@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/SpaceGrotesk-latin.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
  unicode-range:
    U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212,
    U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/SpaceGrotesk-latin-ext.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
  unicode-range:
    U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304,
    U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB,
    U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/SpaceGrotesk-vietnamese.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
  unicode-range:
    U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1,
    U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329,
    U+1EA0-1EF9, U+20AB;
}
:root {
  color-scheme: dark;
  --bg: #0b0e11;
  --surface: #12171c;
  --surface-raised: #1b232b;
  --text: #f3f1ec;
  --muted: #aab2be;
  --accent: #86b9d8;
  --line: #303b45;
  --control-border: #63717e;
  --success: #a3d3b1;
  --danger: #ffb2ad;
  --warning: #dfc697;
  --font: "Space Grotesk", sans-serif;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-12: 6rem;
  --content: 1248px;
  --gutter: clamp(20px, 4.4vw, 72px);
  --header-height: 88px;
  --radius: 4px;
  --motion: 160ms;
  --panel: var(--surface);
  --border: var(--line);
  --ink: var(--text);
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-padding-top: 2rem;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
}
body::selection {
  background: var(--accent);
  color: var(--bg);
}
button,
input,
textarea,
select {
  font: inherit;
}
button,
a,
input,
textarea,
select,
summary {
  -webkit-tap-highlight-color: transparent;
}
button,
summary {
  cursor: pointer;
}
button {
  color: inherit;
}
a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}
a:hover {
  color: var(--text);
}
img,
video,
svg {
  max-width: 100%;
}
img {
  height: auto;
}
p {
  margin: 0 0 1.25rem;
}
h1,
h2,
h3,
h4 {
  color: var(--text);
  font-family: var(--font);
  font-weight: 500;
  line-height: 1.13;
  letter-spacing: -0.045em;
  margin: 0 0 1.3rem;
  text-wrap: balance;
}
h1 {
  font-size: clamp(2.6rem, 5.8vw, 5.6rem);
}
h2 {
  font-size: clamp(1.8rem, 3.1vw, 3rem);
}
h3 {
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  letter-spacing: -0.025em;
}
strong {
  font-weight: 600;
}
small,
.small {
  font-size: 0.83rem;
}
button:disabled,
input:disabled,
textarea:disabled,
select:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}
[hidden] {
  display: none !important;
}
.hidden {
  display: none;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  background: var(--text);
  color: var(--bg);
  padding: 12px 20px;
  transform: translateY(-160%);
}
.skip-link:focus {
  transform: translateY(0);
}
.site-header {
  position: relative;
  z-index: 40;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.site-header-inner {
  max-width: 1440px;
  margin: auto;
  padding: 0 var(--gutter);
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 48px);
}
.site-brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  width: 108px;
}
.site-brand img {
  display: block;
  width: 108px;
  height: 56px;
  object-fit: contain;
}
.site-nav {
  display: flex;
  gap: clamp(18px, 2.1vw, 32px);
  align-items: center;
  margin: 0 auto;
}
.site-nav a {
  position: relative;
  color: var(--muted);
  font-size: 0.91rem;
  text-decoration: none;
  padding: 30px 0;
  white-space: nowrap;
}
.site-nav a:hover,
.site-nav a[aria-current] {
  color: var(--text);
}
.site-nav a[aria-current]::after {
  content: "";
  position: absolute;
  bottom: 20px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
}
.site-account {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.86rem;
  white-space: nowrap;
}
.site-account > a {
  text-decoration: none;
  color: var(--text);
}
.site-account #signupLink {
  border: 1px solid var(--control-border);
  border-radius: var(--radius);
  padding: 8px 14px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.site-account-menu {
  position: relative;
}
.site-account-menu summary {
  list-style: none;
  min-height: 44px;
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--text);
}
.site-account-menu summary::after {
  content: "+";
  color: var(--accent);
}
.site-account-menu[open] summary::after {
