/* Math & Science Club. Loaded after ../assets/style.css (site tokens: --bg, --fg,
   --muted, --accent, --border, --card-bg; light and dark follow the system setting). */
:root {
  --club-navy: #1d3b66;
  --club-gold: #f2a900;
  --club-soft: #eef5ef;
  --club-warn-bg: #fff3d6; --club-warn-fg: #744800; --club-warn-bd: #e7c477;
  --club-red-bg: #fde8e6;  --club-red-fg: #8f1d14;  --club-red-bd: #efb1aa;
  --club-blue-bg: #e5eefb; --club-blue-fg: #1b4a8a;
  --club-on-accent: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --club-navy: #a9c8f5;
    --club-soft: #1b2a1d;
    --club-warn-bg: #3a2b0c; --club-warn-fg: #ffd58a; --club-warn-bd: #6b5220;
    --club-red-bg: #3b1714;  --club-red-fg: #ffb4ab; --club-red-bd: #6e2a24;
    --club-blue-bg: #14294a; --club-blue-fg: #a9c8f5;
    --club-on-accent: #10140c;
  }
}

/* the hidden attribute always wins over component display rules (buttons, rows) */
.club [hidden] { display: none !important; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--bg); color: var(--fg); padding: 0.5rem 0.8rem; z-index: 10; }
.skip-link:focus { left: 0.5rem; top: 0.5rem; }
.club :focus-visible { outline: 3px solid var(--club-gold); outline-offset: 2px; border-radius: 3px; }
.club a { color: var(--accent); }
.club nav a[aria-current="page"], .club nav a.is-active { color: var(--fg); font-weight: 600; }

/* section bar */
/* slim bar above the club bar: the way back to the main site */
.club-back-bar .wrap { padding-top: 0.45rem; padding-bottom: 0.45rem; }
.club-back { display: inline-flex; align-items: center; gap: 0.4rem; min-height: 2.25rem; font-weight: 600; color: var(--accent); text-decoration: none; }
.club-back:hover, .club-back:focus-visible { text-decoration: underline; }
.club-bar { background: var(--club-soft); border-bottom: 1px solid var(--border); }
.club-bar .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 1.2rem; padding-top: 0.7rem; padding-bottom: 0.7rem; }
.club-bar-name { font-weight: 700; color: var(--fg); text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem; }
.club-bar-name img { width: 28px; height: 28px; border-radius: 6px; }
.club-bar ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.2rem 1rem; margin: 0; padding: 0; }
.club-bar ul a { text-decoration: none; font-size: 0.95rem; }
.club-bar ul a:hover { text-decoration: underline; }
.club-bar ul a[aria-current="page"] { color: var(--fg); font-weight: 600; text-decoration: underline; text-underline-offset: 0.3em; }

/* hero */
.club-hero { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1.2rem 1.5rem; align-items: center; margin-bottom: 1.5rem; }
.club-logo { width: 120px; height: 120px; border-radius: 50%; }
@media (max-width: 560px) { .club-hero { grid-template-columns: minmax(0, 1fr); } .club-logo { width: 96px; height: 96px; } }
.club-kicker { text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.8rem; font-weight: 700; color: var(--accent); margin: 0 0 0.3rem; }
.club h1 { margin-bottom: 0.4rem; line-height: 1.2; }
.club-rule { margin: 0.6rem 0 0; font-size: 1.05rem; }

/* cards and panels */
.club-panel { border: 1px solid var(--border); background: var(--card-bg); border-radius: 12px; padding: 1.1rem 1.25rem; margin: 1.25rem 0; }
.club-panel > h2:first-child { margin-top: 0; }
.club-next { border: 2px solid var(--accent); background: var(--bg); border-radius: 14px; padding: 1.2rem 1.35rem; margin: 1.5rem 0; }
.club-next h2 { margin: 0 0 0.2rem; font-size: 1rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); }
.club-next-date { font-size: clamp(1.45rem, 1.1rem + 1.6vw, 2rem); font-weight: 800; margin: 0.1rem 0; line-height: 1.2; }
.club-next-meta { margin: 0.2rem 0 0.8rem; color: var(--muted); }
.club-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0.8rem 0 0; }

