:root {
  --bg: #f4f8fb;
  --surface: #ffffff;
  --ink: #102033;
  --muted: #4c6074;
  --line: #d8e1ea;
  --brand: #e67e22;
  --brand-dark: #b95f11;
  --accent: #0a5ea8;
  --radius: 14px;
  --shadow: 0 10px 24px rgba(16, 32, 51, 0.08);
  --maxw: 1120px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Trebuchet MS", sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f7fbff 0%, #f2f7fb 100%);
  line-height: 1.55;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.95rem;
}

.nav a {
  padding: 8px 10px;
  border-radius: 999px;
}

.nav a:hover,
.nav a.active {
  background: #eaf3fb;
  text-decoration: none;
}

.hero {
  background: linear-gradient(120deg, #f5b041 0%, #6dd5fa 100%);
  border-radius: 0 0 28px 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 26px;
  padding: 56px 20px;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
}

.hero p {
  margin: 0;
  font-size: 1.1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

main {
  padding: 34px 0 54px;
}

h2 {
  margin-top: 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--brand);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.btn:hover {
  background: var(--brand-dark);
  text-decoration: none;
}

.btn-outline {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

.btn-outline:hover {
  background: #f2f7fb;
}

.demo-bar {
  margin: 18px 0 26px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid #bfd2e5;
  background: #edf6ff;
  color: #0c3b68;
  font-size: 0.86rem;
}

.page-intro {
  margin-bottom: 22px;
}

form {
  display: grid;
  gap: 10px;
}

label {
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #bfd2e5;
  border-radius: 10px;
  font: inherit;
}

textarea {
  min-height: 96px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 20px 0 28px;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .header-row {
    align-items: flex-start;
    flex-direction: column;
    padding: 10px 0;
  }
}