/* Prototipo de login para Bibliotecas UNAL
   Diseño inspirado en la tarjeta de administración del módulo APC. */

:root {
  --unal-green: #5f7f1f;
  --unal-green-dark: #446015;
  --unal-teal: #004c35;
  --unal-teal-dark: #003728;
  --text: #18352b;
  --muted: #65736d;
  --line: #dbe5dc;
  --soft: #f4f7f2;
  --surface: #ffffff;
  --focus: #9dbd4d;
  --danger: #a33b33;
  --shadow: 0 28px 75px rgba(30, 67, 51, .16), 0 6px 20px rgba(30, 67, 51, .07);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 18%, rgba(95, 127, 31, .11), transparent 31%),
    linear-gradient(145deg, #fafcf9 0%, #f1f5ef 100%);
  font-family: Arial, Helvetica, sans-serif;
}

button,
input {
  font: inherit;
}

.login-stage {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 34px 20px 62px;
  position: relative;
}

.login-card {
  width: min(100%, 440px);
  padding: 32px;
  border: 1px solid rgba(31, 77, 58, .08);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .97);
  box-shadow: var(--shadow);
}

.brand {
  text-align: center;
}

.brand__shield {
  display: block;
  width: auto;
  height: 112px;
  max-width: 170px;
  margin: 0 auto 16px;
  object-fit: contain;
}

.brand__eyebrow {
  margin: 0 0 8px;
  color: var(--unal-green);
  font-size: 11px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: .075em;
  text-transform: uppercase;
}

.brand h1 {
  margin: 0;
  color: #182a23;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(25px, 4vw, 30px);
  line-height: 1.14;
}

.brand__subtitle {
  max-width: 330px;
  margin: 11px auto 27px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.auth-chooser {
  display: grid;
  gap: 13px;
}

.btn {
  width: 100%;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 16px;
  border: 1px solid transparent;
  border-radius: 11px;
  cursor: pointer;
  font-weight: 800;
  text-decoration: none;
  transition: transform .16s ease, background-color .16s ease, border-color .16s ease, box-shadow .16s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:focus-visible,
input:focus-visible,
summary:focus-visible,
.back-home:focus-visible,
.icon-link:focus-visible,
.password-toggle:focus-visible {
  outline: 3px solid rgba(157, 189, 77, .55);
  outline-offset: 3px;
}

.btn--primary {
  color: #fff;
  background: var(--unal-green);
  border-color: var(--unal-green);
  box-shadow: 0 8px 18px rgba(95, 127, 31, .16);
}

.btn--primary:hover {
  background: var(--unal-green-dark);
  border-color: var(--unal-green-dark);
}

.btn--outline {
  color: var(--unal-teal);
  background: #fff;
  border-color: #cdd9cf;
}

.btn--outline:hover {
  border-color: #98ae9d;
  background: #f9fbf8;
}

.btn__icon {
  width: 21px;
  text-align: center;
  font-size: 17px;
}

.divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  color: #849189;
  font-size: 12px;
  font-weight: 700;
}

.divider span {
  height: 1px;
  background: var(--line);
}

.divider b {
  font-weight: 700;
}

.credentials {
  display: grid;
  gap: 16px;
}

.credentials[hidden] {
  display: none;
}

.form-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 2px;
}

.form-head h2 {
  margin: 0 0 4px;
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
}

.form-head p {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.4;
}

.icon-link {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 0;
  border-radius: 50%;
  color: var(--unal-teal);
  background: #eef4ef;
  cursor: pointer;
  font-size: 18px;
}

.field {
  display: grid;
  gap: 7px;
}

.field label {
  color: var(--unal-teal-dark);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .03em;
  text-transform: uppercase;
}

.field input {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid #cad8cc;
  border-radius: 10px;
  color: var(--text);
  background: #fbfcfb;
}

.password-control {
  position: relative;
}

.password-control input {
  padding-right: 58px;
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 9px;
  transform: translateY(-50%);
  padding: 5px 8px;
  border: 0;
  border-radius: 7px;
  color: var(--unal-teal);
  background: #eef4ef;
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}

.form-message {
  min-height: 18px;
  margin: -4px 0 0;
  color: var(--danger);
  font-size: 12px;
  line-height: 1.4;
}

.security-note {
  margin-top: 22px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.security-note summary {
  color: var(--unal-teal);
  cursor: pointer;
  font-weight: 800;
}

.security-note div {
  padding: 9px 2px 0;
  line-height: 1.5;
}

.security-note p {
  margin: 0 0 8px;
}

.back-home {
  display: block;
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px solid #d4dfd5;
  border-radius: 10px;
  color: var(--unal-teal);
  text-align: center;
  text-decoration: none;
  font-size: 12px;
  font-weight: 800;
}

.back-home:hover {
  background: #f8faf7;
}

.prototype-badge {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  margin: 0;
  color: #89958e;
  font-size: 11px;
  white-space: nowrap;
}

.demo-dialog {
  width: min(calc(100% - 36px), 390px);
  padding: 0;
  border: 0;
  border-radius: 18px;
  box-shadow: 0 24px 75px rgba(20, 50, 38, .25);
}

.demo-dialog::backdrop {
  background: rgba(13, 31, 24, .45);
  backdrop-filter: blur(3px);
}

.demo-dialog__body {
  padding: 26px;
}

.demo-dialog h2 {
  margin: 0 0 10px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 23px;
}

.demo-dialog p {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.55;
}

@media (max-width: 520px) {
  .login-stage {
    align-items: start;
    padding: 20px 14px 56px;
  }

  .login-card {
    padding: 24px 20px;
  }

  .brand__shield {
    height: 95px;
  }
}

@media (max-height: 680px) and (min-width: 521px) {
  .login-stage {
    align-items: start;
    padding-top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn {
    transition: none;
  }
}