/* ============================================================
   PROTOTIPANDO3D — Design System & Landing Page Styles
   Dark premium theme | Glassmorphism | Neon accents
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --- Design Tokens --- */
:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a28;
  --bg-card: rgba(18, 18, 26, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-hover: rgba(255, 255, 255, 0.06);

  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b82;

  --cyan: #00f0ff;
  --cyan-glow: rgba(0, 240, 255, 0.25);
  --cyan-deep: #0099aa;

  --violet: #7928ca;
  --violet-glow: rgba(121, 40, 202, 0.25);
  --violet-light: #a855f7;

  --emerald: #10b981;
  --emerald-glow: rgba(16, 185, 129, 0.25);

  --red-alert: #ef4444;
  --red-glow: rgba(239, 68, 68, 0.25);

  --amber: #f59e0b;
  --amber-glow: rgba(245, 158, 11, 0.25);

  --border: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(0, 240, 255, 0.15);

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #0a0a0f 0%, #12121a 40%, #1a1028 100%);
  --gradient-cyan-violet: linear-gradient(135deg, var(--cyan), var(--violet));
  --gradient-card: linear-gradient(135deg, rgba(0, 240, 255, 0.05) 0%, rgba(121, 40, 202, 0.05) 100%);
  --gradient-glow: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 240, 255, 0.06), transparent 40%);

  /* Typography */
  --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --fs-xs: clamp(0.7rem, 0.8vw, 0.8rem);
  --fs-sm: clamp(0.8rem, 0.9vw, 0.9rem);
  --fs-base: clamp(0.95rem, 1vw, 1.05rem);
  --fs-md: clamp(1.1rem, 1.2vw, 1.25rem);
  --fs-lg: clamp(1.3rem, 1.6vw, 1.6rem);
  --fs-xl: clamp(1.8rem, 2.5vw, 2.5rem);
  --fs-2xl: clamp(2.2rem, 3.5vw, 3.5rem);
  --fs-hero: clamp(2.8rem, 5vw, 5rem);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --section-pad: clamp(4rem, 8vw, 8rem);

  /* Layout */
  --max-width: 1280px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow-cyan: 0 0 30px rgba(0, 240, 255, 0.15), 0 0 60px rgba(0, 240, 255, 0.05);
  --shadow-glow-violet: 0 0 30px rgba(121, 40, 202, 0.15), 0 0 60px rgba(121, 40, 202, 0.05);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 200ms var(--ease-out);
  --transition-normal: 350ms var(--ease-out);
  --transition-slow: 600ms var(--ease-out);
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* --- Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem);
}

.section-pad {
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
}

.text-gradient {
  background: var(--gradient-cyan-violet);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-cyan { color: var(--cyan); }
.text-violet { color: var(--violet-light); }
.text-emerald { color: var(--emerald); }
.text-muted { color: var(--text-secondary); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-glow);
  background: rgba(0, 240, 255, 0.06);
  color: var(--cyan);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: var(--space-lg);
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
}

.section-title {
  font-size: var(--fs-2xl);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: var(--fs-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-cyan-violet);
  color: #fff;
  box-shadow: var(--shadow-glow-cyan);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.3), 0 0 80px rgba(0, 240, 255, 0.1);
}

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

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  border-color: var(--cyan);
  background: rgba(0, 240, 255, 0.06);
  box-shadow: var(--shadow-glow-cyan);
}

.btn-lg {
  padding: 18px 40px;
  font-size: var(--fs-md);
}

/* Glow blob behind primary button */
.btn-primary::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: var(--gradient-cyan-violet);
  opacity: 0;
  filter: blur(20px);
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.btn-primary:hover::before { opacity: 0.6; }

/* --- Glass Card --- */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.glass-card:hover { border-color: var(--border-glow); }
.glass-card:hover::before { opacity: 1; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-lg);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav-logo .logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--gradient-cyan-violet);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.nav-logo .logo-icon--img {
  background: none;
  object-fit: contain;
}

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

.nav-links a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
  transition: width var(--transition-normal);
}

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

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

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(10, 10, 15, 0.3) 0%,
    rgba(10, 10, 15, 0.6) 40%,
    rgba(10, 10, 15, 0.95) 80%,
    var(--bg-primary) 100%);
}

/* Animated grid overlay */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridShift 25s linear infinite;
  z-index: 1;
}

@keyframes gridShift {
  from { transform: translateY(0); }
  to { transform: translateY(60px); }
}

/* Floating glow orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: orbFloat 12s ease-in-out infinite alternate;
  z-index: 1;
}

.hero-orb--cyan {
  width: 500px;
  height: 500px;
  background: var(--cyan);
  top: -10%;
  right: -5%;
  opacity: 0.12;
}

.hero-orb--violet {
  width: 600px;
  height: 600px;
  background: var(--violet);
  bottom: -15%;
  left: -10%;
  opacity: 0.1;
  animation-delay: -4s;
}

