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

:root {
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --background: #ffffff;
  --foreground: #0f1720;
  --surface: #f8fafb;
  --primary: #015461;
  --primary-foreground: #ffffff;
  --primary-soft: #e7f2f3;
  --muted-foreground: #5a6b73;
  --border: #e5e7eb;
  --border-soft: #d6e3e5;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-soft: 0 1px 2px rgba(15, 23, 32, 0.04);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--foreground);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv11", "ss01";
}

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

a:hover {
  text-decoration: underline;
}

.site-header {
  background: var(--background);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
}

.site-header-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.brand-logo img {
  width: 22px;
  height: 22px;
  border-radius: 4px;
}

.brand-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-subtitle {
  font-size: 12px;
  color: var(--muted-foreground);
}

.site-nav {
  display: flex;
  gap: 16px;
  font-size: 14px;
  font-weight: 500;
}

.site-nav a {
  color: var(--muted-foreground);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--primary);
  text-decoration: none;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.page-card {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-soft);
}

h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.lead {
  color: var(--muted-foreground);
  margin-bottom: 28px;
}

h2 {
  font-size: 18px;
  font-weight: 600;
  margin-top: 28px;
  margin-bottom: 10px;
}

p,
ul {
  margin-bottom: 14px;
  color: var(--foreground);
}

ul {
  padding-left: 20px;
}

li {
  margin-bottom: 6px;
}

code {
  font-size: 0.9em;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  padding: 1px 6px;
}

.muted {
  color: var(--muted-foreground);
  font-size: 14px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 8px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 14px;
  font-weight: 500;
  color: var(--foreground);
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font: inherit;
  color: var(--foreground);
  background: var(--background);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 20px;
  border: none;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: var(--primary-foreground);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: opacity 0.2s ease;
  text-decoration: none;
}

.btn:hover {
  opacity: 0.92;
  text-decoration: none;
}

.thankyou-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.site-footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px 32px;
  text-align: center;
  font-size: 13px;
  color: var(--muted-foreground);
}

@media (max-width: 640px) {
  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-card {
    padding: 24px 20px;
  }

  h1 {
    font-size: 24px;
  }
}