:root {
  --bg: #f4f5f7; --card: #fff; --ink: #1c2330; --muted: #6b7280;
  --accent: #0f4c81; --accent2: #146cb5; --danger: #b3261e; --ok: #1e7d32;
  --border: #dde1e6;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", Arial, sans-serif; background: var(--bg); color: var(--ink); }
h1, h2, h3 { margin: 0 0 .5em; }
.hidden { display: none !important; }
.empty { color: var(--muted); padding: 1em; }
.error { color: var(--danger); margin: .5em 0; }
.btn {
  display: inline-block; padding: .5em 1em; border: 1px solid var(--border); border-radius: 6px;
  background: var(--card); color: var(--ink); cursor: pointer; font-size: 14px; text-decoration: none;
}
.btn:hover { background: #eef2f6; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent2); }
.btn-primary:disabled { background: #93a7bb; border-color: #93a7bb; cursor: not-allowed; }
.btn-danger { background: #b3261e; border-color: #b3261e; color: #fff; }
.btn-danger:hover { background: #8c1d18; }
.btn-sm { padding: .25em .6em; font-size: 13px; }
.btn-big { font-size: 18px; padding: .8em 1.2em; width: 100%; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; background: #e3e8ee; }
.badge-high { background: #f8d7d5; color: var(--danger); }
.badge-low { background: #e8eaed; color: var(--muted); }
.badge-test { background: #fff3cd; color: #7a5b00; }
.badge-manual { background: #d7e7f8; color: var(--accent); }
.badge-docs { background: #e3d7f8; color: #5b21b6; }
.badge-dup { background: #eadcf8; color: #5b2a86; }
input, textarea, select {
  font: inherit; padding: .5em; border: 1px solid var(--border); border-radius: 6px;
  background: #fff; color: var(--ink); width: 100%;
}
label { display: block; margin: .6em 0; font-size: 14px; }
label input, label textarea, label select { margin-top: .25em; }
.p-msg { min-height: 1.2em; font-size: 14px; margin-top: .5em; color: var(--danger); }
.p-msg.ok { color: var(--ok); }

/* login */
.login-box { max-width: 380px; margin: 8vh auto; background: var(--card); padding: 2em; border-radius: 10px; box-shadow: 0 2px 12px #0001; }

/* participant */
.participant { background: var(--accent); }
.participant-wrap { max-width: 520px; margin: 0 auto; padding: 16px; min-height: 100vh; }
.p-header { color: #fff; padding: 12px 0 18px; }
.p-kicker { font-size: 12px; letter-spacing: .15em; opacity: .8; }
.p-header h1 { font-size: 22px; margin: 6px 0; }
.p-slide { font-size: 26px; font-weight: 700; }
.p-slide-title { font-size: 16px; opacity: .9; margin-top: 4px; }
.p-form, .p-done { background: var(--card); border-radius: 12px; padding: 18px; }
.p-hint { margin-top: 0; font-weight: 600; }
.p-counter { text-align: right; font-size: 12px; color: var(--muted); margin: 4px 0; }
.p-docs { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; font-size: 15px; cursor: pointer; }
.p-docs input { width: 20px; height: 20px; accent-color: var(--accent); }
.p-docs-note { color: var(--muted); font-size: 12px; }
.p-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 14px; }
.p-row select { flex: 1; padding: 8px; border: 1px solid #c3ced8; border-radius: 8px; font-size: 15px; background: #fff; }
.p-form input { margin-bottom: 10px; }
.p-done { text-align: center; font-size: 18px; }
.p-done-icon { font-size: 48px; color: var(--ok); }
.p-note { color: #ffffffb0; font-size: 13px; text-align: center; margin-top: 14px; }
.p-closed { background: var(--card); border-radius: 12px; padding: 30px 18px; text-align: center; font-size: 20px; }

