/* Smart EduHub — нэвтрэх хуудас (study administrator login-тай ижил хэмжээ, зай) */

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

.login-page {
  --login-bg: #f8fafc;
  --login-bg2: #eef6ff;
  --home-text: #1e293b;
  --home-muted: #64748b;
  --home-accent: #2c8cff;
  --login-card: #ffffff;
  --login-text: #566a7f;
  --login-muted: #697a8d;
  --login-border: #d9dee3;
  --login-input-bg: #ffffff;
  --login-accent: #2c8cff;
  --login-accent2: #22cee9;
  --login-error-bg: #fef2f2;
  --login-error-text: #991b1b;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  padding: 0;
  font-family: 'Roboto Condensed', sans-serif;
  color: var(--login-text);
  line-height: 1.53;
  background: linear-gradient(165deg, var(--login-bg) 0%, var(--login-bg2) 55%, #f0f7ff 100%);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  position: relative;
  overflow-x: hidden;
  overflow-y: auto;
}

.login-page .home-header {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  width: 100%;
}

.login-page-main {
  position: relative;
  z-index: 1;
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 2rem 1.5rem;
}

.login-page-layout {
  display: grid;
  grid-template-columns: minmax(380px, 1.1fr) minmax(320px, 460px);
  align-items: center;
  gap: clamp(2rem, 4vw, 3.5rem);
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
}

.login-page-layout--wide {
  grid-template-columns: minmax(400px, 1fr) minmax(480px, 600px);
}

.login-intro {
  min-width: 0;
  max-width: 560px;
}

.login-intro .home-hero__eyebrow {
  font-size: 0.9rem;
  padding: 0.4rem 0.9rem;
  margin-bottom: 1.15rem;
}

.login-intro .home-hero__title {
  color: var(--home-text);
  font-size: clamp(1.85rem, 3.2vw, 2.65rem);
  margin-bottom: 1rem;
  line-height: 1.25;
  text-transform: none;
  letter-spacing: -0.01em;
}

.login-intro .home-hero__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  margin-bottom: 1.65rem;
  text-transform: none;
  letter-spacing: normal;
}

.login-intro .home-hero__tagline {
  margin-bottom: 0;
  font-size: 1.1rem;
  line-height: 1.65;
  max-width: 36em;
}

@media (max-width: 1020px) {
  .login-page-layout--wide {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .login-page-layout--wide .login-intro {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
  }

  .login-page-layout--wide .login-intro .home-hero__eyebrow {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 900px) {
  .login-page-layout {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .login-intro {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
  }

  .login-intro .home-hero__eyebrow {
    margin-left: auto;
    margin-right: auto;
  }
}

/* Дэвсгэр */
.app-page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  contain: strict;
}

.guest-login-bg-dots {
  position: absolute;
  width: 220px;
  height: 220px;
  background-image: radial-gradient(circle, rgba(44, 140, 255, 0.2) 2px, transparent 2px);
  background-size: 14px 14px;
  pointer-events: none;
  z-index: 0;
}

.guest-login-bg-dots--tr { top: 12%; right: 4%; }
.guest-login-bg-dots--bl { bottom: 14%; left: 8%; }

/* Shell + card */
.login-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 460px;
  margin: auto;
  flex-shrink: 0;
  transition: max-width 0.25s ease;
}

.login-shell--wide {
  max-width: 600px;
}

.login-card {
  background: var(--login-card);
  border: 1px solid rgba(67, 89, 113, 0.12);
  border-radius: 0.5rem;
  box-shadow: 0 2px 6px rgba(67, 89, 113, 0.12);
  padding: 1.5rem;
}

.login-brand {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.login-brand-logo {
  width: 250px;
  max-width: 100%;
  height: auto;
  display: block;
}

.login-fieldset {
  margin: 0 0 1.25rem;
  padding: 0;
  border: none;
}

.login-section-title {
  display: block;
  width: 100%;
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--login-text);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(67, 89, 113, 0.1);
}

.login-optional {
  font-weight: 400;
  font-size: 0.8125rem;
  color: var(--login-muted);
  text-transform: none;
  letter-spacing: normal;
}

.login-field--last {
  margin-bottom: 0;
}

.login-form--register .login-btn {
  margin-top: 0.25rem;
}

@keyframes loginAlertIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.login-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
  padding: 0.9rem 1rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.55;
  animation: loginAlertIn 0.35s ease-out;
}

.login-alert--error {
  color: var(--login-error-text);
  background: linear-gradient(135deg, #fef2f2 0%, #fff7f7 100%);
  border: 1px solid rgba(239, 68, 68, 0.22);
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.08);
}