@keyframes orbFloat {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -20px) scale(1.1); }
  100% { transform: translate(-20px, 30px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-content .badge {
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s var(--ease-out) both;
}

.hero-title {
  font-size: var(--fs-hero);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s var(--ease-out) 0.1s both;
}

.hero-desc {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-2xl);
  line-height: 1.6;
  animation: fadeInUp 0.8s var(--ease-out) 0.2s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
  animation: fadeInUp 0.8s var(--ease-out) 0.3s both;
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  animation: fadeInUp 0.8s var(--ease-out) 0.4s both;
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-size: var(--fs-xl);
  font-weight: 800;
  font-family: var(--font-mono);
  background: var(--gradient-cyan-violet);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   PAIN POINTS / PROBLEMS
   ============================================================ */
.problems {
  position: relative;
  background: var(--bg-secondary);
}

.problems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.problem-card {
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--red-alert), var(--amber));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.problem-card:hover {
  border-color: rgba(239, 68, 68, 0.2);
  transform: translateY(-4px);
}

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

.problem-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--red-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--space-lg);
}

.problem-card h3 {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.problem-card p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================================
   FEATURES
   ============================================================ */
.features {
  position: relative;
}

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

.feature-card {
  position: relative;
  padding: var(--space-2xl);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all var(--transition-normal);
  overflow: hidden;
}

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

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

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: var(--space-lg);
  background: var(--cyan-glow);
}

.feature-icon--violet { background: var(--violet-glow); }
.feature-icon--emerald { background: var(--emerald-glow); }

.feature-card h3 {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.feature-tag {
  display: inline-block;
  margin-top: var(--space-md);
  padding: 4px 12px;
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-glow);
  color: var(--cyan);
  font-family: var(--font-mono);
}

/* ============================================================
   AI DEMO — Interactive Computer Vision Simulator
   ============================================================ */
.ai-demo {
  position: relative;
  background: var(--bg-secondary);
}

.ai-demo-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-top: var(--space-3xl);
}

.ai-demo-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 16/10;
  background: #000;
}

.ai-demo-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-normal);
}

/* Bounding box overlay */
.ai-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.bbox {
  position: absolute;
  border: 2px solid var(--emerald);
  border-radius: 4px;
  opacity: 0;
  transition: all 0.5s var(--ease-out);
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.3);
}

.bbox.active { opacity: 1; }

.bbox-label {
  position: absolute;
  top: -28px;
  left: -2px;
  padding: 2px 10px;
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  background: var(--emerald);
  color: #000;
  border-radius: 4px 4px 0 0;
  white-space: nowrap;
}

.bbox--danger {
  border-color: var(--red-alert);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.3);
}

.bbox--danger .bbox-label {
  background: var(--red-alert);
  color: #fff;
}

.bbox--warning {
  border-color: var(--amber);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.3);
}

.bbox--warning .bbox-label {
  background: var(--amber);
  color: #000;
}

/* AI Decision */
.ai-decision {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  font-weight: 500;
  opacity: 0;
  transform: translateY(12px);
  transition: all 0.5s var(--ease-out) 0.3s;
}

.ai-decision.active {
  opacity: 1;
  transform: translateY(0);
}

.ai-decision-icon {
  font-size: 22px;
  flex-shrink: 0;
}

/* Scenario tabs */
.ai-tabs {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.ai-tab {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: left;
  width: 100%;
}

.ai-tab:hover {
  border-color: var(--border-glow);
  background: var(--bg-glass-hover);
}

.ai-tab.active {
  border-color: var(--cyan);
  background: rgba(0, 240, 255, 0.06);
  box-shadow: var(--shadow-glow-cyan);
}

.ai-tab-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  background: var(--bg-glass);
}

.ai-tab.active .ai-tab-icon {
  background: var(--cyan-glow);
}

.ai-tab-text h4 {
  font-size: var(--fs-base);
  font-weight: 600;
  margin-bottom: 2px;
}

.ai-tab-text p {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

/* Scanning line effect */
.scan-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 20px var(--cyan), 0 0 40px var(--cyan);
  opacity: 0;
  z-index: 5;
}

.scan-line.active {
  opacity: 1;
  animation: scanDown 1.5s var(--ease-out);
}

@keyframes scanDown {
  from { top: 0; opacity: 1; }
  to { top: 100%; opacity: 0; }
}

/* ============================================================
   DASHBOARD PREVIEW
   ============================================================ */
.dashboard-section {
  position: relative;
}

.dashboard-image-wrapper {
  margin-top: var(--space-3xl);
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.dashboard-image-wrapper img {
  width: 100%;
  display: block;
}

.dashboard-image-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, var(--bg-primary) 100%);
  z-index: 1;
  pointer-events: none;
}

/* Floating badges on dashboard */
.dash-float {
  position: absolute;
  z-index: 2;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: floatBadge 4s ease-in-out infinite alternate;
}

