:root {
  --bg: #fffaf6;
  --card: #ffffff;
  --ink: #2a2420;
  --muted: #5c4f47;
  --faint: #6f625a;
  --line: #ecdcd2;
  --soft: #f6e9e1;
  --orange: #f37a48;
  --orange-ink: #a8431a;
  --green: #1b6f1b;
  --green-ink: #173f17;
  --mint: #e0f4e0;
  --radius: 20px;
  --font: "Outfit", "Noto Sans SC", "Noto Sans TC", system-ui, sans-serif;
  --nav-h: 74px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); }
body { -webkit-tap-highlight-color: transparent; min-height: 100dvh; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--orange-ink); }
a:hover { color: #7a2f12; }
:focus-visible { outline: 3px solid #4f7a94; outline-offset: 2px; border-radius: 8px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.zh-trad { font-family: "Outfit", "Noto Sans TC", system-ui, sans-serif; }

.splash { min-height: 100dvh; display: grid; place-items: center; }
.splash img { animation: bob 1.4s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(-8px); } }

/* ---------- Layout ---------- */
.shell { min-height: 100dvh; display: flex; flex-direction: column; }
.main {
  flex: 1; width: 100%; max-width: 760px; margin: 0 auto;
  padding: calc(20px + env(safe-area-inset-top)) 18px calc(var(--nav-h) + 24px + env(safe-area-inset-bottom));
  display: flex; flex-direction: column; gap: 16px;
}
.nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
  height: calc(var(--nav-h) + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom);
  background: #fff; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
}
.nav a {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  text-decoration: none; color: var(--faint); font-size: 12px; font-weight: 600;
}
.nav a[aria-current="page"] { color: var(--orange-ink); font-weight: 800; }
.nav svg { width: 24px; height: 24px; }

.nav .brand { display: none; align-items: center; gap: 10px; padding: 0 10px 20px; font-weight: 800; font-size: 14px; letter-spacing: .06em; color: var(--orange-ink); }
.nav .brand img { width: 44px; }

@media (min-width: 900px) {
  .shell { flex-direction: row; }
  .nav {
    position: sticky; top: 0; height: 100dvh; width: 220px; padding: 28px 14px;
    border-top: 0; border-right: 1px solid var(--line);
    display: flex; flex-direction: column; gap: 4px; justify-content: flex-start;
  }
  .nav .brand { display: flex; }
  .nav a { flex-direction: row; justify-content: flex-start; gap: 12px; padding: 12px 14px; border-radius: 14px; font-size: 15px; }
  .nav a[aria-current="page"] { background: #fdf1ea; }
  .main { padding: 32px 32px 48px; }
}

/* ---------- Type ---------- */
.eyebrow { font-size: 12.5px; font-weight: 700; letter-spacing: .06em; color: var(--orange-ink); text-transform: uppercase; }
h1 { margin: 0; font-size: 26px; font-weight: 800; line-height: 1.15; }
h2 { margin: 0; font-size: 17px; font-weight: 800; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.row { display: flex; align-items: center; gap: 12px; }
.row.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }
.stack { display: flex; flex-direction: column; gap: 8px; }

/* ---------- Cards ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.card.green { background: var(--green); color: #fff; border: 0; }
.card.mint { background: var(--mint); border: 0; color: var(--green-ink); }
.chip { display: inline-flex; align-items: center; font-size: 12px; font-weight: 800; color: #fff; border-radius: 999px; padding: 4px 9px; white-space: nowrap; }
.chip.light { background: var(--soft); color: var(--ink); }
.when { font-size: 13.5px; font-weight: 700; color: var(--orange-ink); }
.live { color: #fff; background: #c2412d; border-radius: 999px; padding: 3px 9px; font-size: 12px; font-weight: 800; }
.session-title { font-size: 20px; font-weight: 800; line-height: 1.2; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 20px; border-radius: 999px; border: 0; cursor: pointer;
  background: var(--orange); color: var(--ink); font-weight: 800; font-size: 15.5px; text-decoration: none;
}
.btn:hover { background: #f06a33; color: var(--ink); }
.btn[disabled] { opacity: .6; cursor: default; }
.btn.block { width: 100%; }
.btn.ghost { background: #fff; border: 1.5px solid var(--line); font-weight: 700; }
.btn.green { background: var(--green); color: #fff; }
.btn svg { width: 20px; height: 20px; }
.linkbtn { border: 0; background: none; padding: 8px 0; color: var(--orange-ink); text-decoration: underline; cursor: pointer; font-size: 14px; }
.toggle {
  min-height: 40px; padding: 0 14px; border-radius: 999px; cursor: pointer; white-space: nowrap;
  font-weight: 800; font-size: 13.5px; border: 1.5px solid var(--orange); background: #fff; color: var(--orange-ink);
}
.toggle[aria-pressed="true"] { background: var(--mint); border-color: var(--green); color: var(--green-ink); }

