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

:root {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-text: #111111;
  --color-text-secondary: #555555;
  --color-text-muted: #888888;
  --color-primary: #0a66c2;
  --color-primary-dark: #084e96;
  --color-accent: #e8f1fb;
  --color-border: #e5e5e5;
  --color-gradient-start: #0a66c2;
  --color-gradient-end: #2196f3;
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* --- NAV --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 250, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-icon {
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--color-text);
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.85rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  color: white;
  box-shadow: 0 2px 8px rgba(10, 102, 194, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(10, 102, 194, 0.35);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  background: var(--color-surface);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.nav-links .btn {
  background: var(--color-text);
  color: white;
}

.nav-links .btn:hover {
  background: #333;
}

/* --- HERO --- */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 140px 24px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  min-height: 85vh;
}

.hero-tag {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-shape {
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), #dbeafe, #e0f2fe);
  position: relative;
  animation: float 6s ease-in-out infinite;
}

.hero-shape::before {
  content: '☁️';
  font-size: 6rem;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

/* --- SECTIONS --- */
section {
  padding: 100px 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -1px;
}

/* --- PRODUCTS --- */
.products {
  max-width: var(--max-width);
  margin: 0 auto;
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  position: relative;
  transition: all 0.3s;
  text-decoration: none;
  color: inherit;
  display: block;
}

.product-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.product-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: #dcfce7;
  color: #166534;
  margin-bottom: 20px;
}

.product-badge.soon {
  background: var(--color-accent);
  color: var(--color-primary);
}

.product-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.product-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.product-card p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.product-link {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
}

/* --- ABOUT --- */
.about {
  max-width: var(--max-width);
  margin: 0 auto;
}

.about-content > p {
  text-align: center;
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto 16px;
  line-height: 1.8;
}

.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.value {
  text-align: center;
  padding: 32px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.value-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 16px;
}

.value h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

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

/* --- CONTACT --- */
.contact {
  max-width: var(--max-width);
  margin: 0 auto;
}

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

.contact-content > p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.contact-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  transition: all 0.2s;
}

.contact-item:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

/* --- CONTACT FORM --- */
.contact-form {
  max-width: 520px;
  margin: 0 auto 32px;
  text-align: left;
}

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

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color 0.2s;
}

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

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea {
  resize: vertical;
}

.contact-form .btn {
  width: 100%;
  justify-content: center;
}

.contact-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.contact-divider::before,
.contact-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* --- FOOTER --- */
footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 24px;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.1rem;
}

footer p {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 120px 24px 60px;
    min-height: auto;
    gap: 40px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-visual {
    order: -1;
  }

  .hero-shape {
    width: 240px;
    height: 240px;
  }

  .hero-shape::before {
    font-size: 4rem;
  }

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

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

  .nav-links a:not(.btn) {
    display: none;
  }

  .footer-content {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .section-header h2 {
    font-size: 2rem;
  }

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