@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Color Palette */
  --bg-color: #0f1115;
  /* Deep charcoal */
  --surface-color: #1a1c23;
  /* Dark graphite */
  --surface-hover: #23252e;
  --surface-light: #2b2d38;

  --primary-color: #D32F2F;
  /* Soft Red accent (Pantone 1795C approx) */
  --primary-hover: #B71C1C;
  --primary-light: rgba(211, 47, 47, 0.1);

  --text-primary: #FFFFFF;
  --text-secondary: #9CA3AF;
  --text-tertiary: #6B7280;

  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);

  --success: #10B981;
  --warning: #F59E0B;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;

  /* Layout & Spacing */
  --container-width: 1140px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(211, 47, 47, 0.15);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* Layout */
.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
}

section {
  padding: 6rem 0;
}

/* Typography */
h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

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

.text-muted {
  color: var(--text-secondary);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.35rem 0.85rem;
  background: var(--surface-light);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 1.25rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 3.5rem;
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.85rem 1.6rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background-color: transparent;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
}

.btn-primary:hover {
  transform: translateY(-1px);
  background-color: #FFFFFF;
  color: var(--bg-color);
  border-color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--surface-hover);
  border-color: var(--border-hover);
}

.btn-accent {
  background-color: var(--primary-color);
  color: #fff;
}

.btn-accent:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(15, 17, 21, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

/* Elegant Logo Styles */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 0.5rem;
  margin-left: -0.5rem;
  /* Optical alignment */
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.02);
}

.logo svg {
  width: 24px;
  height: 24px;
  color: var(--primary-color);
}

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

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 100px;
  padding: 4px 10px;
  cursor: pointer;
  transition: var(--transition-normal);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.lang-switcher:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.lang-switcher img {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  object-fit: cover;
}

/* Hero Section */
.hero {
  padding-top: 130px;
  padding-bottom: 60px;
  min-height: auto;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -5%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, rgba(211, 47, 47, 0.04) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-logo-small {
  display: inline-block;
  width: 32px;
  height: 32px;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.hero-text h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.hero-text p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Dashboard Mockup */
.dashboard-preview {
  position: relative;
  perspective: 1000px;
}

.dashboard-mockup {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: rotateY(-3deg) rotateX(3deg);
  transition: var(--transition-slow);
}

.dashboard-preview:hover .dashboard-mockup {
  transform: rotateY(0) rotateX(0);
}

.mockup-header {
  height: 36px;
  background: var(--surface-light);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 1rem;
  gap: 6px;
}

.mockup-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-color);
}

.mockup-body {
  padding: 1.25rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.mockup-card {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.mockup-card-title {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.mockup-card-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Comparison Section (Before/After) */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.comparison-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.comparison-card.before {
  border-top: 3px solid var(--text-tertiary);
}

.comparison-card.after {
  border-top: 3px solid var(--primary-color);
  background: linear-gradient(180deg, var(--surface-color) 0%, rgba(211, 47, 47, 0.02) 100%);
}

.comparison-header {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.comparison-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.comparison-card.before .comparison-list li::before {
  content: "✕";
  color: var(--text-tertiary);
  font-weight: bold;
}

.comparison-card.after .comparison-list li::before {
  content: "✓";
  color: var(--primary-color);
  font-weight: bold;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-2px);
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--surface-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--primary-color);
  font-size: 1.25rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Case Study / Social Proof */
.case-study {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 3rem;
}

.case-study-content {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case-study-quote {
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.case-study-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
}

.author-info h4 {
  font-size: 0.95rem;
  margin-bottom: 0.1rem;
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.case-study-stats {
  background: var(--surface-light);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-content: center;
}

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

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-color);
  margin-bottom: 0.25rem;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Final CTA */
.final-cta {
  background: linear-gradient(135deg, var(--surface-color) 0%, var(--bg-color) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Responsive */
@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

  .hero-text p {
    margin: 0 auto 2rem;
  }

  .hero-actions {
    justify-content: center;
  }

  .dashboard-mockup {
    transform: none;
    max-width: 600px;
    margin: 0 auto;
  }

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

  .case-study {
    grid-template-columns: 1fr;
  }

  .case-study-stats {
    padding: 2rem;
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.75rem;
  }

  .case-study-content {
    padding: 2rem;
  }

  .nav-controls .btn-primary {
    display: none;
  }

  .hero {
    padding-top: 110px;
  }
}