/* Shared clean visual system for the secondary STANAG pages.
   Kept separate from the legacy template and lesson-specific styles. */
:root {
  --site-ink: #0c2345;
  --site-ink-2: #17365d;
  --site-muted: #5b6d86;
  --site-blue: #155fe8;
  --site-blue-dark: #0b4fc8;
  --site-gold: #f0b52f;
  --site-paper: #f5f7fb;
  --site-white: #fff;
  --site-line: #dce3ec;
  --site-focus: #075de8;
  --site-shadow: 0 14px 38px rgba(12, 35, 69, .075);
}

.topics-listing-page,
.site-public-materials,
.reservation-page {
  color: var(--site-ink);
  background: var(--site-paper);
  font-family: "DM Sans", Manrope, "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.topics-listing-page *,
.site-public-materials *,
.reservation-page * { box-sizing: border-box; }

.topics-listing-page a,
.site-public-materials a,
.reservation-page a { text-underline-offset: .2em; }

.topics-listing-page :focus-visible,
.site-public-materials :focus-visible,
.reservation-page :focus-visible {
  outline: 3px solid var(--site-focus) !important;
  outline-offset: 3px;
}

/* Student account and real course progress */
.topics-listing-page {
  min-height: 100vh;
  background: var(--site-paper) !important;
}

.topics-listing-page .navbar,
.topics-listing-page .sticky-wrapper.is-sticky .navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 76px;
  padding: 8px 0;
  background: rgba(255, 255, 255, .97) !important;
  border-bottom: 1px solid var(--site-line);
  box-shadow: 0 4px 18px rgba(12, 35, 69, .045);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.topics-listing-page .navbar .container {
  width: min(1280px, calc(100% - 40px));
  max-width: 1280px;
  min-height: 58px;
  margin-inline: auto;
}

.topics-listing-page .navbar-brand img {
  display: block;
  width: 58px;
  height: 58px;
  max-width: 58px !important;
  margin-right: 0 !important;
  object-fit: contain;
  border-radius: 50%;
}
.topics-listing-page .navbar-brand,
.site-public-materials .navbar-brand { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; }

.topics-listing-page .site-wordmark,
.site-public-materials .site-wordmark {
  display: grid;
  color: var(--site-ink);
  line-height: 1;
}
.topics-listing-page .site-wordmark strong,
.site-public-materials .site-wordmark strong { font-size: 17px; font-weight: 800; letter-spacing: -.03em; }
.topics-listing-page .site-wordmark span,
.site-public-materials .site-wordmark span { margin-top: 5px; color: var(--site-muted); font-size: 11px; font-weight: 750; letter-spacing: .12em; }

.topics-listing-page .navbar-toggler {
  border: 1px solid var(--site-line);
  border-radius: 10px;
  padding: 8px 10px;
  box-shadow: none;
}

.topics-listing-page .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(21, 95, 232, .16); }
.topics-listing-page .navbar-toggler-icon,
.site-public-materials .navbar-toggler-icon {
  position: relative;
  width: 22px;
  height: 22px;
  background: transparent !important;
}
.topics-listing-page .navbar-toggler-icon::before,
.site-public-materials .navbar-toggler-icon::before,
.topics-listing-page .navbar-toggler-icon::after,
.site-public-materials .navbar-toggler-icon::after {
  position: absolute;
  right: 1px;
  left: 1px;
  height: 2px;
  border-radius: 2px;
  background: var(--site-ink);
  content: "";
}
.topics-listing-page .navbar-toggler-icon::before,
.site-public-materials .navbar-toggler-icon::before { top: 6px; box-shadow: 0 6px 0 var(--site-ink); }
.topics-listing-page .navbar-toggler-icon::after,
.site-public-materials .navbar-toggler-icon::after { top: 18px; }

.topics-listing-page .navbar-nav .nav-link {
  position: relative;
  padding: 12px 10px;
  color: var(--site-ink-2) !important;
  font-weight: 650;
  transition: color .18s ease;
}

.topics-listing-page .navbar-nav .nav-link::before {
  right: 10px;
  bottom: 4px;
  left: 10px;
  height: 2px;
  background: var(--site-blue);
}

.topics-listing-page .navbar-nav .nav-link:hover,
.topics-listing-page .navbar-nav .nav-link:focus,
.topics-listing-page .navbar-nav .nav-link.active { color: var(--site-blue) !important; }

.topics-listing-page .navbar .dropdown-menu {
  padding: 7px;
  border: 1px solid var(--site-line);
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--site-shadow);
}

