:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: var(--tw-bg); --panel: var(--tw-surface-raised); --line: var(--tw-control-border); --text: var(--tw-text);
  --muted: var(--tw-text-muted); --cyan: var(--tw-accent); --danger: var(--tw-danger);
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; color: var(--text); background: var(--bg); }
button, input, textarea { font: inherit; }
.login-shell { min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(390px, .72fr); }
.studio-hero { position: relative; min-height: 100vh; overflow: hidden; background: #02070b; }
.studio-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 57% center; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(2,8,13,.72) 0%, rgba(2,8,13,.12) 62%, rgba(2,8,13,.52) 100%), linear-gradient(0deg, rgba(2,8,13,.8) 0%, transparent 48%); }
.hero-copy { position: relative; z-index: 1; min-height: 100vh; display: flex; flex-direction: column; justify-content: space-between; gap: 48px; padding: clamp(28px, 4.5vw, 72px); }
.hero-story { position: relative; isolation: isolate; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 24px; }
.hero-story::before { content: ""; position: absolute; inset: -16px; z-index: -1; background: var(--tw-header); opacity: .86; }
.hero-message { min-width: 0; }
.hero-masthead { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 22px; }
.brand-stack { position: relative; isolation: isolate; display: grid; justify-items: start; max-width: 100%; min-width: 0; gap: 7px; }
.brand-stack::before { content: ""; position: absolute; inset: -8px; z-index: -1; background: var(--tw-header); opacity: .86; }
.tw-page-login .brand:focus-visible { outline-color: var(--tw-header-text) !important; }
.brand { width: 184px; height: 48px; display: block; overflow: hidden; border-radius: 4px; text-decoration: none; }
.brand img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center; }
.powered-by { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-left: 8px; color: var(--tw-header-text); font-size: .75rem; line-height: 1.5; font-weight: 600; }
.powered-by img { width: 73px; height: 15px; display: block; object-fit: contain; filter: invert(1); opacity: .68; }
.vietnam-flag-corner { display: grid; place-items: center; margin-inline-start: auto; border: 1px solid rgba(255,255,255,.2); border-radius: 10px; padding: 11px; background: rgba(2,12,18,.55); box-shadow: 0 10px 28px rgba(0,0,0,.24); backdrop-filter: blur(8px); }
.vietnam-flag { width: 90px; height: 60px; box-shadow: 0 3px 12px rgba(0,0,0,.34); }
.vietnam-signature { width: 214px; max-width: 100%; display: grid; justify-items: center; gap: 8px; border: 1px solid var(--tw-control-border); border-radius: var(--tw-radius-sm); padding: 8px; color: var(--tw-header-text); background: var(--tw-header); }
.vietnam-signature::after { content: attr(data-map-message); display: block; max-width: 100%; font-size: .75rem; font-weight: 600; line-height: 1.5; text-align: center; overflow-wrap: anywhere; }
.vietnam-map { width: 198px; max-width: 100%; height: auto; aspect-ratio: 82 / 104; overflow: visible; }
.vietnam-map .vietnam-land { fill: var(--tw-header-raised); stroke: var(--tw-header-text); stroke-width: .85; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.vietnam-map .coastal-islands { fill: var(--tw-header-text); }
.vietnam-map .archipelago { fill: #ffd54d; stroke: rgba(4,17,22,.9); stroke-width: .35; }
.eyebrow { margin: 0 0 10px; color: var(--cyan); font-size: .65rem; font-weight: 800; letter-spacing: .18em; }
h1 { max-width: 920px; margin: 0; font-size: clamp(2rem, 3.5vw, 3.8rem); line-height: 1.12; letter-spacing: -.035em; text-wrap: balance; overflow-wrap: anywhere; }
.promise { max-width: 570px; margin: 19px 0 0; color: #c0d2d8; font-size: clamp(.88rem, 1.15vw, 1.05rem); line-height: 1.5; }
.capabilities { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; }
.capabilities li { border: 1px solid var(--tw-control-border); border-radius: var(--tw-radius-sm); padding: 7px 11px; color: var(--tw-header-text); background: var(--tw-header); font-size: .75rem; line-height: 1.5; overflow-wrap: anywhere; }
