/* Shared STEM MATRIX visual system. Loaded after page styles so every route
   uses the homepage palette, typography, navigation, forms, and surfaces. */
:root {
  color-scheme: light;
  --sm-green: #0b8f43;
  --sm-green-dark: #087f3b;
  --sm-green-soft: #eaf8ee;
  --sm-ink: #10251b;
  --sm-muted: #607268;
  --sm-line: #dcebdd;
  --sm-page: #f7fff5;
  --sm-white: #fff;
  --sm-shadow: 0 18px 50px rgba(16, 37, 27, .08);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: var(--sm-white) !important; color: var(--sm-ink); color-scheme: light !important; scroll-behavior: smooth; }
body {
  margin: 0 !important;
  padding: 0 !important;
  display: block !important;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--sm-white) !important;
  color: var(--sm-ink) !important;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif !important;
  line-height: 1.6;
}
body::before { pointer-events: none; }
::selection { color: var(--sm-ink); background: #c9f1d3; }

nav {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background: rgba(255, 255, 255, .94) !important;
  border-bottom: 1px solid var(--sm-line) !important;
  box-shadow: 0 8px 24px rgba(16, 37, 27, .04) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
nav .nav {
  width: min(1200px, 100%);
  min-height: 72px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--sm-ink); text-decoration: none; font-weight: 900; }
.brand img, .nav > img { display: block; width: 54px !important; height: 54px; object-fit: contain; border-radius: 12px; }
.brand span { color: var(--sm-ink); letter-spacing: .02em; }
.navlinks, .links { display: flex; align-items: center; justify-content: center; gap: 20px; }
.navlinks a, .links a, nav a:not(.btn):not(.button):not(.outline) { color: var(--sm-muted); text-decoration: none; font-weight: 700; }
.navlinks a:hover, .links a:hover, nav a:not(.btn):not(.button):not(.outline):hover { color: var(--sm-green-dark); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
a { color: var(--sm-green-dark); }

.btn, .button, button.btn, input[type="submit"] {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--sm-green) !important;
  border-radius: 12px;
  background: var(--sm-green) !important;
  color: var(--sm-white) !important;
  font: inherit;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(11, 143, 67, .14) !important;
  transition: background-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.btn:hover, .button:hover, button.btn:hover, input[type="submit"]:hover { background: var(--sm-green-dark) !important; transform: translateY(-1px); }
.btn:disabled, button:disabled, input[type="submit"]:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.outline {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 9px 14px;
  border: 1px solid var(--sm-line) !important;
  border-radius: 12px;
  background: var(--sm-white) !important;
  color: var(--sm-green-dark) !important;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}
.outline:hover { background: var(--sm-green-soft) !important; border-color: #b9dfc2 !important; }

main { width: min(1100px, 100%); margin: 0 auto; padding: clamp(28px, 5vw, 64px) 20px; }
main.paper { width: min(920px, 100%); }
main.wrap { width: min(820px, 100%); }
main.card { width: min(560px, calc(100% - 32px)); margin: clamp(24px, 7vh, 76px) auto; padding: clamp(24px, 5vw, 42px); }
.paper, .panel, main.card, .person, .webinar-dialog, .admin-card, .teacher-stat, .teacher-live, .admin-overview-note {
  background: var(--sm-white) !important;
  color: var(--sm-ink) !important;
  border: 1px solid var(--sm-line) !important;
  border-radius: 22px;
  box-shadow: var(--sm-shadow) !important;
}
.paper, .panel { padding: clamp(24px, 5vw, 48px); }
h1, h2, h3, h4 { color: var(--sm-ink); line-height: 1.2; }
h1 { letter-spacing: -.035em; }
h2, h3 { letter-spacing: -.02em; }
p, li { color: inherit; }
.eyebrow, .kicker, .section-label { color: var(--sm-green-dark) !important; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.muted, .small, .lead { color: var(--sm-muted) !important; }

input, select, textarea {
  max-width: 100%;
  border: 1px solid #cbd8ce !important;
  border-radius: 11px !important;
  background: var(--sm-white) !important;
  color: var(--sm-ink) !important;
  font: inherit !important;
}
input:focus, select:focus, textarea:focus { outline: 3px solid rgba(11, 143, 67, .14) !important; border-color: var(--sm-green) !important; }
label { color: var(--sm-ink); font-weight: 750; }
.error, .admin-error, .webinar-error { color: #9f251b !important; }
.success, .admin-success { color: var(--sm-green-dark) !important; }

