:root {
  color-scheme: dark;
  --bg: #0f1116;
  --surface: #161a22;
  --surface-2: #1d2230;
  --border: #2a3142;
  --text: #f1f3f8;
  --muted: #b1b8c7;
  --placeholder: #8b92a3;
  --accent: #5b8cff;
  --accent-contrast: #0f1116;
  --danger: #d64545;
  --warning: #b7791f;
  --success: #2f855a;
  --radius-input: 12px;
  --radius-card: 16px;
  --radius-pill: 999px;
  --border-width: 1px;
  --control-height-sm: 40px;
  --control-height-md: 48px;
  --control-height-lg: 56px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.45);
  --glow-soft: 0 0 24px rgba(91, 140, 255, 0.2);
  --glow-strong: 0 0 32px rgba(91, 140, 255, 0.28);
  --glass-bg: rgba(22, 26, 34, 0.72);
  --glass-border: rgba(122, 140, 180, 0.25);
  --transition-fast: 180ms ease;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-7: 64px;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: radial-gradient(1200px 900px at 10% -10%, rgba(60, 90, 160, 0.22), transparent 60%),
    radial-gradient(900px 700px at 85% 10%, rgba(91, 140, 255, 0.16), transparent 60%),
    linear-gradient(180deg, #0c0f14 0%, #0f1116 55%, #0a0c12 100%);
  color: var(--text);
  line-height: 1.5;
  font-size: 16px;
  position: relative;
  min-height: 100%;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -20%;
  background:
    radial-gradient(520px 420px at 12% 25%, rgba(91, 140, 255, 0.18), transparent 60%),
    radial-gradient(520px 420px at 80% 15%, rgba(99, 173, 255, 0.12), transparent 60%),
    radial-gradient(640px 520px at 60% 85%, rgba(82, 110, 190, 0.14), transparent 60%);
  filter: blur(60px);
  opacity: 0.7;
  pointer-events: none;
  z-index: -2;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20px 30px, rgba(255, 255, 255, 0.18) 0, transparent 60%),
    radial-gradient(1px 1px at 80px 120px, rgba(255, 255, 255, 0.12) 0, transparent 60%),
    radial-gradient(1px 1px at 140px 60px, rgba(255, 255, 255, 0.16) 0, transparent 60%),
    url('/assets/images/bg/noise.png');
  background-size: 160px 160px, 240px 240px, 320px 320px, 260px 260px;
  background-repeat: repeat;
  opacity: 0.22;
  filter: blur(0.4px);
  pointer-events: none;
  z-index: -1;
  animation: stars-drift 32s linear infinite;
}

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

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid rgba(91, 140, 255, 0.55);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 30;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 8px 12px;
  border-radius: 10px;
}

.skip-link:focus-visible {
  top: 12px;
}

header {
  background: var(--surface);
  border-bottom: var(--border-width) solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  transition: box-shadow var(--transition-fast), backdrop-filter var(--transition-fast), background var(--transition-fast);
}

header.is-scrolled {
  box-shadow: 0 10px 24px rgba(8, 11, 18, 0.35);
  backdrop-filter: blur(8px);
  background: color-mix(in srgb, var(--surface) 90%, #000 10%);
}

.container {
  width: min(1160px, 92vw);
  margin: 0 auto;
}

.content-narrow {
  max-width: 760px;
}

.navbar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  min-height: 72px;
  padding: 0;
  gap: 20px;
}

.logo {
  font-weight: 700;
  font-size: 19px;
  white-space: nowrap;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 14px;
  flex-wrap: nowrap;
  align-items: center;
}

.nav {
  display: block;
  align-items: stretch;
  gap: 20px;
  flex: 1;
  justify-content: space-between;
  min-width: 0;
}

.nav-links a {
  font-weight: 500;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  min-height: var(--control-height-md);
  padding: 0 2px;
}

.nav-links a[aria-current="page"] {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: nowrap;
  white-space: nowrap;
}

.nav-actions > * {
  flex-shrink: 0;
}

.nav-cta,
.nav-primary {
  min-height: var(--control-height-md);
  padding: 0 14px;
}

.nav-primary {
  font-weight: 700;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 3;
  border-radius: var(--radius-input);
  box-shadow: none;
  outline: none;
}

.btn.nav-toggle {
  display: none;
}

.btn.nav-toggle:focus {
  outline: none;
  box-shadow: none;
}

.btn.nav-toggle:focus-visible {
  outline: 2px solid rgba(91, 140, 255, 0.55);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(91, 140, 255, 0.16);
}

.nav-toggle__icon {
  width: 18px;
  height: 2px;
  background: var(--text);
  position: relative;
  display: inline-block;
}

.nav-toggle__icon::before,
.nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--text);
  transition: transform var(--transition-fast);
}

