:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-2: #eef3fb;
  --text: #13213d;
  --muted: #5c6b88;
  --line: #d9e2f2;
  --primary: #1746d1;
  --primary-dark: #0b1b4d;
  --accent: #2b7cff;
  --success: #0c8a52;
  --warning: #b66900;
  --danger: #c62828;
  --shadow: 0 18px 50px rgba(11, 27, 77, 0.10);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(43, 124, 255, 0.10), transparent 22%),
    linear-gradient(180deg, #f8fbff 0%, #f4f7fb 100%);
  line-height: 1.65;
}

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

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

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.narrow {
  max-width: 900px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}

.skip-link:focus {
  left: 16px;
  top: 16px;
  z-index: 1000;
  background: var(--primary-dark);
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(248, 251, 255, 0.88);
  border-bottom: 1px solid rgba(217, 226, 242, 0.8);
}

.nav-wrap {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-badge,
.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(23, 70, 209, 0.08);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.brand-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.top-nav a,
.jump-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  color: var(--text);
  font-weight: 600;
  transition: transform 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.top-nav a:hover,
.jump-links a:hover {
  transform: translateY(-1px);
  border-color: rgba(23, 70, 209, 0.35);
  color: var(--primary);
}

.jump-links a.active {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  border-color: transparent;
}

.hero {
  padding: 48px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 28px;
  align-items: center;
}

.hero-copy h1 {
  margin: 14px 0 16px;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.lead {
  margin: 0;
  font-size: 1.08rem;
  color: #2c3a57;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}

.hero-chips span {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 14px;
  font-weight: 600;
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 18px;
  border-radius: 14px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #2f6dff 100%);
  color: #fff;
  box-shadow: 0 16px 32px rgba(23, 70, 209, 0.22);
}

.btn-secondary {
  background: #fff;
  color: var(--primary-dark);
  border-color: var(--line);
}

.hero-card,
.notice-card,
.summary-step,
.step-card,
.faq-item,
.site-footer,
.section-muted .container,
.sticky-heading {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(217, 226, 242, 0.88);
  box-shadow: var(--shadow);
}

.hero-card {
  margin: 0;
  border-radius: 28px;
  padding: 18px;
}

.hero-card img {
  width: 100%;
  border-radius: 18px;
  background: #fff;
}

.hero-card figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  padding: 30px 0;
}

.section-tight {
  padding-top: 12px;
}

.section-muted {
  padding: 24px 0;
}

.section-muted .container {
  border-radius: 28px;
  padding: 24px;
}

.section-heading {
  margin-bottom: 24px;
}

.section-heading h2 {
  margin: 12px 0 8px;
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  line-height: 1.15;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.notice-grid,
.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.notice-card,
.summary-step {
  border-radius: var(--radius);
  padding: 22px;
}

.notice-card h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1.08rem;
}

.notice-card p,
.summary-step p {
  margin: 0;
  color: var(--muted);
}

.notice-card.warning {
  border-left: 5px solid rgba(182, 105, 0, 0.75);
}

.notice-card.info {
  border-left: 5px solid rgba(23, 70, 209, 0.55);
}

.summary-step {
  position: relative;
  overflow: hidden;
}

.summary-step span {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  font-weight: 800;
  margin-bottom: 14px;
}

.sticky-heading {
  position: sticky;
  top: 92px;
  z-index: 10;
  border-radius: 24px;
  padding: 18px;
  margin-bottom: 20px;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  align-items: flex-end;
}

.jump-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.jump-links a {
  width: 42px;
  min-width: 42px;
  padding: 0;
}

.steps-list {
  display: grid;
  gap: 22px;
}

.step-card {
  border-radius: 26px;
  padding: 22px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 22px;
  align-items: center;
  scroll-margin-top: 150px;
}

.step-card:nth-child(even) .step-copy {
  order: 2;
}

.step-card:nth-child(even) .step-image {
  order: 1;
}

.step-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.step-number {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  font-size: 1.15rem;
  font-weight: 800;
  box-shadow: 0 12px 24px rgba(23, 70, 209, 0.18);
}

.step-label {
  font-size: 0.92rem;
  color: var(--primary);
  font-weight: 700;
  background: rgba(23, 70, 209, 0.08);
  padding: 8px 12px;
  border-radius: 999px;
}

.step-copy h3 {
  margin: 0 0 10px;
  font-size: clamp(1.3rem, 2.8vw, 1.8rem);
  line-height: 1.15;
}

