/* Basic variables: centralized colors make later edits easier */
:root {
  --bg-color: #ffffff;
  --surface-color: #ffffff;
  --surface-soft: #f4f8ff;
  --text-color: #0f172a;
  --muted-text: #475569;
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --border-color: rgba(15, 23, 42, 0.08);
  --shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  --radius-large: 24px;
  --radius-medium: 16px;
  --container-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(calc(100% - 32px), var(--container-width));
  margin: 0 auto;
}

.section {
  padding: 88px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border-color);
}

.navbar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
}

.logo {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--muted-text);
  font-weight: 600;
  transition: color 0.2s ease;
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--surface-color);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text-color);
  border-radius: 999px;
}

.hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--border-color);
}

.hero-content {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  align-items: center;
}

.eyebrow,
.section-tag {
  margin: 0 0 12px;
  color: var(--primary-color);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  line-height: 1.08;
  max-width: 760px;
}

.hero-description {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--muted-text);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn:focus-visible,
.menu-toggle:focus-visible,
.nav-links a:focus-visible,
.form-group input:focus-visible,
.form-group textarea:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.2);
  outline-offset: 2px;
}

.hero-actions .btn {
  min-width: 156px;
  min-height: 54px;
  padding: 0 26px;
  font-size: 0.98rem;
}

.btn-primary {
  background: var(--primary-color);
  color: #ffffff;
  border: 1px solid var(--primary-color);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.22);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.26);
}

.btn-secondary {
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.04);
}

.btn-secondary:hover {
  background: #ffffff;
  border-color: rgba(37, 99, 235, 0.3);
  color: var(--primary-color);
  box-shadow: 0 12px 22px rgba(15, 23, 42, 0.08);
}

.hero-card,
.feature-card,
.contact-box,
.contact-form {
  background: #ffffff;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 28px;
  border-radius: var(--radius-large);
}

.feature-card {
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.18);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.1);
}

.status-badge {
  display: inline-flex;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--primary-color);
  font-size: 0.9rem;
  font-weight: 800;
}

.hero-card h2 {
  margin: 18px 0 10px;
  font-size: 1.6rem;
}

.hero-card p {
  margin: 0;
  color: var(--muted-text);
}

.hero-list {
  margin: 22px 0 0;
  padding-left: 20px;
  color: var(--text-color);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}

.section-heading h2,
.contact-text h2 {
  margin: 0 0 12px;
  font-size: clamp(1.9rem, 3vw, 2.8rem);
  line-height: 1.15;
}

.section-heading p,
.contact-text p,
.feature-card p,
.site-footer p {
  margin: 0;
  color: var(--muted-text);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feature-card {
  padding: 28px;
  border-radius: var(--radius-medium);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: #eff6ff;
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 18px;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.contact-box {
  border-radius: var(--radius-large);
  padding: 40px;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 28px;
}

.contact-details {
  display: grid;
  gap: 20px;
}

.contact-info {
  padding: 28px;
  border-radius: var(--radius-medium);
  background: #f8fbff;
  border: 1px solid rgba(37, 99, 235, 0.1);
}

.contact-info p {
  margin: 0 0 14px;
}

.contact-btn {
  margin-top: 10px;
}

.contact-form {
  padding: 28px;
  border-radius: var(--radius-medium);
}

.form-intro h3 {
  margin: 0 0 8px;
  font-size: 1.35rem;
}

.form-intro p {
  margin: 0 0 22px;
  color: var(--muted-text);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-color);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: #ffffff;
  color: var(--text-color);
  font: inherit;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.form-group input.input-error,
.form-group textarea.input-error {
  border-color: #dc2626;
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.08);
}

.form-error {
  min-height: 20px;
  margin: 8px 0 0;
  color: #dc2626;
  font-size: 0.92rem;
}

.form-success {
  min-height: 24px;
  margin: 16px 0 0;
  color: #15803d;
  font-weight: 600;
}

.form-submit {
  min-width: 148px;
}

.site-footer {
  padding: 28px 0 36px;
  background: #ffffff;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
}

/* Tablet and small laptop */
@media (max-width: 900px) {
  .hero-content,
  .contact-box,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 72px;
  }
}

/* Mobile layout */
@media (max-width: 768px) {
  .navbar {
    min-height: 72px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
  }

  .nav-links.show {
    display: flex;
  }

  .hero,
  .section {
    padding: 68px 0;
  }

  .hero-card,
  .feature-card,
  .contact-box,
  .contact-info,
  .contact-form {
    padding: 22px;
  }

  .hero h1 {
    font-size: 2.35rem;
  }

  .footer-content {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}