/* Auth / landing — thống nhất token với cổng chat */
:root {
  --reg-ink: #0c2f2d;
  --reg-ink-soft: #64748b;
  --reg-paper: #f5f7f7;
  --reg-accent: #0f766e;
  --reg-accent-deep: #0a5c56;
  --reg-accent-soft: #e6f7f5;
  --reg-mint: #0d9488;
  --reg-line: rgba(15, 61, 59, 0.1);
  --reg-card: #ffffff;
  --reg-radius: .75rem;
  --reg-font-display: "Literata", "Times New Roman", serif;
  --reg-font-body: "Be Vietnam Pro", system-ui, sans-serif;
}

.reg-page *,
.reg-page *::before,
.reg-page *::after {
  box-sizing: border-box;
}

.reg-page {
  min-height: 100vh;
  font-family: var(--reg-font-body);
  color: var(--reg-ink);
  background: var(--reg-paper);
  -webkit-font-smoothing: antialiased;
}

.reg-page .page {
  background: transparent;
}

.reg-shell {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

.reg-shell--narrow {
  max-width: 440px;
}

.reg-brand {
  text-align: center;
  margin-bottom: 1.75rem;
}

.reg-brand__mark {
  width: 3rem;
  height: 3rem;
  margin: 0 auto .85rem;
  border-radius: .55rem;
  display: grid;
  place-items: center;
  background: var(--reg-accent);
  color: #fff;
  font-family: var(--reg-font-display);
  font-size: 1.35rem;
  font-weight: 700;
}

.reg-brand__name {
  font-family: var(--reg-font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--reg-ink);
  margin: 0;
}

.reg-brand__name span {
  color: var(--reg-accent);
}

.reg-brand__tag {
  margin: 0.55rem auto 0;
  color: var(--reg-ink-soft);
  font-size: 0.98rem;
  max-width: 28rem;
  line-height: 1.5;
}

.reg-panel {
  background: var(--reg-card);
  border: 1px solid var(--reg-line);
  border-radius: var(--reg-radius);
  box-shadow: none;
  overflow: hidden;
}

.reg-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--reg-line);
  background: var(--reg-accent-soft);
}

.reg-steps__item {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0.95rem 1rem;
  font: inherit;
  color: var(--reg-ink-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.reg-steps__item:hover {
  color: var(--reg-ink);
}

.reg-steps__item.is-active {
  color: var(--reg-ink);
  background: #fff;
  box-shadow: inset 0 -2px 0 var(--reg-accent);
  font-weight: 600;
}

.reg-steps__num {
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 999px;
  border: 1.5px solid currentColor;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
}

.reg-steps__item.is-active .reg-steps__num,
.reg-steps__item.is-done .reg-steps__num {
  background: var(--reg-accent);
  border-color: var(--reg-accent);
  color: #fff;
}

.reg-body {
  padding: 1.5rem 1.35rem 1.35rem;
}

@media (min-width: 640px) {
  .reg-body {
    padding: 1.75rem 1.85rem 1.6rem;
  }
}

.reg-pane[hidden] {
  display: none !important;
}

.reg-pane__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
}

.reg-pane__hint {
  margin: 0 0 1.25rem;
  color: var(--reg-ink-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.reg-grid {
  display: grid;
  gap: 0.95rem;
  width: 100%;
}

@media (min-width: 640px) {
  .reg-grid--2 {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.reg-field {
  min-width: 0;
  width: 100%;
}

.reg-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--reg-ink);
}

.reg-field label .req {
  color: #dc2626;
  margin-left: 0.15rem;
}

.reg-field input,
.reg-field select {
  display: block;
  width: 100%;
  max-width: 100%;
  border: 1px solid var(--reg-line);
  border-radius: .55rem;
  padding: 0.7rem 0.85rem;
  font: inherit;
  background: #fff;
  color: var(--reg-ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.reg-field input:focus,
.reg-field select:focus {
  outline: none;
  border-color: rgba(15, 118, 110, 0.55);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}

