/* ==================== CSS VARIABLES ==================== */
:root {
  /* Colors - Clean Blue/White/Black with Red accent */
  --primary: #2563eb;
  --primary-light: #3b82f6;
  --primary-dark: #1d4ed8;
  
  --accent: #dc2626;
  --accent-light: #ef4444;
  --accent-soft: #fef2f2;
  
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-gray: #f1f5f9;
  
  --text-dark: #0f172a;
  --text-medium: #475569;
  --text-light: #64748b;
  --text-white: #ffffff;
  
  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;
  
  --success: #16a34a;
  --warning: #f59e0b;
  
  /* Spacing */
  --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;
  
  /* Typography */
  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Sizing */
  --max-width: 1200px;
  --header-height: 72px;
  
  /* Effects */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
  
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

::selection {
  background: var(--primary);
  color: white;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

.skip-link {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--primary);
  color: white;
  border-radius: var(--radius-md);
  transform: translateY(-200%);
  z-index: 1000;
  transition: transform var(--transition-base);
}

.skip-link:focus {
  transform: translateY(0);
}

.text-gradient {
  color: var(--primary);
}

/* ==================== HEADER ==================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-lg);
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo img {
  height: 40px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
}

.site-nav {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.btn-header {
  display: none;
}

.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
  background: var(--bg-gray);
}

.mobile-menu-toggle .bar {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.mobile-menu-toggle.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.active .bar:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
}

.btn-xl {
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1.1rem;
  font-weight: 700;
}

.btn-full {
  width: 100%;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border-medium);
  color: var(--text-dark);
}

.btn-ghost:hover {
  background: var(--bg-light);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-whatsapp {
  background: #25d366;
  color: white;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #22c55e;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.btn-accent {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.3);
}

.btn-accent:hover {
  background: var(--accent-light);
}

/* ==================== HERO SECTION ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-2xl);
  background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 100%);
  overflow: hidden;
}

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

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}

.hero-orb-1 {
  width: 500px;
  height: 500px;
  background: var(--primary);
  top: -150px;
  right: -100px;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--accent);
  bottom: -100px;
  left: -100px;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  background: var(--primary-light);
  top: 50%;
  left: 30%;
}

.hero-grid-pattern {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-2xl);
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--accent-soft);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: var(--space-lg);
}

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

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

.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  color: var(--text-dark);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

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

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.hero-proof {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--text-medium);
  font-size: 0.9rem;
}

.hero-proof-avatars {
  display: flex;
}

.hero-proof-avatars .avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-light);
  border: 3px solid var(--bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-left: -10px;
  box-shadow: var(--shadow-sm);
}

.hero-proof-avatars .avatar:first-child {
  margin-left: 0;
}

/* Hero Card */
.hero-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
}

.hero-card-header {
  margin-bottom: var(--space-lg);
}

.hero-card-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: var(--accent-soft);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.hero-card-header h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
}

.hero-form {
  display: grid;
  gap: var(--space-md);
}

.field {
  display: grid;
  gap: var(--space-xs);
}

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

.field-value {
  font-family: var(--font-mono);
  color: var(--primary);
}

.field input,
.field textarea {
  width: 100%;
  padding: var(--space-md);
  background: var(--bg-white);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-dark);
  transition: all var(--transition-fast);
}

.field input:focus,
.field textarea:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.field input::placeholder {
  color: var(--text-light);
}

.form-note {
  font-size: 0.8rem;
  color: var(--text-light);
  text-align: center;
}

/* Hero Scroll Indicator */
.hero-scroll {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-light);
  font-size: 0.8rem;
}

.scroll-indicator {
  width: 24px;
  height: 40px;
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-full);
  position: relative;
}

.scroll-indicator::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  width: 4px;
  height: 8px;
  background: var(--primary);
  border-radius: var(--radius-full);
  transform: translateX(-50%);
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { top: 8px; opacity: 1; }
  50% { top: 20px; opacity: 0.3; }
}

/* ==================== STATS SECTION ==================== */
.stats-section {
  padding: var(--space-3xl) 0;
  background: var(--primary);
  color: white;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.stat-item {
  text-align: center;
  padding: var(--space-lg);
}

.stat-number {
  display: block;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.85rem;
  opacity: 0.85;
  font-weight: 500;
}

/* ==================== SECTIONS ==================== */
.section {
  padding: var(--space-4xl) 0;
}

.section-dark {
  background: var(--text-dark);
  color: white;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}

.section-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.section-badge-light {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: white;
}

.section-header h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  color: var(--text-dark);
}

.section-dark .section-header h2 {
  color: white;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-medium);
}

.section-dark .section-header p {
  color: rgba(255, 255, 255, 0.7);
}

/* ==================== FEATURES SECTION ==================== */
.features-section {
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  gap: var(--space-lg);
}