.team, .card-grid, .admin-card-grid, .teacher-grid { gap: 16px; }
.person, .card, .heroCard, .contact-card, .stat, .cta, .teacher-stat, .teacher-live, .admin-card, .admin-overview-note {
  color: var(--sm-ink) !important;
  background: var(--sm-white) !important;
  border: 1px solid var(--sm-line) !important;
  box-shadow: var(--sm-shadow) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
.card p, .contact-card p, .cta p, .webinar-dialog p, .teacher-stat p, .admin-card span { color: var(--sm-muted) !important; }
.hero:before { background: linear-gradient(135deg, #f4fff5, #e8f8ec) !important; border-color: var(--sm-line) !important; box-shadow: var(--sm-shadow) !important; }
.pill { color: var(--sm-green-dark) !important; background: var(--sm-green-soft) !important; border-color: var(--sm-line) !important; }
.price, .stat strong, .check b, .contact-card h3, .contact-card a { color: var(--sm-green-dark) !important; }
.cta { background: linear-gradient(135deg, #effbf1, #fff) !important; }
.cta h2, .cta a:not(.btn) { color: var(--sm-ink) !important; }

.webinar-modal { background: rgba(7, 31, 16, .42) !important; backdrop-filter: blur(8px); }
.webinar-dialog {
  color: var(--sm-ink) !important;
  background: var(--sm-white) !important;
  border-color: var(--sm-line) !important;
  box-shadow: 0 24px 70px rgba(16, 37, 27, .18) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
.webinar-dialog input, .webinar-dialog select, .webinar-dialog textarea { color: var(--sm-ink) !important; background: var(--sm-white) !important; border-color: #cbd8ce !important; }
.webinar-close { color: var(--sm-muted) !important; }
.webinar-details { color: var(--sm-ink) !important; background: var(--sm-page) !important; border-color: var(--sm-line) !important; }
.webinar-details p { color: var(--sm-ink) !important; }

body.dashboard-page { min-height: 100vh !important; background: var(--sm-page) !important; color: var(--sm-ink) !important; }
body.dashboard-page::before { display: none !important; }
body.dashboard-page > nav { display: block !important; }
body.dashboard-page > footer { display: block !important; }
body.dashboard-page .webinar-dialog {
  color: var(--sm-ink) !important;
  background: var(--sm-white) !important;
  border-color: var(--sm-line) !important;
  box-shadow: var(--sm-shadow) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
body.dashboard-page .webinar-dialog h2, body.dashboard-page .webinar-dialog h3 { color: var(--sm-ink) !important; }
body.dashboard-page .webinar-dialog p, body.dashboard-page .webinar-dialog small { color: var(--sm-muted) !important; }
body.dashboard-page .webinar-dialog input, body.dashboard-page .webinar-dialog select, body.dashboard-page .webinar-dialog textarea {
  color: var(--sm-ink) !important; background: var(--sm-white) !important; border-color: #cbd8ce !important;
}
body.dashboard-page .admin-card, body.dashboard-page .teacher-stat, body.dashboard-page .teacher-live, body.dashboard-page .admin-overview-note {
  color: var(--sm-ink) !important; background: var(--sm-white) !important; border-color: var(--sm-line) !important; box-shadow: none !important;
}
body.dashboard-page .teacher-row { border-bottom-color: var(--sm-line) !important; }
body.dashboard-page .admin-table th { color: var(--sm-ink); background: var(--sm-green-soft); }
body.dashboard-page .admin-table th, body.dashboard-page .admin-table td { border-bottom-color: var(--sm-line) !important; }
body.dashboard-page .admin-status { color: var(--sm-muted); }

.admin-table-wrap { max-width: 100%; overflow-x: auto; }
.admin-table { color: var(--sm-ink); }
footer {
  margin-top: 48px;
  padding: 28px 20px;
  border-top: 1px solid var(--sm-line) !important;
  background: #fbfffb;
  color: var(--sm-muted) !important;
  text-align: center;
  font-size: 13px;
}
footer a { color: var(--sm-green-dark); text-decoration: none; font-weight: 700; }
footer a:hover { text-decoration: underline; }

@media (max-width: 760px) {
  nav .nav { min-height: 64px; gap: 10px; padding: 9px 14px; flex-wrap: wrap; }
  .brand img, .nav > img { width: 46px !important; height: 46px; }
  .navlinks, .links { gap: 12px; flex-wrap: wrap; }
  .navlinks a, .links a { font-size: 13px; }
  .nav-actions { flex-wrap: wrap; }
  main { padding: 28px 14px; }
  .admin-dashboard-nav { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
  .teacher-grid, .admin-card-grid { grid-template-columns: 1fr !important; }
}
@media (max-width: 480px) {
  nav .nav { justify-content: center; }
  .brand { margin-right: auto; }
  .navlinks { order: 3; width: 100%; justify-content: space-between; }
  .nav-actions { margin-left: auto; }
  .btn, .button, .outline { min-height: 40px; padding: 8px 11px; font-size: 13px; }
  main.card { width: calc(100% - 24px); margin: 24px auto; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}