/* ==========================================================================
   SiteSpeak Landing Page Styles
   Bold, distinctive design with grain texture and animated elements
   ========================================================================== */

/* CSS Variables */
:root {
  --color-black: #0a0a0a;
  --color-white: #ffffff;
  --color-cream: #faf9f7;
  --color-gray-100: #f5f5f4;
  --color-gray-200: #e7e5e4;
  --color-gray-300: #d6d3d1;
  --color-gray-400: #a8a29e;
  --color-gray-500: #78716c;
  --color-gray-600: #57534e;
  --color-gray-700: #44403c;
  --color-gray-800: #292524;
  --color-gray-900: #1c1917;

  --color-accent: #ff5722;
  --color-accent-dark: #e64a19;
  --color-accent-light: #ff8a65;

  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-800);
  background: var(--color-cream);
  overflow-x: hidden;
}

/* Grain Overlay */
.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-black);
}

em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-black);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-gray-800);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-black);
  border: 2px solid var(--color-gray-200);
}

.btn-secondary:hover {
  border-color: var(--color-black);
  transform: translateY(-2px);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  background: rgba(250, 249, 247, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 1.1rem;
}

.logo-icon-svg {
  flex-shrink: 0;
}

.logo-text {
  color: var(--color-black);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-gray-600);
}

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

.nav-cta {
  padding: var(--space-sm) var(--space-lg) !important;
  background: var(--color-black);
  color: var(--color-white) !important;
  border-radius: var(--radius-full);
}

.nav-cta:hover {
  background: var(--color-gray-800);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-sm);
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-black);
  transition: var(--transition-base);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-4xl);
  padding: calc(80px + var(--space-4xl)) var(--space-lg) var(--space-4xl);
  max-width: 1400px;
  margin: 0 auto;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.hero-gradient {
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse at center, rgba(255, 87, 34, 0.08) 0%, transparent 70%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s ease-in-out infinite;
}

.hero-orb-1 {
  top: 10%;
  right: 20%;
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, #ff5722 0%, #ff9800 100%);
  animation-delay: -5s;
}

.hero-orb-2 {
  bottom: 20%;
  left: 30%;
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, #2196f3 0%, #00bcd4 100%);
  animation-delay: -10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 70% 30%, black 0%, transparent 70%);
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-600);
  margin-bottom: var(--space-xl);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.title-accent {
  display: inline-block;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--color-gray-600);
  margin-bottom: var(--space-2xl);
}

/* Hero Form */
.hero-form {
  margin-bottom: var(--space-2xl);
}

.form-row {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 360px;
}

.input-group {
  position: relative;
  flex: 1;
  min-width: 180px;
}

.input-group input {
  width: 100%;
  padding: var(--space-md) var(--space-md) var(--space-md) 48px;
  font-family: var(--font-sans);
  font-size: 1rem;
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.input-with-prefix {
  display: flex;
  background: var(--color-gray-100);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast);
  overflow: hidden;
}

.input-with-prefix:focus-within {
  border-color: var(--color-black);
}

.input-prefix {
  display: flex;
  align-items: center;
  padding: 0 var(--space-md);
  background: var(--color-gray-100);
  color: var(--color-gray-500);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  white-space: nowrap;
  border-right: 1px solid var(--color-gray-200);
}

.input-with-prefix input {
  flex: 1;
  padding: var(--space-md);
  border: none;
  background: var(--color-white);
  font-family: var(--font-sans);
  font-size: 1rem;
}

.input-with-prefix input:focus {
  outline: none;
}

/* Remove icon padding for inputs inside prefix group */
.input-with-prefix.input-group input {
  padding-left: var(--space-md);
}

/* Input without icon - normal padding */
.input-group.input-no-icon input {
  padding-left: var(--space-md);
}

.input-group input:focus {
  outline: none;
  border-color: var(--color-black);
}

.input-group input::placeholder {
  color: var(--color-gray-400);
}

.input-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  pointer-events: none;
}

.hero-form .btn {
  padding: var(--space-md) var(--space-xl);
}

.btn-full {
  width: 100%;
}

.form-note {
  margin-top: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.stat {
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-black);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-gray-200);
}

/* Hero Visual */
.hero-visual {
  position: relative;
}

.browser-mockup {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.05),
    0 25px 50px -12px rgba(0,0,0,0.15);
  overflow: hidden;
  transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
  transition: transform var(--transition-slow);
}

.browser-mockup:hover {
  transform: perspective(1000px) rotateY(-2deg) rotateX(1deg);
}