.topics-listing-page .navbar .dropdown-item {
  border-radius: 8px;
  color: var(--site-ink-2);
  font-weight: 600;
}

.topics-listing-page .navbar .dropdown-item:hover,
.topics-listing-page .navbar .dropdown-item:focus { color: var(--site-blue); background: #eff5ff; }

.topics-listing-page .page {
  width: min(1280px, calc(100% - 40px));
  margin: 28px auto 64px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.topics-listing-page .auth-wrap,
.topics-listing-page .top,
.topics-listing-page .filters-panel,
.topics-listing-page .block {
  border: 1px solid var(--site-line);
  border-radius: 18px;
  background: var(--site-white);
  box-shadow: 0 6px 20px rgba(12, 35, 69, .04);
}

.topics-listing-page .auth-wrap {
  display: grid;
  grid-template-columns: minmax(220px, .72fr) minmax(0, 1fr);
  align-items: start;
  justify-items: stretch;
  gap: 26px;
  overflow: visible;
  padding: clamp(20px, 3vw, 34px);
  text-align: left;
  background: #fff;
}

.topics-listing-page .auth-wrap::before,
.topics-listing-page .auth-wrap::after { display: none; }

.topics-listing-page .auth-summary {
  width: 100%;
  margin: 0;
  padding: 0;
  align-items: flex-start;
  gap: 18px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  animation: none;
}

.topics-listing-page .auth-title {
  color: var(--site-ink);
  font-size: clamp(21px, 2vw, 28px);
  letter-spacing: -.035em;
}

.topics-listing-page .auth-subtitle { max-width: 32ch; color: var(--site-muted); }
.topics-listing-page .auth-state-row { justify-items: start; }
.topics-listing-page .auth-state { color: var(--site-muted); text-align: left; }

.topics-listing-page .auth-refresh,
.topics-listing-page .auth-logout {
  border-color: var(--site-line);
  color: var(--site-ink-2);
  background: #f7f9fc;
  box-shadow: none;
}

.topics-listing-page .auth-refresh:hover,
.topics-listing-page .auth-logout:hover { border-color: #b7c9e3; color: var(--site-blue); background: #eff5ff; }

.topics-listing-page .auth-panel,
.topics-listing-page .billing-panel,
.topics-listing-page .device-panel {
  width: 100%;
  padding: 18px;
  border: 1px solid #e5eaf1;
  border-radius: 14px;
  background: #f8faff;
  box-shadow: none;
  animation: none;
}

.topics-listing-page .auth-switch {
  display: flex;
  width: 100%;
  padding: 4px;
  gap: 4px;
  border: 1px solid var(--site-line);
  border-radius: 11px;
  background: #eef2f8;
  box-shadow: none;
}

.topics-listing-page .auth-mode {
  min-width: 0;
  flex: 1 1 auto;
  min-height: 40px;
  padding: 6px 10px;
  border-radius: 8px;
  color: var(--site-ink-2);
  font-weight: 700;
}

.topics-listing-page .auth-mode.active {
  border-color: #d7e4fb;
  background: #fff;
  color: var(--site-blue);
  box-shadow: 0 2px 5px rgba(12, 35, 69, .08);
}

.topics-listing-page .auth-form-card { max-width: 100%; }
.topics-listing-page .auth-field { gap: 6px; }
.topics-listing-page .auth-field span { color: var(--site-ink-2); font-size: 13px; font-weight: 700; }

.topics-listing-page .auth-field input,
.topics-listing-page input,
.topics-listing-page select {
  min-height: 46px;
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  background: #fff;
  color: var(--site-ink);
  box-shadow: none;
}

.topics-listing-page .auth-field input:focus,
.topics-listing-page input:focus,
.topics-listing-page select:focus {
  border-color: var(--site-blue);
  outline: 3px solid rgba(21, 95, 232, .15);
  outline-offset: 1px;
}

.topics-listing-page .auth-btn,
.topics-listing-page .device-reset-btn {
  min-height: 44px;
  border: 1px solid var(--site-blue);
  border-radius: 9px;
  background: var(--site-blue);
  color: #fff;
  box-shadow: none;
  font-weight: 750;
  transition: background-color .16s ease, border-color .16s ease, transform .16s ease;
}

.topics-listing-page .auth-btn:hover,
.topics-listing-page .device-reset-btn:hover { transform: translateY(-1px); border-color: var(--site-blue-dark); background: var(--site-blue-dark); box-shadow: none; }
.topics-listing-page .auth-btn-secondary { border-color: var(--site-ink); background: var(--site-ink); }
.topics-listing-page .auth-link-btn { color: var(--site-blue); }
.topics-listing-page .auth-message { min-height: 1.4em; }