/* ---------- Forms ---------- */
label.field { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 700; }
.input, select.input {
  min-height: 50px; width: 100%; border: 1.5px solid var(--line); border-radius: 16px;
  padding: 0 14px; font-size: 16px; background: #fff; min-width: 0;
}
.input:focus { border-color: var(--orange); outline: none; box-shadow: 0 0 0 3px rgba(243, 122, 72, .2); }
.code-input { text-align: center; letter-spacing: .5em; font-size: 26px; font-weight: 800; padding-left: .5em; }
.check { display: flex; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 12px 14px; cursor: pointer; }
.check input { width: 22px; height: 22px; accent-color: var(--green); margin: 0; flex: none; }
.seg { display: grid; grid-template-columns: 1fr 1fr; background: var(--soft); border-radius: 999px; padding: 4px; }
.seg button { min-height: 42px; border: 0; border-radius: 999px; background: transparent; font-weight: 800; cursor: pointer; }
.seg button[aria-pressed="true"] { background: #fff; box-shadow: 0 1px 3px rgba(42,36,32,.12); }
.error { color: #a12b1b; font-size: 14px; font-weight: 600; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
@media (max-width: 380px) { .grid2 { grid-template-columns: 1fr; } }

/* ---------- Avatar ---------- */
.av { position: relative; display: inline-block; width: var(--s); height: var(--s); flex: none; }
.av .disc { display: block; width: 100%; height: 100%; border-radius: 50%; background: var(--bg-av, #fdf1ea); overflow: hidden; }
.av .disc svg { width: 100%; height: 100%; display: block; }
.av .flag {
  position: absolute; right: -2px; bottom: 0; width: max(14px, calc(var(--s) * .38)); aspect-ratio: 4 / 3;
  border: 2px solid #fff; border-radius: 4px; box-shadow: 0 1px 3px rgba(42,36,32,.25); background: #fff; object-fit: cover;
}
.av.locked .disc { filter: grayscale(1) opacity(.45); }
.av .lock {
  position: absolute; left: 50%; top: 50%; width: 40%; height: 40%; min-width: 14px; min-height: 14px; transform: translate(-50%, -50%);
  border-radius: 50%; background: var(--ink); display: grid; place-items: center;
}
.av .lock svg { width: 55%; height: 55%; }
.stackav { display: flex; }
.stackav > * + * { margin-left: -8px; }
.stackav .av .disc { box-shadow: 0 0 0 2px #fff; }

/* ---------- Session list ---------- */
.slist { display: flex; flex-direction: column; gap: 8px; }
.sitem { background: #fff; border: 1px solid var(--line); border-radius: 18px; }
.sitem .top { display: flex; align-items: center; gap: 12px; padding: 10px 12px; }
.sitem .open { all: unset; cursor: pointer; display: flex; align-items: center; gap: 12px; flex: 1; min-width: 0; }
.sitem .open:focus-visible { outline: 3px solid #4f7a94; border-radius: 12px; }
.datebox { width: 48px; flex: none; text-align: center; border-radius: 12px; padding: 5px 0; }
.datebox .dow { font-size: 11px; font-weight: 700; }
.datebox .day { font-size: 19px; font-weight: 800; line-height: 1.05; }
.stitle { font-size: 15.5px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.smeta { font-size: 12.5px; color: var(--muted); }
.sdetail { border-top: 1px solid var(--line); padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 10px; font-size: 14.5px; line-height: 1.45; }
.daylabel { font-size: 13px; font-weight: 800; letter-spacing: .05em; color: var(--faint); text-transform: uppercase; margin: 8px 2px 0; }
.names { display: flex; flex-wrap: wrap; gap: 6px; }
.names > span { display: inline-flex; align-items: center; gap: 6px; background: var(--soft); border-radius: 999px; padding: 3px 10px 3px 3px; font-size: 13.5px; font-weight: 600; }