.auth-panel { min-height: 100vh; display: grid; align-items: center; border-left: 1px solid var(--line); padding: clamp(26px, 4vw, 64px); background: radial-gradient(circle at 100% 0%, #153646 0, transparent 34%), var(--panel); }
.login-card { width: min(410px, 100%); margin: auto; }
h2 { margin: 0 0 26px; font-size: clamp(1.7rem, 3vw, 2.25rem); letter-spacing: -.04em; }
form { display: grid; gap: 8px; }
form[hidden], .status[hidden] { display: none; }
.tw-page-login .field-error { margin: 0; color: var(--tw-danger); font-size: .875rem; line-height: 1.5; overflow-wrap: anywhere; }
.tw-page-login .field-error[hidden] { display: none; }
.auth-tabs { margin-bottom: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 5px; border: 1px solid var(--line); border-radius: 9px; padding: 4px; background: #071119; }
.auth-tab { margin: 0; border: 1px solid transparent; border-radius: 6px; padding: 9px 8px; color: var(--muted); background: transparent; font-size: .76rem; cursor: pointer; }
.auth-tab.active { border-color: #315766; color: var(--text); background: #122733; }
label { margin-top: 8px; color: #b9cbd2; font-size: .78rem; font-weight: 700; }
input, textarea { width: 100%; border: 1px solid var(--line); border-radius: 7px; padding: 11px 12px; color: var(--text); background: #071119; }
textarea { resize: vertical; min-height: 72px; }
input:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
form > button { margin-top: 14px; border: 0; border-radius: 7px; padding: 11px 14px; color: #041116; background: var(--cyan); cursor: pointer; font-weight: 800; }
.federated-login { display: grid; gap: 10px; margin-top: 17px; text-align: center; }
.federated-login[hidden] { display: none; }
.federated-login > span { color: var(--muted); font-size: .75rem; }
.google-login { display: grid; place-items: center; min-height: 44px; border: 1px solid var(--tw-control-border); border-radius: var(--tw-radius-control); padding: 11px 14px; color: var(--tw-accent); background: var(--tw-surface-raised); text-decoration: none; font-size: .875rem; font-weight: 700; overflow-wrap: anywhere; }
.google-login:hover { border-color: var(--tw-accent); background: var(--tw-accent-soft); }
button:disabled { cursor: wait; opacity: .65; }
.status { margin: 15px 0 0; color: var(--muted); font-size: .76rem; line-height: 1.45; }
.status:empty { display: none; }
.status[data-tone="error"] { color: var(--danger); }
.status[data-tone="success"] { color: #ccefa0; }
.field-help { color: var(--muted); font-size: .68rem; line-height: 1.45; }
.field-row { display: grid; grid-template-columns: 1.15fr .85fr; gap: 9px; }
.field-row label { display: grid; gap: 8px; }
.consent { display: grid; grid-template-columns: 18px 1fr; align-items: start; gap: 8px; color: var(--muted); font-weight: 500; line-height: 1.4; }
.consent input { width: 16px; height: 16px; margin: 1px 0 0; }
.contact-trap { position: absolute; left: -10000px; width: 1px; height: 1px; opacity: 0; }
@media (max-width: 1100px) {
  .hero-story { grid-template-columns: minmax(0, 1fr) auto; gap: 16px; }
  .hero-message { display: contents; }
  .hero-message :is(h1, .promise) { grid-column: 1 / -1; }
  .hero-message .promise { margin-top: 0; }
  .capabilities { grid-column: 1; align-self: center; margin-top: 0; }
  .vietnam-signature { grid-column: 2; grid-row: 3; width: 126px; }
  .vietnam-map { width: 108px; height: 138px; }
}
@media (max-width: 900px) {
  .login-shell { grid-template-columns: minmax(0, 1fr) minmax(340px, .8fr); }
  .hero-copy { padding: 30px; }
  .vietnam-flag { width: 78px; height: 52px; }
  .brand { width: 158px; height: 42px; }
  .powered-by { margin-left: 6px; }
  .powered-by img { width: 65px; height: 14px; }
  h1 { font-size: clamp(2rem, 5vw, 3.35rem); }
}
@media (max-width: 700px) {
  .login-shell { display: block; }
  .studio-hero { min-height: 43vh; }
  .hero-copy { min-height: 43vh; padding: 22px; gap: 32px; }
  .hero-masthead { gap: 12px; }
  h1 { font-size: clamp(1.75rem, 7vw, 2.5rem); }
  .auth-panel { min-height: 57vh; border-top: 1px solid var(--line); border-left: 0; padding: 30px 22px 42px; }
}