.login-alert__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(239, 68, 68, 0.12);
  color: #dc2626;
}

.login-alert__icon svg {
  width: 1.125rem;
  height: 1.125rem;
}

.login-alert__text {
  flex: 1;
  min-width: 0;
  padding-top: 0.2rem;
  font-weight: 500;
}

.login-field {
  margin-bottom: 1.5rem;
}

.login-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 0;
}

.login-field-row .login-field {
  margin-bottom: 1.25rem;
  min-width: 0;
}

.login-field-row .login-field--last {
  margin-bottom: 1.25rem;
}

.login-fieldset > .login-field-row:last-child .login-field,
.login-fieldset > .login-field-row:last-child .login-field--last {
  margin-bottom: 0;
}

@media (max-width: 600px) {
  .login-field-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .login-field-row .login-field,
  .login-field-row .login-field--last {
    margin-bottom: 1.5rem;
  }

  .login-field-row .login-field--last {
    margin-bottom: 0;
  }
}

.login-label {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--login-text);
}

.login-input {
  width: 100%;
  display: block;
  padding: 0.543rem 0.9375rem;
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.53;
  font-family: inherit;
  color: var(--login-muted);
  background: var(--login-input-bg);
  border: 1px solid var(--login-border);
  border-radius: 0.375rem;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.login-input::placeholder {
  color: #b4bdc6;
  opacity: 1;
}

.login-input:focus {
  outline: 0;
  border-color: #056c37;
  box-shadow: 0 0 0 0.2rem rgba(5, 108, 55, 0.15);
}

.login-input-group {
  display: flex;
  align-items: stretch;
}

.login-input-group .login-input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right: 0;
}

.login-pw-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.875rem;
  background: var(--login-input-bg);
  border: 1px solid var(--login-border);
  border-left: 0;
  border-radius: 0 0.375rem 0.375rem 0;
  color: var(--login-muted);
  cursor: pointer;
}

.login-pw-toggle:hover {
  color: var(--login-text);
}

.login-check-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
}

.login-forgot-link {
  font-size: 0.9375rem;
  color: var(--login-accent);
  text-decoration: none;
  white-space: nowrap;
}

.login-forgot-link:hover {
  text-decoration: underline;
}

.login-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--login-muted);
  cursor: pointer;
}

.login-check input {
  width: 1.1em;
  height: 1.1em;
  margin: 0;
  accent-color: var(--login-accent);
}

.login-btn {
  display: block;
  width: 100%;
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--login-accent);
  border-radius: 0.375rem;
  background: linear-gradient(135deg, #2c8cff 0%, #22cee9 100%);
  color: #fff;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.53;
  cursor: pointer;
}

.login-btn:hover {
  filter: brightness(1.03);
}

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

@media (max-width: 575.98px) {
  .login-page {
    padding: 1rem;
  }

  .login-card {
    padding: 1.25rem 1rem;
  }

  .login-check-row {
    flex-wrap: wrap;
    gap: 0.75rem;
  }
}

/* Нууц үг сэргээх хуудас */
.login-page--centered .login-page-main {
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
}

.login-shell--forgot {
  max-width: 420px;
}

.login-card--forgot {
  padding: 2rem 1.75rem;
}

.login-reset-title {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: #1e293b;
  text-align: center;
}

.login-reset-desc {
  margin: 0 0 1.5rem;
  font-size: 0.9375rem;
  color: var(--login-muted);
  text-align: center;
  line-height: 1.55;
}

.login-input--forgot:focus {
  border-color: #6f42c1;
  box-shadow: 0 0 0 0.2rem rgba(111, 66, 193, 0.15);
}

.login-btn--green {
  border-color: #1e512e;
  background: #1e512e;
}

.login-btn--green:hover {
  filter: brightness(1.06);
}

.login-reset-footer {
  margin: 1.25rem 0 0;
  text-align: center;
  font-size: 0.9375rem;
}

.login-reset-link {
  color: #1e512e;
  text-decoration: none;
  font-weight: 500;
}

.login-reset-link:hover {
  text-decoration: underline;
}

.login-reset-sep {
  margin: 0 0.5rem;
  color: var(--login-muted);
}

.login-alert--success {
  color: #166534;
  background: linear-gradient(135deg, #f0fdf4 0%, #f7fef9 100%);
  border: 1px solid rgba(34, 197, 94, 0.22);
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.08);
}

@media (max-width: 575.98px) {
  .login-card--forgot {
    padding: 1.5rem 1.25rem;
  }
}