.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(37, 99, 235, 0.05));
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
}

.feature-icon img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-dark);
}

.feature-card p {
  color: var(--text-medium);
  font-size: 0.95rem;
}

.feature-list {
  list-style: none;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-light);
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  color: var(--text-medium);
  font-size: 0.9rem;
}

.feature-list li::before {
  content: '✓';
  color: var(--success);
  font-weight: 700;
}

/* ==================== COMPARISON SECTION ==================== */
.comparison-visual {
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.comparison-chart {
  display: grid;
  gap: var(--space-md);
}

.comparison-bar {
  position: relative;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.comparison-bar .bar-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: var(--width);
  border-radius: var(--radius-md);
  transition: width 1s ease-out;
}

.comparison-bar.itachef .bar-fill {
  background: linear-gradient(90deg, var(--success), rgba(22, 163, 74, 0.5));
}

.comparison-bar.apps-15 .bar-fill {
  background: linear-gradient(90deg, var(--warning), rgba(245, 158, 11, 0.5));
}

.comparison-bar.apps-30 .bar-fill {
  background: linear-gradient(90deg, var(--accent), rgba(220, 38, 38, 0.5));
}

.bar-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--space-lg);
  color: white;
}

.bar-label {
  font-weight: 600;
}

.bar-value {
  font-family: var(--font-mono);
  font-weight: 700;
}

.comparison-note {
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.85rem;
  margin-top: var(--space-lg);
}

/* Pricing Cards */
.cards-grid {
  display: grid;
  gap: var(--space-lg);
}

.pricing-card {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
}

.pricing-card-highlight {
  background: var(--bg-white);
  border-color: var(--primary);
  color: var(--text-dark);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-xs) var(--space-md);
  background: var(--accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
}

.pricing-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

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

.pricing-value .currency {
  font-size: 1.2rem;
  font-weight: 600;
  vertical-align: top;
}

.pricing-value .amount {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
}

.pricing-card-highlight .pricing-value .amount {
  color: var(--primary);
}

.pricing-value .cents {
  font-size: 1.5rem;
  font-weight: 700;
  vertical-align: top;
}

.pricing-value .period {
  display: block;
  font-size: 0.9rem;
  color: var(--text-light);
  margin-top: var(--space-xs);
}

.pricing-value-muted .amount {
  font-size: 2rem;
  opacity: 0.8;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: var(--space-xl);
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: 0.9rem;
}

.pricing-features li svg {
  flex-shrink: 0;
  margin-top: 2px;
}

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

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

.pricing-features li:not(.negative):not(.warning) svg {
  color: var(--success);
}

.pricing-card:not(.pricing-card-highlight) .pricing-features li {
  color: rgba(255, 255, 255, 0.8);
}

/* ==================== CALCULATOR SECTION ==================== */
.calculator-section {
  background: var(--bg-light);
}

.calculator-grid {
  display: grid;
  gap: var(--space-2xl);
}

.calculator-info h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
  color: var(--text-dark);
}

.calculator-info p {
  color: var(--text-medium);
  font-size: 1.1rem;
  margin-bottom: var(--space-xl);
}

.calculator-highlights {
  display: grid;
  gap: var(--space-md);
}

.calc-highlight {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
}

.calc-highlight-icon {
  font-size: 2rem;
}

.calc-highlight strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: var(--space-xs);
}

.calc-highlight p {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--success);
  margin: 0;
}

.calculator-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
}

.calculator-form {
  display: grid;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.calculator-form input[type="range"] {
  width: 100%;
  height: 8px;
  -webkit-appearance: none;
  background: var(--bg-gray);
  border-radius: var(--radius-full);
  cursor: pointer;
}

.calculator-form input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
  transition: transform var(--transition-fast);
}

.calculator-form input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: var(--space-xs);
}

.calculator-results {
  display: grid;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-light);
  border-radius: var(--radius-lg);
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
}

.result-item span {
  color: var(--text-medium);
}

.result-item strong {
  font-family: var(--font-mono);
  font-size: 1.1rem;
}

.result-negative {
  color: var(--accent);
}

.result-positive {
  color: var(--success);
}

.result-highlight {
  padding-top: var(--space-md);
  border-top: 1px dashed var(--border-medium);
}

.result-economy {
  font-size: 1.5rem !important;
  color: var(--primary) !important;
}

/* ==================== SCREENSHOTS SECTION ==================== */
.screenshots-section {
  background: var(--bg-white);
}

.screenshots-grid {
  display: grid;
  gap: var(--space-lg);
}

.screenshot-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
}

.screenshot-card img {
  width: 100%;
  transition: transform var(--transition-base);
}

