/* TKB Control Centre 3.0 authentication surface. */
:root {
  color-scheme: dark;
  --auth-bg: #070a0f;
  --auth-panel: rgba(15, 22, 33, 0.94);
  --auth-line: rgba(165, 185, 210, 0.18);
  --auth-text: #eef5fb;
  --auth-soft: #bdcad8;
  --auth-muted: #8999ab;
  --auth-accent: #61d6c6;
}

body.auth-page {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  padding: clamp(18px, 4vw, 54px);
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 72% 3%, rgba(120, 169, 255, 0.12), transparent 34rem),
    radial-gradient(circle at 18% 100%, rgba(97, 214, 198, 0.09), transparent 30rem),
    var(--auth-bg);
  color: var(--auth-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.auth-page::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.012) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.01) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

.auth-card {
  position: relative;
  width: min(100%, 440px);
  margin: 0;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--auth-line);
  border-radius: 24px;
  background:
    radial-gradient(circle at 100% 0, rgba(97, 214, 198, 0.09), transparent 20rem),
    var(--auth-panel);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.48);
  backdrop-filter: blur(18px);
}

.auth-card.wide {
  width: min(100%, 1040px);
}

.auth-card::after {
  content: "SECURE OPERATIONS ACCESS";
  position: absolute;
  inset-block-start: 16px;
  inset-inline-end: 18px;
  color: rgba(137, 153, 171, 0.65);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.auth-card .brand {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  align-items: center;
  gap: 15px;
  margin-block-end: 28px;
  padding-block-end: 22px;
  border-block-end: 1px solid var(--auth-line);
}

.auth-card .brand-mark {
  inline-size: 58px;
  block-size: 58px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(97, 214, 198, 0.36);
  border-radius: 17px;
  background: linear-gradient(145deg, rgba(97, 214, 198, 0.17), rgba(120, 169, 255, 0.09));
  color: var(--auth-text);
  font-size: 1rem;
  font-weight: 950;
  letter-spacing: -0.08em;
  padding-inline-end: 0.08em;
}

.auth-card h1 {
  margin: 0;
  color: var(--auth-text);
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  letter-spacing: -0.035em;
}

.auth-card .brand p {
  margin: 3px 0 0;
  color: var(--auth-muted);
  font-size: 0.82rem;
}

.auth-card form,
.auth-card section {
  display: grid;
  gap: 16px;
}

.auth-card section + section {
  margin-block-start: 22px;
  padding-block-start: 22px;
  border-block-start: 1px solid var(--auth-line);
}

.auth-card section h2 {
  margin: 0;
  color: var(--auth-soft);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.auth-orientation {
  margin-block: 0 24px;
  padding: 18px;
  border: 1px solid rgba(97, 214, 198, 0.22);
  border-radius: 15px;
  background: rgba(97, 214, 198, 0.055);
}

.auth-orientation.compact {
  padding: 15px 17px;
}

.auth-orientation ol {
  counter-reset: auth-step;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.auth-orientation.compact ol {
  grid-template-columns: 1fr;
}

.auth-orientation li {
  counter-increment: auth-step;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-content: start;
  gap: 3px 9px;
  color: var(--auth-soft);
  font-size: 0.8rem;
}

.auth-orientation li::before {
  content: counter(auth-step);
  grid-row: 1 / span 2;
  inline-size: 28px;
  block-size: 28px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: rgba(97, 214, 198, 0.12);
  color: var(--auth-accent);
  font-weight: 900;
}

.auth-orientation li strong {
  color: var(--auth-text);
}

.auth-orientation li span {
  color: var(--auth-muted);
}

.auth-success,
.auth-final-check {
  margin: 2px 0 0;
  color: var(--auth-muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.auth-success {
  padding-block-start: 13px;
  border-block-start: 1px solid var(--auth-line);
}

.auth-success strong {
  color: #7fe2b4;
}

.auth-final-check {
  padding: 12px 14px;
  border: 1px solid rgba(242, 198, 109, 0.24);
  border-radius: 11px;
  background: rgba(242, 198, 109, 0.06);
  color: var(--auth-soft);
}

.auth-card label {
  display: grid;
  gap: 7px;
  color: var(--auth-soft);
  font-size: 0.77rem;
  font-weight: 720;
}

.auth-card label > small {
  color: var(--auth-muted);
  font-size: 0.7rem;
  font-weight: 520;
  line-height: 1.45;
}

.auth-card input,
.auth-card select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--auth-line);
  border-radius: 11px;
  background: rgba(4, 9, 15, 0.72);
  color: var(--auth-text);
  font: inherit;
}

.auth-card input:hover,
.auth-card select:hover {
  border-color: rgba(165, 185, 210, 0.35);
}

.auth-card input:focus,
.auth-card select:focus {
  outline: none;
  border-color: rgba(97, 214, 198, 0.72);
  box-shadow: 0 0 0 3px rgba(97, 214, 198, 0.12);
}

.auth-card button.primary {
  min-height: 48px;
  margin-block-start: 6px;
  border: 1px solid rgba(97, 214, 198, 0.4);
  border-radius: 11px;
  background: linear-gradient(180deg, #79dfd1, #53c8ba);
  color: #071210;
  font: 820 0.84rem/1 ui-sans-serif, system-ui, sans-serif;
  box-shadow: 0 10px 28px rgba(28, 151, 136, 0.16);
  cursor: pointer;
}

.auth-card button.primary:hover {
  filter: brightness(1.06);
}

.auth-card :focus-visible {
  outline: 3px solid rgba(97, 214, 198, 0.78);
  outline-offset: 3px;
}

.auth-card .alert.error {
  margin-block-end: 18px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 135, 146, 0.32);
  border-radius: 11px;
  background: rgba(255, 135, 146, 0.09);
  color: #ffb1b8;
}

@media (max-width: 680px) {
  body.auth-page {
    align-items: start;
  }

  .auth-card {
    margin-block: 10px;
    border-radius: 20px;
  }

  .auth-card::after {
    display: none;
  }

  .auth-card .grid.two {
    grid-template-columns: 1fr;
  }

  .auth-orientation ol {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-card *,
  .auth-card *::before,
  .auth-card *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}