:root {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #eff6ff;
  --color-secondary: #64748b;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;
  --color-bg: #f8fafc;
  --color-bg-card: #ffffff;
  --color-bg-dark: #0f172a;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

html {
  position: relative;
  min-height: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

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

a:hover {
  color: var(--color-primary-hover);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-weight: 600;
  line-height: 1.3;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--color-primary);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--color-text-muted);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all var(--transition);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline-primary {
  color: var(--color-primary);
  border-color: var(--color-primary);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all var(--transition);
}

.btn-outline-primary:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ===========================
   HERO SECTION
   =========================== */
.hero-section {
  padding: 8rem 0 5rem;
  background: linear-gradient(135deg, #f0f7ff 0%, #f8fafc 50%, #faf5ff 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  padding: 0.5rem 1.25rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 4.5rem;
  }
}

.text-gradient {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

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

/* ===========================
   STATS BAR
   =========================== */
.stats-bar {
  background: white;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.5rem 0;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* ===========================
   SECTION HEADERS
   =========================== */
.section-header {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  padding: 0.375rem 1rem;
  border-radius: 2rem;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* ===========================
   TOOL CARDS
   =========================== */
.tools-section {
  background: white;
}

.tool-card {
  border-radius: var(--radius-lg) !important;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

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

.tool-card:hover .tool-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--color-primary);
}

.tool-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.tool-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.tool-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.tool-arrow {
  display: inline-flex;
  align-items: center;
  font-size: 1.5rem;
  color: var(--color-text-muted);
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--transition);
}

/* ===========================
   HOW IT WORKS
   =========================== */
.how-section {
  background: var(--color-bg);
}

.step-card {
  padding: 2rem 1.5rem;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.step-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.step-desc {
  color: var(--color-text-secondary);
  margin-bottom: 0;
  line-height: 1.7;
}

/* ===========================
   PRIVACY SECTION
   =========================== */
.privacy-card {
  background: white;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.privacy-badges {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

.privacy-badge svg {
  color: var(--color-success);
  flex-shrink: 0;
}

/* ===========================
   CTA SECTION
   =========================== */
.cta-section {
  background: var(--color-bg);
}

.cta-card {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: white;
}

.cta-card h3 {
  color: white;
}

.cta-card p {
  color: rgba(255, 255, 255, 0.7) !important;
}

@media (max-width: 576px) {
  .hero-section {
    padding: 5rem 0 3rem;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .step-card {
    padding: 1.25rem;
  }

  .privacy-card {
    padding: 1.5rem !important;
  }
}