:root {
  --bg: #ffffff;
  --fg: #0f172a;
  --muted: #64748b;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-dark: #1d47a1;
  --accent-light: #3b82f6;
  --success: #10b981;
  --error: #ef4444;
  --gradient-1: linear-gradient(135deg, #00b4db 0%, #0083b0 100%);
  --gradient-2: linear-gradient(135deg, #13547a 0%, #80d0c7 100%);
  --gradient-3: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

/* Layout helpers */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.min-vh-100 {
  min-height: 100vh;
}

/* Navigation */
.nav {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.95);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-link {
  color: var(--muted);
  font-weight: 600;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--fg);
  text-decoration: none;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, #00b4db 0%, #0083b0 50%, #006b8f 100%);
  color: #ffffff;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-title {
  font-size: 4rem;
  font-weight: 900;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
  position: relative;
  z-index: 1;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: #cbd5f5;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
  font-weight: 300;
}

.hero-description {
  font-size: 1.1rem;
  color: #e2e8f0;
  line-height: 1.8;
  max-width: 600px;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.hero-cta {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: flex-start;
}

.btn-primary {
  background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
  border: none;
  color: white;
  font-weight: 700;
  padding: 0.75rem 2rem;
  border-radius: 0.5rem;
  transition: all 0.4s ease;
  display: inline-block;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(255, 107, 53, 0.4);
  text-decoration: none;
  color: white;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* Domain Card */
.domain-card {
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 1.5rem;
  padding: 2.5rem;
  backdrop-filter: blur(15px);
  position: relative;
  z-index: 1;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.domain-highlight {
  font-size: 2.5rem;
  font-weight: 900;
  color: #ffffff;
  text-align: center;
  margin-bottom: 2rem;
  letter-spacing: 0.05em;
  word-break: break-word;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.domain-specs {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.spec {
  display: flex;
  flex-direction: column;
  text-align: center;
}

.spec-label {
  font-size: 0.9rem;
  color: #cbd5f5;
  font-weight: 500;
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.spec-value {
  font-size: 1.1rem;
  color: #ffffff;
  font-weight: 600;
}

/* Features Section */
.features-section {
  padding: 5rem 0;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 3rem;
  font-weight: 400;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 1.5rem;
  border: none;
  transition: all 0.4s ease;
  text-align: center;
  height: 100%;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-1);
}

.feature-card.card-gradient-1::before {
  background: var(--gradient-1);
}

.feature-card.card-gradient-2::before {
  background: var(--gradient-2);
}

.feature-card.card-gradient-3::before {
  background: var(--gradient-3);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-card.card-gradient-1 .feature-icon {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-card.card-gradient-2 .feature-icon {
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-card.card-gradient-3 .feature-icon {
  background: var(--gradient-3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--muted);
  line-height: 1.7;
}

/* Acquire Section */
.acquire-section {
  padding: 5rem 0;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

/* Contact Form */
.contact-form {
  background: white;
  border: 2px solid var(--border);
  border-radius: 1.5rem;
  padding: 2.5rem;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.contact-form:focus-within {
  border-color: var(--accent-light);
  box-shadow: 0 12px 35px rgba(59, 130, 246, 0.15);
}

.form-row-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 640px) {
  .form-row-grid {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--fg);
  font-size: 0.95rem;
}

.form-input {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.2s;
  background: white;
  color: var(--fg);
}

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

.form-textarea {
  resize: vertical;
  min-height: 150px;
}

.submit-btn {
  background: linear-gradient(135deg, #00b4db 0%, #0083b0 100%);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 0.75rem;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.4s ease;
  width: 100%;
  letter-spacing: 0.5px;
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(0, 180, 219, 0.3);
}

.submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.form-status {
  display: none;
  padding: 1rem;
  border-radius: 0.5rem;
  margin-top: 1rem;
  font-weight: 500;
}

.form-status.success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

.form-status.error {
  background: #fee2e2;
  color: #7f1d1d;
  border: 1px solid #fca5a5;
}

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: 0.5rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.9rem;
  background: #f8fafc;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    text-align: center;
  }

  .hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    text-align: center;
  }

  .hero-description {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }

  .section-title {
    font-size: 2rem;
  }

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

  .hero-section {
    padding: 3rem 0;
    min-height: auto;
  }

  .hero-section .container {
    padding: 1rem;
  }

  .hero-section .row {
    flex-direction: column;
    text-align: center;
  }

  .hero-section .col-lg-7,
  .hero-section .col-lg-5 {
    flex: 0 0 100%;
    max-width: 100%;
  }

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

  .domain-card {
    padding: 2rem;
    margin-top: 2rem;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
  }

  .domain-highlight {
    font-size: 2rem;
  }

  .feature-card {
    padding: 1.5rem;
    margin-bottom: 1rem;
  }

  .contact-form {
    padding: 1.5rem;
  }

  .form-row-grid {
    gap: 1rem;
  }

  .features-section,
  .acquire-section {
    padding: 3rem 0;
  }

  .btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
  }

  .container {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
    text-align: center;
  }

  .hero-subtitle {
    font-size: 1.1rem;
    text-align: center;
  }

  .hero-description {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .domain-card {
    margin-top: 1.5rem;
    margin-left: auto;
    margin-right: auto;
  }

  .domain-highlight {
    font-size: 1.75rem;
  }

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

  .feature-card p {
    font-size: 0.95rem;
  }

  .contact-form {
    padding: 1.25rem;
  }

  .submit-btn {
    padding: 0.875rem 1.5rem;
    font-size: 0.95rem;
  }

  .section-subtitle {
    margin-bottom: 2rem;
  }

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