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

:root {
  --color-bg: #ffffff;
  --color-surface: #f8f8f6;
  --color-border: #e8e8e4;
  --color-text: #1a1a1a;
  --color-text-secondary: #666660;
  --color-text-muted: #999994;
  --color-accent: #1a1a2e;
  --color-accent-light: #2d2d4e;
  --color-highlight: #4a6cf7;
  --color-highlight-soft: #eef0fd;
  --font-sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 1px 4px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
  --shadow-hover: 0 4px 20px rgba(0,0,0,0.10);
  --transition: 0.22s ease;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.6;
}

/* =============================================
   Typography
   ============================================= */
h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

p {
  color: var(--color-text-secondary);
}

/* =============================================
   Layout
   ============================================= */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

/* =============================================
   Header / Nav
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-highlight);
  background: var(--color-highlight-soft);
  padding: 5px 12px;
  border-radius: 100px;
  letter-spacing: 0.02em;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-highlight);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* =============================================
   Hero
   ============================================= */
.hero {
  padding: 100px 0 80px;
  text-align: center;
}

.hero-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 60px);
  color: var(--color-text);
  margin-bottom: 20px;
}

.hero h1 span {
  color: var(--color-highlight);
}

.domain-display {
  display: inline-block;
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-accent);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  margin: 8px 0 32px;
  font-family: 'IBM Plex Mono', monospace;
}

.hero-description {
  max-width: 520px;
  margin: 0 auto 40px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: #ffffff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.hero-cta:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(26,26,46,0.2);
}

.hero-cta svg {
  transition: transform var(--transition);
}

.hero-cta:hover svg {
  transform: translateY(2px);
}

/* =============================================
   Divider
   ============================================= */
.section-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0;
}

/* =============================================
   Benefits
   ============================================= */
.benefits {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: clamp(22px, 3vw, 30px);
  margin-bottom: 10px;
}

.section-header p {
  font-size: 16px;
  color: var(--color-text-secondary);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.benefit-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.benefit-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.benefit-icon {
  font-size: 24px;
  margin-bottom: 14px;
  display: block;
}

.benefit-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.benefit-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* =============================================
   Form Section
   ============================================= */
.form-section {
  padding: 80px 0;
}

.form-section .section-header {
  margin-bottom: 40px;
}

.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 7px;
  letter-spacing: 0.01em;
}

.form-group label span {
  color: var(--color-text-muted);
  font-weight: 400;
}

.form-group input,
.form-group textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-highlight);
  background: var(--color-bg);
  box-shadow: 0 0 0 3px rgba(74,108,247,0.08);
}

.form-group textarea {
  min-height: 120px;
}

.form-submit {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent);
  color: #ffffff;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-submit:hover {
  background: var(--color-accent-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,26,46,0.18);
}

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

.form-note {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* =============================================
   Trust Section
   ============================================= */
.trust-section {
  padding: 40px 0 80px;
}

.trust-box {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
}

.trust-icon {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.trust-box p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.trust-box strong {
  font-weight: 600;
  color: var(--color-text);
}

/* =============================================
   Footer
   ============================================= */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 36px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 13px;
  color: var(--color-text-muted);
}

.footer-contact {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.footer-contact a {
  color: var(--color-highlight);
  text-decoration: none;
}

.footer-contact a:hover {
  text-decoration: underline;
}

/* =============================================
   Animations / Fade-in
   ============================================= */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 640px) {
  section {
    padding: 60px 0;
  }

  .hero {
    padding: 70px 0 60px;
  }

  .domain-display {
    font-size: 22px;
    padding: 12px 20px;
  }

  .contact-form {
    padding: 28px 20px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .form-submit {
    flex-direction: column;
    align-items: flex-start;
  }
}