/*
 * Physics SciEd Professional Login Portals
 * Version 1.0 | 17 July 2026
 *
 * Shared presentation for:
 * - Student Login
 * - Teacher Login
 * - System Owner Login
 *
 * Authentication behavior remains inside each page's existing module script.
 */

:root {
  --login-navy: #10233f;
  --login-navy-soft: #18365f;
  --login-gold: #f3c632;
  --login-orange: #f2a60c;
  --login-orange-deep: #dc8500;
  --login-cream: #fffdf0;
  --login-soft: #fff9c4;
  --login-border: #e9e2c8;
  --login-border-neutral: #d9dde5;
  --login-muted: #667085;
  --login-white: #ffffff;
  --login-focus: #174ea6;
}

html {
  width: 100%;
  height: 100%;
  background: var(--login-cream);
}

body.psc-login-page {
  width: 100%;
  height: 100%;
  min-height: 100svh;
  margin: 0;
  overflow: hidden;
  color: var(--login-navy);
  background:
    radial-gradient(
      circle at 8% 8%,
      rgba(243, 198, 50, 0.16),
      transparent 26%
    ),
    linear-gradient(145deg, #fffdf0 0%, #f7f9fc 100%);
  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

body.psc-login-page *,
body.psc-login-page *::before,
body.psc-login-page *::after {
  box-sizing: border-box;
}

body.psc-login-page :where(a, button):focus-visible {
  outline: 3px solid rgba(23, 78, 166, 0.34);
  outline-offset: 3px;
}

.login-viewport {
  width: 100%;
  height: 100dvh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(10px, 2.2vh, 22px);
  overflow: hidden;
}

.login-card {
  width: min(1040px, 100%);
  height: min(620px, calc(100dvh - 24px));
  min-height: min(500px, calc(100dvh - 24px));
  overflow: hidden;
  background: var(--login-white);
  border: 1px solid var(--login-border);
  border-radius: clamp(22px, 3vw, 32px);
  box-shadow: none !important;
}

.login-grid {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr);
}

.login-brand-panel,
.login-action-panel {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.login-brand-panel {
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  padding:
    clamp(26px, 4.3vw, 48px)
    clamp(26px, 4.6vw, 54px);
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

/* Student portal: welcoming amber-orange identity panel. */
.psc-student-login-page .login-brand-panel {
  color: var(--login-navy);
  background:
    linear-gradient(
      145deg,
      #ffc642 0%,
      var(--login-orange) 62%,
      #e88a00 100%
    );
}

/* Teacher and system-owner portals share the same professional navy treatment. */
.psc-teacher-login-page .login-brand-panel,
.psc-system-owner-login-page .login-brand-panel {
  color: var(--login-white);
  background:
    linear-gradient(
      145deg,
      var(--login-navy) 0%,
      var(--login-navy-soft) 70%,
      #244a7d 100%
    );
}

.login-brand-decoration {
  position: absolute;
  z-index: -1;
  width: 330px;
  height: 330px;
  right: -165px;
  bottom: -170px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
}

.login-brand-decoration::before,
.login-brand-decoration::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.login-brand-decoration::before {
  width: 220px;
  height: 220px;
  inset: 54px;
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.login-brand-decoration::after {
  width: 112px;
  height: 112px;
  inset: 108px;
  background: rgba(255, 255, 255, 0.12);
}

.psc-student-login-page .login-brand-decoration,
.psc-student-login-page .login-brand-decoration::before {
  border-color: rgba(16, 35, 63, 0.16);
}

.psc-student-login-page .login-brand-decoration::after {
  background: rgba(255, 255, 255, 0.22);
}

.login-brand-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.brand-logo-shell {
  width: 58px;
  height: 58px;
  flex: 0 0 58px;
  display: grid;
  place-items: center;
  padding: 4px;
  background: var(--login-white);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 18px;
}

.brand-logo {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  border-radius: 14px;
}

.role-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 34px;
  padding: 0.45rem 0.76rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.psc-student-login-page .role-pill {
  color: var(--login-navy);
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(16, 35, 63, 0.16);
}

.psc-teacher-login-page .role-pill,
.psc-system-owner-login-page .role-pill {
  color: var(--login-navy);
  background: var(--login-gold);
  border: 1px solid var(--login-gold);
}

.login-brand-copy {
  position: relative;
  z-index: 1;
}

.brand-kicker,
.access-eyebrow {
  margin: 0 0 10px;
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.105em;
  text-transform: uppercase;
}

.psc-student-login-page .brand-kicker {
  color: rgba(16, 35, 63, 0.72);
}

.psc-teacher-login-page .brand-kicker,
.psc-system-owner-login-page .brand-kicker {
  color: rgba(255, 255, 255, 0.7);
}

.login-title,
.action-title {
  font-family: "Libre Baskerville", Georgia, serif;
  font-weight: 700;
  letter-spacing: -0.035em;
}