.screenshot-card:hover img {
  transform: scale(1.02);
}

.screenshot-label {
  position: absolute;
  bottom: var(--space-md);
  left: var(--space-md);
  padding: var(--space-xs) var(--space-md);
  background: var(--bg-white);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dark);
  box-shadow: var(--shadow-sm);
}

/* ==================== TESTIMONIALS ==================== */
.testimonials-grid {
  display: grid;
  gap: var(--space-lg);
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
}

.testimonial-rating {
  font-size: 1.2rem;
  margin-bottom: var(--space-md);
}

.testimonial-card blockquote {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.author-avatar {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.author-info strong {
  display: block;
  font-size: 0.95rem;
  color: white;
}

.author-info span {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ==================== FAQ SECTION ==================== */
.faq-section {
  background: var(--bg-white);
}

.faq-grid {
  max-width: 800px;
  margin: 0 auto;
}

.faq-list {
  display: grid;
  gap: var(--space-md);
}

.faq-item {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg);
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  transition: all var(--transition-fast);
}

.faq-trigger:hover {
  background: var(--bg-gray);
}

.faq-trigger svg {
  flex-shrink: 0;
  color: var(--text-light);
  transition: transform var(--transition-base);
}

.faq-item.active .faq-trigger svg {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-panel {
  padding: 0 var(--space-lg) var(--space-lg);
}

.faq-panel p {
  color: var(--text-medium);
  line-height: 1.7;
}

/* ==================== CTA SECTION ==================== */
.cta-section {
  position: relative;
  background: var(--primary);
  color: white;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.cta-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
}

.cta-orb-1 {
  width: 400px;
  height: 400px;
  background: white;
  top: -150px;
  left: -100px;
}

.cta-orb-2 {
  width: 300px;
  height: 300px;
  background: var(--accent);
  bottom: -100px;
  right: -50px;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.cta-content p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

.cta-actions {
  margin-bottom: var(--space-xl);
}

.cta-contact-info {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.contact-link:hover {
  color: white;
}

/* ==================== FOOTER ==================== */
.site-footer {
  background: var(--text-dark);
  color: white;
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  gap: var(--space-2xl);
}

.footer-brand {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.footer-brand img {
  width: 48px;
  height: 48px;
}

.footer-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.footer-subtitle {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  max-width: 280px;
}

.footer-nav-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-md);
}

.footer-nav,
.footer-contact {
  display: grid;
  gap: var(--space-sm);
}

.footer-nav a,
.footer-contact a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.footer-nav a:hover,
.footer-contact a:hover {
  color: white;
}

.footer-cta {
  text-align: center;
  padding: var(--space-xl);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
}

.footer-cta-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-light);
  margin-bottom: var(--space-xs);
}

.footer-cta-subtitle {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-lg);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  margin-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
  color: var(--primary-light);
}

/* ==================== WHATSAPP FLOAT ==================== */
.wa-float {
  position: fixed;
  right: var(--space-lg);
  bottom: var(--space-lg);
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 99;
  transition: all var(--transition-fast);
}

.wa-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.wa-float-pulse {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #25d366;
  animation: wa-pulse 2s ease-in-out infinite;
}

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

/* ==================== ANIMATIONS ==================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  transition-delay: var(--delay, 0s);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ==================== RESPONSIVE - TABLET ==================== */
@media (min-width: 640px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .screenshots-grid {
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .calculator-highlights {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==================== RESPONSIVE - DESKTOP ==================== */
@media (min-width: 1024px) {
  .site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
  }
  
  .site-nav a {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
  }
  
  .site-nav a:hover {
    color: var(--primary);
    background: var(--bg-light);
  }
  
  .mobile-menu-toggle {
    display: none;
  }
  
  .btn-header {
    display: inline-flex;
    padding: var(--space-sm) var(--space-lg);
    background: var(--primary);
    color: white;
    font-weight: 600;
    border-radius: var(--radius-full);
  }
  
  .btn-header:hover {
    background: var(--primary-dark);
  }
  
  .hero-content {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: var(--space-4xl);
  }
  
  .hero-main {
    max-width: none;
  }
  
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .feature-card-lg {
    grid-column: span 2;
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .calculator-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: center;
  }
  
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

/* ==================== MOBILE NAV OVERLAY ==================== */
@media (max-width: 1023px) {
  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    padding: var(--space-lg);
    display: grid;
    gap: var(--space-sm);
    transform: translateY(-120%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-lg);
  }
  
  .site-nav.active {
    transform: translateY(0);
  }
  
  .site-nav a {
    padding: var(--space-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    text-align: center;
  }
  
  .site-nav a:hover {
    background: var(--bg-gray);
    border-color: var(--primary);
    color: var(--primary);
  }
}