.browser-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-gray-100);
  border-bottom: 1px solid var(--color-gray-200);
}

.browser-dots {
  display: flex;
  gap: 6px;
}

.browser-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-gray-300);
}

.browser-dots span:first-child { background: #ff5f57; }
.browser-dots span:nth-child(2) { background: #febc2e; }
.browser-dots span:last-child { background: #28c840; }

.browser-url {
  flex: 1;
  padding: var(--space-xs) var(--space-md);
  background: var(--color-white);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--color-gray-500);
  text-align: center;
}

.browser-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  padding: var(--space-2xl);
  background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-cream) 100%);
  min-height: 350px;
}

/* Before/After Mockups */
.mockup-before, .mockup-after {
  position: relative;
  padding: var(--space-sm);
}

.mockup-label {
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-black);
  color: var(--color-white);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  z-index: 1;
}

.mockup-old {
  width: 140px;
  padding: var(--space-md);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  opacity: 0.7;
}

.old-header {
  height: 20px;
  background: var(--color-gray-300);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.old-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.old-block {
  height: 30px;
  background: var(--color-gray-200);
  border-radius: var(--radius-sm);
}

.old-block.small {
  width: 60%;
  height: 20px;
}

.mockup-arrow {
  color: var(--color-accent);
  animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes arrowPulse {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(10px); }
}

.mockup-new {
  position: relative;
  width: 180px;
  padding: var(--space-md);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
}

.new-header {
  display: flex;
  justify-content: space-between;
  height: 15px;
  background: linear-gradient(90deg, var(--color-black) 30%, transparent 30%);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.new-hero {
  height: 50px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.new-cards {
  display: flex;
  gap: var(--space-sm);
}

.new-card {
  flex: 1;
  height: 40px;
  background: var(--color-gray-100);
  border-radius: var(--radius-sm);
}

.voice-widget-mini {
  position: absolute;
  bottom: -10px;
  right: -10px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
}

.widget-pulse {
  position: absolute;
  inset: -4px;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  animation: widgetPulse 2s ease-out infinite;
}

@keyframes widgetPulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}

/* ==========================================================================
   Logos Section
   ========================================================================== */
.logos-section {
  padding: var(--space-3xl) 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-200);
  border-bottom: 1px solid var(--color-gray-200);
  overflow: hidden;
}

.logos-label {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-gray-500);
  margin-bottom: var(--space-xl);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.logos-track {
  display: flex;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.logos-slide {
  display: flex;
  gap: var(--space-4xl);
  animation: scroll 20s linear infinite;
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.logo-item {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--color-gray-400);
  white-space: nowrap;
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.features {
  padding: var(--space-5xl) 0;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-4xl);
}

.section-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-600);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-gray-600);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-2xl);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.feature-card.feature-large {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto auto;
  gap: var(--space-2xl);
  background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-900) 100%);
  color: var(--color-white);
  border-color: transparent;
}

.feature-card.feature-large .feature-icon {
  grid-column: 1;
  grid-row: 1;
}

.feature-card.feature-large h3 {
  grid-column: 1;
  grid-row: 2;
  color: var(--color-white);
}

.feature-card.feature-large p {
  grid-column: 1;
  grid-row: 3;
  color: var(--color-gray-400);
}

.feature-card.feature-large .feature-demo {
  grid-column: 2;
  grid-row: 1 / -1;
}

.feature-card.feature-large:hover {
  transform: translateY(-4px);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-gray-100);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
  color: var(--color-black);
}

.feature-large .feature-icon {
  background: rgba(255,255,255,0.1);
  color: var(--color-accent);
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--color-gray-600);
  line-height: 1.6;
}

.feature-demo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.voice-demo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-2xl);
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-xl);
}

.voice-wave {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 40px;
}

.voice-wave span {
  width: 4px;
  height: 20px;
  background: var(--color-accent);
  border-radius: 2px;
  animation: wave 1s ease-in-out infinite;
}

.voice-wave span:nth-child(1) { animation-delay: 0s; }
.voice-wave span:nth-child(2) { animation-delay: 0.1s; }
.voice-wave span:nth-child(3) { animation-delay: 0.2s; }
.voice-wave span:nth-child(4) { animation-delay: 0.3s; }
.voice-wave span:nth-child(5) { animation-delay: 0.4s; }

@keyframes wave {
  0%, 100% { height: 20px; }
  50% { height: 40px; }
}

.voice-text {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--color-gray-400);
  min-height: 1.6rem;
  display: inline-block;
}