.login-title {
  max-width: 650px;
  margin: 0 0 15px;
  font-size: clamp(2rem, 3.4vw, 3.15rem);
  line-height: 1.1;
}

.psc-student-login-page .login-title {
  color: var(--login-navy);
}

.psc-teacher-login-page .login-title,
.psc-system-owner-login-page .login-title {
  color: var(--login-white);
}

.login-subtitle {
  max-width: 650px;
  margin: 0;
  font-size: clamp(0.9rem, 1.15vw, 1rem);
  line-height: 1.65;
}

.psc-student-login-page .login-subtitle {
  color: rgba(16, 35, 63, 0.78);
}

.psc-teacher-login-page .login-subtitle,
.psc-system-owner-login-page .login-subtitle {
  color: rgba(255, 255, 255, 0.78);
}

.login-feature-list {
  max-width: 620px;
  display: grid;
  gap: 9px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.login-feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 34px;
  font-size: 0.84rem;
  font-weight: 720;
}

.login-feature-list i {
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  display: grid;
  place-items: center;
  border-radius: 9px;
}

.psc-student-login-page .login-feature-list {
  color: rgba(16, 35, 63, 0.88);
}

.psc-student-login-page .login-feature-list i {
  color: var(--login-navy);
  background: rgba(255, 255, 255, 0.5);
}

.psc-teacher-login-page .login-feature-list,
.psc-system-owner-login-page .login-feature-list {
  color: rgba(255, 255, 255, 0.88);
}

.psc-teacher-login-page .login-feature-list i,
.psc-system-owner-login-page .login-feature-list i {
  color: var(--login-gold);
  background: rgba(255, 255, 255, 0.09);
}

.brand-footnote {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0;
  font-size: 0.7rem;
  font-weight: 700;
}

.psc-student-login-page .brand-footnote {
  color: rgba(16, 35, 63, 0.67);
}

.psc-teacher-login-page .brand-footnote,
.psc-system-owner-login-page .brand-footnote {
  color: rgba(255, 255, 255, 0.57);
}

.login-action-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding:
    clamp(26px, 4.3vw, 48px)
    clamp(26px, 4.5vw, 52px);
  background:
    linear-gradient(180deg, var(--login-white) 0%, #fffdf8 100%);
}

.login-action-content {
  width: 100%;
  max-width: 420px;
  margin-inline: auto;
}

.access-eyebrow {
  color: var(--login-orange-deep);
}

.psc-teacher-login-page .access-eyebrow,
.psc-system-owner-login-page .access-eyebrow {
  color: #a66d00;
}

.action-title {
  margin: 0 0 12px;
  color: var(--login-navy);
  font-size: clamp(1.55rem, 2.3vw, 2.15rem);
  line-height: 1.16;
}

.action-copy {
  margin: 0 0 24px;
  color: var(--login-muted);
  font-size: 0.91rem;
  line-height: 1.62;
}

.google-btn {
  width: 100%;
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0.75rem 1rem;
  color: #202124 !important;
  background: var(--login-white) !important;
  border: 1px solid #dadce0 !important;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 760;
  letter-spacing: 0.005em;
  box-shadow: none !important;
  transition:
    background-color 150ms ease,
    border-color 150ms ease,
    transform 150ms ease;
}

.google-btn:hover {
  color: #202124 !important;
  background: #f8faff !important;
  border-color: #aeb4be !important;
  transform: translateY(-1px);
}

.google-btn:active {
  transform: translateY(0);
}

.google-btn:disabled {
  opacity: 0.68;
  cursor: wait;
}

.google-logo {
  display: block;
  flex: 0 0 19px;
}

.login-status {
  min-height: 38px;
  display: flex;
  align-items: center;
  margin: 7px 0 8px;
  font-size: 0.82rem;
  line-height: 1.35;
}

.login-notice {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 11px;
  padding: 13px 14px;
  background: var(--login-cream);
  border: 1px solid var(--login-border);
  border-radius: 16px;
}

.psc-system-owner-login-page .login-notice {
  background: var(--login-soft);
  border-color: var(--login-gold);
}

.notice-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--login-navy);
  background: var(--login-white);
  border: 1px solid var(--login-border);
  border-radius: 11px;
}

.login-notice strong {
  display: block;
  margin-bottom: 3px;
  color: var(--login-navy);
  font-size: 0.84rem;
}

.login-notice p {
  margin: 0;
  color: var(--login-muted);
  font-size: 0.77rem;
  line-height: 1.48;
}

.return-home-link {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 17px;
  color: var(--login-navy);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 780;
}

.return-home-link:hover {
  color: var(--login-orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.login-privacy-note {
  width: 100%;
  max-width: 420px;
  margin: 18px auto 0;
  color: #8992a3;
  font-size: 0.67rem;
  line-height: 1.45;
}

