

/* Phone mockup */
.phone-mockup {
  width: 310px;
  background: var(--bg-card);
  border-radius: 38px;
  border: 2px solid rgba(255, 255, 255, 0.08);
  padding: 14px;
  box-shadow: var(--shadow), 0 0 80px var(--glow-green);
  animation: float 6s ease-in-out infinite;
  position: relative;
  z-index: 1;
}

.phone-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 22px 22px 0 0;
  margin-bottom: 2px;
}

.phone-avatar {
  width: 38px;
  height: 38px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.phone-contact {
  font-weight: 600;
  font-size: 0.95rem;
}

.phone-status {
  font-size: 0.72rem;
  color: var(--accent-green);
}

.phone-messages {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 380px;
}

.msg {
  max-width: 86%;
  padding: 12px 16px;
  border-radius: 18px;
  font-size: 0.84rem;
  line-height: 1.5;
}

.msg-bot {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.15);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.msg-user {
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.15);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.msg-audio {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  align-self: flex-start;
  background: rgba(20, 184, 166, 0.1);
  border: 1px solid rgba(20, 184, 166, 0.15);
  border-radius: 18px;
  border-bottom-left-radius: 4px;
}

.msg-audio .play-btn {
  width: 36px;
  height: 36px;
  background: var(--accent-gradient-cool);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.msg-audio .waveform {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 26px;
}

.msg-audio .waveform span {
  width: 3px;
  background: var(--accent-teal);
  border-radius: 2px;
  animation: wave-bar 1.2s ease-in-out infinite;
}

@keyframes wave-bar {
  0%, 100% { height: 5px; opacity: 0.4; }
  50% { height: 20px; opacity: 1; }
}

.msg-audio .waveform span:nth-child(1) { animation-delay: 0s; }
.msg-audio .waveform span:nth-child(2) { animation-delay: 0.1s; }
.msg-audio .waveform span:nth-child(3) { animation-delay: 0.2s; }
.msg-audio .waveform span:nth-child(4) { animation-delay: 0.3s; }
.msg-audio .waveform span:nth-child(5) { animation-delay: 0.4s; }
.msg-audio .waveform span:nth-child(6) { animation-delay: 0.5s; }
.msg-audio .waveform span:nth-child(7) { animation-delay: 0.6s; }
.msg-audio .waveform span:nth-child(8) { animation-delay: 0.7s; }
.msg-audio .waveform span:nth-child(9) { animation-delay: 0.8s; }
.msg-audio .waveform span:nth-child(10) { animation-delay: 0.9s; }

.msg-audio .duration {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.msg-buttons {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.msg-btn {
  padding: 6px 14px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 10px;
  font-size: 0.72rem;
  color: var(--accent-green);
  cursor: default;
}

/* --- Stats Bar --- */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: 80px;
  padding: 52px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  background: rgba(5, 10, 15, 0.5);
}

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

.stat-value {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* --- How It Works --- */
.how-it-works { background: var(--bg-secondary); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  counter-reset: step;
}

.step-card {
  position: relative;
  padding: 44px 36px;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition);
  counter-increment: step;
}

.step-card:hover {
  transform: translateY(-6px);
  border-color: rgba(16, 185, 129, 0.2);
  box-shadow: 0 12px 50px rgba(0, 0, 0, 0.35), 0 0 30px var(--glow-green);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: var(--accent-gradient);
  border-radius: 16px;
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 28px;
  box-shadow: 0 0 25px var(--glow-green);
}

.step-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.step-card p {
  color: var(--text-secondary);
  font-size: 0.96rem;
}

.step-icon {
  font-size: 2rem;
  margin-bottom: 22px;
}

/* Connector arrows */
.steps-grid .step-card:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -26px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.6rem;
  color: var(--text-muted);
  z-index: 2;
}

/* --- Features --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 34px;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover::before { opacity: 1; }

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(16, 185, 129, 0.15);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3), 0 0 25px var(--glow-green);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  font-size: 1.6rem;
  margin-bottom: 22px;
}

.feature-icon.green { background: rgba(16, 185, 129, 0.12); }
.feature-icon.cyan { background: rgba(6, 182, 212, 0.12); }
.feature-icon.teal { background: rgba(20, 184, 166, 0.12); }
.feature-icon.purple { background: rgba(139, 92, 246, 0.12); }
.feature-icon.orange { background: rgba(249, 115, 22, 0.12); }
.feature-icon.pink { background: rgba(236, 72, 153, 0.12); }

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* --- Who Is It For --- */
.who-is-it-for {
  background: var(--bg-secondary);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.audience-card {
  padding: 36px 28px;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.04);
  text-align: center;
  transition: all var(--transition);
}

.audience-card:hover {
  transform: translateY(-5px);
  border-color: rgba(16, 185, 129, 0.2);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.audience-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  display: block;
}

.audience-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.audience-card p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
}

/* --- Productivity Section --- */
.productivity-section {
  position: relative;
  overflow: hidden;
}

.productivity-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--glow-green) 0%, transparent 70%);
  opacity: 0.15;
  pointer-events: none;
}

.productivity-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.productivity-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}

.productivity-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.productivity-stats {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.productivity-stat {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: all var(--transition);
}

.productivity-stat:hover {
  border-color: rgba(16, 185, 129, 0.15);
  transform: translateX(8px);
}