.reg-field .hint {
  margin-top: 0.3rem;
  font-size: 0.78rem;
  color: var(--reg-ink-soft);
}

.reg-blocks {
  display: grid;
  gap: 0.65rem;
}

@media (min-width: 560px) {
  .reg-blocks {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.reg-block {
  position: relative;
  margin: 0;
  cursor: pointer;
}

.reg-block input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.reg-block__face {
  display: flex;
  align-items: center;
  min-height: 3.1rem;
  border: 1.5px solid var(--reg-line);
  border-radius: .65rem;
  padding: 0.85rem 0.95rem;
  background: #fff;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.reg-block:hover .reg-block__face {
  border-color: rgba(15, 61, 59, 0.22);
}

.reg-block input:checked + .reg-block__face {
  border-color: var(--reg-accent);
  background: var(--reg-accent-soft);
  box-shadow: none;
}

.reg-block__name {
  font-weight: 650;
  font-size: 0.95rem;
  line-height: 1.35;
  color: var(--reg-ink);
}

.reg-extras {
  margin-top: 0.35rem;
  border-top: 1px dashed var(--reg-line);
  padding-top: 0.85rem;
}

.reg-extras summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--reg-ink-soft);
  list-style: none;
}

.reg-extras summary::-webkit-details-marker {
  display: none;
}

.reg-extras summary::after {
  content: " ▾";
  font-size: 0.75rem;
}

.reg-extras[open] summary::after {
  content: " ▴";
}

.reg-extras .reg-grid {
  margin-top: 0.85rem;
}

.reg-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.35rem;
  padding-top: 1rem;
  border-top: 1px solid var(--reg-line);
}

.reg-btn {
  appearance: none;
  border: 0;
  border-radius: .55rem;
  padding: 0.72rem 1.25rem;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  line-height: 1.25;
  text-decoration: none !important;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

a.reg-btn,
a.reg-btn:link,
a.reg-btn:visited,
a.reg-btn:hover,
a.reg-btn:active,
a.reg-btn:focus {
  text-decoration: none !important;
  color: inherit;
}

.reg-btn--primary {
  background: var(--reg-accent);
  color: #fff !important;
  box-shadow: none;
}

.reg-btn--primary:hover {
  background: var(--reg-accent-deep);
  color: #fff !important;
}

.reg-btn--ghost {
  background: #fff;
  color: var(--reg-ink-soft) !important;
  border: 1px solid var(--reg-line);
}

.reg-btn--ghost:hover {
  color: var(--reg-ink) !important;
  background: var(--reg-accent-soft);
  border-color: rgba(15, 118, 110, 0.28);
}

.reg-alert {
  margin: 0 0 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: .55rem;
  background: #fff1f0;
  color: #9b2c2c;
  font-size: 0.9rem;
  border: 1px solid rgba(155, 44, 44, 0.18);
}

.reg-foot {
  text-align: center;
  margin-top: 1.25rem;
  color: var(--reg-ink-soft);
  font-size: 0.92rem;
  line-height: 1.55;
}

.reg-foot a {
  color: var(--reg-accent-deep);
  font-weight: 650;
  text-decoration: none;
}

.reg-foot a:hover {
  text-decoration: underline;
}

/* Landing — public intro (no pricing) */
.land-page {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.land-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 12% -10%, rgba(15, 118, 110, 0.14), transparent 55%),
    radial-gradient(ellipse 55% 45% at 95% 8%, rgba(13, 148, 136, 0.1), transparent 50%),
    linear-gradient(180deg, #eef5f4 0%, var(--reg-paper) 42%, #e8efee 100%);
}

.land-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cpath d='M0 60h120M60 0v120' stroke='%230c2f2d' stroke-width='1' fill='none'/%3E%3C/svg%3E");
}

.land-top {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.15rem 1.35rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  animation: land-fade-up 0.55s ease both;
}

.land-top__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: inherit;
}

.land-top__mark {
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 0.45rem;
  display: grid;
  place-items: center;
  background: var(--reg-accent);
  color: #fff;
  font-family: var(--reg-font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.land-top__name {
  font-family: var(--reg-font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--reg-ink);
}