/* buttons and forms */
.club-btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; min-height: 2.75rem; padding: 0.55rem 1.1rem; border-radius: 8px;
  font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; border: 2px solid var(--accent); background: var(--accent); color: var(--club-on-accent) !important; }
.club-btn:hover { filter: brightness(1.08); }
.club-btn--ghost { background: transparent; color: var(--accent) !important; }
.club-btn--danger { background: transparent; border-color: var(--club-red-fg); color: var(--club-red-fg) !important; }
.club-btn--small { min-height: 2.25rem; padding: 0.3rem 0.75rem; font-size: 0.9rem; }
.club-btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.club-field { margin: 0 0 1rem; min-width: 0; border: 0; padding: 0; }
.club-field > label, .club-field > legend { display: block; font-weight: 700; margin-bottom: 0.3rem; padding: 0; }
.club input[type="text"], .club input[type="password"], .club input[type="date"], .club input[type="time"], .club input[type="number"], .club select, .club textarea {
  width: 100%; font: inherit; font-size: 1rem; padding: 0.55rem 0.7rem; min-height: 2.75rem; border-radius: 8px;
  border: 1px solid var(--muted); background: var(--bg); color: var(--fg); }
.club textarea { min-height: 4.5rem; resize: vertical; }
.club-hint { font-size: 0.88rem; color: var(--muted); margin: 0.3rem 0 0; }
.club-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: 0 1rem; }
.club-choices { display: grid; grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr)); gap: 0.4rem 0.8rem; }
.club-choice { display: flex; align-items: flex-start; gap: 0.5rem; padding: 0.4rem 0.2rem; }
.club-choice input { width: 1.25rem; height: 1.25rem; margin: 0.15rem 0 0; flex: none; accent-color: var(--accent); }
.club-msg { min-height: 1.3em; margin: 0.5rem 0; }
.club-msg.is-error { color: var(--club-red-fg); font-weight: 700; }
.club-msg.is-ok { color: var(--accent); font-weight: 700; }
.club-hp { position: absolute; left: -5000px; width: 1px; height: 1px; overflow: hidden; }

/* status banners */
.club-banner { border-radius: 10px; padding: 0.8rem 1rem; margin: 1rem 0; border: 1px solid var(--border); border-left-width: 5px; background: var(--card-bg); }
.club-banner p { margin: 0.2rem 0; }
.club-banner--warn { background: var(--club-warn-bg); border-color: var(--club-warn-bd); border-left-color: var(--club-warn-fg); color: var(--fg); }
.club-banner--ok { border-left-color: var(--accent); }
.club-banner--officer { background: var(--club-red-bg); border-color: var(--club-red-bd); border-left-color: var(--club-red-fg); }
.club-banner strong { display: block; }

/* agenda */
.club-month { margin: 1.6rem 0 0.5rem; font-size: 1.05rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); border-bottom: 1px solid var(--border); padding-bottom: 0.3rem; }
.club-events { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.club-event { display: grid; grid-template-columns: 4.2rem minmax(0, 1fr); gap: 0.9rem; align-items: start; padding: 0.75rem 0.85rem; border: 1px solid var(--border); border-radius: 12px; background: var(--card-bg); }
.club-event.is-next { border: 2px solid var(--accent); }
.club-event.is-cancelled .club-event-title { text-decoration: line-through; }
.club-date { text-align: center; border-radius: 10px; background: var(--bg); border: 1px solid var(--border); padding: 0.35rem 0.2rem; line-height: 1.1; }
.club-date .dow { display: block; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; color: var(--muted); }
.club-date .day { display: block; font-size: 1.55rem; font-weight: 800; }
.club-date .mon { display: block; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; color: var(--accent); }
.club-event-title { margin: 0; font-weight: 700; font-size: 1.05rem; }
.club-event-meta { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.95rem; }
.club-event-more { margin: 0.35rem 0 0; font-size: 0.95rem; }
.club-chip { display: inline-block; font-size: 0.75rem; font-weight: 700; padding: 0.05rem 0.5rem; border-radius: 999px; background: var(--club-blue-bg); color: var(--club-blue-fg); vertical-align: 0.1em; margin-left: 0.25rem; }
.club-chip--meeting { background: var(--accent); color: var(--club-on-accent); }
.club-chip--tentative { background: var(--club-warn-bg); color: var(--club-warn-fg); }
.club-chip--cancelled { background: var(--club-red-bg); color: var(--club-red-fg); }
.club-past summary { cursor: pointer; font-weight: 700; color: var(--accent); margin-top: 1.4rem; min-height: 2rem; }
.club-fine { font-size: 0.88rem; color: var(--muted); margin-top: 1.5rem; }
.club-fine p { margin: 0.25rem 0; }

