/* YK 25 - Hover expanding login, YKhoaAI branded. */
.login-page.login-page-v2 {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
  place-items: center;
  overflow: hidden;
  padding: clamp(24px, 5vw, 64px);
  background:
    radial-gradient(circle at 18% 16%, rgba(20, 184, 166, .20), transparent 28%),
    radial-gradient(circle at 84% 80%, rgba(34, 211, 238, .16), transparent 30%),
    linear-gradient(145deg, #071316 0%, #0a171a 45%, #081114 100%);
}

.login-page.login-page-v2::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: .28;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 36px 36px;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 20%, #000 80%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 20%, #000 80%, transparent);
}

.login-page.login-page-v2::after {
  content: '';
  position: absolute;
  width: min(60vw, 760px);
  aspect-ratio: 1;
  border-radius: 50%;
  z-index: -1;
  filter: blur(90px);
  opacity: .22;
  background: linear-gradient(135deg, #14b8a6, #22d3ee);
  animation: yk25Ambient 8s ease-in-out infinite alternate;
}

.login-page-v2 .login-hero { display: none; }

.login-page-v2 .login-side {
  width: min(100%, 520px);
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
}

.login-stage-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #e8ffff;
  user-select: none;
  transition: opacity .25s ease, transform .35s ease;
}
.login-stage-brand .login-stage-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  color: #001416;
  background: linear-gradient(135deg, #2dd4bf, #22d3ee);
  box-shadow: 0 0 0 1px rgba(255,255,255,.15), 0 0 30px rgba(34,211,238,.25);
  font-size: 27px;
  font-weight: 900;
}
.login-stage-brand strong,
.login-stage-brand small { display: block; }
.login-stage-brand strong { font-size: 25px; letter-spacing: -.03em; }
.login-stage-brand small { margin-top: 2px; color: #7ca7ad; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }

.login-page-v2 .login-card.login-expand-card {
  --expand-width: 430px;
  position: relative;
  isolation: isolate;
  width: min(292px, calc(100vw - 40px));
  max-width: calc(100vw - 40px);
  padding: 7px;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 20px;
  background:
    linear-gradient(#0c171b, #0c171b) padding-box,
    linear-gradient(115deg, #22d3ee 0%, #22d3ee 14%, transparent 26%, transparent 72%, #2dd4bf 86%, #2dd4bf 100%) border-box;
  box-shadow:
    0 22px 70px rgba(0, 0, 0, .48),
    0 0 34px rgba(13, 148, 136, .10),
    inset 0 1px rgba(255,255,255,.04);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition:
    width .46s cubic-bezier(.2,.8,.2,1),
    border-radius .36s ease,
    box-shadow .36s ease,
    transform .36s ease;
}
.login-expand-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  pointer-events: none;
  opacity: .65;
  background: linear-gradient(90deg, transparent 0 14%, rgba(34,211,238,.7) 26%, transparent 40% 62%, rgba(45,212,191,.72) 76%, transparent 90%);
  background-size: 220% 100%;
  animation: yk25BorderFlow 4.6s linear infinite;
  filter: blur(7px);
}

.login-trigger {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 50px;
  border: 0;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #d9fbfb;
  background: linear-gradient(180deg, #111f24, #0a1418);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.045), 0 8px 24px rgba(0,0,0,.32);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .25em;
  text-transform: uppercase;
  cursor: pointer;
}
.login-trigger::before,
.login-trigger::after {
  content: '';
  position: absolute;
  width: 45px;
  height: 2px;
  border-radius: 999px;
  opacity: .95;
  transition: width .35s ease, transform .35s ease;
}
.login-trigger::before { left: 10px; top: 6px; background: #2dd4bf; }
.login-trigger::after { right: 10px; bottom: 6px; background: #22d3ee; }
.login-trigger-mark {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  color: #031315;
  background: linear-gradient(135deg, #2dd4bf, #22d3ee);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0;
  box-shadow: 0 0 18px rgba(34,211,238,.30);
}
.login-trigger-lock {
  color: #2dd4bf;
  font-size: 12px;
  letter-spacing: 0;
  transition: transform .35s ease;
}

.login-expand-body {
  position: relative;
  z-index: 1;
  max-height: 0;
  padding: 0 20px;
  opacity: 0;
  overflow: hidden;
  transform: translateY(-14px) scale(.985);
  transform-origin: top center;
  pointer-events: none;
  transition:
    max-height .58s cubic-bezier(.2,.75,.2,1),
    opacity .25s ease,
    transform .45s cubic-bezier(.2,.75,.2,1),
    padding .45s ease;
}

.login-expand-card.is-open,
.login-expand-card:focus-within {
  width: min(var(--expand-width), calc(100vw - 40px));
  border-radius: 25px;
  box-shadow:
    0 30px 90px rgba(0,0,0,.52),
    0 0 42px rgba(34,211,238,.12),
    0 0 54px rgba(45,212,191,.08),
    inset 0 1px rgba(255,255,255,.05);
}
.login-expand-card.is-open .login-expand-body,
.login-expand-card:focus-within .login-expand-body {
  max-height: 680px;
  padding: 22px 20px 20px;
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.login-expand-card.is-open .login-trigger::before,
.login-expand-card:focus-within .login-trigger::before,
.login-expand-card.is-open .login-trigger::after,
.login-expand-card:focus-within .login-trigger::after { width: 70px; }
.login-expand-card.is-open .login-trigger-lock,
.login-expand-card:focus-within .login-trigger-lock { transform: translateY(-1px) rotate(-8deg); }