.land-top__name em {
  font-style: normal;
  color: var(--reg-accent);
}

.land-top__nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  font-size: 0.92rem;
}

.land-top__nav a {
  color: var(--reg-ink-soft);
  text-decoration: none;
  font-weight: 500;
}

.land-top__nav a:hover {
  color: var(--reg-ink);
}

.land-top__login {
  color: var(--reg-accent-deep) !important;
  font-weight: 650 !important;
}

.land-hero--bleed {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) 1.35rem 2.5rem;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .land-hero--bleed {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
    min-height: min(72vh, 560px);
  }
}

.land-hero__copy {
  animation: land-fade-up 0.7s ease 0.06s both;
}

.land-hero__brand {
  margin: 0 0 0.85rem;
  font-family: var(--reg-font-display);
  font-size: clamp(1.85rem, 4.5vw, 2.55rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--reg-ink);
}

.land-hero__brand span {
  color: var(--reg-accent);
}

.land-hero--bleed h1 {
  margin: 0;
  font-family: var(--reg-font-body);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.35;
  color: var(--reg-ink);
  max-width: 22em;
}

.land-hero__lede {
  margin: 0.95rem 0 0;
  max-width: 28rem;
  color: var(--reg-ink-soft);
  font-size: 1.02rem;
  line-height: 1.6;
}

.land-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.65rem;
}

.land-hero__visual {
  display: flex;
  justify-content: center;
  animation: land-fade-up 0.85s ease 0.14s both;
}

.land-doc {
  width: min(100%, 340px);
  background: linear-gradient(165deg, #fffefb 0%, #f7faf9 100%);
  border: 1px solid rgba(12, 47, 45, 0.1);
  border-radius: 0.35rem;
  padding: 1.75rem 1.6rem 2rem;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.8) inset,
    0 18px 40px -28px rgba(12, 47, 45, 0.35),
    8px 12px 0 -2px rgba(15, 118, 110, 0.06);
  position: relative;
  transform: rotate(-1.2deg);
  animation: land-doc-float 7s ease-in-out infinite;
}

.land-doc__qh {
  text-align: center;
  font-family: var(--reg-font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--reg-ink);
  line-height: 1.35;
}

.land-doc__tn {
  text-align: center;
  font-family: var(--reg-font-display);
  font-size: 0.68rem;
  font-style: italic;
  margin-top: 0.2rem;
  color: var(--reg-ink);
}

.land-doc__rule {
  width: 4.5rem;
  height: 1px;
  background: var(--reg-ink);
  margin: 0.45rem auto 1.1rem;
}

.land-doc__org {
  font-size: 0.72rem;
  font-weight: 650;
  color: var(--reg-ink);
  margin-bottom: 0.85rem;
}

.land-doc__title {
  text-align: center;
  font-family: var(--reg-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin: 0 0 1.1rem;
  color: var(--reg-accent-deep);
}

.land-doc__lines {
  display: grid;
  gap: 0.55rem;
}

.land-doc__lines span {
  display: block;
  height: 0.45rem;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(12, 47, 45, 0.12), rgba(12, 47, 45, 0.05) 70%, transparent);
}

.land-doc__lines span.short {
  width: 62%;
}

.land-doc__seal {
  position: absolute;
  right: 1.4rem;
  bottom: 1.35rem;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  border: 2px solid rgba(15, 118, 110, 0.35);
  background: radial-gradient(circle at 40% 35%, rgba(15, 118, 110, 0.12), transparent 55%);
  opacity: 0.85;
}

.land-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.75rem 1.35rem 1rem;
}

.land-section--muted {
  margin-top: 1.5rem;
  margin-bottom: 2rem;
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
  background: rgba(255, 255, 255, 0.55);
  border-block: 1px solid var(--reg-line);
  max-width: none;
  padding-inline: max(1.35rem, calc((100% - 1100px) / 2 + 1.35rem));
}

.land-section__head {
  margin-bottom: 1.75rem;
  max-width: 42rem;
  animation: land-fade-up 0.6s ease both;
}