.topics-listing-page .top {
  padding: clamp(20px, 3vw, 30px);
  box-shadow: none;
}

.topics-listing-page .top h1 {
  color: var(--site-ink);
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: -.045em;
}

.topics-listing-page .top p { color: var(--site-muted); }
.topics-listing-page .totals { justify-content: flex-start; margin-top: 18px; }
.topics-listing-page .total { border-color: var(--site-line); background: #f6f8fc; color: var(--site-ink-2); }
.topics-listing-page .total strong { color: var(--site-blue); }
.topics-listing-page .total.is-complete { border-color: #aad6be; background: #edf8f1; color: #17613a; }
.topics-listing-page .total.is-complete strong { color: #17613a; }

.topics-listing-page .filters-panel {
  gap: 12px;
  padding: 16px 18px;
  box-shadow: none;
}

.topics-listing-page .filter-group { justify-content: flex-start !important; gap: 12px; }
.topics-listing-page .filter-label { color: var(--site-muted); }
.topics-listing-page .filter-buttons { gap: 7px; }
.topics-listing-page .filter-btn {
  min-height: 36px;
  border-color: #d7dfeb;
  border-radius: 8px;
  background: #fff;
  color: var(--site-ink-2);
}
.topics-listing-page .filter-btn:hover { border-color: #adc5ed; background: #f4f8ff; }
.topics-listing-page .filter-btn.active { border-color: var(--site-blue); background: var(--site-blue); color: #fff; }

.topics-listing-page .block {
  min-height: 0;
  overflow: clip;
  padding: 0;
  box-shadow: none;
}

.topics-listing-page .block-head {
  position: sticky;
  top: 84px;
  margin: 0;
  padding: 18px 18px 14px;
  border: 0;
  border-bottom: 1px solid var(--site-line);
  border-radius: 0;
  background: #fff;
  color: var(--site-ink);
  font-size: 20px;
  box-shadow: none;
}

.topics-listing-page .lesson-list { padding: 12px; gap: 7px; }
.topics-listing-page .skill-divider { border-radius: 7px; border-color: #e6ebf2; background: #f7f9fc; color: var(--site-ink-2); }
.topics-listing-page .lesson-link {
  min-height: 44px;
  gap: 9px;
  border: 1px solid #e1e7ef;
  border-left-width: 3px;
  border-radius: 9px;
  padding: 9px 10px;
  background: #fff;
  color: var(--site-ink-2);
  box-shadow: none;
  font-weight: 600;
}
.topics-listing-page .lesson-link:hover { border-color: #b6cae8; background: #f6f9ff; box-shadow: 0 2px 8px rgba(12, 35, 69, .05); }
.topics-listing-page .lesson-link.grammar { background: #f8fbff; }
.topics-listing-page .lesson-link.reading,
.topics-listing-page .lesson-link.listening,
.topics-listing-page .lesson-link.writing { background: #fff; }
.topics-listing-page .lesson-link.speaking { border-left-color: #96627a; background: #fbf7f9; color: #51283d; box-shadow: none; }
.topics-listing-page .lesson-link.speaking:hover { border-color: #c498ad; background: #fff9fc; }
.topics-listing-page .lesson-link.grammar::before,
.topics-listing-page .lesson-link.reading::before,
.topics-listing-page .lesson-link.listening::before,
.topics-listing-page .lesson-link.writing::before,
.topics-listing-page .lesson-link.speaking::before { width: 22px; height: 22px; font-size: 10px; }
.topics-listing-page .lesson-progress { border-color: #dce4ef; background: #f5f7fb; color: var(--site-muted); box-shadow: none; }
.topics-listing-page .lesson-progress.complete { border-color: #b7dec4; background: #edf8f1; color: #17613a; }
.topics-listing-page .lesson-link.is-complete { border-color: #b7dec4; background: #f4fbf6; border-left-color: #29875a; }
.topics-listing-page .lesson-link.locked { background: #f6f7f9; }
.topics-listing-page .billing-panel,
.topics-listing-page .device-panel { grid-column: 1 / -1; }

/* Public materials page */
.site-public-materials { min-height: 100vh; background: #fff; }
.site-public-materials { --mint: var(--site-blue); --mint-strong: var(--site-blue-dark); --mint-tint: rgba(21, 95, 232, .1); --ink: var(--site-ink); }
.site-public-materials main { overflow: clip; }