/* who's bringing what: its own tinted panel, one box per category */
.club-bring-panel { background: var(--club-soft); border: 1px solid var(--border); border-radius: 12px; padding: 0.85rem 0.95rem 0.95rem; }
.club-bring-panel > h2, .club-bring-panel > h3 { margin: 0 0 0.6rem; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); }
.club-bring { display: grid; gap: 0.5rem; }
.club-bring-cat { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 0.5rem 0.75rem 0.55rem; }
.club-bring-cat.is-empty { background: transparent; border-style: dashed; }
.club-bring-panel .club-bring-cat > h3, .club-bring-panel .club-bring-cat > h4 { margin: 0; font-size: 1rem; line-height: 1.3; display: flex; justify-content: space-between; align-items: baseline; gap: 0.25rem 0.75rem; flex-wrap: wrap; }
.club-bring-cat > h3 span, .club-bring-cat > h4 span { font-weight: 600; color: var(--muted); font-size: 0.88rem; }
.club-bring ul { list-style: none; margin: 0.35rem 0 0; padding: 0; display: grid; gap: 0.25rem; }
.club-bring li { line-height: 1.35; overflow-wrap: anywhere; }
.club-bring li.is-mine .who { font-weight: 700; }
.club-bring .note { color: var(--muted); font-size: 0.9rem; }
.club-bring .you { color: var(--accent); font-weight: 700; font-size: 0.9rem; }
.club-mine { list-style: none; padding: 0; margin: 0.5rem 0 0; display: grid; gap: 0.5rem; }
.club-mine li { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.4rem 1rem; padding: 0.6rem 0.8rem; border: 1px solid var(--border); border-radius: 10px; background: var(--card-bg); }

/* QR */
.club-qr-row { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.club-qr { margin: 0; text-align: center; max-width: 240px; }
.club-qr img { display: block; width: 200px; height: 200px; background: #fff; padding: 8px; border-radius: 10px; border: 1px solid var(--border); margin: 0 auto 0.4rem; }
.club-qr figcaption { font-size: 0.92rem; }

/* officer area */
.club-officer-box { border: 2px dashed var(--club-red-fg); border-radius: 12px; padding: 1rem 1.2rem; margin: 2.5rem 0 0; background: var(--bg); }
.club-officer-box h2 { margin: 0 0 0.3rem; font-size: 1.05rem; }
.club-officer-box p { margin: 0.2rem 0 0.7rem; color: var(--muted); }
.club-officer-list { list-style: none; padding: 0; margin: 0.6rem 0 0; display: grid; gap: 0.4rem; }
.club-officer-list li { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.3rem 1rem; padding: 0.55rem 0.8rem; border: 1px solid var(--border); border-radius: 10px; background: var(--card-bg); }
.club-officer-list li.is-past { opacity: 0.8; }
.club-officer-list p { margin: 0; }
.club-slot-row { display: grid; grid-template-columns: minmax(0, 1fr) 6.5rem auto; gap: 0.5rem; align-items: end; margin-bottom: 0.5rem; }
.club-slot-row .club-field { margin: 0; }
.club-editor { border: 2px solid var(--club-navy); }

/* printable poster */
.club-poster { text-align: center; }
.club-poster .club-logo { margin: 0 auto 0.5rem; display: block; width: 200px; height: 200px; }
.club-poster .club-qr { max-width: none; }
.club-poster .club-qr img { width: min(320px, 80vw); height: auto; }
.club-poster .club-qr-row { justify-content: center; }
@media print {
  header, footer, .club-bar, .club-noprint, .skip-link { display: none !important; }
  body { background: #fff; color: #000; }
  main { padding-top: 0; }
  .club-poster .club-qr img { width: 300px; }
}