.land-section__head--wide {
  max-width: min(52rem, 100%);
}

.land-section__head h2 {
  margin: 0;
  font-family: var(--reg-font-display);
  font-size: clamp(1.35rem, 2.8vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--reg-ink);
  line-height: 1.25;
}

.land-section__head p,
.land-lede-pretty {
  margin: 0.55rem 0 0;
  color: var(--reg-ink-soft);
  font-size: 0.98rem;
  line-height: 1.55;
  text-wrap: pretty;
  max-width: none;
}

@media (min-width: 900px) {
  .land-lede-pretty {
    white-space: nowrap;
  }
}

.land-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
  counter-reset: none;
}

@media (min-width: 800px) {
  .land-flow:not(.land-flow--6) {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
    position: relative;
  }

  .land-flow:not(.land-flow--6)::before {
    content: "";
    position: absolute;
    top: 1.15rem;
    left: 8%;
    right: 8%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--reg-line), transparent);
    z-index: 0;
  }

  .land-flow--6 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.75rem 1.5rem;
  }
}

@media (min-width: 1100px) {
  .land-flow--6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

.land-flow__item {
  display: grid;
  gap: 0.55rem;
  position: relative;
  z-index: 1;
  animation: land-fade-up 0.65s ease both;
  align-content: start;
}

.land-flow__item:nth-child(2) { animation-delay: 0.06s; }
.land-flow__item:nth-child(3) { animation-delay: 0.12s; }
.land-flow__item:nth-child(4) { animation-delay: 0.16s; }
.land-flow__item:nth-child(5) { animation-delay: 0.2s; }
.land-flow__item:nth-child(6) { animation-delay: 0.24s; }

.land-flow__top {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.15rem;
}

.land-flow__icon {
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 0.55rem;
  display: grid;
  place-items: center;
  background: var(--reg-accent-soft);
  color: var(--reg-accent);
  flex-shrink: 0;
}

.land-flow__icon svg {
  width: 1.15rem;
  height: 1.15rem;
}

.land-flow__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.15rem;
  height: 2.15rem;
  padding: 0 0.45rem;
  border-radius: 999px;
  background: var(--reg-accent);
  color: #fff;
  font-family: var(--reg-font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: 0 6px 14px -8px rgba(15, 118, 110, 0.55);
}

.land-flow__item strong {
  display: block;
  font-size: 1.02rem;
  color: var(--reg-ink);
  margin: 0;
  line-height: 1.3;
}

.land-flow__item p {
  margin: 0;
  color: var(--reg-ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
}

.land-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 800px) {
  .land-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2.25rem;
  }
}

.land-points li {
  display: grid;
  gap: 0.45rem;
  padding-top: 0.85rem;
  border-top: 2px solid var(--reg-accent);
  animation: land-fade-up 0.65s ease both;
  align-content: start;
}

.land-points li:nth-child(2) {
  animation-delay: 0.08s;
}

.land-points li:nth-child(3) {
  animation-delay: 0.16s;
}

.land-points__icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.55rem;
  display: grid;
  place-items: center;
  background: var(--reg-accent-soft);
  color: var(--reg-accent);
  margin-bottom: 0.15rem;
}

.land-points__icon svg {
  width: 1.2rem;
  height: 1.2rem;
}

.land-points strong {
  font-size: 1.02rem;
  color: var(--reg-ink);
}

.land-points span {
  color: var(--reg-ink-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.land-foot {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.35rem 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--reg-line);
  color: var(--reg-ink-soft);
  font-size: 0.88rem;
}

.land-foot p {
  margin: 0;
}

.land-foot strong {
  color: var(--reg-ink);
  font-weight: 650;
}

.land-foot a {
  color: var(--reg-accent-deep);
  text-decoration: none;
  font-weight: 550;
}

.land-foot a:hover {
  text-decoration: underline;
}

/* Legacy pricing cards (kept for /pricing redirect pages if reused) */
.land-grid {
  display: grid;
  gap: 0.85rem;
  margin-top: 2rem;
}