.site-public-materials .navbar,
.site-public-materials .sticky-wrapper.is-sticky .navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 8px 0;
  border-bottom: 1px solid var(--site-line);
  background: rgba(255, 255, 255, .97) !important;
  box-shadow: 0 4px 18px rgba(12, 35, 69, .045) !important;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

/* The legacy template positions its sticky wrapper over the first section.
   Put it back in document flow so the hero starts below the navigation. */
.site-public-materials .sticky-wrapper {
  position: relative;
  inset: auto;
  z-index: 1000;
}

.site-public-materials .navbar .container {
  width: min(1280px, calc(100% - 40px));
  max-width: 1280px;
  min-height: 62px;
}

.site-public-materials .navbar-brand img { width: 58px; height: 58px; max-width: 58px !important; object-fit: cover; border-radius: 50%; }
.site-public-materials .navbar-nav .nav-link { color: var(--site-ink-2) !important; font-weight: 650; }
.site-public-materials .navbar-nav .nav-link:hover,
.site-public-materials .navbar-nav .nav-link:focus,
.site-public-materials .navbar-nav .nav-link.active { color: var(--site-blue) !important; }
.site-public-materials .navbar-nav .nav-link::before { background: var(--site-blue); }
.site-public-materials .navbar .dropdown-menu { border: 1px solid var(--site-line); border-radius: 12px; background: #fff; box-shadow: var(--site-shadow); }
.site-public-materials .navbar .dropdown-item { color: var(--site-ink-2); }
.site-public-materials .navbar .dropdown-item:hover,
.site-public-materials .navbar .dropdown-item:focus { color: var(--site-blue); background: #eff5ff; }
.site-public-materials .navbar-toggler { border-color: var(--site-line); }
.site-public-materials .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(21, 95, 232, .16); }
.site-public-materials .ses-materials-icon { color: var(--site-blue); animation: none !important; box-shadow: none !important; }
/* The legacy script auto-opens this info panel on every page load. Keep the
   account icon's direct link, but avoid covering the page content on entry. */
.site-public-materials .ses-navpop-panel { display: none !important; }

.site-public-materials .site-header {
  min-height: 0;
  padding: clamp(64px, 8vw, 112px) 0 clamp(54px, 7vw, 88px) !important;
  overflow: hidden;
  background: #f5f8fd !important;
  color: var(--site-ink);
}

.site-public-materials .site-header::before { display: none; }
.site-public-materials .site-header .container { width: min(1200px, calc(100% - 48px)); }
.site-public-materials .site-header h2 { color: var(--site-ink) !important; font-size: clamp(42px, 7vw, 74px); font-weight: 800; letter-spacing: -.055em; line-height: 1.02; text-shadow: none !important; }
.site-public-materials .site-header .breadcrumb { border: 1px solid var(--site-line); border-radius: 999px; background: #fff; box-shadow: 0 2px 8px rgba(12, 35, 69, .04); backdrop-filter: none; }
.site-public-materials .site-header nav[aria-label="breadcrumb"] .breadcrumb *,
.site-public-materials .site-header nav[aria-label="breadcrumb"] .breadcrumb { color: var(--site-ink-2) !important; font-size: 13px; text-shadow: none !important; }
.site-public-materials .site-header nav[aria-label="breadcrumb"] .breadcrumb-item.active { color: var(--site-muted) !important; }
.site-public-materials .site-header nav[aria-label="breadcrumb"] .breadcrumb-item + .breadcrumb-item::before { color: #91a0b5 !important; }
.site-public-materials .site-header .custom-btn.custom-border-btn { border: 1px solid #c9d6e9 !important; border-radius: 9px; background: #fff; color: var(--site-blue) !important; box-shadow: none; backdrop-filter: none; font-weight: 700; }
.site-public-materials .site-header .custom-btn.custom-border-btn:hover { border-color: var(--site-blue) !important; background: #eff5ff; color: var(--site-blue-dark) !important; transform: translateY(-1px); box-shadow: none; }

