:root {
  --bg: #f4f8fb;
  --surface: #ffffff;
  --surface-2: #e9f2f8;
  --text: #13242f;
  --muted: #4b6474;
  --primary: #0a7ea4;
  --primary-dark: #075f7c;
  --accent: #1ca086;
  --line: #d7e5ef;
  --success: #0f8a57;
  --shadow: 0 20px 45px rgba(8, 50, 69, 0.11);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --max: 1140px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 0%, #d6ecf8 0%, rgba(214, 236, 248, 0) 50%),
    radial-gradient(circle at 90% 15%, #d9f7ef 0%, rgba(217, 247, 239, 0) 45%),
    var(--bg);
  line-height: 1.7;
}

a {
  color: var(--primary-dark);
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}

a:hover,
a:focus-visible {
  color: var(--primary);
}

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

.container {
  width: min(calc(100% - 2.2rem), var(--max));
  margin-inline: auto;
}

.topbar {
  background: #0e2d3a;
  color: #d3e6ef;
  font-size: 0.92rem;
}

.topbar .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 1.4rem;
  padding: 0.65rem 0;
}

.topbar a {
  color: #e9f7ff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(244, 248, 251, 0.88);
  border-bottom: 1px solid rgba(10, 126, 164, 0.12);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
  min-height: 76px;
}

.logo {
  font-family: "Spectral", Georgia, serif;
  font-size: 1.52rem;
  font-weight: 700;
  line-height: 1.1;
  color: #103443;
  text-decoration: none;
}

.logo span {
  color: var(--primary);
}

.nav-toggle {
  display: none;
  border: 0;
  background: var(--surface);
  color: var(--text);
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  box-shadow: 0 0 0 1px var(--line);
  font: inherit;
}

.main-nav ul {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
}

.main-nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 0.8rem;
  border-radius: 999px;
}

.main-nav a:hover,
.main-nav a:focus-visible,
.main-nav a.active {
  background: var(--surface-2);
  color: var(--primary-dark);
}

.btn,
button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  text-decoration: none;
  border: 0;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.01em;
  padding: 0.82rem 1.35rem;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, #0f86ad, #0a6f92);
  color: #fff;
  box-shadow: 0 14px 24px rgba(11, 103, 133, 0.25);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: linear-gradient(135deg, #0a6f92, #095b78);
  color: #fff;
}

.btn-secondary {
  background: #ecf8fb;
  color: var(--primary-dark);
  box-shadow: 0 0 0 1px #b3dbe9;
}

.hero {
  padding: 3.3rem 0 1.8rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.8rem;
  align-items: stretch;
}

.hero-copy {
  background: linear-gradient(160deg, #ffffff, #f3fbff);
  border: 1px solid #d8ecf5;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: clamp(1.3rem, 2.7vw, 2.1rem);
}

.breadcrumb {
  margin: 0 0 0.95rem;
  color: #537082;
  font-size: 0.92rem;
}

.hero h1,
.page-header h1 {
  font-family: "Spectral", Georgia, serif;
  line-height: 1.15;
  margin: 0 0 1rem;
  color: #0c3140;
}

.hero h1 {
  font-size: clamp(1.45rem, 2.9vw, 2.15rem);
}

.lead {
  font-size: clamp(1.04rem, 2vw, 1.15rem);
  color: #27475a;
  margin: 0 0 1.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.15rem;
}

.quick-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
}

.quick-stats .stat {
  background: #f3fafb;
  border: 1px solid #d5eced;
  border-radius: var(--radius-sm);
  padding: 0.74rem;
}

.quick-stats strong {
  display: block;
  font-size: 1.08rem;
  color: #0f5166;
}

.quick-stats span {
  font-size: 0.85rem;
  color: #4b6976;
}

.hero-visual {
  display: flex;
  align-items: stretch;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(180deg, #d8edf8, #eef8fd);
  border: 1px solid #cae2ef;
  box-shadow: var(--shadow);
  min-height: 560px;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  object-fit: cover;
  object-position: center center;
}

.section {
  padding: 1.85rem 0;
}

.section h2,
.section h3,
.page-header h2 {
  font-family: "Spectral", Georgia, serif;
  line-height: 1.2;
  color: #0f3849;
}

.section h2 {
  font-size: clamp(1.38rem, 2.8vw, 2rem);
  margin: 0 0 1rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

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

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

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  box-shadow: 0 8px 24px rgba(8, 50, 69, 0.07);
}

.card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.18rem;
}

.card p,
.section p,
.section li {
  color: #223e4f;
}

.list-clean {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.list-clean li {
  background: #f4fbff;
  border: 1px solid #d8ebf3;
  border-radius: 10px;
  padding: 0.62rem 0.75rem;
}

.offer-strip {
  background: linear-gradient(130deg, #e7f6fb, #f2fcf8);
  border: 1px solid #cce7ea;
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

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

.article-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 11px 26px rgba(8, 50, 69, 0.08);
}

.article-card img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-card .inner {
  padding: 1rem;
}

.article-card h3 {
  margin-top: 0;
  margin-bottom: 0.55rem;
}

.article-pager {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
}

.article-pager .btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.cta-block {
  background: linear-gradient(155deg, #0f7ca1, #0a5c78);
  color: #ebf8ff;
  border-radius: var(--radius-lg);
  padding: clamp(1.2rem, 2.8vw, 2.1rem);
  box-shadow: var(--shadow);
}

