/* Auth pages (sign-in, 2FA, password reset): the SGA thermal voucher. */
@font-face {
  font-family: 'Doto';
  src: url("../fonts/doto-latin.1cf5c17e481d.woff2") format('woff2');
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url("../fonts/jetbrains-mono-latin.570751c5f8b4.woff2") format('woff2');
  font-weight: 100 800;
  font-display: swap;
}

:root {
  --petrol: #143d4e;
  --petrol-ink: #9db3be;
  --paper: #f4f6f3;
  --ink: #1a1b24;
  --ink-soft: #4a4d57;
  --edge: #868c93;
  --magenta: #c3196a;
  --tooth: 15px;
  --mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}

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

html, body { margin: 0; min-height: 100%; line-height: 1.35; }

body.auth {
  min-height: 100vh;
  background: var(--petrol);
  color: var(--ink);
  font: 400 17px/1.35 var(--mono);
  -webkit-font-smoothing: antialiased;
}

.auth ::selection { background: var(--magenta); color: #fff; }

.auth-stage {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  padding: 46px 16px 32px;
}

/* The slip: flat paper with torn (zig-zag) top and bottom edges. The wrapper
   carries the shadow because the mask clips box-shadow on the slip itself. */
.slip-wrap {
  width: min(100%, 330px);
  filter: drop-shadow(0 18px 22px rgba(4, 18, 26, .45));
}
.slip {
  background: var(--paper);
  padding: 53px 22px 48px;
  -webkit-mask:
    conic-gradient(from 135deg at top, #0000, #000 1deg 89deg, #0000 90deg) top / var(--tooth) 51% repeat-x,
    conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / var(--tooth) 51% repeat-x;
  mask:
    conic-gradient(from 135deg at top, #0000, #000 1deg 89deg, #0000 90deg) top / var(--tooth) 51% repeat-x,
    conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / var(--tooth) 51% repeat-x;
}

/* SGA wordmark, printed one character at a time like a print-head pass. */
.slip-mark {
  margin: 0;
  display: flex;
  justify-content: center;
  font: 900 min(158px, 46vw)/0.8 'Doto', var(--mono);
  font-variation-settings: 'ROND' 100;
  padding-left: 0.1em; /* offsets Doto's trailing sidebearing so the ink centres */
  color: var(--ink);
}
.slip-mark span { display: block; }
/* The print-head pass runs once, on the first render of the sign-in step. */
.is-print .slip-mark span {
  animation: print 0.42s steps(7, end) backwards;
}
.is-print .slip-mark span:nth-child(2) { animation-delay: 0.32s; }
.is-print .slip-mark span:nth-child(3) { animation-delay: 0.64s; }
@keyframes print {
  from { clip-path: inset(0 0 100% 0); }
  to { clip-path: inset(0 0 0 0); }
}
@media (prefers-reduced-motion: reduce) {
  .is-print .slip-mark span { animation: none; }
}

.slip-rule {
  height: 2px;
  margin: 0;
  border: 0;
  background: repeating-linear-gradient(90deg, var(--ink) 0 7px, transparent 7px 10px);
}
.slip-mark + .slip-rule { margin-top: 20px; }

.slip-name {
  margin: 9px 0 13px;
  text-align: center;
  font-size: 15.5px;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.slip-body { margin-top: 26px; }
.slip-body p { margin: 0 0 18px; line-height: 1.45; }
.slip-body h2 {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
  text-transform: uppercase;
  text-align: center;
}
.slip-body ul { margin: 0 0 18px; padding-left: 1.2em; font-size: 14px; color: var(--ink-soft); }

/* Fields */
.field { margin-bottom: 17px; }
.field label { display: block; margin-bottom: 4px; }
.field label::after { content: ' :'; }
.slip input:not([type=hidden]):not([type=submit]):not([type=checkbox]) {
  display: block;
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--edge);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px var(--mono);
  caret-color: var(--magenta);
  outline: none;
}
.slip input:focus {
  border-color: var(--magenta);
  box-shadow: 0 0 0 1.5px var(--magenta);
}
.slip input[aria-invalid=true], .field-has-error input { border-color: var(--magenta); }

/* The 2FA token reads as the voucher's authorization code. */
.slip input[name$=otp_token], .slip input[name$='-token'] {
  text-align: center;
  font-size: 24px;
  letter-spacing: 0.4em;
  font-variant-numeric: tabular-nums;
}

.field-error, .slip-alert {
  color: var(--magenta);
  font-size: 14px;
}
.field-error { margin-top: 6px; }
.slip-alert {
  margin: 0 0 17px;
  padding: 10px 0;
  border-block: 2px dashed var(--magenta);
}

/* Actions */
.btn-ink, .btn-line {
  display: block;
  width: 100%;
  min-height: 47px;
  padding: 10px 12px;
  border-radius: 6px;
  font: 600 17px var(--mono);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s ease-out, color .15s ease-out;
}
.btn-ink { margin-top: 25px; border: 0; background: var(--ink); color: var(--paper); }
.btn-ink:hover { background: #2c2e3a; }
.btn-line { margin-top: 10px; border: 1.5px solid var(--ink); background: transparent; color: var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--paper); }
.btn-text {
  display: block;
  width: 100%;
  margin-top: 17px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--ink);
  font: 400 17px var(--mono);
  text-align: center;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
.btn-text:hover { color: var(--magenta); }
.btn-ink:focus-visible, .btn-line:focus-visible, .btn-text:focus-visible {
  outline: 2px solid var(--magenta);
  outline-offset: 3px;
}

.auth-footer {
  color: var(--petrol-ink);
  font: 400 15px/1.3 system-ui, -apple-system, 'Segoe UI', sans-serif;
  text-align: center;
  text-wrap: balance;
}

@media (max-width: 480px) {
  .slip-wrap { width: 100%; }
  .slip { padding-inline: 20px; }
  .auth-stage { gap: 28px; justify-content: flex-start; padding-top: 24px; }
}

/* django-two-factor-auth's own pages (setup, backup tokens, profile) use
   Bootstrap classes; map them onto the slip's controls. */
.slip .btn { width: 100%; margin-top: 10px; border-radius: 6px; font: 600 17px var(--mono); }
.slip .btn-primary { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.slip .btn-link { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.slip img { max-width: 100%; height: auto; }