:root {
  --leaf:#6B8E50; --leaf-dark:#557A40;
  --caramel:#8B6F47; --caramel-dark:#6E5635;
  --mocha:#3D2E1F; --mocha-dark:#3D2E1F;
  --cream:#F5EEDC; --cream-soft:#FAF5EB;
  --gold:#D4A857;
  --red:#c0533b; --red-soft:#fce4dc;
}
* { box-sizing: border-box; }
html, body { margin: 0; font-family: 'Sarabun','Tahoma',sans-serif; background: #f7f3ea; color: var(--mocha-dark); -webkit-tap-highlight-color: transparent; }
body { padding-bottom: 80px; }

.appbar {
  background: linear-gradient(135deg, var(--mocha-dark) 0%, var(--caramel-dark) 100%);
  color: white; padding: 14px 16px; position: sticky; top: 0; z-index: 50;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.appbar-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.brand { display: flex; align-items: center; gap: 10px; }
.logo-circle { width: 40px; height: 40px; background: white; border-radius: 50%; padding: 2px; display: inline-flex; }
.logo-circle svg { width: 100%; height: 100%; }
.appbar h1 { font-size: 19px; margin: 0; font-weight: 800; }
.appbar small { font-size: 11px; opacity: .8; display: block; }
.tools { display: flex; gap: 6px; }
.icon-btn { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,.2); border: 0; color: white; font-size: 20px; cursor: pointer; }

main { padding: 14px; max-width: 720px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }
h2 { font-size: 22px; color: var(--mocha-dark); margin: 8px 0 12px; }
.muted { color: #888; font-size: 13px; margin: 4px 0 14px; }
.empty { text-align: center; color: #aaa; padding: 24px; font-size: 14px; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; margin-bottom: 14px; }
.stat-card { background: white; padding: 12px 8px; border-radius: 10px; text-align: center; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.stat-card .v { font-size: 24px; font-weight: 900; color: var(--leaf-dark); }
.stat-card .l { font-size: 12px; color: #888; }

.search-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-bottom: 12px; }
.search-row input { padding: 12px 14px; border: 1.5px solid #ddd; border-radius: 10px; font-size: 15px; font-family: inherit; }
.search-row input:focus { outline: none; border-color: var(--leaf); }

.btn-primary { background: var(--leaf); color: white; border: 0; border-radius: 10px; padding: 10px 16px; font: 700 15px inherit; font-family: inherit; cursor: pointer; }
.btn-primary:active { background: var(--leaf-dark); }
.btn-danger { background: var(--red); color: white; border: 0; border-radius: 10px; padding: 10px 16px; font: 700 15px inherit; font-family: inherit; cursor: pointer; }

/* Member list */
.member-list { display: grid; gap: 6px; }
.member-card {
  background: white; padding: 12px 14px; border-radius: 10px;
  display: flex; justify-content: space-between; align-items: flex-start; gap: 10px;
  cursor: pointer; box-shadow: 0 1px 3px rgba(0,0,0,.05);
  border-left: 4px solid var(--cream-soft);
}
.member-card:active { transform: scale(.99); }
.member-card .num { color: #888; font-size: 13px; }
.member-card .name { font-size: 17px; font-weight: 700; color: var(--mocha-dark); margin: 2px 0; }
.member-card .meta { font-size: 13px; color: #666; }
.member-card .meta span { margin-right: 10px; }
.member-card .pos { background: var(--cream-soft); padding: 2px 8px; border-radius: 8px; font-size: 12px; font-weight: 700; color: var(--caramel-dark); }
.member-card.chair { border-left-color: var(--gold); }
.member-card.committee { border-left-color: var(--leaf); }