.site-public-materials #topics-detail,
.site-public-materials .ses-white-section { padding-block: clamp(56px, 7vw, 96px); }
.site-public-materials #topics-detail { background: #fff; }
.site-public-materials .ses-white-section { background: #f7f9fc; }
.site-public-materials .ses-white-section::before { display: none; }
.site-public-materials .section-title,
.site-public-materials #topics-detail .section-title,
.site-public-materials .section-padding .section-title { color: var(--site-ink); font-size: clamp(32px, 4.3vw, 48px); font-weight: 800; letter-spacing: -.045em; line-height: 1.08; text-shadow: none; }
.site-public-materials .section-lead { max-width: 70ch; margin-inline: auto; color: var(--site-muted); font-size: clamp(16px, 1.6vw, 19px); line-height: 1.7; }
.site-public-materials #materialsTab.glass-nav { gap: 8px; border: 0; }
.site-public-materials #materialsTab .nav-link {
  min-height: 46px;
  padding: .68rem 1rem;
  border: 1px solid var(--site-line);
  border-radius: 9px;
  background: #fff;
  color: var(--site-ink-2);
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  font-weight: 700;
  transition: border-color .16s ease, background-color .16s ease, color .16s ease;
}
.site-public-materials #materialsTab .nav-link:hover { transform: none; border-color: #b8c9e2; background: #f5f8ff; color: var(--site-blue); box-shadow: none; }
.site-public-materials #materialsTab .nav-link.active { border-color: var(--site-blue); background: var(--site-blue); color: #fff; box-shadow: 0 5px 12px rgba(21, 95, 232, .16); }
.site-public-materials #materialsTab .nav-link.active:hover { border-color: var(--site-blue-dark); background: var(--site-blue-dark); color: #fff; }
.site-public-materials #materialsTab .nav-link i { margin-right: .45rem; }
.site-public-materials .glass-card,
.site-public-materials .materials-tabs,
.site-public-materials .materials-cta { border: 1px solid var(--site-line); border-radius: 18px !important; background: #fff; box-shadow: 0 8px 26px rgba(12, 35, 69, .055); -webkit-backdrop-filter: none; backdrop-filter: none; }
.site-public-materials .materials-tabs { padding: clamp(20px, 4vw, 48px) !important; }
.site-public-materials .materials-tabs .tab-title,
.site-public-materials .materials-cta h3 { color: var(--site-ink); font-weight: 800; letter-spacing: -.035em; }
.site-public-materials .materials-tabs .tab-lead,
.site-public-materials .materials-tabs .tab-list li { color: var(--site-muted); }
.site-public-materials .materials-tabs .tab-list i { color: var(--site-blue); }
.site-public-materials .materials-tabs .pill { border-color: #d9e5fa; background: #f0f5ff; color: var(--site-blue-dark); }
.site-public-materials .materials-shot { border: 1px solid var(--site-line); border-radius: 14px; box-shadow: 0 8px 22px rgba(12, 35, 69, .08); }
.site-public-materials .materials-cta .glass-btn,
.site-public-materials .custom-btn:not(.custom-border-btn) { border: 1px solid var(--site-blue); border-radius: 9px; background: var(--site-blue); color: #fff; box-shadow: none; font-weight: 700; }
.site-public-materials .materials-cta .glass-btn:hover,
.site-public-materials .custom-btn:not(.custom-border-btn):hover { border-color: var(--site-blue-dark); background: var(--site-blue-dark); color: #fff; transform: translateY(-1px); }
.site-public-materials .materials-carousel .carousel-control-prev,
.site-public-materials .materials-carousel .carousel-control-next { opacity: 1; }
.site-public-materials .materials-carousel .carousel-control-prev-icon,
.site-public-materials .materials-carousel .carousel-control-next-icon { border-radius: 50%; background-color: var(--site-blue); box-shadow: 0 4px 12px rgba(12, 35, 69, .18); }
.site-public-materials .materials-carousel .carousel-indicators .active { background-color: var(--site-blue); }
.site-public-materials .topic-card { border: 1px solid var(--site-line); border-radius: 14px; background: #fff; box-shadow: 0 5px 16px rgba(12, 35, 69, .045); }
.site-public-materials .topic-card:hover { transform: translateY(-2px); border-color: #c5d5ee; box-shadow: 0 10px 24px rgba(12, 35, 69, .08); }
.site-public-materials .carousel-mask { overflow: visible !important; }
.site-public-materials .carousel-track-wrapper,
.site-public-materials .carousel-track { display: block !important; width: 100% !important; animation: none !important; transform: none !important; }
.site-public-materials .topic-cards-group { display: grid !important; width: 100%; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.site-public-materials .topic-cards-group + .topic-cards-group { display: none !important; }
.site-public-materials .topic-cards-group > .topic-card { min-width: 0 !important; margin: 0 !important; }
.site-public-materials .materials-lightbox .mlb-dialog { border: 1px solid var(--site-line); border-radius: 16px; box-shadow: var(--site-shadow); }
.site-public-materials .site-footer { padding-block: 56px 30px; background: var(--site-ink) !important; color: #eaf0f8; }
.site-public-materials .site-footer-title { color: #fff; }
.site-public-materials .site-footer-link { color: #cfdaea; }
.site-public-materials .site-footer-link:hover { color: #fff; }

