/* KASC Research - authentication layer
   Extends kasc-site.v3.1.1.css without redefining the site identity. */

.kasc-auth-page {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 82% 8%, rgba(92, 242, 199, .12), transparent 28rem),
    radial-gradient(circle at 18% 88%, rgba(102, 185, 255, .07), transparent 32rem),
    linear-gradient(180deg, var(--ink-950), var(--ink-900) 54%, var(--ink-950));
}

.kasc-auth-header {
  height: var(--header-h);
  flex: 0 0 auto;
  border-bottom: 1px solid var(--line);
  background: rgba(2, 7, 17, .72);
  backdrop-filter: blur(18px) saturate(140%);
}

.kasc-auth-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.kasc-auth-security {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: var(--text-dim);
  font: 700 .68rem/1 ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.kasc-auth-security .live-dot {
  width: .42rem;
  height: .42rem;
}

.kasc-auth-main {
  position: relative;
  isolation: isolate;
  flex: 1 0 auto;
  display: grid;
  align-items: center;
  padding: clamp(3.5rem, 7vw, 7rem) 0;
  overflow: hidden;
}

.kasc-auth-main::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: .1;
  background: url("../images/kasc-grid.v3.0.0.svg") center/cover;
  pointer-events: none;
}

.kasc-auth-layout {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(390px, .72fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
}

.kasc-auth-context {
  max-width: 700px;
}

.kasc-auth-context h1 {
  max-width: 680px;
  margin-bottom: 1.4rem;
  font-size: clamp(3rem, 6vw, 6rem);
  font-weight: 690;
}

.kasc-auth-context > p:not(.eyebrow) {
  max-width: 610px;
  font-size: clamp(1rem, 1.5vw, 1.16rem);
}

.kasc-auth-signals {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 2rem;
}

.kasc-auth-signals span {
  padding: .35rem .65rem;
  color: var(--text-dim);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.018);
  font: 600 .67rem/1.25 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.kasc-auth-card {
  position: relative;
  width: 100%;
  max-width: 520px;
  justify-self: end;
  padding: clamp(1.5rem, 4vw, 2.35rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(14,29,47,.88), rgba(4,15,27,.96));
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  overflow: hidden;
}

.kasc-auth-card::before {
  content: "";
  position: absolute;
  width: 18rem;
  height: 18rem;
  right: -8rem;
  top: -11rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(92,242,199,.13), transparent 68%);
  pointer-events: none;
}

.kasc-auth-card__head {
  position: relative;
  margin-bottom: 1.6rem;
}

.kasc-auth-card__head .eyebrow {
  margin-bottom: .7rem;
}

.kasc-auth-card h1,
.kasc-auth-card h2 {
  margin-bottom: .65rem;
  font-size: clamp(1.9rem, 3.4vw, 2.65rem);
}

.kasc-auth-card p {
  margin-bottom: 1rem;
  font-size: .9rem;
}

.kasc-auth-form p {
  margin-bottom: 1rem;
}

.kasc-auth-form label {
  display: block;
  margin-bottom: .38rem;
  color: var(--text-soft);
  font-size: .72rem;
  font-weight: 720;
}

.kasc-auth-card input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
.kasc-auth-card select,
.kasc-auth-card textarea {
  width: 100%;
  min-height: 3rem;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: .7rem;
  background: rgba(255,255,255,.035);
  padding: .75rem .85rem;
  outline: none;
  transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.kasc-auth-card input:focus,
.kasc-auth-card select:focus,
.kasc-auth-card textarea:focus {
  border-color: rgba(92,242,199,.62);
  background: rgba(92,242,199,.045);
  box-shadow: 0 0 0 .22rem rgba(92,242,199,.08);
}

.kasc-auth-card input[type="checkbox"],
.kasc-auth-card input[type="radio"] {
  accent-color: var(--accent-strong);
}

.kasc-auth-card .helptext {
  display: block;
  margin-top: .35rem;
  color: var(--text-dim);
  font-size: .68rem;
}

.kasc-auth-card .errorlist,
.kasc-auth-card .alert-danger {
  padding: .7rem .8rem;
  margin: .5rem 0 1rem;
  list-style: none;
  color: var(--danger);
  border: 1px solid rgba(255,125,137,.25);
  border-radius: .7rem;
  background: rgba(255,125,137,.06);
  font-size: .75rem;
}

.kasc-auth-card .btn,
.kasc-auth-card button[type="submit"] {
  width: 100%;
  min-height: 2.9rem;
}

.kasc-auth-card .btn-secondary,
.kasc-auth-card .btn-link {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(255,255,255,.025);
  box-shadow: none;
}

.kasc-auth-card .btn-secondary:hover,
.kasc-auth-card .btn-link:hover {
  color: var(--text);
  border-color: rgba(92,242,199,.55);
  background: rgba(92,242,199,.06);
}

.kasc-auth-card .float-right {
  float: none !important;
}

.kasc-auth-wizard-actions {
  display: grid;
  gap: .65rem;
  margin-top: 1.35rem;
}

.kasc-auth-wizard-actions > * {
  margin: 0 !important;
}

.kasc-auth-wizard-actions .btn,
.kasc-auth-wizard-actions button,
.kasc-auth-wizard-actions input[type="submit"] {
  width: 100%;
}