/* Form */
form { display: grid; gap: 12px; }
label { display: grid; gap: 4px; }
label > span { font-size: 14px; font-weight: 600; color: var(--mocha-dark); }
label em { color: var(--red); font-style: normal; }
input[type="text"], input[type="search"], input[type="number"], input[type="tel"], textarea, select, input:not([type]) {
  font-family: inherit; font-size: 16px;
  padding: 11px 13px; border: 1.5px solid #ddd; border-radius: 10px;
  background: white; width: 100%;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--leaf); }
fieldset { border: 1.5px solid #ddd; border-radius: 10px; padding: 8px 12px; margin: 0; }
legend { font-size: 13px; color: #888; padding: 0 4px; }
.cb { display: inline-flex; align-items: center; gap: 4px; margin-right: 14px; font-size: 14px; cursor: pointer; }
.cb input { width: 18px; height: 18px; margin: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 2fr; gap: 10px; }
.actions { display: flex; gap: 8px; margin-top: 12px; }
.actions button { flex: 1; padding: 14px; }
.back-btn { background: transparent; border: 0; color: var(--mocha); font: 600 15px inherit; padding: 8px 0; cursor: pointer; }

/* TODO */
.todo-card {
  background: white; padding: 10px 12px; border-radius: 10px; margin-bottom: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06); border-left: 4px solid #ccc;
}
.todo-card.open { border-left-color: var(--gold); }
.todo-card.done { border-left-color: var(--leaf); opacity: .85; }
.todo-card .head { display: flex; align-items: center; gap: 6px; font-size: 12px; margin-bottom: 4px; }
.todo-card .head .tag { padding: 2px 8px; border-radius: 6px; font-weight: 700; }
.todo-card .title { font-size: 15px; color: var(--mocha-dark); margin: 4px 0; }
.todo-card .foot { display: flex; justify-content: space-between; font-size: 12px; color: #888; }
.todo-card select { padding: 4px 8px; font-size: 13px; border-radius: 6px; }
.btn-export { display: block; width: 100%; margin-top: 14px; background: var(--mocha-dark); color: white; padding: 12px; border: 0; border-radius: 10px; font: 700 15px inherit; font-family: inherit; cursor: pointer; }

/* Chat widget */
.chat-fab { position: fixed; bottom: 16px; right: 16px; z-index: 90; width: 54px; height: 54px; border-radius: 50%; background: var(--leaf); color: white; border: 0; font-size: 24px; cursor: pointer; box-shadow: 0 4px 12px rgba(107,142,80,.4); }
.chat-panel { position: fixed; bottom: 12px; right: 12px; left: 12px; z-index: 100; max-width: 420px; margin-left: auto; background: white; border-radius: 16px; box-shadow: 0 8px 32px rgba(0,0,0,.25); display: flex; flex-direction: column; height: 75vh; max-height: 600px; overflow: hidden; }
.chat-panel[hidden] { display: none; }
.chat-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; background: var(--mocha-dark); color: white; }
.chat-head strong { display: block; font-size: 16px; }
.chat-head small { font-size: 12px; opacity: .8; }
.chat-close { background: rgba(255,255,255,.2); border: 0; color: white; width: 32px; height: 32px; border-radius: 50%; font-size: 22px; cursor: pointer; }
.chat-body { flex: 1; min-height: 0; overflow-y: auto; padding: 12px; background: #faf9f5; display: flex; flex-direction: column; gap: 8px; }
.chat-msg { background: white; padding: 8px 12px; border-radius: 10px; border-left: 3px solid var(--leaf); font-size: 14px; }
.chat-msg .head { display: flex; gap: 6px; font-size: 11px; margin-bottom: 4px; }
.chat-msg .tag { padding: 2px 7px; border-radius: 6px; font-weight: 700; }
.chat-msg .time { color: #999; }
.chat-msg .body { color: var(--mocha-dark); white-space: pre-wrap; }
.chat-form { display: flex; gap: 8px; padding: 10px; background: white; border-top: 1px solid #eee; }
.chat-form input { flex: 1; padding: 10px 14px; font-size: 15px; border: 1.5px solid #ddd; border-radius: 22px; }
.chat-send { width: 44px; height: 44px; border-radius: 50%; background: var(--leaf); color: white; border: 0; font-size: 18px; cursor: pointer; }

/* Toast */
.toast { position: fixed; bottom: 90px; left: 50%; transform: translateX(-50%); background: var(--mocha-dark); color: white; padding: 10px 18px; border-radius: 22px; font-size: 14px; z-index: 200; opacity: 0; transition: opacity .3s; pointer-events: none; }
.toast.show { opacity: 1; }
.toast.error { background: var(--red); }
.toast.success { background: var(--leaf); }