/* ==========================================================================
   How It Works
   ========================================================================== */
.how-it-works {
  padding: var(--space-5xl) 0;
  background: var(--color-white);
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 280px;
  max-width: 320px;
  padding: var(--space-2xl);
  background: var(--color-cream);
  border-radius: var(--radius-xl);
  text-align: center;
}

.step-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-gray-200);
  margin-bottom: var(--space-lg);
}

.step-content h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.step-content p {
  font-size: 0.95rem;
  color: var(--color-gray-600);
}

.step-visual {
  margin-top: var(--space-xl);
}

.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.step-connector {
  display: flex;
  align-items: center;
  color: var(--color-gray-300);
  margin-top: 80px;
}

/* ==========================================================================
   Voice Demo Section
   ========================================================================== */
.voice-demo-section {
  padding: var(--space-5xl) 0;
  background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-900) 100%);
  color: var(--color-white);
}

.voice-demo-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.voice-demo-content .section-tag {
  background: rgba(255,255,255,0.1);
  color: var(--color-gray-400);
}

.voice-demo-content .section-title {
  color: var(--color-white);
}

.voice-demo-content p {
  color: var(--color-gray-400);
  margin-bottom: var(--space-xl);
}

.voice-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.voice-features li {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--color-gray-300);
}

.voice-features svg {
  color: var(--color-accent);
}

/* Phone Mockup */
.voice-demo-visual {
  display: flex;
  justify-content: center;
}

/* Voice Call Mockup */
.voice-call-mockup {
  width: 320px;
  background: var(--color-gray-900);
  border-radius: 40px;
  padding: 12px;
  box-shadow:
    0 0 0 2px var(--color-gray-700),
    0 25px 50px -12px rgba(0,0,0,0.5);
}

.voice-call-screen {
  background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
  border-radius: 32px;
  overflow: hidden;
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}

.voice-call-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.voice-call-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: var(--color-white);
  border-radius: 50%;
  margin-bottom: var(--space-md);
}

.voice-call-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-white);
}

.voice-call-status {
  font-size: 0.875rem;
  color: #4ade80;
}

.voice-call-visualizer {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl) 0;
}

.voice-bars {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 60px;
}

.voice-bars span {
  width: 4px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-light));
  border-radius: 2px;
  animation: voice-bar 1s ease-in-out infinite;
}

.voice-bars span:nth-child(1) { height: 20px; animation-delay: 0s; }
.voice-bars span:nth-child(2) { height: 35px; animation-delay: 0.1s; }
.voice-bars span:nth-child(3) { height: 50px; animation-delay: 0.2s; }
.voice-bars span:nth-child(4) { height: 40px; animation-delay: 0.3s; }
.voice-bars span:nth-child(5) { height: 55px; animation-delay: 0.4s; }
.voice-bars span:nth-child(6) { height: 45px; animation-delay: 0.5s; }
.voice-bars span:nth-child(7) { height: 35px; animation-delay: 0.6s; }
.voice-bars span:nth-child(8) { height: 50px; animation-delay: 0.7s; }
.voice-bars span:nth-child(9) { height: 30px; animation-delay: 0.8s; }
.voice-bars span:nth-child(10) { height: 25px; animation-delay: 0.9s; }

@keyframes voice-bar {
  0%, 100% { transform: scaleY(0.5); opacity: 0.5; }
  50% { transform: scaleY(1); opacity: 1; }
}

.voice-call-transcript {
  padding: var(--space-md);
  margin: 0 var(--space-md);
}

.voice-call-transcript p {
  color: var(--color-gray-400);
  font-size: 0.875rem;
  font-style: italic;
  line-height: 1.5;
}

.voice-call-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  padding-top: var(--space-lg);
}

.voice-control-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.voice-control-btn.mute,
.voice-control-btn.speaker {
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
}

.voice-control-btn.end-call {
  width: 60px;
  height: 60px;
  background: #ef4444;
  color: var(--color-white);
  transform: rotate(135deg);
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */
.pricing {
  padding: var(--space-5xl) 0;
}

/* Currency Toggle */
.currency-toggle {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  margin-top: var(--space-lg);
  padding: 4px;
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.currency-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all var(--transition-base);
}

.currency-btn:hover {
  color: var(--color-black);
}

.currency-btn.active {
  background: var(--color-white);
  color: var(--color-black);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.currency-symbol {
  font-size: 1rem;
  font-weight: 700;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
  border-color: var(--color-black);
  box-shadow: var(--shadow-xl);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-black);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
}