  content: "−";
}
.site-account-menu summary::-webkit-details-marker {
  display: none;
}
.account-panel {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 220px;
  background: var(--surface);
  border: 1px solid var(--control-border);
  padding: 12px;
  display: grid;
  gap: 4px;
  box-shadow: 0 12px 30px #0005;
}
.account-panel a {
  padding: 9px 12px;
  text-decoration: none;
  color: var(--text);
  white-space: normal;
}
.account-panel a:hover {
  background: var(--surface-raised);
}
.site-menu-button {
  display: none;
  gap: 10px;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid var(--control-border);
  border-radius: var(--radius);
  padding: 8px 12px;
  background: transparent;
  font-size: 0.85rem;
}
.site-menu-button svg {
  width: 18px;
  height: 18px;
}
.site-footer {
  margin-top: var(--space-12);
  border-top: 1px solid var(--line);
  padding: var(--space-6) var(--gutter) var(--space-4);
  color: var(--muted);
  font-size: 0.84rem;
}
.site-footer-inner {
  max-width: var(--content);
  margin: auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-identity strong {
  display: block;
  font-size: 1.4rem;
  color: var(--text);
  letter-spacing: 0.14em;
  margin-bottom: 12px;
}
.footer-identity p {
  max-width: 32ch;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 12px 24px;
}
.footer-nav a {
  color: var(--muted);
  text-decoration: none;
}
.footer-nav a:hover {
  color: var(--text);
  text-decoration: underline;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
  font-size: 0.75rem;
}
.page-width {
  max-width: calc(var(--content) + var(--gutter) * 2);
  padding-inline: var(--gutter);
  margin-inline: auto;
}
.page-intro {
  padding-top: clamp(48px, 6vw, 88px);
  padding-bottom: 48px;
}
.eyebrow,
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  display: block;
  margin: 0 0 24px;
}
.lede {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.7;
  color: var(--muted);
  max-width: 62ch;
}
.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}
.section-heading h2 {
  margin: 0;
}
.section-heading a {
  font-size: 0.88rem;
  white-space: nowrap;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  font-size: 0.91rem;
  min-height: 44px;
}
.text-link::after {
  content: "↗";
}
.button,
.btn,
.gate-link,
.apply-btn,
.read-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 46px;
  padding: 11px 20px;
  font-weight: 500;
  font-size: 0.88rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
  line-height: 1.4;
  transition:
    background var(--motion),
    border-color var(--motion),
    color var(--motion);
}
.button:hover,
.btn:hover,
.gate-link:hover,
.apply-btn:hover,
.read-btn:hover {
  color: var(--bg);
  background: #b5d8ec;
  border-color: #b5d8ec;
}
.button.secondary,
.btn.secondary,
.btn.outline,
.btn:not(.primary).muted-button {
  color: var(--text);
  border-color: var(--control-border);
  background: transparent;
}
.button.secondary:hover,
.btn.secondary:hover,
.btn.outline:hover {
  background: var(--surface-raised);
  border-color: var(--accent);
}
.btn.small {
  font-size: 0.81rem;
  padding: 9px 14px;
  min-height: 44px;
}
.actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
textarea,
select {
  width: 100%;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--control-border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 12px 14px;
  min-height: 46px;
  line-height: 1.5;
}
input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 1;
}
textarea {
  resize: vertical;
  min-height: 120px;
}
input[type="checkbox"],
input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  flex-shrink: 0;
}
label,
.field-label,
.modal-label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--text);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.form-field {
  margin-bottom: 24px;
}
.helper,
.mini,
.muted {
  font-size: 0.84rem;
  color: var(--muted);
}
.status,
.modal-status {
  font-size: 0.87rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}
.status.bad,
.status.error,
.modal-status.error,
[data-state="error"] {
  color: var(--danger);
}
.status.good,
.status.success,
[data-state="success"] {
  color: var(--success);
}
.notice,
.policy-box,
.credential-policy {
  border-left: 2px solid var(--warning);
  background: var(--surface);
  padding: 20px 24px;
  font-size: 0.9rem;