/* ---------- v2: wider page, cards, pop-ups, big-screen QR, food themes ---------- */
main.club-wide { max-width: 1120px; }
.club-btn--big { font-size: 1.1rem; padding: 0.75rem 1.4rem; min-height: 3rem; }
.club-top { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.25rem; align-items: stretch; margin: 1.5rem 0; }
@media (min-width: 820px) { .club-top { grid-template-columns: minmax(0, 1fr) 280px; } }
.club-top .club-next, .club-top .club-panel { margin: 0; }
.club-scan { text-align: center; }
.club-scan h2 { font-size: 1.05rem; margin: 0 0 0.6rem; }
.club-scan img { display: block; width: 180px; height: 180px; margin: 0 auto 0.4rem; background: #fff; padding: 8px; border-radius: 10px; border: 1px solid var(--border); }
.club-scan p { margin: 0.3rem 0; font-size: 0.95rem; }
.club-scan .club-actions { justify-content: center; }
@media (max-width: 819px) { .club-scan img { width: 140px; height: 140px; } }

.club-theme { margin: 0.35rem 0; font-size: 0.98rem; }
.club-theme strong { color: var(--accent); }
.club-theme--big { font-size: 1.15rem; }

.club-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 1rem; }
.club-card { display: flex; flex-direction: column; gap: 0.15rem; padding: 1rem 1.05rem; border: 1px solid var(--border); border-radius: 14px; background: var(--card-bg); min-width: 0; }
.club-card.is-next { border: 2px solid var(--accent); }
.club-card.is-cancelled .club-card-title { text-decoration: line-through; }
.club-card-top { display: grid; grid-template-columns: 4rem minmax(0, 1fr); gap: 0.8rem; align-items: start; margin-bottom: 0.35rem; }
.club-card-title { margin: 0.1rem 0 0.25rem; font-size: 1.08rem; line-height: 1.3; }
.club-card-chips { margin: 0; }
.club-card-chips .club-chip { margin: 0 0.25rem 0.2rem 0; }
.club-card-meta { margin: 0; color: var(--muted); font-size: 0.95rem; }
.club-card-details { margin: 0.35rem 0 0; font-size: 0.95rem; }
.club-card-actions { margin-top: auto; padding-top: 0.75rem; display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 0.8rem; }
.club-card-actions .club-hint { margin: 0; }

/* pop-up windows (sign-up, officer editor) */
.club-modal { width: min(760px, calc(100vw - 2rem)); max-height: calc(100vh - 2rem); padding: 0; border: 1px solid var(--border); border-radius: 16px; background: var(--bg); color: var(--fg); box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35); }
.club-modal--wide { width: min(1040px, calc(100vw - 2rem)); }
.club-modal::backdrop { background: rgba(10, 20, 14, 0.6); }
.club-modal-head { position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.9rem 1.2rem; background: var(--club-soft); border-bottom: 1px solid var(--border); }
.club-modal-head h2 { margin: 0; font-size: 1.2rem; }
.club-modal > div:not(.club-modal-head), .club-modal > form { padding: 1rem 1.2rem 1.2rem; }
@media (max-width: 600px) {
  .club-modal, .club-modal--wide { width: 100vw; max-width: 100vw; height: 100%; max-height: 100%; margin: 0; border-radius: 0; border: 0; }
}

/* sign-up form (pop-up and sign-up page) */
.club-su-event { border-left: 4px solid var(--accent); padding: 0.1rem 0 0.1rem 0.8rem; margin-bottom: 1rem; }
.club-su-date { font-size: 1.35rem; font-weight: 800; margin: 0; }
.club-su-meta { color: var(--muted); margin: 0.15rem 0; }
.club-su-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.25rem; align-items: start; }
@media (min-width: 760px) { .club-su-grid { grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); } }
/* two separate spaces: the list (tinted) and the form (light border) */
.club-su-form { border: 1px solid var(--border); border-radius: 12px; padding: 0.85rem 1rem 1rem; background: var(--bg); }
.club-su-form h2, .club-su-form h3 { font-size: 1.1rem; margin: 0 0 0.6rem; }

