/* Shared portal sign-in — split brand panel + form card */

:root {
  --portal-header-height: 4.25rem;
}

.session-main:has(#student-login:not(.session-hidden)),
.session-main:has(#tutor-login:not(.session-hidden)) {
  max-width: none;
  width: 100%;
  padding: 0;
  margin: 0;
}

.mtr-admin__main:has(#login:not(.session-hidden)),
.mtr-admin__main:has(#setup-account:not(.session-hidden)),
.mtr-parent__main:has(#parent-auth:not(.session-hidden)) {
  max-width: none;
  width: 100%;
  padding: 0;
  margin: 0;
}

.mtr-admin--auth .mtr-admin__main:has(.portal-login) {
  display: block;
  min-height: calc(100dvh - var(--portal-header-height));
}

.portal-login {
  display: grid;
  grid-template-columns: 1fr;
  min-height: calc(100dvh - var(--portal-header-height));
}

@media (min-width: 920px) {
  .portal-login {
    grid-template-columns: minmax(18rem, 1.05fr) minmax(22rem, 0.95fr);
  }
}

.portal-login__brand {
  position: relative;
  overflow: hidden;
  color: #fff;
  padding: clamp(1.75rem, 4vw, 3rem);
  display: flex;
  align-items: center;
  background:
    radial-gradient(circle at 20% 10%, rgba(255, 255, 255, 0.12), transparent 42%),
    radial-gradient(circle at 90% 80%, rgba(208, 4, 0, 0.35), transparent 45%),
    linear-gradient(145deg, #1a1a1a 0%, #2d0808 42%, #d00400 100%);
}

.portal-login__brand::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.portal-login__brand-inner {
  position: relative;
  z-index: 1;
  width: min(100%, 26rem);
  margin: 0 auto;
}

@media (min-width: 920px) {
  .portal-login__brand-inner {
    margin: 0;
    margin-left: clamp(0rem, 4vw, 2rem);
  }
}

.portal-login__logo {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  object-fit: contain;
  margin-bottom: 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.portal-login__eyebrow {
  margin: 0 0 0.45rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.88;
}

.portal-login__title {
  margin: 0 0 0.65rem;
  font-family: var(--font-heading);
  font-size: clamp(2.35rem, 5vw, 3.25rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: 0.02em;
}

.portal-login__lede {
  margin: 0 0 1.35rem;
  font-size: 1.02rem;
  line-height: 1.55;
  opacity: 0.94;
  max-width: 22rem;
}

.portal-login__features {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.portal-login__features li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.95rem;
  line-height: 1.45;
}

.portal-login__features .fa-solid {
  flex-shrink: 0;
  margin-top: 0.15rem;
  opacity: 0.95;
}

.portal-login__brand-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.1rem;
  font-size: 0.88rem;
}

.portal-login__brand-links a {
  color: rgba(255, 255, 255, 0.88);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.portal-login__brand-links a:hover {
  color: #fff;
}

.portal-login__panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.35rem, 4vw, 2.75rem);
  background:
    radial-gradient(ellipse 80% 60% at 100% 0%, rgba(208, 4, 0, 0.06), transparent 55%),
    radial-gradient(ellipse 70% 50% at 0% 100%, rgba(26, 26, 26, 0.04), transparent 50%),
    var(--paper, #f7f7f7);
}

.portal-login__card {
  width: min(100%, 27rem);
  background: var(--surface, #fff);
  border: 1px solid var(--line, rgba(0, 0, 0, 0.1));
  border-radius: calc(var(--radius, 0.65rem) + 2px);
  padding: clamp(1.35rem, 3vw, 1.75rem);
  box-shadow: 0 18px 40px rgba(26, 26, 26, 0.08);
}

.portal-login__card-head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 4vw, 2.15rem);
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--ink);
}

.portal-login__card-intro {
  margin: 0.4rem 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.portal-login__form {
  margin-top: 1.15rem;
}

.portal-login__form .session-field + .session-field {
  margin-top: 0.85rem;
}

.portal-login__form .session-actions {
  margin-top: 1.15rem;
}

.portal-login__form .session-btn[type="submit"],
.portal-login__form .session-btn--primary {
  width: 100%;
  justify-content: center;
  font-size: 1rem;
  padding: 0.72rem 1rem;
}

.portal-login__card-foot {
  margin-top: 1.15rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.portal-login__card-foot .session-meta {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
}

.portal-login__card-foot a {
  color: var(--accent);
  font-weight: 500;
}

.portal-login--student .portal-login__brand {
  background:
    radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.14), transparent 40%),
    linear-gradient(145deg, #1a1a1a 0%, #1f2937 38%, #7f1d1d 100%);
}

.portal-login--parent .portal-login__brand {
  background:
    radial-gradient(circle at 80% 15%, rgba(255, 255, 255, 0.1), transparent 38%),
    linear-gradient(145deg, #1a1a1a 0%, #3a0505 48%, #d00400 100%);
}

.portal-login--tutor .portal-login__brand,
.portal-login--admin .portal-login__brand {
  background:
    radial-gradient(circle at 10% 90%, rgba(208, 4, 0, 0.45), transparent 42%),
    linear-gradient(155deg, #0f0f0f 0%, #1a1a1a 55%, #5c0202 100%);
}

.portal-login .mtr-parent-auth-toggle {
  margin-top: 0.25rem;
  margin-bottom: 1rem;
}

.portal-login .mtr-parent-auth-toggle button {
  border-radius: 999px;
  font-weight: 500;
}

.portal-login .session-error:not(.session-hidden) {
  margin-top: 0.85rem;
}

@media (max-width: 919px) {
  .portal-login__brand {
    padding-bottom: 1.5rem;
  }

  .portal-login__features {
    margin-bottom: 1.15rem;
  }

  .portal-login__brand-links {
    display: none;
  }
}