/* Short desktop displays: preserve a single no-scroll viewport. */
@media (min-width: 761px) and (max-height: 690px) {
  .login-card {
    height: calc(100dvh - 20px);
    min-height: 0;
  }

  .login-brand-panel,
  .login-action-panel {
    padding-block: 24px;
  }

  .brand-logo-shell {
    width: 50px;
    height: 50px;
    flex-basis: 50px;
    border-radius: 15px;
  }

  .login-title {
    font-size: clamp(1.8rem, 3vw, 2.55rem);
    margin-bottom: 10px;
  }

  .login-subtitle {
    line-height: 1.5;
  }

  .login-feature-list {
    gap: 6px;
    margin-top: 14px;
  }

  .login-feature-list li {
    min-height: 29px;
    font-size: 0.78rem;
  }

  .action-title {
    font-size: 1.7rem;
  }

  .action-copy {
    margin-bottom: 16px;
    line-height: 1.5;
  }

  .login-status {
    min-height: 31px;
    margin-block: 5px;
  }

  .login-notice {
    padding-block: 10px;
  }

  .return-home-link {
    margin-top: 12px;
  }

  .login-privacy-note {
    margin-top: 11px;
  }
}

/* Tablet and phone: compact stacked card, still locked to the viewport. */
@media (max-width: 760px) {
  .login-viewport {
    padding: 8px;
  }

  .login-card {
    width: 100%;
    height: calc(100dvh - 16px);
    min-height: 0;
    border-radius: 22px;
  }

  .login-grid {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(178px, 0.72fr) minmax(0, 1.28fr);
  }

  .login-brand-panel {
    gap: 10px;
    padding: 20px 22px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.17);
  }

  .login-brand-header {
    flex-wrap: nowrap;
  }

  .brand-logo-shell {
    width: 45px;
    height: 45px;
    flex-basis: 45px;
    border-radius: 14px;
  }

  .role-pill {
    min-height: 30px;
    padding: 0.36rem 0.64rem;
    font-size: 0.68rem;
  }

  .brand-kicker {
    margin-bottom: 5px;
    font-size: 0.65rem;
  }

  .login-title {
    max-width: none;
    margin-bottom: 7px;
    font-size: clamp(1.45rem, 6.1vw, 2rem);
  }

  .login-subtitle {
    display: -webkit-box;
    overflow: hidden;
    font-size: 0.78rem;
    line-height: 1.42;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .login-feature-list,
  .brand-footnote {
    display: none;
  }

  .login-action-panel {
    justify-content: center;
    padding: 20px 22px;
  }

  .login-action-content {
    max-width: 460px;
  }

  .access-eyebrow {
    margin-bottom: 6px;
    font-size: 0.65rem;
  }

  .action-title {
    margin-bottom: 7px;
    font-size: clamp(1.35rem, 5.6vw, 1.82rem);
  }

  .action-copy {
    margin-bottom: 13px;
    font-size: 0.79rem;
    line-height: 1.45;
  }

  .google-btn {
    min-height: 46px;
  }

  .login-status {
    min-height: 28px;
    margin-block: 4px;
    font-size: 0.75rem;
  }

  .login-notice {
    grid-template-columns: 31px minmax(0, 1fr);
    gap: 9px;
    padding: 10px 11px;
  }

  .notice-icon {
    width: 30px;
    height: 30px;
    border-radius: 9px;
  }

  .login-notice strong {
    font-size: 0.77rem;
  }

  .login-notice p {
    display: -webkit-box;
    overflow: hidden;
    font-size: 0.7rem;
    line-height: 1.38;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .return-home-link {
    margin-top: 10px;
    font-size: 0.75rem;
  }

  .login-privacy-note {
    display: none;
  }
}

@media (max-width: 430px) and (max-height: 720px) {
  .login-grid {
    grid-template-rows: minmax(152px, 0.62fr) minmax(0, 1.38fr);
  }

  .login-brand-panel {
    padding: 15px 18px;
  }

  .login-action-panel {
    padding: 16px 18px;
  }

  .login-title {
    font-size: 1.38rem;
  }

  .login-subtitle {
    -webkit-line-clamp: 1;
  }

  .action-copy {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .login-notice p {
    -webkit-line-clamp: 1;
  }
}

@media (max-height: 540px) {
  .login-card {
    height: calc(100dvh - 10px);
  }

  .login-viewport {
    padding: 5px;
  }

  .login-feature-list,
  .brand-footnote,
  .login-privacy-note {
    display: none;
  }

  .login-brand-panel,
  .login-action-panel {
    padding-block: 14px;
  }

  .login-title {
    font-size: 1.7rem;
  }

  .login-subtitle,
  .action-copy {
    font-size: 0.75rem;
    line-height: 1.35;
  }

  .login-notice {
    padding-block: 8px;
  }
}

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