.nav-toggle__icon::before {
  top: -6px;
}

.nav-toggle__icon::after {
  top: 6px;
}

.hero {
  padding: var(--space-7) 0 var(--space-4);
  position: relative;
}

.hero--with-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/bg/hero.webp') center/cover no-repeat;
  opacity: 0.24;
  pointer-events: none;
}

.hero--with-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 13, 20, 0.25), rgba(9, 12, 18, 0.8));
  pointer-events: none;
}

.hero--with-image > .container {
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.search {
  position: relative;
  min-width: 140px;
  width: clamp(150px, 16vw, 220px);
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  isolation: isolate;
}

.search input {
  width: 100%;
}

.search .form-field {
  width: 100%;
}

.autocomplete {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  width: 100%;
  max-height: 260px;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  background: color-mix(in srgb, var(--surface) 96%, #000 4%);
  border: var(--border-width) solid color-mix(in srgb, var(--border) 84%, var(--accent) 16%);
  border-radius: var(--radius-input);
  box-shadow: 0 10px 22px rgba(8, 12, 24, 0.28);
  display: grid;
  gap: 4px;
  padding: 8px;
  z-index: 12;
}

.autocomplete::-webkit-scrollbar {
  width: 8px;
}

.autocomplete::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--accent) 38%, #6e7686 62%);
  border-radius: 999px;
}

.autocomplete-item {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text);
  line-height: 1.35;
}

.autocomplete-item:hover,
.autocomplete-item.active,
.autocomplete-item[aria-selected="true"] {
  background: color-mix(in srgb, var(--surface-2) 72%, var(--accent) 28%);
  text-decoration: none;
}

.autocomplete-item.empty {
  color: var(--muted);
  cursor: default;
}

.card {
  background: var(--surface);
  border: var(--border-width) solid var(--border);
  border-radius: var(--radius-card);
  padding: var(--space-3);
  box-shadow: var(--shadow-sm);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.search-card {
  display: grid;
  gap: 16px;
}

.card.glass {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(16px);
}

@media (hover: hover) {
  .card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.45);
  }

  .card.glass:hover {
    box-shadow: 0 18px 38px rgba(0, 0, 0, 0.4), 0 0 24px rgba(91, 140, 255, 0.16);
  }
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.badge.info {
  background: rgba(59, 110, 242, 0.12);
  color: var(--accent);
}

.badge.success {
  background: rgba(47, 133, 90, 0.12);
  color: var(--success);
}

.badge.warning {
  background: rgba(183, 121, 31, 0.12);
  color: var(--warning);
}

.cta,
.btn {
  position: relative;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.cta::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: var(--glow-soft);
  opacity: 0;
  transition: opacity 180ms ease;
  pointer-events: none;
}

@media (hover: hover) {
  .cta:not(.secondary):hover::after,
  .cta:not(.secondary):focus-visible::after {
    opacity: 1;
  }
}

.hero-form {
  box-shadow: 0 0 0 1px rgba(91, 140, 255, 0.2), 0 0 26px rgba(91, 140, 255, 0.12);
}

.section {
  padding: var(--space-6) 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
}

.chip.active {
  border-color: var(--accent);
  color: var(--accent);
}

.section h2 {
  margin-top: 0;
}

.grid-3 {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border-radius: var(--radius-input);
  background: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
  border: 1px solid transparent;
  min-height: var(--control-height-md);
  line-height: 1.2;
}

.cta.secondary {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
}

.cta:hover {
  background: color-mix(in srgb, var(--accent) 88%, #000);
}

.cta.secondary:hover {
  background: color-mix(in srgb, var(--surface-2) 80%, var(--accent) 20%);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border-radius: var(--radius-input);
  border: var(--border-width) solid var(--border);
  background: var(--surface);
  color: var(--text);
  min-height: var(--control-height-md);
  font-weight: 600;
  line-height: 1.2;
}

.btn.primary {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: transparent;
}

.btn.ghost {
  background: transparent;
}

.btn.link {
  border: none;
  background: transparent;
  color: var(--accent);
  padding: 8px 0;
}

.btn.danger {
  background: var(--danger);
  color: #fff;
  border-color: transparent;
}

form {
  display: grid;
  gap: 16px;
}

form button {
  margin-top: 8px;
}

.form-actions {
  margin-top: 24px;
}

input, select, textarea {
  padding: 0 16px;
  border-radius: var(--radius-input);
  border: var(--border-width) solid var(--border);
  font: inherit;
  background: var(--surface);
  color: var(--text);
  min-height: var(--control-height-md);
  line-height: 1.2;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

input::placeholder,
textarea::placeholder {
  color: var(--placeholder);
}

textarea {
  min-height: 120px;
  padding: 12px 16px;
  resize: vertical;
  line-height: 1.5;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(91, 140, 255, 0.6);
  box-shadow: 0 0 0 3px rgba(91, 140, 255, 0.2);
}