@media (hover: hover) and (pointer: fine) {
  .login-expand-card:hover {
    width: min(var(--expand-width), calc(100vw - 40px));
    border-radius: 25px;
    transform: translateY(-3px);
    box-shadow:
      0 34px 96px rgba(0,0,0,.55),
      0 0 44px rgba(34,211,238,.14),
      0 0 58px rgba(45,212,191,.09),
      inset 0 1px rgba(255,255,255,.05);
  }
  .login-expand-card:hover .login-expand-body {
    max-height: 680px;
    padding: 22px 20px 20px;
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }
  .login-expand-card:hover .login-trigger::before,
  .login-expand-card:hover .login-trigger::after { width: 70px; }
}

.login-page-v2 .login-expand-body > .brand { display: none; }
.login-page-v2 .login-card h2 {
  margin: 2px 0 7px;
  color: #efffff;
  font-size: 27px;
  letter-spacing: -.035em;
}
.login-page-v2 .login-card > .login-expand-body > p {
  margin: 0 0 20px;
  color: #789aa0;
  font-size: 12px;
  line-height: 1.55;
}
.login-page-v2 .field { gap: 7px; margin-bottom: 14px; }
.login-page-v2 .field label { color: #b8d2d4; font-size: 11px; letter-spacing: .02em; }
.login-page-v2 .field input {
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid #1f343a;
  border-radius: 13px;
  outline: 0;
  color: #e8ffff;
  background: #081115;
  caret-color: #2dd4bf;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.login-page-v2 .field input::placeholder { color: #526a70; }
.login-page-v2 .field input:focus {
  border-color: #2dd4bf;
  background: #0a1519;
  box-shadow: 0 0 0 3px rgba(45,212,191,.10), 0 0 24px rgba(34,211,238,.06);
}
.login-page-v2 .remember {
  margin: 2px 0 17px;
  color: #86a7ab;
  font-size: 11px;
}
.login-page-v2 .remember input { accent-color: #14b8a6; }
.login-page-v2 .login-card .primary-btn {
  min-height: 48px;
  border-radius: 13px;
  background: linear-gradient(100deg, #2dd4bf, #22d3ee);
  color: #042024;
  font-weight: 900;
  box-shadow: 0 10px 30px rgba(34,211,238,.16);
  transition: transform .2s ease, filter .2s ease, box-shadow .2s ease;
}
.login-page-v2 .login-card .primary-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
  box-shadow: 0 12px 34px rgba(34,211,238,.22);
}
.login-page-v2 .demo-note {
  margin-top: 14px;
  padding: 10px 11px;
  border: 1px solid #183039;
  border-radius: 11px;
  color: #64858a;
  background: rgba(8,17,21,.76);
  font-size: 10px;
  line-height: 1.5;
}
.login-page-v2 .error {
  margin: -4px 0 11px;
  color: #fda4af;
  font-size: 11px;
}
.login-expand-hint {
  color: #54777c;
  font-size: 10px;
  letter-spacing: .04em;
  text-align: center;
}
.login-expand-hint b { color: #8bc7ca; }

@media (max-width: 620px) {
  .login-page.login-page-v2 {
    min-height: 100vh;
    min-height: 100dvh;
    padding-top: max(28px, env(safe-area-inset-top, 0px));
    padding-right: max(18px, env(safe-area-inset-right, 0px));
    padding-bottom: max(32px, env(safe-area-inset-bottom, 0px));
    padding-left: max(18px, env(safe-area-inset-left, 0px));
  }
  .login-page-v2 .login-side { width: 100%; gap: 16px; }
  .login-stage-brand .login-stage-mark { width: 42px; height: 42px; border-radius: 14px; }
  .login-stage-brand strong { font-size: 23px; }
  .login-stage-brand small { font-size: 9px; }
  .login-page-v2 .login-card.login-expand-card {
    --expand-width: 100%;
    width: min(286px, calc(100vw - 36px));
    max-width: 100%;
  }
  .login-expand-card.is-open,
  .login-expand-card:focus-within { width: 100%; }
  .login-expand-card.is-open .login-expand-body,
  .login-expand-card:focus-within .login-expand-body {
    max-height: min(650px, calc(100dvh - 190px));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .login-trigger { height: 52px; }
  .login-expand-hint { font-size: 9px; }
  .login-page-v2 .field input { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .login-page.login-page-v2::after,
  .login-expand-card::before { animation: none; }
  .login-page-v2 .login-card.login-expand-card,
  .login-expand-body,
  .login-trigger::before,
  .login-trigger::after,
  .login-trigger-lock { transition-duration: .01ms !important; }
}

@keyframes yk25BorderFlow { to { background-position: -220% 0; } }
@keyframes yk25Ambient {
  from { transform: translate3d(-8%, -6%, 0) scale(.92); }
  to { transform: translate3d(10%, 7%, 0) scale(1.08); }
}