/* =============================================================================
   Stanford Ignite Ukraine 2026 — Knowledge Base
   ========================================================================== */

/* ---------- Design Tokens ------------------------------------------------- */
:root {
  /* Stanford identity */
  --cardinal: #8C1515;
  --cardinal-dark: #5E0E0E;
  --cardinal-light: #B83A3A;
  --cardinal-soft: #F5E6E6;

  /* Neutrals */
  --bg: #FAFAF8;
  --surface: #FFFFFF;
  --surface-2: #F4F2EC;
  --border: #E8E5DE;
  --border-strong: #D4D0C5;

  /* Text */
  --text: #2E2D29;
  --text-muted: #6B6B6B;
  --text-faint: #9C9A93;

  /* Accent */
  --warm: #F4C16C;
  --warm-soft: #FBF1DC;
  --link: #5E4B8B;

  /* Layout */
  --max-width: 1180px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04);
  --shadow: 0 2px 8px rgba(46,45,41,.06);
  --shadow-lg: 0 8px 24px rgba(46,45,41,.10);
  --transition: 180ms cubic-bezier(.4,0,.2,1);

  /* Typography */
  --font-sans: 'Source Sans 3', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Source Serif 4', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Menlo', monospace;
}

/* ---------- Reset --------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  font-weight: 400;
}
img { max-width: 100%; display: block; }
a { color: var(--cardinal); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--cardinal-dark); }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em 0; }

/* ---------- Header -------------------------------------------------------- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.site-header__notice {
  background: linear-gradient(90deg, #fbf1dc 0%, #faead0 100%);
  border-bottom: 1px solid #e8d4a3;
  color: #5a4416;
  font-size: .82rem;
  padding: 8px 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  text-align: center;
}
.site-header__notice-icon { font-size: .95rem; flex-shrink: 0; }
.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 36px 24px 22px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.brand__mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand__s {
  display: inline-grid;
  place-items: center;
  width: 36px; height: 36px;
  background: var(--cardinal);
  color: #fff;
  border-radius: 6px;
  font-weight: 800;
  font-size: 1.1rem;
}
.brand__title { color: var(--text); }
.brand__edition {
  font-size: .8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-left: 16px;
  border-left: 2px solid var(--border);
}
.brand__row {
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.brand__subtitle {
  color: var(--text-muted);
  font-size: 1rem;
}

/* Fundraiser pill in header */
.fundraiser-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 12px;
  background: linear-gradient(135deg, #FEF7E8 0%, #FBEBC8 100%);
  border: 1px solid #E8C77F;
  border-radius: var(--radius-pill);
  color: #5a4416 !important;
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}
.fundraiser-pill:hover {
  background: linear-gradient(135deg, #FBEBC8 0%, #F4D89A 100%);
  border-color: #d6a849;
  color: #4a3812 !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}
.fundraiser-pill__emoji { font-size: 1.05rem; }
.fundraiser-pill__arrow { opacity: .55; font-weight: 400; }

/* ---------- Password Gate ------------------------------------------------ */
.gate {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 24px;
  background: linear-gradient(135deg, var(--bg) 0%, #F0EBE0 100%);
}
.gate__card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px 40px 32px;
  width: 100%;
  max-width: 420px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.gate__card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--cardinal);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.gate__lock {
  font-size: 2.5rem;
  margin-bottom: 18px;
  filter: grayscale(.3);
}
.gate__title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.015em;
}
.gate__subtitle {
  color: var(--text-muted);
  font-size: .92rem;
  margin-bottom: 26px;
}
.gate__form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 10px;
}
.gate__form--shake { animation: shake .4s; }
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%,60% { transform: translateX(-6px); }
  40%,80% { transform: translateX(6px); }
}
.gate__input {
  font: inherit;
  font-size: 1rem;
  padding: 12px 16px;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition);
  text-align: center;
}
.gate__input:focus {
  outline: none;
  border-color: var(--cardinal);
  box-shadow: 0 0 0 3px rgba(140, 21, 21, 0.1);
}
.gate__btn {
  padding: 12px 20px;
  background: var(--cardinal);
  color: #fff;
  font-weight: 600;
  font-size: .95rem;
  border-radius: var(--radius);
  transition: var(--transition);
}
.gate__btn:hover { background: var(--cardinal-dark); transform: translateY(-1px); }
.gate__error {
  color: var(--cardinal);
  font-size: .85rem;
  font-weight: 600;
  margin: 4px 0 0;
}
.gate__hint {
  color: var(--text-faint);
  font-size: .8rem;
  margin: 14px 0 0;
}
.gate__footer {
  margin-top: 32px;
  font-size: .78rem;
  color: var(--text-muted);
  max-width: 480px;
  text-align: center;
  line-height: 1.5;
  padding: 0 20px;
}