  color: var(--text);
}
.notice strong {
  display: block;
  margin-bottom: 6px;
  color: var(--warning);
}
.empty,
.empty-state {
  padding: 48px 0;
  color: var(--muted);
  max-width: 64ch;
}
.empty h2,
.empty h3 {
  color: var(--text);
}
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: #000b;
  overflow-y: auto;
}
.modal.open,
.modal.show {
  display: flex;
}
.modal-inner,
.modal-panel {
  background: var(--surface);
  color: var(--text);
  width: min(100%, 700px);
  max-height: calc(100dvh - 48px);
  overflow-y: auto;
  padding: 32px;
  border: 1px solid var(--control-border);
  border-radius: 6px;
  box-shadow: 0 24px 90px #0008;
  overscroll-behavior: contain;
}
.modal-inner h3,
.modal-panel h3 {
  font-size: 1.7rem;
}
.modal-inner p,
.modal-panel p {
  color: var(--muted);
}
.modal-inner .modal-label {
  margin-top: 20px;
}
.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}
.modal-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.modal-actions > .status,
.modal-actions > .modal-status {
  flex: 1 1 180px;
}
.icon-btn {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border: 1px solid var(--control-border);
  background: transparent;
  border-radius: var(--radius);
  font-size: 1.3rem;
}
.chip,
.mode-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 13px;
  font-size: 0.82rem;
  line-height: 1.35;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--control-border);
  border-radius: 3px;
  cursor: pointer;
}
.chip:hover,
.mode-btn:hover {
  color: var(--text);
  border-color: var(--control-border);
}
.chip.active,
.mode-btn.active {
  color: var(--text);
  background: var(--surface-raised);
  border-color: var(--accent);
}
.chips,
.chip-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.section-rule {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}
@media (min-width: 1920px) {
  :root {
    --gutter: 72px;
  }
}
@media (max-width: 1100px) {
  :root {
    --header-height: 80px;
  }
  .site-header-inner {
    gap: 24px;
  }
  .site-brand,
  .site-brand img {
    width: 90px;
  }
  .site-nav {
    gap: 18px;
  }
  .site-account {
    gap: 12px;
  }
  .site-nav a {
    font-size: 0.84rem;
  }
  .site-account #signupLink {
    padding: 8px 10px;
  }
}
@media (max-width: 900px) {
  :root {
    --header-height: 76px;
  }
  .site-header-inner {
    flex-wrap: wrap;
    gap: 0;
    justify-content: space-between;
    padding-block: 10px;
  }
  .site-brand img {
    height: 54px;
  }
  .site-menu-button {
    display: inline-flex;
    margin-left: auto;
  }
  .site-nav {
    display: none;
    order: 3;
    flex: 1 0 100%;
    margin: 12px 0 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-top: 1px solid var(--line);
  }
  .site-nav.open {
    display: flex;
  }
  .site-nav a {
    font-size: 1rem;
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
  }
  .site-nav a[aria-current]::after {
    left: auto;
    right: 4px;
    bottom: 23px;
    width: 20px;
  }
  .site-account {
    display: none;
    order: 4;
    flex-basis: 100%;
    padding: 16px 0 8px;
    gap: 24px;
    white-space: normal;
  }
  .site-header.menu-open .site-account {
    display: flex;
  }
  .account-panel {
    left: 0;
    right: auto;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .footer-identity {
    grid-column: 1/-1;
  }
  .footer-identity p {
    max-width: 50ch;
  }
}
@media (max-width: 560px) {
  body {
    font-size: 16px;
  }
  .page-intro {
    padding-top: 40px;
    padding-bottom: 32px;
  }
  .page-intro h1 {
    font-size: 2.75rem;
  }
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  .form-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .site-footer {
    margin-top: 64px;
  }
  .footer-top {
    gap: 28px;
    margin-bottom: 32px;
  }
  .footer-nav {
    flex-direction: column;
    gap: 6px;
  }
  .footer-nav a {
    min-height: 40px;
    display: flex;
    align-items: center;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
  .modal {
    padding: 12px;
  }
  .modal-inner,
  .modal-panel {
    padding: 24px 20px;
    max-height: calc(100dvh - 24px);
  }
  .modal-actions {
    align-items: stretch;
  }
  .modal-actions .btns {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }
  .notice {
    padding: 18px;
  }
  .chip {
    min-height: 44px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}