.site-public-materials .ses-navpop-panel { border-color: #dce3ec; border-radius: 12px; background: #fff; box-shadow: var(--site-shadow); backdrop-filter: none; }
.site-public-materials .ses-navpop-title { color: var(--site-ink); }
.site-public-materials .ses-navpop-title i { background: var(--site-blue); box-shadow: none; }
.site-public-materials .ses-navpop-btn { border-radius: 8px; }
.site-public-materials .ses-navpop-btn.primary { border-color: var(--site-blue); background: var(--site-blue); box-shadow: none; }

/* Booking calendar */
.reservation-page {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  overflow-x: clip;
  background: var(--site-paper) !important;
}

.reservation-page main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding-block: clamp(44px, 7vw, 84px) !important;
}

.reservation-page main > .row { margin-bottom: clamp(24px, 4vw, 42px) !important; }
.reservation-page main h2 { margin: 20px 0 10px; color: var(--site-ink) !important; font-size: clamp(34px, 5vw, 52px); font-weight: 800; letter-spacing: -.05em; line-height: 1.08; text-shadow: none; }
.reservation-page .lead { color: var(--site-muted) !important; font-size: clamp(17px, 2vw, 20px); text-shadow: none; }
.reservation-page .text-white.fw-semibold { border: 1px solid var(--site-line); border-radius: 12px !important; background: #fff !important; color: var(--site-ink-2) !important; box-shadow: 0 4px 14px rgba(12, 35, 69, .04); }
.reservation-page .btn-back { border: 1px solid #cbd7e7; border-radius: 9px; background: #fff; color: var(--site-blue); box-shadow: none; font-weight: 700; }
.reservation-page .btn-back:hover { border-color: var(--site-blue); background: #eff5ff; color: var(--site-blue-dark); }

.reservation-page #calendar {
  max-width: none;
  margin: 0 auto;
  padding: clamp(14px, 2.5vw, 28px);
  border: 1px solid var(--site-line);
  border-radius: 18px;
  background: #fff;
  box-shadow: var(--site-shadow);
}

.reservation-page .fc { color: var(--site-ink-2); }
.reservation-page .fc .fc-toolbar-title { color: var(--site-ink); font-size: clamp(19px, 2.2vw, 24px); font-weight: 750; letter-spacing: -.03em; }
.reservation-page .fc .fc-button-primary { border: 1px solid var(--site-blue); border-radius: 8px; background: var(--site-blue); box-shadow: none; color: #fff; font-weight: 700; }
.reservation-page .fc .fc-button-primary:hover,
.reservation-page .fc .fc-button-primary:focus { border-color: var(--site-blue-dark); background: var(--site-blue-dark); }
.reservation-page .fc .fc-button-primary:disabled { border-color: #cbd5e1; background: #e8edf4; color: #66758a; }
.reservation-page .fc .fc-button-primary:not(:disabled).fc-button-active { border-color: var(--site-ink); background: var(--site-ink); }
.reservation-page .fc .fc-col-header-cell-cushion,
.reservation-page .fc .fc-daygrid-day-number { color: var(--site-ink-2); text-decoration: none; }
.reservation-page .fc .fc-day-today { background: #f1f6ff !important; }
.reservation-page .fc .fc-scrollgrid,
.reservation-page .fc th,
.reservation-page .fc td { border-color: #e5eaf1; }
.reservation-page .fc .fc-event { border-color: var(--site-blue) !important; border-radius: 6px; background: var(--site-blue) !important; color: #fff !important; }
.reservation-page .fc-non-business { background: #f3f5f8 !important; }

.reservation-page .modal-content { overflow: hidden; border: 1px solid var(--site-line); border-radius: 16px; box-shadow: var(--site-shadow); }
.reservation-page .modal-header { border-bottom: 1px solid var(--site-line); background: #fff !important; color: var(--site-ink) !important; }
.reservation-page .modal-title { font-weight: 750; }
.reservation-page .modal-body { padding: 24px; }
.reservation-page .modal-body .form-label { color: var(--site-ink-2); font-weight: 650; }
.reservation-page .modal-body .form-control,
.reservation-page .modal-body .form-select { min-height: 46px; border-color: #cbd5e1; border-radius: 9px !important; }
.reservation-page .modal-body .form-control:focus,
.reservation-page .modal-body .form-select:focus { border-color: var(--site-blue); box-shadow: 0 0 0 3px rgba(21, 95, 232, .14); }
.reservation-page .btn.custom-btn { min-height: 46px; border: 1px solid var(--site-blue); border-radius: 9px; background: var(--site-blue); color: #fff; font-weight: 700; }
.reservation-page .btn.custom-btn:hover { border-color: var(--site-blue-dark); background: var(--site-blue-dark); }
.reservation-page footer { width: 100%; margin-top: auto; padding: 22px 20px; background: var(--site-ink); color: #d4deec; }
.reservation-page footer a { color: #fff !important; }