/* ---------- Tabs ---------------------------------------------------------- */
.tabs {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.tabs__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs__inner::-webkit-scrollbar { display: none; }
.tab {
  position: relative;
  padding: 14px 16px;
  font-size: .95rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color var(--transition);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab--active {
  color: var(--cardinal);
  border-bottom-color: var(--cardinal);
  font-weight: 600;
}
.tab__icon { margin-right: 6px; opacity: .8; }
.tab__count {
  display: inline-block;
  margin-left: 6px;
  font-size: .75rem;
  background: var(--surface-2);
  color: var(--text-muted);
  padding: 1px 7px;
  border-radius: var(--radius-pill);
  font-weight: 600;
}
.tab--active .tab__count {
  background: var(--cardinal-soft);
  color: var(--cardinal);
}

/* ---------- Main container ------------------------------------------------ */
.main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px 80px;
}
.view { animation: fadeIn .3s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ---------- Overview view ------------------------------------------------- */
.overview-hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}
.overview-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--cardinal);
}
.overview-hero__intro {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 20px;
  max-width: 800px;
}
.overview-hero__body p {
  color: var(--text);
  margin-bottom: 14px;
  max-width: 760px;
}

.overview-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: var(--transition);
}
.stat-card:hover { border-color: var(--border-strong); transform: translateY(-1px); }
.stat-card__icon { font-size: 1.6rem; line-height: 1; }
.stat-card__label { font-weight: 600; color: var(--text); font-size: .95rem; }
.stat-card__sub { color: var(--text-muted); font-size: .8rem; margin-top: 2px; }

.overview-modules {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}
.module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  text-align: left;
  transition: var(--transition);
  cursor: pointer;
}
.module-card:hover {
  border-color: var(--cardinal-light);
  box-shadow: var(--shadow);
}
.module-card__flag { font-size: 1.6rem; margin-bottom: 10px; }
.module-card__title { font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
.module-card__sub { color: var(--text-muted); font-size: .9rem; margin-bottom: 14px; }
.module-card__action { color: var(--cardinal); font-weight: 600; font-size: .9rem; }
.module-card__action::after { content: ' →'; transition: var(--transition); }
.module-card:hover .module-card__action::after { margin-left: 4px; }

/* ---------- Filter bar ---------------------------------------------------- */
.filter-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin-bottom: 24px;
}
.filter-bar__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.filter-bar__label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  border-radius: var(--radius-pill);
  font-size: .85rem;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
}
.tag-chip:hover { border-color: var(--cardinal); }
.tag-chip--active {
  background: var(--cardinal);
  color: #fff;
  border-color: var(--cardinal);
}
.tag-chip__emoji { font-size: .9rem; }
.filter-bar__clear {
  margin-left: auto;
  font-size: .85rem;
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.filter-bar__clear:hover { color: var(--cardinal); }

.module-switch {
  display: inline-flex;
  background: var(--surface-2);
  border-radius: var(--radius-pill);
  padding: 3px;
  margin-bottom: 16px;
}
.module-switch__btn {
  padding: 6px 14px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--radius-pill);
  transition: var(--transition);
}
.module-switch__btn--active {
  background: var(--surface);
  color: var(--cardinal);
  box-shadow: var(--shadow-sm);
}

/* ---------- Day cards (By Day view) -------------------------------------- */
.day-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 16px;
  transition: var(--transition);
  scroll-margin-top: 120px;
}
.day-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}
.day-card__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.day-card__date {
  font-size: .75rem;
  font-weight: 700;
  color: var(--cardinal);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.day-card__module-badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: var(--surface-2);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-left: 8px;
}
.day-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.day-card__tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  font-size: .75rem;
  font-weight: 500;
  background: var(--surface-2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.day-card__title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.015em;
}
.day-card__title-en {
  color: var(--text-muted);
  font-size: .9rem;
  font-weight: 400;
  margin-bottom: 16px;
  font-style: italic;
}
.day-card__lecturer {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  margin-bottom: 16px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.lecturer-mini {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.lecturer-mini__photo {
  width: 48px; height: 48px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface-2);
  flex-shrink: 0;
}
.lecturer-mini__name {
  font-weight: 600;
  color: var(--text);
}
.lecturer-mini__title {
  font-size: .82rem;
  color: var(--text-muted);
  line-height: 1.3;
}
.lecturer-mini__link {
  margin-left: 8px;
  color: var(--text-muted);
  font-size: .85rem;
  transition: var(--transition);
}
.lecturer-mini:hover .lecturer-mini__link { color: var(--cardinal); }
.lecturer-mini:hover .lecturer-mini__name { color: var(--cardinal); }