.cta-block h2 {
  color: #fff;
  margin-top: 0;
}

.cta-block p {
  color: #dcf3ff;
}

.faq details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
}

.faq details + details {
  margin-top: 0.6rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  color: #133848;
}

.faq p {
  margin: 0.55rem 0 0.2rem;
}

.page-header {
  padding: 2.5rem 0 1.25rem;
}

.page-header .card {
  padding: 1.15rem 1.25rem;
}

.meta-row {
  font-size: 0.95rem;
  color: #4f6a79;
  margin-bottom: 0.45rem;
}

table.info-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #cfe2ec;
}

table.info-table th,
table.info-table td {
  text-align: left;
  padding: 0.75rem 0.78rem;
  border-bottom: 1px solid #e0edf3;
  vertical-align: top;
}

table.info-table th {
  background: #edf7fc;
  color: #0f3d52;
}

.notice {
  border-left: 4px solid var(--accent);
  background: #ecfbf5;
  padding: 0.78rem 0.9rem;
  border-radius: 8px;
}

.site-footer {
  margin-top: 2rem;
  background: #0d2a38;
  color: #d4e6ef;
}

.site-footer a {
  color: #e7f6ff;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: #bceaff;
}

.site-footer .list-clean li {
  background: #123747;
  border-color: #205166;
}

.site-footer .list-clean a {
  color: #eff9ff;
}

.site-footer .container {
  padding: 1.5rem 0;
}

.footer-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.1fr 0.9fr 0.9fr;
}

.footer-note {
  font-size: 0.9rem;
  color: #bdd4df;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  position: fixed;
  top: 0.6rem;
  left: 0.6rem;
  width: auto;
  height: auto;
  z-index: 100;
  background: #fff;
  color: #000;
  padding: 0.5rem 0.7rem;
  border-radius: 8px;
}

@media (max-width: 980px) {
  .hero-inner,
  .grid-2,
  .grid-3,
  .article-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: 76px;
    right: 0;
    left: 0;
    background: #f8fcff;
    border-bottom: 1px solid var(--line);
    display: none;
    padding: 0.4rem 0.8rem 0.9rem;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
  }

  .main-nav a {
    border-radius: 10px;
  }

  .quick-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(calc(100% - 1.2rem), var(--max));
  }

  .hero {
    padding-top: 2.35rem;
  }
}
.form-grid {
  display: grid;
  gap: 0.8rem;
}

.form-grid label {
  font-weight: 700;
  color: #14384a;
  display: block;
  margin-bottom: 0.25rem;
}

.form-grid input,
.form-grid select,
.form-grid textarea {
  width: 100%;
  border: 1px solid #b9d5e5;
  border-radius: 10px;
  padding: 0.62rem 0.72rem;
  font: inherit;
  background: #fff;
  color: #0d2c3a;
}

.form-grid input:focus,
.form-grid select:focus,
.form-grid textarea:focus {
  outline: 2px solid #8fd2e9;
  outline-offset: 1px;
}

.form-grid textarea {
  min-height: 110px;
  resize: vertical;
}

.form-grid .check-row {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
}

.form-grid .check-row input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  margin-top: 0.12rem;
}

.field-hint {
  display: block;
  margin-top: 0.3rem;
  color: #3f6173;
  font-size: 0.88rem;
}

.status-box {
  border-radius: 10px;
  padding: 0.72rem 0.82rem;
  margin-bottom: 0.75rem;
}

.status-box.success {
  background: #e8faf1;
  border: 1px solid #c3ecd8;
  color: #0f5f3e;
}

.status-box.error {
  background: #fff1f1;
  border: 1px solid #ffd1d1;
  color: #8c1d1d;
}

.calc-result {
  margin-top: 0.9rem;
  background: #edf8fd;
  border: 1px solid #c9e4f2;
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
}

.calc-result strong {
  color: #0b5f7e;
}

.affiliate-section {
  padding-top: 1.2rem;
  padding-bottom: 1.2rem;
}

.affiliate-box {
  background: linear-gradient(160deg, #ffffff, #f2f9fd);
  border: 1px solid #cfe4f0;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 24px rgba(8, 50, 69, 0.08);
  padding: 1rem;
}

.affiliate-badge {
  margin: 0 0 0.45rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #24566f;
  font-weight: 800;
}

.affiliate-box h2 {
  margin: 0 0 0.45rem;
  font-family: "Spectral", Georgia, serif;
  line-height: 1.2;
  color: #0f3a4c;
  font-size: clamp(1.2rem, 2.3vw, 1.62rem);
}

.affiliate-box p {
  margin-top: 0;
  margin-bottom: 0.95rem;
  color: #264455;
}

.affiliate-banner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.72rem;
}

.affiliate-banner-link {
  display: block;
  padding: 0;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid #c7dfeb;
  background: #fff;
  transition: transform 0.16s ease, box-shadow 0.18s ease;
}

.affiliate-banner-link:hover,
.affiliate-banner-link:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 10px 18px rgba(10, 77, 102, 0.16);
}

.affiliate-banner-link img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: contain;
  object-position: center center;
}

.affiliate-links {
  margin-top: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
}

.affiliate-links a {
  text-decoration: none;
  font-weight: 700;
  color: #0a5f7d;
}

.affiliate-links a:hover,
.affiliate-links a:focus-visible {
  color: #0a7ea4;
}

.affiliate-section-footer .affiliate-box {
  border-color: #bcdbe8;
  background: linear-gradient(150deg, #f7fcff, #eef8ff);
}

@media (max-width: 980px) {
  .affiliate-banner-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 420px;
  }
}