.dash-float--1 {
  top: 12%;
  right: 5%;
  animation-delay: 0s;
}

.dash-float--2 {
  bottom: 25%;
  left: 5%;
  animation-delay: -1.5s;
}

.dash-float--3 {
  top: 40%;
  right: 8%;
  animation-delay: -3s;
}

@keyframes floatBadge {
  from { transform: translateY(0); }
  to { transform: translateY(-8px); }
}

/* ============================================================
   ROI CALCULATOR
   ============================================================ */
.calculator {
  position: relative;
  background: var(--bg-secondary);
}

.calc-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  margin-top: var(--space-3xl);
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.calc-group label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.calc-group .range-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
}

.calc-group .range-value {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--cyan);
  font-size: var(--fs-md);
}

/* Custom range slider */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-tertiary);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--cyan);
  cursor: pointer;
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.4);
  transition: all var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--cyan);
  cursor: pointer;
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.4);
}

/* Results panel */
.calc-results {
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  background: var(--gradient-card);
  border: 1px solid var(--border-glow);
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.calc-result-item {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--bg-glass);
  border: 1px solid var(--border);
}

.calc-result-item .label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: 4px;
}

.calc-result-item .value {
  font-size: var(--fs-xl);
  font-weight: 800;
  font-family: var(--font-mono);
}

.calc-result-item .value.savings { color: var(--emerald); }
.calc-result-item .value.time { color: var(--cyan); }
.calc-result-item .value.roi { color: var(--violet-light); }

.calc-result-item .detail {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   PRICING
   ============================================================ */
.pricing {
  position: relative;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
  align-items: start;
}

.price-card {
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.price-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
}

.price-card--featured {
  border-color: var(--cyan);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.04) 0%, rgba(121, 40, 202, 0.04) 100%);
  box-shadow: var(--shadow-glow-cyan);
}

.price-card--featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-cyan-violet);
}

.price-popular {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 14px;
  font-size: var(--fs-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  background: var(--gradient-cyan-violet);
  color: #fff;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.price-name {
  font-size: var(--fs-md);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.price-desc {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.price-amount {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  margin-bottom: var(--space-xs);
}

.price-currency {
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--text-secondary);
  align-self: flex-start;
  margin-top: 8px;
}

.price-value {
  font-size: var(--fs-hero);
  font-weight: 900;
  font-family: var(--font-mono);
  line-height: 1;
  letter-spacing: -0.03em;
}

.price-period {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.price-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.price-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.price-feature .check {
  color: var(--emerald);
  font-size: 16px;
  flex-shrink: 0;
}

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

/* ============================================================
   TESTIMONIALS / SOCIAL PROOF
   ============================================================ */
.social-proof {
  background: var(--bg-secondary);
}

.logos-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3xl);
  flex-wrap: wrap;
  margin-top: var(--space-3xl);
  opacity: 0.5;
}

.logos-bar span {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq {
  position: relative;
}

.faq-list {
  max-width: 800px;
  margin: var(--space-3xl) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.faq-item {
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  overflow: hidden;
  transition: border-color var(--transition-normal);
}

.faq-item:hover,
.faq-item.open {
  border-color: var(--border-glow);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-lg) var(--space-xl);
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover { color: var(--cyan); }

.faq-chevron {
  font-size: 18px;
  color: var(--text-muted);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-item.open .faq-chevron { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-answer-inner {
  padding: 0 var(--space-xl) var(--space-lg);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ============================================================
   CTA FINAL
   ============================================================ */
.cta-final {
  position: relative;
  text-align: center;
  overflow: hidden;
}

.cta-final-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 30% 80%, rgba(121, 40, 202, 0.06) 0%, transparent 50%);
}

.cta-final .container {
  position: relative;
  z-index: 1;
}

.cta-final .section-title {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-final .section-desc {
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-2xl);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--border);
}

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

.footer-brand p {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-top: var(--space-md);
  max-width: 300px;
  line-height: 1.7;
}

.footer-col h4 {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-col a {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-muted);
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--cyan); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: var(--space-md);
}

.footer-socials a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.footer-socials a:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: var(--shadow-glow-cyan);
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: all 0.8s var(--ease-out);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   COUNTER ANIMATION
   ============================================================ */
.counter-value {
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-demo-wrapper { grid-template-columns: 1fr; }
  .calc-wrapper { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-2xl); }
}

/* Mobile */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta .btn-secondary { display: none; }
  .mobile-toggle { display: flex; }

  /* Mobile Menu */
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(20px);
    justify-content: center;
    align-items: center;
    gap: var(--space-2xl);
    z-index: 999;
  }

  .nav-links.open a { font-size: var(--fs-xl); }

  .hero-stats { flex-direction: column; gap: var(--space-lg); }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
  .footer-grid { grid-template-columns: 1fr; }

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

  .dash-float { display: none; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Selection */
::selection {
  background: rgba(0, 240, 255, 0.2);
  color: var(--text-primary);
}