/* Tooltip */
.lecturer-mini[data-tooltip] { position: relative; }
.lecturer-mini[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  background: var(--text);
  color: #fff;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: .8rem;
  line-height: 1.4;
  max-width: 320px;
  width: max-content;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
  z-index: 200;
  box-shadow: var(--shadow-lg);
}
.lecturer-mini[data-tooltip]:hover::after { opacity: 1; }

.day-card__summary {
  color: var(--text);
  font-size: .95rem;
  line-height: 1.6;
  margin-bottom: 18px;
}

/* Resources */
.resources {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px;
}
.resource-group {
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 10px 14px;
}
.resource-group__title {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.resource-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.resource-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  color: var(--text);
  font-size: .87rem;
  line-height: 1.3;
  border-radius: 4px;
}
.resource-link:hover { color: var(--cardinal); }
.resource-link__icon {
  flex-shrink: 0;
  width: 16px;
  text-align: center;
  opacity: .7;
}
.resource-link__name { flex: 1; }

/* ---------- Lecturer cards (By Lecturer view) --------------------------- */
.lecturers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.lecturer-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.lecturer-card:hover {
  border-color: var(--cardinal-light);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.lecturer-card__photo-wrap {
  margin-bottom: 16px;
}
.lecturer-card__photo {
  width: 96px; height: 96px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface-2);
  border: 3px solid var(--surface);
  box-shadow: 0 0 0 1px var(--border);
}
.lecturer-card__name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.lecturer-card__name-uk {
  font-size: .8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.lecturer-card__title {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 6px;
}
.lecturer-card__affiliation {
  font-size: .8rem;
  font-weight: 600;
  color: var(--cardinal);
  margin-bottom: 14px;
}
.lecturer-card__bio {
  font-size: .88rem;
  line-height: 1.55;
  color: var(--text);
  margin-bottom: 18px;
  flex: 1;
}
.lecturer-card__lectures {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: auto;
}
.lecturer-card__lectures-title {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.lecturer-card__lecture {
  display: block;
  padding: 4px 0;
  font-size: .85rem;
  color: var(--text);
  border-bottom: 1px dashed transparent;
}
.lecturer-card__lecture:hover {
  color: var(--cardinal);
  border-bottom-color: var(--cardinal);
}
.lecturer-card__profile-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--cardinal);
}
.lecturer-card__profile-link::after { content: '↗'; }

/* ---------- By Topic view ------------------------------------------------ */
.topic-section {
  margin-bottom: 32px;
}
.topic-section__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}
.topic-section__emoji {
  font-size: 1.6rem;
  display: inline-grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}
.topic-section__title {
  font-size: 1.35rem;
  font-weight: 700;
}
.topic-section__count {
  margin-left: auto;
  font-size: .85rem;
  color: var(--text-muted);
}
.topic-lectures {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.topic-lecture-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  transition: var(--transition);
  cursor: pointer;
}
.topic-lecture-card:hover {
  border-color: var(--cardinal-light);
  box-shadow: var(--shadow);
}
.topic-lecture-card__date {
  font-size: .72rem;
  color: var(--cardinal);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}
.topic-lecture-card__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.3;
}
.topic-lecture-card__lecturer {
  font-size: .82rem;
  color: var(--text-muted);
}