.form-field {
  display: grid;
  gap: 8px;
  font-weight: 500;
}

.form-field--header {
  gap: 0;
  font-weight: 400;
}

.form-field--header .helper {
  min-height: 0;
}

.form-field .helper {
  min-height: 20px;
  font-size: 13px;
  color: var(--muted);
}

.form-check {
  display: grid;
  grid-template-columns: 20px 1fr;
  align-items: start;
  gap: 12px;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  min-height: auto;
  width: 18px;
  height: 18px;
  margin-top: 3px;
}

.form-check .helper {
  grid-column: 2 / -1;
}

.form-check .check-label {
  line-height: 1.3;
}

.form-check .check-label a {
  display: inline;
}

.form-status {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.form-status.is-success {
  color: var(--success);
}

.form-status.is-error {
  color: var(--danger);
}

.form-stack input,
.form-stack select,
.form-stack textarea,
.form-stack .cta,
.form-stack .btn {
  width: 100%;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.modal.open {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 17, 22, 0.4);
}

.modal-content {
  position: relative;
  width: min(720px, 92vw);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  box-shadow: var(--shadow-md);
  z-index: 1;
  backdrop-filter: blur(16px);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.wizard {
  display: grid;
  gap: 24px;
  margin-top: 16px;
}

.wizard-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.wizard-step {
  display: none;
}

.wizard-step.active {
  display: block;
}

.wizard-options {
  display: grid;
  gap: 12px;
}

.wizard-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.toc {
  position: sticky;
  top: 90px;
  align-self: start;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  background: var(--surface);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}

.tldr {
  padding-left: 18px;
}

footer {
  padding: 30px 0 50px;
  color: var(--muted);
}

.footer-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  display: grid;
  gap: 6px;
}

.footer-note {
  margin-top: 20px;
}

.footer-response {
  font-size: 14px;
  color: var(--text);
}

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

.notice {
  background: color-mix(in srgb, var(--surface-2) 80%, #fff);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: var(--radius-input);
  color: var(--muted);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th,
.table td {
  border: 1px solid var(--border);
  padding: 10px;
  text-align: left;
}

.tag {
  display: inline-flex;
  padding: 4px 8px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--surface-2) 70%, var(--accent) 30%);
  color: var(--accent);
  font-size: 12px;
}

@media (max-width: 640px) {
  body::after {
    background-size: 220px 220px, 320px 320px, 440px 440px, 240px 240px;
    opacity: 0.16;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  body::after {
    animation: none;
  }
}

@keyframes stars-drift {
  from {
    background-position: 0 0, 0 0, 0 0, 0 0;
  }
  to {
    background-position: 80px 240px, -120px 200px, 140px -120px, 0 0;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(1160px, 94vw);
  }
}

@media (max-width: 992px) {
  .navbar {
    grid-template-columns: 1fr auto;
    row-gap: 10px;
  }

  .logo {
    font-size: 18px;
  }

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

  .nav {
    display: none;
    grid-column: 1 / -1;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding-bottom: 16px;
  }

  .nav.open {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
    gap: 12px;
    align-items: stretch;
  }

  .nav-actions {
    flex-direction: column;
    align-items: stretch;
    white-space: normal;
  }

  .search {
    min-width: 100%;
    width: 100%;
  }
}


.section--with-bg {
  position: relative;
}

.section--with-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/bg/section.webp') center/cover no-repeat;
  opacity: 0.12;
  pointer-events: none;
}

.section--with-bg > .container {
  position: relative;
  z-index: 1;
}

.card-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 12px;
}

.avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid color-mix(in srgb, var(--border) 70%, var(--accent) 30%);
  margin-bottom: 10px;
}

.header-contact-icons,
.footer-contact-icons,
.contact-cards {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.contact-icon-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 88%, #1e2d4f 12%);
  color: var(--text);
}

.contact-icon-link:hover {
  text-decoration: none;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border) 55%);
}

.contact-icon {
  width: 18px;
  height: 18px;
}


.header-contact-icons .contact-icon-link {
  min-height: 36px;
  padding: 0 10px;
}

.footer-contact-icons .contact-icon-link {
  background: color-mix(in srgb, var(--surface) 84%, #1a2846 16%);
}

.contact-cards {
  margin-top: 12px;
}

.contact-cards .contact-icon-link {
  min-height: 48px;
  padding: 0 14px;
  border-radius: 12px;
  font-weight: 600;
}

@media (max-width: 992px) {
  .header-contact-icons {
    justify-content: flex-start;
  }

  .contact-icon-link span {
    font-size: 14px;
  }
}


.hp-field{position:absolute;left:-9999px;opacity:0;pointer-events:none;height:0;width:0;}