/* ---------- Members ---------- */
.mgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 8px; }
.mcard { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 12px 6px 10px; display: flex; flex-direction: column; align-items: center; gap: 4px; text-align: center; min-width: 0; }
.mcard b { font-size: 14.5px; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mcard .small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
.hostgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.hostcard { display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 10px 12px; min-width: 0; }
.badge { font-size: 12px; font-weight: 800; color: var(--green); letter-spacing: .03em; }

/* ---------- Profile ---------- */
.fruits { display: grid; grid-template-columns: repeat(auto-fill, minmax(62px, 1fr)); gap: 8px 4px; }
.fruitbtn { border: 0; background: none; padding: 0; display: flex; flex-direction: column; align-items: center; gap: 3px; cursor: pointer; }
.fruitbtn[disabled] { cursor: default; }
.fruitbtn .ring { display: block; border-radius: 50%; padding: 2px; border: 3px solid transparent; }
.fruitbtn[aria-pressed="true"] .ring { border-color: var(--orange); }
.fruitbtn .cap { font-size: 11.5px; font-weight: 700; }
.fruitbtn[disabled] .cap { color: var(--faint); }
.swatches { display: flex; gap: 10px; flex-wrap: wrap; }
.swatch { width: 42px; height: 42px; border-radius: 50%; cursor: pointer; border: 3px solid #fff; box-shadow: inset 0 0 0 1px rgba(42,36,32,.12); }
.swatch[aria-pressed="true"] { border-color: var(--ink); }

/* ---------- Login ---------- */
.login { min-height: 100dvh; max-width: 440px; margin: 0 auto; padding: calc(48px + env(safe-area-inset-top)) 24px calc(28px + env(safe-area-inset-bottom)); display: flex; flex-direction: column; gap: 22px; }
.login .hero { display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.login .hero img { width: 132px; height: auto; }
.login p { margin: 0; line-height: 1.5; }

/* ---------- Toast ---------- */
#toast {
  position: fixed; left: 50%; bottom: calc(var(--nav-h) + 16px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px);
  background: var(--ink); color: #fff; padding: 12px 18px; border-radius: 14px; font-size: 14.5px; font-weight: 600;
  opacity: 0; pointer-events: none; transition: .2s; z-index: 50; max-width: calc(100vw - 32px);
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }
@media (min-width: 900px) { #toast { bottom: 24px; } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

/* ---------- Notes (phase 2) ---------- */
.vocab { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.vrow { display: grid; grid-template-columns: minmax(64px, auto) minmax(0, 1fr) minmax(0, 1.3fr); gap: 10px; align-items: baseline; padding: 9px 12px; background: #fff; }
.vrow + .vrow { border-top: 1px solid var(--line); }
.vz { font-family: "Noto Sans SC", "Noto Sans TC", sans-serif; font-size: 19px; font-weight: 700; }
.vp { color: var(--orange-ink); font-weight: 600; font-size: 14.5px; }
.vm { color: var(--muted); font-size: 14.5px; }
.notebody { background: #fffdfb; border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; font-size: 15px; line-height: 1.6; overflow-wrap: anywhere; }
.filebtn { display: flex; align-items: center; gap: 10px; min-height: 48px; padding: 6px 12px; background: #fff; border: 1.5px solid var(--line); border-radius: 14px; font: inherit; text-align: left; cursor: pointer; width: 100%; color: var(--ink); }
div.filebtn { cursor: default; }
.filebtn .grow { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.xbtn { flex: none; width: 40px; height: 40px; border-radius: 50%; border: 1.5px solid var(--line); background: #fff; font-size: 20px; line-height: 1; cursor: pointer; color: var(--muted); }
.xbtn:hover { border-color: #c2412d; color: #c2412d; }
.hostrow { display: block; text-decoration: none; color: inherit; }
.hostrow:hover { border-color: var(--orange); color: inherit; }