/* ---------- Organizers (Acknowledgements) -------------------------------- */
.organizers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}
.organizer-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  text-align: center;
  position: relative;
}
.organizer-card:hover {
  border-color: var(--cardinal-light);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.organizer-card__badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #FEF7E8 0%, #FBEBC8 100%);
  color: #5a4416;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: .72rem;
  font-weight: 700;
  border: 1px solid #E8C77F;
  white-space: nowrap;
}
.organizer-card__photo {
  width: 92px; height: 92px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface-2);
  border: 3px solid var(--surface);
  box-shadow: 0 0 0 1px var(--border);
  margin: 0 auto 16px;
}
.organizer-card__photo--initials {
  background: linear-gradient(135deg, var(--cardinal) 0%, var(--cardinal-dark) 100%);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 2rem;
  letter-spacing: 0.02em;
}
.organizer-card__name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.organizer-card__name-en {
  font-size: .78rem;
  color: var(--text-faint);
  margin-bottom: 8px;
}
.organizer-card__role {
  font-size: .85rem;
  color: var(--text);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 4px;
}
.organizer-card__affiliation {
  font-size: .78rem;
  color: var(--cardinal);
  font-weight: 600;
  margin-bottom: 14px;
}
.organizer-card__bio {
  font-size: .85rem;
  line-height: 1.55;
  color: var(--text);
  margin-bottom: 16px;
  flex: 1;
  text-align: left;
}
.organizer-card__links {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: auto;
}
.organizer-card__link {
  font-size: .82rem;
  font-weight: 600;
  color: var(--cardinal);
}

/* ---------- Classmates --------------------------------------------------- */
.classmates-intro {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 24px;
}
.classmates-intro h2 { margin-bottom: 8px; }
.classmates-intro p { color: var(--text-muted); margin: 0; }
.classmates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.classmate-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  text-align: center;
  position: relative;
}
.classmate-card__badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #FEF7E8 0%, #FBEBC8 100%);
  color: #5a4416;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: .72rem;
  font-weight: 700;
  border: 1px solid #E8C77F;
  white-space: nowrap;
}
.classmate-card:hover {
  border-color: var(--cardinal-light);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.classmate-card__photo {
  width: 96px; height: 96px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface-2);
  border: 3px solid var(--surface);
  box-shadow: 0 0 0 1px var(--border);
  margin: 0 auto 14px;
}
.classmate-card__photo--initials {
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--cardinal) 0%, var(--cardinal-dark) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 2rem;
  border: none;
}
.classmate-card__name { font-weight: 700; font-size: 1.1rem; margin-bottom: 2px; }
.classmate-card__name-en { color: var(--text-faint); font-size: .8rem; margin-bottom: 8px; }
.classmate-card__role {
  color: var(--cardinal);
  font-weight: 600;
  font-size: .82rem;
  line-height: 1.4;
  margin-bottom: 10px;
}
.classmate-card__desc { color: var(--text-muted); font-size: .85rem; margin-bottom: 16px; flex: 1; }
.classmate-card__links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: auto;
}
.classmate-card__cta {
  display: inline-block;
  padding: 8px 14px;
  background: var(--cardinal);
  color: #fff !important;
  font-size: .85rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: var(--transition);
}
.classmate-card__cta:hover { background: var(--cardinal-dark); color: #fff !important; }
.classmate-card__link {
  font-size: .82rem;
  font-weight: 600;
  color: var(--cardinal);
}
.classmate-card__socials {
  display: flex;
  gap: 8px;
  justify-content: center;
}
.classmate-card__social {
  display: inline-grid;
  place-items: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: .72rem;
  font-weight: 700;
  text-transform: lowercase;
  letter-spacing: 0;
  transition: var(--transition);
  text-decoration: none;
}
.classmate-card__social:hover {
  background: var(--cardinal);
  color: #fff;
  transform: translateY(-1px);
}
.classmates-empty {
  background: var(--surface-2);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  color: var(--text-muted);
}
.classmates-empty code {
  background: var(--surface);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
  font-size: .85em;
}

/* ---------- About -------------------------------------------------------- */
.about-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  margin-bottom: 24px;
}
.about-card h2 { margin-bottom: 16px; }
.about-author {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 20px 0;
}
.about-author__photo {
  width: 88px; height: 88px;
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 15%;       /* кроп на обличчя */
  background: var(--surface-2);
  border: 3px solid var(--surface);
  box-shadow: 0 0 0 1px var(--border), var(--shadow-sm);
  flex-shrink: 0;
}
.about-author__photo--initials {
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--cardinal) 0%, var(--cardinal-dark) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 1.6rem;
  border: none;
}
.about-author__info {
  flex: 1;
  min-width: 0;
}
.about-author__name { font-weight: 700; font-size: 1.1rem; line-height: 1.2; }
.about-author__name-uk { color: var(--text-faint); font-size: .85rem; margin-top: 2px; }
.about-author__title { color: var(--text-muted); font-size: .9rem; margin-top: 6px; line-height: 1.4; }
.about-author__location { color: var(--text-muted); font-size: .82rem; margin-top: 4px; }
.about-author__link {
  display: inline-block;
  margin-top: 8px;
  font-size: .82rem;
  font-weight: 600;
  color: var(--cardinal);
}