.kasc-auth-divider {
  position: relative;
  display: flex;
  align-items: center;
  gap: .8rem;
  margin: 1.5rem 0;
  color: var(--text-dim);
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .1em;
}

.kasc-auth-divider::before,
.kasc-auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.kasc-auth-actions {
  display: flex;
  gap: .65rem;
}

.kasc-auth-actions--stack {
  flex-direction: column;
}

.kasc-auth-meta {
  margin-top: 1.3rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}

.kasc-auth-meta .text-link {
  font-size: .78rem;
}

.kasc-auth-recovery {
  margin-top: .2rem;
}

.kasc-auth-recovery p {
  color: var(--text-dim);
  font-size: .75rem;
}

.kasc-auth-messages {
  position: relative;
  margin-bottom: 1rem;
}

.kasc-auth-message {
  margin-bottom: .8rem;
  padding: .8rem .9rem;
  color: var(--text-soft);
  border: 1px solid rgba(102,185,255,.24);
  border-radius: .75rem;
  background: rgba(102,185,255,.06);
  font-size: .76rem;
}

.kasc-auth-message--success {
  color: var(--accent);
  border-color: rgba(92,242,199,.28);
  background: rgba(92,242,199,.055);
}

.kasc-auth-message--warning {
  color: var(--warning);
  border-color: rgba(255,201,107,.28);
  background: rgba(255,201,107,.055);
}

.kasc-auth-message--error {
  color: var(--danger);
  border-color: rgba(255,125,137,.28);
  background: rgba(255,125,137,.055);
}

.kasc-auth-qr {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1.15rem;
  align-items: center;
  margin: 1.4rem 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(255,255,255,.022);
}

.kasc-auth-qr__image {
  display: grid;
  place-items: center;
  padding: .7rem;
  border-radius: .8rem;
  background: #fff;
}

.kasc-auth-qr__image img {
  width: 100%;
  aspect-ratio: 1;
}

.kasc-auth-qr__copy strong {
  display: block;
  margin-bottom: .2rem;
  color: var(--text);
  font-size: .78rem;
}

.kasc-auth-qr__copy p {
  margin-bottom: .75rem;
  color: var(--text-dim);
  font-size: .7rem;
}

.kasc-auth-secret {
  margin: 1rem 0 1.4rem;
  padding: .8rem .9rem;
  border: 1px solid var(--line);
  border-radius: .8rem;
  background: rgba(255,255,255,.018);
}

.kasc-auth-secret summary {
  color: var(--text-soft);
  cursor: pointer;
  font-size: .75rem;
  font-weight: 700;
}

.kasc-auth-secret code {
  display: block;
  margin-top: .7rem;
  padding: .75rem;
  overflow-wrap: anywhere;
  color: var(--accent);
  border: 1px solid rgba(92,242,199,.16);
  border-radius: .55rem;
  background: rgba(92,242,199,.045);
  font: 650 .72rem/1.5 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.kasc-auth-success-mark {
  width: 3.3rem;
  height: 3.3rem;
  display: grid;
  place-items: center;
  margin-bottom: 1.3rem;
  color: var(--ink-950);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 .4rem rgba(92,242,199,.08), 0 0 2rem rgba(92,242,199,.2);
  font-weight: 900;
  font-size: 1.25rem;
}

.kasc-backup-tokens {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: .55rem;
  margin: 1.2rem 0;
}

.kasc-backup-tokens code {
  display: block;
  padding: .7rem;
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: .55rem;
  background: rgba(255,255,255,.025);
  text-align: center;
  font: 700 .72rem/1 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.kasc-auth-footer {
  flex: 0 0 auto;
  border-top: 1px solid var(--line);
  background: rgba(2,7,17,.7);
}

.kasc-auth-footer .shell {
  min-height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-dim);
  font-size: .66rem;
}

@media (max-width: 900px) {
  .kasc-auth-layout {
    grid-template-columns: 1fr;
    gap: 2.4rem;
  }

  .kasc-auth-context {
    max-width: 760px;
  }

  .kasc-auth-context h1 {
    max-width: 760px;
    font-size: clamp(2.7rem, 9vw, 5rem);
  }

  .kasc-auth-card {
    max-width: 620px;
    justify-self: start;
  }
}

@media (max-width: 620px) {
  .kasc-auth-security {
    display: none;
  }

  .kasc-auth-main {
    padding: 2.2rem 0 3rem;
  }

  .kasc-auth-context h1 {
    font-size: clamp(2.45rem, 13vw, 4rem);
  }

  .kasc-auth-signals {
    display: none;
  }

  .kasc-auth-card {
    padding: 1.25rem;
    border-radius: 1rem;
  }

  .kasc-auth-qr {
    grid-template-columns: 1fr;
  }

  .kasc-auth-qr__image {
    width: 180px;
    max-width: 100%;
  }

  .kasc-backup-tokens {
    grid-template-columns: 1fr;
  }

  .kasc-auth-footer .shell {
    justify-content: center;
    text-align: center;
  }

  .kasc-auth-footer .shell span:last-child {
    display: none;
  }
}