.productivity-stat-icon {
  width: 52px;
  height: 52px;
  background: var(--accent-gradient);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.productivity-stat h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.productivity-stat p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.productivity-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Comparison card */
.comparison-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 40px;
  box-shadow: var(--shadow);
}

.comparison-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.comparison-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.comparison-row:first-child {
  padding-top: 0;
}

.comparison-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.comparison-label .icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.comparison-label .icon.gray {
  background: rgba(100, 116, 139, 0.2);
}

.comparison-label .icon.green {
  background: rgba(16, 185, 129, 0.2);
}

.comparison-value {
  font-weight: 600;
  font-size: 0.95rem;
}

.comparison-value.negative {
  color: var(--text-muted);
  text-decoration: line-through;
  opacity: 0.6;
}

.comparison-value.positive {
  color: var(--accent-green);
}

/* --- Demo Section --- */
.demo-section { background: var(--bg-secondary); }

.demo-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.demo-content .demo-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-top: 36px;
}

.demo-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.demo-list .check {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 185, 129, 0.15);
  border-radius: 10px;
  font-size: 0.9rem;
  margin-top: 2px;
}

.demo-list li div h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 5px;
}

.demo-list li div p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Audio player mockup */
.audio-player-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 36px;
  box-shadow: var(--shadow), 0 0 40px var(--glow-green);
}

.player-header {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 28px;
}

.player-cover {
  width: 68px;
  height: 68px;
  background: var(--accent-gradient);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 0 25px var(--glow-green);
}

.player-info h4 {
  font-size: 1.05rem;
  font-weight: 700;
}

.player-info p {
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.player-waveform {
  display: flex;
  align-items: end;
  gap: 2px;
  height: 52px;
  margin-bottom: 18px;
}

.player-waveform span {
  flex: 1;
  background: var(--accent-green);
  border-radius: 2px;
  opacity: 0.5;
  transition: opacity var(--transition);
}

.player-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.player-time {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.player-btns {
  display: flex;
  gap: 18px;
  align-items: center;
}

.player-btn {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition);
}

.player-btn.play {
  width: 56px;
  height: 56px;
  background: var(--accent-gradient);
  border: none;
  font-size: 1.4rem;
  box-shadow: 0 4px 20px var(--glow-green);
}

.player-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.player-btn.play:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 30px var(--glow-green);
}

.player-topics {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.player-topic-tag {
  padding: 6px 14px;
  background: rgba(20, 184, 166, 0.1);
  border: 1px solid rgba(20, 184, 166, 0.2);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--accent-teal);
}

/* --- FAQ Section --- */
.faq-section {
  background: var(--bg-secondary);
}

.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.04);
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover {
  border-color: rgba(16, 185, 129, 0.1);
}

.faq-question {
  width: 100%;
  padding: 22px 26px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--accent-green);
  transition: transform var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 200px;
}

.faq-answer p {
  padding: 0 26px 22px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--glow-green) 0%, transparent 70%);
  opacity: 0.2;
  pointer-events: none;
}

.cta-box {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}

.cta-box .section-subtitle {
  margin: 0 auto 44px;
}

.cta-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 20px 44px;
  background: #25D366;
  color: #fff !important;
  border-radius: 50px;
  font-size: 1.15rem;
  font-weight: 700;
  transition: all var(--transition);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.3);
}

.cta-whatsapp:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 10px 40px rgba(37, 211, 102, 0.4);
  color: #fff;
}

.cta-whatsapp svg {
  width: 26px;
  height: 26px;
  fill: #fff;
}

/* --- Footer --- */
.footer {
  padding: 56px 0 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
}

.footer-brand .logo-icon {
  width: 30px;
  height: 30px;
  background: var(--accent-gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.footer-text {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text-primary); }

/* --- Mobile Nav --- */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 10, 15, 0.98);
  backdrop-filter: blur(25px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
}

.mobile-nav.active { display: flex; }

.mobile-nav a {
  color: var(--text-primary);
  font-size: 1.6rem;
  font-weight: 600;
}

.mobile-close {
  position: absolute;
  top: 22px;
  right: 26px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
}

/* --- Responsive --- */
@media (max-width: 1100px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 50px;
  }
  .hero-content { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-visual { order: -1; }
  .phone-mockup { width: 280px; }
  
  .steps-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .step-card::after { display: none !important; }
  
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  
  .productivity-grid { grid-template-columns: 1fr; }
  .productivity-visual { order: -1; }
  
  .demo-container { grid-template-columns: 1fr; }
  
  .stats-bar { gap: 40px; flex-wrap: wrap; }
}

@media (max-width: 768px) {
  .navbar-links { display: none; }
  .mobile-toggle { display: block; }
  
  .section { padding: 80px 0; }
  
  .features-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .audience-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  
  .hero-title { font-size: 2.3rem; }
  .hero-description { font-size: 1.1rem; }
  
  .stats-bar { gap: 28px; }
  .stat-value { font-size: 2.2rem; }
  
  .comparison-card { padding: 28px; }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary, .btn-secondary { 
    width: 100%; 
    justify-content: center; 
    padding: 14px 28px;
  }
  .phone-mockup { width: 250px; }
  
  .stats-bar { gap: 20px; }
  .stat-value { font-size: 1.8rem; }
  .stat-label { font-size: 0.8rem; }
  
  .cta-whatsapp {
    padding: 16px 32px;
    font-size: 1rem;
  }
}