:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-alt: #eef3f8;
  --text: #112033;
  --muted: #5c6b7c;
  --line: #d9e2ec;
  --primary: #2f8fdb;
  --primary-dark: #1e5f96;
  --accent: #5fdfe3;
  --shadow: 0 14px 40px rgba(17, 32, 51, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1180px;
  --header-height: 76px;
}

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

html {
  scroll-behavior: smooth;
}

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

img {
  max-width: 100%;
  display: block;
}

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

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(217, 226, 236, 0.9);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.brand-logo {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  object-fit: cover;
  border: 1px solid var(--line);
  background: white;
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-text strong {
  font-size: 0.95rem;
  letter-spacing: 0.03em;
}

.brand-text span {
  font-size: 0.78rem;
  color: var(--muted);
}

.menu-toggle {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 0 11px;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.menu-toggle:hover {
  box-shadow: var(--shadow);
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 999px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.main-nav {
  position: absolute;
  top: calc(100% + 0.6rem);
  left: 0;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 0.6rem;
  display: grid;
  gap: 0.4rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.28s ease, transform 0.28s ease, visibility 0.28s ease;
}

.main-nav.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-nav a {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  font-weight: 500;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  background: var(--surface-alt);
}

.nav-cta {
  background: var(--primary);
  color: white;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: var(--primary-dark) !important;
}

.hero {
  padding: 3rem 0 2rem;
}

.hero-grid,
.contact-grid {
  display: grid;
  gap: 1.2rem;
}

.hero-copy,
.hero-card,
.card,
.contact-form,
.logo-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 1.6rem;
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--primary-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 6vw, 3.7rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

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

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.4rem 0 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--line);
}

.btn-full {
  width: 100%;
  border: none;
  cursor: pointer;
}

.hero-points {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.hero-card {
  padding: 1rem;
  display: grid;
  gap: 1rem;
  background:
    radial-gradient(circle at top right, rgba(95, 223, 227, 0.18), transparent 35%),
    radial-gradient(circle at bottom left, rgba(47, 143, 219, 0.12), transparent 30%),
    var(--surface);
}

.stat-card {
  padding: 1.1rem;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(217, 226, 236, 0.95);
}

.stat-number {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}

.stat-label {
  color: var(--muted);
}

.section {
  padding: 2.3rem 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(238,243,248,0.9), rgba(245,247,250,0.9));
  border-top: 1px solid rgba(217, 226, 236, 0.8);
  border-bottom: 1px solid rgba(217, 226, 236, 0.8);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 1.3rem;
}

.section-heading.left {
  margin-bottom: 1rem;
}

.section h2 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.card {
  padding: 1.4rem;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.08rem;
}

.logo-card {
  padding: 1.2rem;
  min-height: 100px;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--primary-dark);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.step-number {
  display: inline-flex;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  background: var(--surface-alt);
  color: var(--primary-dark);
  margin-bottom: 0.8rem;
}

.contact-notes {
  display: grid;
  gap: 0.85rem;
}

.contact-form {
  padding: 1.3rem;
}

.form-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: white;
  border-radius: 12px;
  padding: 0.9rem 1rem;
  font: inherit;
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(47, 143, 219, 0.12);
}

input.invalid,
textarea.invalid {
  border-color: #c13737;
  box-shadow: 0 0 0 4px rgba(193, 55, 55, 0.08);
}

.error-message {
  display: block;
  min-height: 1rem;
  color: #c13737;
  margin-top: 0.35rem;
}

.form-feedback {
  margin: 0.8rem 0 0;
  font-weight: 600;
  min-height: 1.2rem;
}

.site-footer {
  padding: 1.8rem 0 2.4rem;
  border-top: 1px solid rgba(217, 226, 236, 0.8);
}

.footer-inner {
  display: grid;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (min-width: 768px) {
  .hero {
    padding: 4.2rem 0 3rem;
  }

  .hero-grid,
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }

  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .footer-inner {
    grid-template-columns: 1.4fr 1fr;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
  }

  .main-nav a {
    padding: 0.75rem 1rem;
  }

  .hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1.4rem;
  }

  .cards-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .contact-grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 1.4rem;
  }
}