/* One quiet navigation system for the secondary student pages. */
.site-secondary-nav {
  min-height: 76px;
  padding: 8px 0 !important;
  border-bottom: 1px solid var(--site-line);
  background: rgba(255, 255, 255, .98) !important;
  box-shadow: 0 4px 18px rgba(12, 35, 69, .045) !important;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.site-secondary-nav .container {
  width: min(1280px, calc(100% - 40px));
  max-width: 1280px;
  min-height: 58px;
}

.site-secondary-nav .navbar-nav {
  align-items: center;
  gap: 4px;
}

.site-secondary-nav .navbar-nav .nav-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--site-ink-2) !important;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  text-transform: none !important;
  transition: color .16s ease, background-color .16s ease;
}

.site-secondary-nav .navbar-nav .nav-link::before { display: none; }
.site-secondary-nav .navbar-nav .nav-link:hover,
.site-secondary-nav .navbar-nav .nav-link:focus-visible,
.site-secondary-nav .navbar-nav .show > .nav-link { background: #f0f5fc; color: var(--site-blue) !important; }
.site-secondary-nav .navbar-nav .dropdown-toggle::after { margin-left: 8px; }
.site-secondary-nav .dropdown-menu { min-width: 210px; }
.site-secondary-nav .dropdown-item { min-height: 40px; display: flex; align-items: center; }
.site-secondary-nav .nav-cta {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-left: 10px;
  padding: 9px 16px;
  border: 1px solid var(--site-blue);
  border-radius: 9px;
  background: var(--site-blue);
  color: #fff !important;
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
  transition: background-color .16s ease, border-color .16s ease, transform .16s ease;
}
.site-secondary-nav .nav-cta:hover { transform: translateY(-1px); border-color: var(--site-blue-dark); background: var(--site-blue-dark); }

.site-public-materials .site-header {
  padding: clamp(42px, 5vw, 72px) 0 clamp(38px, 4vw, 58px) !important;
}
.site-public-materials .site-header .container { width: min(1200px, calc(100% - 48px)); }
.site-public-materials .site-header h1 {
  max-width: none;
  margin: 8px 0 0;
  color: var(--site-ink) !important;
  font-size: clamp(44px, 4.8vw, 58px);
  font-weight: 800;
  letter-spacing: -.045em;
  line-height: 1.04;
  text-shadow: none !important;
  text-wrap: balance;
  white-space: nowrap;
}
.site-public-materials #topics-detail .container { max-width: 1200px; }
.site-public-materials #topics-detail { padding-top: clamp(44px, 6vw, 76px); }

.reservation-topbar {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 8px max(20px, calc((100vw - 1200px) / 2));
  border-bottom: 1px solid var(--site-line);
  background: #fff;
}
.reservation-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--site-ink); text-decoration: none; }
.reservation-brand img { width: 48px; height: 48px; object-fit: cover; border-radius: 50%; }
.reservation-wordmark { display: grid; line-height: 1; }
.reservation-wordmark strong { font-size: 16px; font-weight: 800; letter-spacing: -.025em; }
.reservation-wordmark span { margin-top: 5px; color: var(--site-muted); font-size: 11px; font-weight: 750; letter-spacing: .12em; }
.reservation-home {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--site-blue);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.reservation-home:hover { background: #f0f5fc; color: var(--site-blue-dark); }
.reservation-page main { padding-top: clamp(34px, 5vw, 60px) !important; }
.reservation-page main h1 { margin: 20px 0 10px; color: var(--site-ink) !important; font-size: clamp(34px, 5vw, 52px); font-weight: 800; letter-spacing: -.045em; line-height: 1.08; text-shadow: none; text-wrap: balance; }

.site-public-materials :focus-visible,
.topics-listing-page :focus-visible,
.reservation-page :focus-visible { outline: 3px solid var(--site-focus) !important; outline-offset: 3px; }

