:root {
  --primary: #00bcd4;
  --primary-light: #7fe7f2;
  --bg: #eefcff;
  --card: #ffffff;
  --text: #163640;
  --muted: #5e7b84;
  --border: #d8f4f8;
  --shadow: 0 10px 30px rgba(0, 120, 140, 0.10);
  --radius: 18px;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(to bottom, #f4feff, #eefcff);
  color: var(--text);
  line-height: 1.6;
}

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

a:hover {
  opacity: 0.85;
}

.container {
  width: min(92%, var(--max-width));
  margin: 0 auto;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
}

.brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text);
  font-weight: 600;
}

.hero {
  padding: 80px 0 60px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
}

.hero-card,
.info-card,
.feature-card,
.resource-card,
.qa-card,
.contact-card,
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 40px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  margin: 0 0 16px;
}

.hero p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.hero-visual {
  min-height: 340px;
  border-radius: 28px;
  background:
    radial-gradient(circle at top left, rgba(127,231,242,0.75), transparent 35%),
    radial-gradient(circle at bottom right, rgba(0,188,212,0.28), transparent 40%),
    linear-gradient(135deg, #ffffff, #dafaff);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.btn-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-secondary {
  background: #e8fbfe;
  color: var(--text);
  border: 1px solid var(--border);
}

.section {
  padding: 26px 0 54px;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 10px;
}

.section-subtitle {
  color: var(--muted);
  margin-bottom: 28px;
}

.grid-2,
.grid-3 {
  display: grid;
  gap: 22px;
}

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

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

.info-card,
.feature-card,
.resource-card,
.qa-card,
.contact-card,
.form-card {
  padding: 26px;
}

.feature-card h3,
.resource-card h3,
.qa-card h3,
.contact-card h3 {
  margin-top: 0;
}

.tag {
  display: inline-block;
  padding: 6px 12px;
  background: #e6fbff;
  color: #187689;
  border-radius: 999px;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.page-header {
  padding: 56px 0 24px;
}

.page-header h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4.5vw, 3rem);
}

.page-header p {
  color: var(--muted);
  max-width: 760px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

label {
  font-weight: 700;
  margin-bottom: 4px;
}

input,
textarea,
select {
  width: 100%;
  padding: 14px 14px;
  border: 1px solid #cceef4;
  border-radius: 14px;
  font-size: 1rem;
  background: #fcfeff;
  color: var(--text);
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(0, 188, 212, 0.18);
  border-color: var(--primary);
}

textarea {
  resize: vertical;
  min-height: 130px;
}

.search-box {
  margin-bottom: 22px;
}

.footer {
  margin-top: 60px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  text-align: center;
}

.note {
  font-size: 0.95rem;
  color: var(--muted);
}

.list-clean {
  padding-left: 18px;
}

.list-clean li {
  margin-bottom: 10px;
}

.highlight {
  color: var(--primary);
  font-weight: 700;
}

@media (max-width: 900px) {
  .hero-grid,
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .nav-inner {
    flex-direction: column;
    gap: 12px;
  }

  .hero {
    padding-top: 50px;
  }

  .hero-card {
    padding: 28px;
  }
}


.footer .container {
  width: min(92%, var(--max-width));
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  padding: 38px 0 24px;
}

.footer-col {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(216, 244, 248, 0.95);
  border-radius: 16px;
  padding: 20px 20px 18px;
}

.footer-col h4 {
  margin: 0 0 12px;
  font-size: 1rem;
  color: var(--text);
}

.footer-col p {
  margin: 0 0 10px;
  font-size: 0.96rem;
  line-height: 1.7;
  color: var(--muted);
}

.footer-col a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.footer-col a:hover {
  opacity: 0.85;
  text-decoration: underline;
}

.footer-note {
  font-size: 0.92rem;
  color: var(--muted);
}

.footer-bottom {
  padding: 18px 0 28px;
  border-top: 1px solid rgba(0, 188, 212, 0.12);
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.93rem;
  color: #6a8790;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 30px 0 18px;
  }

  .footer-col {
    padding: 18px;
  }

  .footer-bottom {
    padding: 16px 0 24px;
  }
}