.fundraiser-card {
  background: linear-gradient(135deg, #FEF7E8 0%, #FBEBC8 100%);
  border: 1px solid #E8C77F;
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 24px;
}
.fundraiser-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.fundraiser-card__emoji { font-size: 1.4rem; }
.fundraiser-card__name { font-weight: 700; font-size: 1.15rem; color: #5a4416; }
.fundraiser-card__desc { color: #5a4416; margin-bottom: 16px; }
.fundraiser-card__goal {
  font-size: .85rem;
  color: #5a4416;
  margin-bottom: 16px;
  font-weight: 600;
}
.fundraiser-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.fundraiser-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background: var(--cardinal);
  color: #fff;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: .9rem;
  transition: var(--transition);
}
.fundraiser-card__cta:hover { background: var(--cardinal-dark); color: #fff; }
.fundraiser-card__card {
  font-family: var(--font-mono);
  font-size: .85rem;
  padding: 8px 14px;
  background: #fff;
  border: 1px solid #E8C77F;
  border-radius: var(--radius-pill);
  color: #5a4416;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.fundraiser-card__copy {
  font-size: .75rem;
  color: var(--cardinal);
  font-weight: 600;
  cursor: pointer;
}

/* ---------- Footer ------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  background: var(--surface);
  color: var(--text-muted);
  font-size: .85rem;
}
.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}
.site-footer a { color: var(--cardinal); }

/* ---------- Responsive --------------------------------------------------- */
@media (max-width: 768px) {
  h1 { font-size: 1.6rem; }
  h2 { font-size: 1.35rem; }
  .site-header__notice { padding: 7px 14px; font-size: .72rem; gap: 6px; line-height: 1.3; }
  .site-header__inner { padding: 24px 18px 18px; }
  .brand { gap: 12px; }
  .brand__mark { font-size: 1.2rem; }
  .brand__s { width: 30px; height: 30px; font-size: .95rem; }
  .brand__edition { font-size: .7rem; padding-left: 12px; }
  .brand__row { flex-direction: column; align-items: flex-start; gap: 10px; }
  .fundraiser-pill { font-size: .8rem; padding: 6px 12px; }
  .organizers-grid { grid-template-columns: 1fr; }
  .gate__card { padding: 32px 24px 24px; }
  .gate__title { font-size: 1.2rem; }

  .main { padding: 20px 16px 60px; }
  .overview-hero { padding: 24px 20px; }
  .overview-hero__intro { font-size: 1.05rem; }
  .overview-modules { grid-template-columns: 1fr; }
  .module-card { padding: 20px; }

  .day-card { padding: 18px 18px; }
  .day-card__title { font-size: 1.15rem; }
  .day-card__head { flex-direction: column; align-items: flex-start; gap: 8px; }

  .resources { grid-template-columns: 1fr; }
  .lecturer-mini { gap: 10px; }
  .lecturer-mini__photo { width: 40px; height: 40px; }
  .lecturer-mini[data-tooltip]::after {
    max-width: 260px;
    font-size: .75rem;
  }

  .lecturers-grid { grid-template-columns: 1fr; }
  .topic-lectures { grid-template-columns: 1fr; }

  .tabs__inner { padding: 0 16px; }
  .tab { padding: 12px 12px; font-size: .85rem; }

  .filter-bar { padding: 14px 16px; }
  .filter-bar__label { width: 100%; margin-bottom: 4px; }

  .about-card { padding: 22px 20px; }
  .fundraiser-card { padding: 22px 20px; }
}

@media (max-width: 480px) {
  .privacy-banner { font-size: .75rem; }
  .privacy-banner__inner { padding: 7px 14px; gap: 8px; }
  .brand__edition { display: none; }
  .day-card { padding: 16px 14px; }
  .stat-card { padding: 14px 16px; }
  .lecturer-card { padding: 20px; }
}

/* ---------- Utilities ---------------------------------------------------- */
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}