.pricing-header {
  margin-bottom: var(--space-xl);
}

.pricing-header h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.pricing-header p {
  font-size: 0.95rem;
  color: var(--color-gray-500);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
}

.pricing-price .currency {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-gray-600);
}

.pricing-price .amount {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
}

.pricing-price .period {
  font-size: 1rem;
  color: var(--color-gray-500);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.95rem;
}

.pricing-features li svg {
  flex-shrink: 0;
  color: var(--color-gray-500);
}

.pricing-features li.highlight {
  font-weight: 600;
  color: var(--color-black);
}

.pricing-features li.highlight svg {
  color: var(--color-accent);
}

.pricing-features li.disabled {
  color: var(--color-gray-400);
}

.pricing-card .btn {
  width: 100%;
}

/* ==========================================================================
   Final CTA
   ========================================================================== */
.final-cta {
  padding: var(--space-5xl) 0;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.cta-content p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: var(--space-2xl);
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 400px;
  margin: 0 auto;
}

.cta-form input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-sans);
  font-size: 1rem;
  background: var(--color-white);
  border: none;
  border-radius: var(--radius-lg);
}

.cta-form .input-with-prefix {
  display: flex;
  background: var(--color-gray-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cta-form .input-with-prefix .input-prefix {
  display: flex;
  align-items: center;
  padding: 0 var(--space-md);
  background: var(--color-gray-100);
  border-right: 1px solid var(--color-gray-200);
}

.cta-form .input-with-prefix input {
  flex: 1;
  padding: var(--space-md);
  border: none;
  background: var(--color-white);
}

.cta-form input::placeholder {
  color: var(--color-gray-400);
}

.cta-form .btn-primary {
  background: var(--color-black);
  width: 100%;
}

.cta-form .btn-primary:hover {
  background: var(--color-gray-900);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: var(--space-4xl) 0 var(--space-xl);
  background: var(--color-black);
  color: var(--color-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  margin-top: var(--space-md);
  font-size: 0.95rem;
  color: var(--color-gray-500);
  max-width: 280px;
}

.footer-brand .nav-logo .logo-icon {
  background: var(--color-white);
  color: var(--color-black);
}

.footer-brand .nav-logo .logo-text {
  color: var(--color-white);
}

.footer-links h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gray-400);
  margin-bottom: var(--space-lg);
}

.footer-links a {
  display: block;
  font-size: 0.95rem;
  color: var(--color-gray-400);
  margin-bottom: var(--space-sm);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-gray-800);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

.footer-bottom a {
  color: var(--color-gray-400);
}

.footer-bottom a:hover {
  color: var(--color-white);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    padding-top: calc(80px + var(--space-3xl));
  }

  .hero-visual {
    display: none;
  }

  .feature-card.feature-large {
    grid-template-columns: 1fr;
  }

  .voice-demo-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .voice-features {
    align-items: center;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .form-row {
    flex-direction: column;
  }

  .hero-stats {
    flex-wrap: wrap;
    justify-content: center;
  }

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

  .feature-card.feature-large {
    grid-column: span 1;
  }

  .steps {
    flex-direction: column;
    align-items: center;
  }

  .step-connector {
    display: none;
  }

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

  .cta-form {
    flex-direction: column;
  }

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

  .footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .footer-brand p {
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 2.5rem;
    --space-4xl: 3rem;
    --space-5xl: 4rem;
  }

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

  .section-title {
    font-size: 1.75rem;
  }
}

/* Mobile Menu Active State */
.nav.menu-open .mobile-menu-btn span:first-child {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav.menu-open .mobile-menu-btn span:last-child {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-cream);
  padding: var(--space-xl);
  z-index: 999;
}

.nav.menu-open + .mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.mobile-nav a {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-black);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

/* Form States */
.input-group input:valid {
  border-color: var(--color-gray-300);
}

.hero-form.submitting .btn,
.cta-form.submitting .btn {
  pointer-events: none;
  opacity: 0.7;
}

.hero-form.submitting .btn span,
.cta-form.submitting .btn span {
  opacity: 0;
}

.hero-form.submitting .btn::after,
.cta-form.submitting .btn::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Success State */
.form-success {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: var(--color-white);
  border: 2px solid #28c840;
  border-radius: var(--radius-lg);
  color: #28c840;
  font-weight: 600;
}

.form-success svg {
  width: 24px;
  height: 24px;
}