@media (min-width: 720px) {
  .land-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.land-card {
  background: var(--reg-card);
  border: 1px solid var(--reg-line);
  border-radius: var(--reg-radius);
  padding: 1.25rem 1.15rem;
}

.land-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 650;
}

.land-card .price {
  font-family: var(--reg-font-display);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--reg-ink);
}

.land-card .meta {
  color: var(--reg-ink-soft);
  font-size: 0.9rem;
  margin-top: 0.35rem;
  line-height: 1.45;
}

@keyframes land-fade-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes land-doc-float {
  0%,
  100% {
    transform: rotate(-1.2deg) translateY(0);
  }
  50% {
    transform: rotate(-0.6deg) translateY(-6px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .land-top,
  .land-hero__copy,
  .land-hero__visual,
  .land-section__head,
  .land-flow__item,
  .land-points li {
    animation: none !important;
  }

  .land-doc {
    animation: none !important;
  }
}

@media (max-width: 640px) {
  .land-top__nav a:not(.land-top__login) {
    display: none;
  }
}

.reg-debug {
  margin-top: 1rem;
  padding: 0.85rem;
  border-radius: .55rem;
  background: var(--reg-accent-soft);
  border: 1px solid rgba(15, 118, 110, 0.22);
  font-size: 0.88rem;
  word-break: break-all;
}

.reg-debug a {
  color: var(--reg-accent-deep);
  font-weight: 650;
}

.reg-oauth {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  margin: .75rem 0 1rem;
}
.reg-oauth__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .65rem .9rem;
  border-radius: .55rem;
  border: 1px solid var(--reg-line);
  background: #fff;
  color: var(--reg-ink) !important;
  text-decoration: none !important;
  font-weight: 600;
  font-size: .9rem;
  transition: background .12s ease, border-color .12s ease;
}
.reg-oauth__btn:hover {
  background: var(--reg-accent-soft);
  border-color: rgba(15, 118, 110, 0.35);
}
.reg-oauth__btn--facebook { color: #1877f2 !important; }
.reg-oauth__btn--facebook:hover { border-color: #1877f2; background: #f0f5ff; }
.reg-oauth__btn--zalo { color: #0068ff !important; }
.reg-oauth__btn--zalo:hover { border-color: #0068ff; background: #eef5ff; }
.reg-oauth__icon {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  font-weight: 700;
  font-size: .85rem;
  background: var(--reg-accent-soft);
  color: var(--reg-accent-deep);
}
.reg-oauth__btn--facebook .reg-oauth__icon { background: #e7f0ff; color: #1877f2; }
.reg-oauth__btn--zalo .reg-oauth__icon { background: #e8f1ff; color: #0068ff; }
.reg-oauth__sep {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin: 0 0 1rem;
  color: var(--reg-ink-soft);
  font-size: .78rem;
}
.reg-oauth__sep::before,
.reg-oauth__sep::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--reg-line);
}
.reg-oauth__sep span { white-space: nowrap; }

/* Tom Select — tìm nhanh tỉnh/xã (kiểu Select2) */
.reg-field .ts-wrapper {
  width: 100%;
}
.reg-field .ts-control {
  border: 1px solid var(--reg-line);
  border-radius: .55rem;
  padding: 0.45rem 0.7rem;
  min-height: 2.75rem;
  font: inherit;
  background: #fff;
  color: var(--reg-ink);
  box-shadow: none;
}
.reg-field .ts-wrapper.focus .ts-control {
  border-color: rgba(15, 118, 110, 0.55);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}
.reg-field .ts-dropdown {
  border: 1px solid var(--reg-line);
  border-radius: .55rem;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.12);
  font: inherit;
  z-index: 40;
}
.reg-field .ts-dropdown .active {
  background: var(--reg-accent-soft);
  color: var(--reg-accent-deep);
}
.reg-field .ts-dropdown .no-results {
  padding: 0.65rem 0.85rem;
  color: var(--reg-ink-soft);
  font-size: 0.85rem;
}