/* next-meeting card: who's bringing what beside the details (wide) or above the button (narrow) */
.club-next { container-type: inline-size; }
#club-next-body.has-bring { display: grid; gap: 0.9rem 1.5rem; grid-template-columns: minmax(0, 1fr); grid-template-areas: "info" "bring" "actions"; }
#club-next-body.has-bring .club-next-info { grid-area: info; }
#club-next-body.has-bring .club-next-info .club-next-meta { margin-bottom: 0.4rem; }
#club-next-body.has-bring .club-next-bring { grid-area: bring; }
#club-next-body.has-bring .club-next-actions { grid-area: actions; margin: 0; align-self: start; }
@container (min-width: 600px) {
  #club-next-body.has-bring { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-areas: "info bring" "actions bring"; align-items: start; }
}
.club-su-page { padding-top: 1.2rem; }

/* big-screen QR */
.club-bigqr { width: 100vw; height: 100vh; max-width: 100vw; max-height: 100vh; margin: 0; padding: 0; border: 0; background: #ffffff; color: #10140c; }
.club-bigqr::backdrop { background: #ffffff; }
.club-bigqr-inner { height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.6rem; padding: 1rem; text-align: center; }
.club-bigqr h2 { margin: 0; font-size: clamp(1.6rem, 1rem + 3vw, 3.2rem); color: #1a3d27; }
.club-bigqr-event { margin: 0; font-size: clamp(1.1rem, 0.8rem + 1.6vw, 2rem); font-weight: 700; }
.club-bigqr img { width: min(62vh, 86vw); height: min(62vh, 86vw); }
.club-bigqr-url { margin: 0; font-size: clamp(0.9rem, 0.7rem + 0.8vw, 1.3rem); color: #3c4a3a; word-break: break-all; }
.club-bigqr .club-btn { background: #2e6b3e; border-color: #2e6b3e; color: #fff !important; }

/* officer editor */
.club-editor-cols { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0 1.5rem; }
@media (min-width: 860px) { .club-editor-cols { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); } }
.club-editor-foot { border-top: 1px solid var(--border); padding-top: 0.9rem; }

/* ---------- sign-up page: choose the get-together (required step 1) ---------- */
.club-step { display: inline-grid; place-items: center; width: 1.8rem; height: 1.8rem; border-radius: 50%; background: var(--accent); color: var(--club-on-accent); font-size: 0.95rem; font-weight: 800; margin-right: 0.35rem; vertical-align: 0.1em; }
.club-req { font-size: 0.85rem; font-weight: 600; color: var(--club-red-fg); }
.club-pick { border: 2px solid var(--accent); border-radius: 14px; padding: 0.9rem 1.1rem 1.1rem; margin: 1.2rem 0; background: var(--bg); min-width: 0; }
.club-pick legend { font-size: 1.2rem; font-weight: 800; padding: 0 0.4rem; }
.club-pick-options { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); gap: 0.8rem; margin-top: 0.5rem; }
.club-pick-option { position: relative; min-width: 0; }
.club-pick-option input { position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0; }
.club-pick-option label { display: grid; grid-template-columns: 4rem minmax(0, 1fr); gap: 0.8rem; align-items: start; height: 100%; padding: 0.85rem; border: 2px solid var(--border); border-radius: 12px; background: var(--card-bg); cursor: pointer; }
.club-pick-option label:hover { border-color: var(--accent); }
.club-pick-option input:checked + label { border-color: var(--accent); background: var(--club-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.club-pick-option input:focus-visible + label { outline: 3px solid var(--club-gold); outline-offset: 2px; }
.club-pick-title { display: block; font-weight: 800; font-size: 1.05rem; line-height: 1.3; }
.club-pick-meta { display: block; color: var(--muted); font-size: 0.93rem; margin-top: 0.15rem; }
.club-pick-check { display: none; margin-top: 0.4rem; font-weight: 700; color: var(--accent); }
.club-pick-option input:checked + label .club-pick-check { display: block; }
.club-choose-first { border-style: dashed; }
.club-choose-first p { display: flex; align-items: center; gap: 0.3rem; flex-wrap: wrap; }

/* officer tools button in the club bar (top of every club page) */
.club-bar-officer { margin-left: auto; display: inline-flex; align-items: center; gap: 0.4rem; min-height: 2.25rem; padding: 0.3rem 0.85rem; border-radius: 8px;
  border: 2px solid var(--club-red-fg); color: var(--club-red-fg) !important; background: var(--bg); font-weight: 700; font-size: 0.92rem; text-decoration: none; }
.club-bar-officer:hover { background: var(--club-red-bg); }
.club-bar-officer[aria-current="page"] { background: var(--club-red-bg); }