@media (max-width: 991.98px) {
  .site-public-materials .topic-cards-group { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .site-secondary-nav .navbar-collapse { padding: 10px 0 4px; }
  .site-secondary-nav .navbar-nav { align-items: stretch; gap: 2px; }
  .site-secondary-nav .navbar-nav .nav-link { width: 100%; }
  .site-secondary-nav .nav-cta { width: 100%; margin: 8px 0 0; }
}

@media (max-width: 575.98px) {
  .site-secondary-nav .container { width: calc(100% - 28px); }
  .site-public-materials .site-header .container { width: calc(100% - 36px); }
  .site-public-materials .site-header h1 { margin-top: 8px; font-size: clamp(42px, 12vw, 54px); white-space: normal; }
  .reservation-topbar { min-height: 68px; padding-inline: 16px; }
  .reservation-brand img { width: 42px; height: 42px; }
  .reservation-home { padding-inline: 9px; font-size: 13px; }
  .site-public-materials .topic-cards-group { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .reservation-page main { width: calc(100% - 28px); }
  .reservation-page #calendar { padding: 10px; border-radius: 14px; }
  .reservation-page .fc .fc-toolbar { align-items: flex-start; gap: 10px; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .site-secondary-nav *,
  .reservation-topbar * { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

@media (max-width: 1020px) {
  .topics-listing-page .page { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .topics-listing-page .auth-wrap { grid-template-columns: 1fr; }
  .topics-listing-page .auth-summary { align-items: center; flex-direction: row; }
}

@media (max-width: 720px) {
  .topics-listing-page .navbar .container,
  .site-public-materials .navbar .container { width: calc(100% - 28px); }
  .topics-listing-page .navbar .navbar-collapse { padding: 12px 4px 8px; }
  .topics-listing-page .navbar-nav .nav-link { padding: 10px 8px; }
  .topics-listing-page .navbar-nav .nav-link::before { right: auto; left: 8px; width: 32px; }
  .topics-listing-page .page { width: calc(100% - 28px); margin-top: 16px; grid-template-columns: 1fr; gap: 14px; }
  .topics-listing-page .auth-wrap { padding: 18px; gap: 18px; }
  .topics-listing-page .auth-summary { align-items: stretch; flex-direction: column; }
  .topics-listing-page .auth-state-row { justify-items: start; }
  .topics-listing-page .auth-panel,
  .topics-listing-page .billing-panel,
  .topics-listing-page .device-panel { padding: 14px; }
  .topics-listing-page .auth-switch { align-items: stretch; flex-direction: row; flex-wrap: wrap; }
  .topics-listing-page .auth-mode { min-width: 112px; flex: 1 1 112px; }
  .topics-listing-page .filter-group { align-items: flex-start; }
  .topics-listing-page .filter-label { min-width: 100%; }
  .topics-listing-page .filter-buttons { width: 100%; }
  .topics-listing-page .filter-btn { flex: 0 0 auto; }
  .topics-listing-page .block-head { top: 76px; }

  .site-public-materials .site-header .container { width: calc(100% - 36px); }
  .site-public-materials .site-header { padding-block: 86px 54px !important; }
  .site-public-materials .site-header h2 { font-size: clamp(42px, 13vw, 60px); }
  .site-public-materials .site-header nav[aria-label="breadcrumb"] { display: none; }
  .site-public-materials #materialsTab.glass-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; }
  .site-public-materials #materialsTab .nav-item,
  .site-public-materials #materialsTab .nav-link { width: 100%; }
  .site-public-materials #topics-detail,
  .site-public-materials .ses-white-section { padding-block: 52px; }
  .site-public-materials .materials-tabs { padding: 20px !important; }
  .site-public-materials .site-footer { padding-top: 44px; }

  .reservation-page main { width: calc(100% - 28px); padding-block: 34px !important; }
  .reservation-page #calendar { padding: 10px; border-radius: 13px; }
  .reservation-page .fc .fc-toolbar { align-items: flex-start; flex-direction: column; gap: 12px; }
  .reservation-page .fc .fc-toolbar-chunk { display: flex; flex-wrap: wrap; gap: 6px; }
  .reservation-page .fc .fc-button { padding: .35em .55em; font-size: .84em; }
  .reservation-page .fc .fc-col-header-cell-cushion,
  .reservation-page .fc .fc-daygrid-day-number { padding: 4px; font-size: .83em; }
}

@media (prefers-reduced-motion: reduce) {
  .topics-listing-page *, .site-public-materials *, .reservation-page * {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}