.step-copy p {
  margin: 0 0 12px;
  color: #314160;
}

.step-note {
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  font-size: 0.98rem;
  color: #40506e;
}

.step-note.danger {
  background: rgba(198, 40, 40, 0.08);
  border-color: rgba(198, 40, 40, 0.18);
  color: #8e1d1d;
}

.step-note.success {
  background: rgba(12, 138, 82, 0.10);
  border-color: rgba(12, 138, 82, 0.20);
  color: #0c6b43;
}

.step-image {
  margin: 0;
}

.step-image img {
  width: 100%;
  max-height: 720px;
  object-fit: contain;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 10px;
}

.mini-list {
  margin: 0;
  padding-left: 20px;
  color: #314160;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  border-radius: 20px;
  padding: 0;
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.04rem;
  padding: 18px 20px;
  position: relative;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 1.4rem;
  font-weight: 800;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-body {
  padding: 0 20px 18px;
  color: var(--muted);
}

.faq-body p {
  margin: 0;
}

.site-footer {
  margin: 28px auto 40px;
  width: min(calc(100% - 32px), var(--container));
  border-radius: 28px;
  padding: 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.site-footer h2 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.site-footer p {
  margin: 0 0 8px;
  color: var(--muted);
}

.footer-small {
  font-size: 0.95rem;
}

.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  box-shadow: 0 18px 30px rgba(23, 70, 209, 0.22);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.2s ease;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .hero-grid,
  .step-card,
  .footer-grid,
  .notice-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .sticky-heading {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .jump-links {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
    width: 100%;
  }

  .step-card:nth-child(even) .step-copy,
  .step-card:nth-child(even) .step-image {
    order: initial;
  }
}

@media (max-width: 760px) {
  .nav-wrap {
    align-items: flex-start;
    padding: 14px 0;
    flex-direction: column;
  }

  .hero {
    padding-top: 26px;
  }

  .hero-copy h1 {
    font-size: clamp(1.9rem, 10vw, 2.9rem);
  }

  .lead {
    font-size: 1rem;
  }

  .hero-card,
  .notice-card,
  .summary-step,
  .step-card,
  .site-footer,
  .section-muted .container,
  .sticky-heading {
    border-radius: 22px;
  }

  .step-card {
    padding: 18px;
    gap: 16px;
  }

  .step-number {
    width: 46px;
    height: 46px;
  }

  .step-label {
    font-size: 0.84rem;
  }

  .top-nav {
    width: 100%;
  }

  .top-nav a {
    flex: 1 1 auto;
  }
}


.lang-bar {
  display: grid;
  gap: 10px;
  padding-bottom: 14px;
}

.lang-bar-label {
  font-weight: 700;
  color: var(--muted);
}

.lang-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.lang-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  font-weight: 700;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.lang-links a:hover {
  transform: translateY(-1px);
  border-color: rgba(23, 70, 209, 0.35);
}

.lang-links a.active,
.lang-links a.lang-home {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  border-color: transparent;
}

.hub-hero {
  padding: 56px 0 28px;
}

.hub-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hub-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(217, 226, 242, 0.88);
  box-shadow: var(--shadow);
  border-radius: 24px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hub-card h3 {
  margin: 0;
  font-size: 1.2rem;
}

.hub-card p {
  margin: 0;
  color: var(--muted);
}

.hub-card .btn {
  margin-top: auto;
  width: fit-content;
}

.hub-note {
  margin-top: 20px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(217, 226, 242, 0.88);
  box-shadow: var(--shadow);
  color: var(--muted);
}

[dir="rtl"] body {
  font-family: Tahoma, Arial, sans-serif;
}

[dir="rtl"] .brand,
[dir="rtl"] .hero-copy,
[dir="rtl"] .section-heading,
[dir="rtl"] .step-copy,
[dir="rtl"] .faq-body,
[dir="rtl"] .site-footer {
  text-align: right;
}

[dir="rtl"] .step-meta,
[dir="rtl"] .hero-actions,
[dir="rtl"] .hero-chips,
[dir="rtl"] .lang-links,
[dir="rtl"] .jump-links,
[dir="rtl"] .top-nav {
  justify-content: flex-start;
}

[dir="rtl"] .faq-item summary::after {
  right: auto;
  left: 20px;
}

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

@media (max-width: 760px) {
  .lang-bar {
    padding-bottom: 12px;
  }

  .lang-links {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
  }

  .hub-grid {
    grid-template-columns: 1fr;
  }
}