/* ---------- Host view ---------- */
.whogrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 6px; }
.whobtn { display: flex; align-items: center; gap: 8px; min-height: 48px; padding: 4px 8px; border-radius: 14px; border: 1.5px solid var(--line); background: #fff; font: inherit; font-size: 14px; font-weight: 700; text-align: left; cursor: pointer; color: var(--ink); min-width: 0; }
.whobtn .grow { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.whobtn .tick { width: 24px; height: 24px; flex: none; border-radius: 7px; border: 1.5px solid #cbb8ac; display: grid; place-items: center; font-size: 15px; font-weight: 900; color: #fff; }
.whobtn[aria-checked="true"] { border-color: var(--green); background: #f1faf1; }
.whobtn[aria-checked="true"] .tick { background: var(--green); border-color: var(--green); }
.vhead, .vedit { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1fr) minmax(0, 1.2fr) 40px; gap: 6px; align-items: center; }
.vhead { padding: 0 4px; font-weight: 700; }
.vedit .input { min-height: 44px; padding: 0 10px; font-size: 15px; }
@media (max-width: 420px) {
  .vhead { display: none; }
  .vedit { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 40px; padding-bottom: 8px; border-bottom: 1px dashed var(--line); }
  .vedit .input:nth-child(3) { grid-column: 1 / 4; }
  .vedit .xbtn { grid-row: 1; grid-column: 3; }
}

/* ---------- Notes PDF (rendered off-screen, then captured) ---------- */
.pdfpage { position: absolute; left: -10000px; top: 0; width: 794px; box-sizing: border-box; padding: 56px 64px 40px; background: #fff; color: var(--ink); font-family: var(--font); }
.pdfpage .pdfhead { display: flex; gap: 18px; align-items: center; padding-bottom: 18px; border-bottom: 2px solid var(--orange); margin-bottom: 18px; }
.pdfpage h1 { font-size: 30px; margin: 4px 0 2px; }
.pdfpage h2 { font-size: 18px; margin: 22px 0 10px; color: var(--orange-ink); }
.pdfpage .pdfmeta { font-size: 14px; color: var(--muted); }
.pdfpage .pdftopic { font-size: 15px; color: var(--muted); margin: 0; }
.pdfpage .vocab { border-radius: 10px; }
.pdfpage .vrow { grid-template-columns: 170px 210px 1fr; padding: 10px 14px; }
.pdfpage .vz { font-size: 24px; }
.pdfpage .vp, .pdfpage .vm { font-size: 16px; }
.pdfpage .pdfbody p { margin: 0; font-size: 16px; line-height: 1.7; overflow-wrap: anywhere; }
.pdfpage .pdffoot { margin-top: 28px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 12px; color: var(--faint); }

/* ---------- XP (phase 3) ---------- */
.xpcard { text-decoration: none; }
.xpcard:hover { color: #fff; filter: brightness(1.04); }
.xpbar { height: 10px; border-radius: 999px; background: rgba(255,255,255,.22); overflow: hidden; }
.xpbar span { display: block; height: 100%; border-radius: 999px; background: var(--orange); }
.pill { background: rgba(255,255,255,.16); border-radius: 999px; padding: 4px 10px; }
.tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); background: var(--soft); border-radius: 999px; padding: 4px; }
.tabs button { min-height: 42px; border: 0; border-radius: 999px; background: transparent; font-weight: 800; font-size: 14.5px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: #fff; box-shadow: 0 1px 3px rgba(42,36,32,.12); }
.podium { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: end; gap: 8px; }
.podium > div { display: flex; flex-direction: column; align-items: center; gap: 4px; min-width: 0; }
.podium b { font-size: 14.5px; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.podium .step { width: 100%; border-radius: 14px 14px 0 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.podium .step .n { font-size: 22px; font-weight: 800; line-height: 1; }
.lbrow { display: flex; align-items: center; gap: 12px; border-radius: 16px; padding: 8px 12px; background: #fff; border: 1px solid var(--line); text-decoration: none; color: inherit; }
a.lbrow:hover, a.mcard:hover { border-color: var(--orange); color: inherit; }
.lbrow.me { background: var(--mint); border-color: var(--green); }
.lbrow .rk { width: 22px; font-weight: 800; color: var(--faint); text-align: center; }
a.mcard { text-decoration: none; color: inherit; }
.periods { display: flex; gap: 6px; justify-content: center; }
.periods button { min-height: 36px; padding: 0 14px; border-radius: 999px; border: 1.5px solid var(--line); background: #fff; font-weight: 700; font-size: 13.5px; cursor: pointer; }
.periods button[aria-pressed="true"] { border-color: var(--ink); background: var(--ink); color: #fff; }
.awardrow { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-top: 1px solid var(--line); font-size: 14px; }

/* ---------- Discord chat link ---------- */
.navchat { display: none !important; }
.chatcard { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-radius: var(--radius); background: #5865f2; color: #fff; text-decoration: none; }
.chatcard:hover { color: #fff; background: #4752c4; }
.chatcard .small { opacity: .9; }
@media (min-width: 900px) {
  .nav .navchat { display: flex !important; margin-top: auto; color: #4752c4; font-weight: 700; border: 1.5px solid #d9dcfb; background: #f4f5ff; }
  .nav .navchat:hover { background: #e8eaff; color: #3c45a5; }
  .chatcard { display: none; }
}

/* ---------- Member card ---------- */
.bio { margin: 0; font-size: 16px; line-height: 1.5; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 12px 14px; overflow-wrap: anywhere; }
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.fact { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 12px 14px; display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.fact b { font-size: 17px; line-height: 1.25; overflow-wrap: anywhere; }
.fact span { font-size: 12.5px; color: var(--muted); }
a.hostcard { text-decoration: none; color: inherit; }
a.hostcard:hover, .podium a:hover b { border-color: var(--orange); color: inherit; }
.podium a { text-decoration: none; color: inherit; display: flex; flex-direction: column; align-items: center; gap: 4px; min-width: 0; width: 100%; }

/* ---------- Month calendar (desktop only) ---------- */
.viewswitch { display: none; min-width: 190px; }
.viewswitch button { min-height: 36px; font-size: 13.5px; }
@media (min-width: 900px) { .viewswitch { display: grid; } }
.cal { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.calhead h2 { margin: 0; }
.calgrid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.calwd { padding: 6px 8px; font-size: 12px; font-weight: 800; letter-spacing: .04em; color: var(--faint); text-transform: uppercase; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fffdfb; }
.calcell { min-height: 104px; padding: 4px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.calcell.out { background: #fcf8f5; }
.calcell.out .calday { color: #b8aaa1; }
.calday { font-size: 12.5px; font-weight: 700; padding: 2px 4px; align-self: flex-start; border-radius: 999px; min-width: 24px; text-align: center; }
.calcell.today .calday { background: var(--orange); color: var(--ink); }
.calchip { all: unset; box-sizing: border-box; cursor: pointer; display: block; width: 100%; font-size: 11.5px; line-height: 1.3; padding: 3px 6px; border-radius: 7px;
  background: var(--t); color: var(--ink); border-left: 3px solid var(--c); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.calchip b { color: var(--c); font-weight: 800; }
.calchip:hover, .calchip.on { outline: 2px solid var(--c); }
.calchip:focus-visible { outline: 3px solid #4f7a94; }
.calchip.past { opacity: .55; }
.calmore { all: unset; cursor: pointer; font-size: 11.5px; font-weight: 700; color: var(--orange-ink); padding: 0 6px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12.5px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
@media (min-width: 900px) { .main { max-width: 1040px; } } /* same width on every screen, list or calendar */