/* moderator */
.moderator { background: var(--bg); }
.m-header {
  display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
  background: var(--ink); color: #fff; padding: 8px 14px;
}
.m-header .btn { background: #2a3242; color: #fff; border-color: #3a4456; }
.m-title { font-size: 16px; }
.m-statuses { display: flex; gap: 12px; font-size: 12px; opacity: .95; flex-wrap: wrap; }
.m-statuses .bad { color: #ff9d97; }
.m-statuses .good { color: #9fe8a9; }
.conn { font-weight: 700; }
.conn.online { color: #9fe8a9; }
.conn.reconnecting { color: #ffd479; }
.m-header-right { margin-left: auto; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.m-new-count { font-weight: 700; background: var(--accent2); padding: 4px 10px; border-radius: 6px; }
.m-new-count.flash { animation: flash 1s; }
@keyframes flash { 0% { background: #ff5252; } 100% { background: var(--accent2); } }
.m-slide-ctl { display: flex; gap: 4px; align-items: center; }
.m-slide-ctl input { width: 64px; text-align: center; }
.m-sound { color: #fff; margin: 0; display: flex; gap: 4px; align-items: center; }
.m-sound input { width: auto; }
.m-toolbar {
  display: flex; gap: 10px; padding: 10px 14px; background: var(--card);
  border-bottom: 1px solid var(--border); align-items: center; flex-wrap: wrap;
}
.m-toolbar select, .m-toolbar input { width: auto; }
.m-toolbar label { margin: 0; display: flex; gap: 4px; align-items: center; font-size: 13px; }
.m-toolbar label input { width: auto; }
.m-grid { display: grid; grid-template-columns: 1.2fr 1.3fr 1fr; gap: 10px; padding: 10px; height: calc(100vh - 118px); }
.m-col { background: var(--card); border: 1px solid var(--border); border-radius: 8px; overflow-y: auto; padding: 10px; }
.q-card { border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; margin-bottom: 8px; cursor: pointer; }
.q-card:hover { background: #f0f5fa; }
.q-card.selected { border-color: var(--accent); background: #eaf2fa; }
.q-card .q-head { display: flex; gap: 6px; font-size: 12px; color: var(--muted); flex-wrap: wrap; align-items: center; }
.q-card .q-text { margin-top: 4px; font-size: 14px; white-space: pre-wrap; }
.q-status { font-weight: 600; }
.st-NEW { color: var(--accent2); } .st-IN_PROGRESS { color: #8a6d00; }
.st-SELECTED { color: #5b2a86; } .st-SHOWN { color: var(--ok); }
.st-ANSWERED { color: var(--ok); } .st-DEFERRED { color: var(--muted); } .st-REJECTED { color: var(--danger); }
.m-detail h3, .m-ai h3 { font-size: 15px; }
.d-text { font-size: 17px; white-space: pre-wrap; background: #f6f8fa; padding: 10px; border-radius: 8px; }
.d-meta { font-size: 13px; color: var(--muted); margin: 8px 0; }
.d-actions { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; }
.sim-item { border: 1px dashed var(--border); border-radius: 6px; padding: 6px 8px; margin: 6px 0; font-size: 13px; }
.sim-item .score { color: var(--muted); }
.ai-answer { white-space: pre-wrap; background: #f6f8fa; padding: 10px; border-radius: 8px; font-size: 14px; }
.ai-conf { margin: 8px 0; font-size: 14px; }
.ai-conf.low { color: var(--danger); font-weight: 700; }
.src-item { font-size: 13px; border-left: 3px solid var(--accent2); padding: 4px 8px; margin: 6px 0; background: #f6f8fa; }
.src-item .src-head { font-weight: 600; }
.src-item .src-excerpt { color: var(--muted); margin-top: 2px; white-space: pre-wrap; }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }
textarea#finalAnswer { min-height: 110px; }
.kbd-hint { font-size: 11px; color: var(--muted); margin-top: 8px; }

/* modal */
.modal { position: fixed; inset: 0; background: #0008; display: flex; align-items: center; justify-content: center; z-index: 10; }
.modal-body { background: #fff; border-radius: 10px; padding: 20px; width: min(480px, 92vw); }
.modal-actions { display: flex; gap: 8px; margin-top: 10px; }

/* screen */
.screen { background: #0b0e14; color: #f2f5f9; }
.scr-root { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 4vw; text-align: center; }
.scr-mode { width: 100%; }
.scr-title { font-size: clamp(1.6rem, 3.5vw, 3rem); color: #9fb2c8; margin-bottom: 3vh; }
.scr-qr { width: clamp(180px, 24vw, 340px); background: #fff; padding: 12px; border-radius: 12px; }
.scr-hint { font-size: clamp(1.4rem, 3vw, 2.6rem); margin-top: 3vh; color: #c9d4e0; }
.scr-label { font-size: clamp(1.1rem, 2.2vw, 1.9rem); letter-spacing: .2em; color: #6f89a6; }
.scr-label-answer { margin-top: 4vh; color: #7fd18b; }
.scr-slide { font-size: clamp(1.3rem, 2.6vw, 2.2rem); color: #9fb2c8; margin: 1vh 0 2vh; }
.scr-text { font-size: clamp(2rem, 5vw, 5rem); font-weight: 700; line-height: 1.25; }
.scr-text-sm { font-size: clamp(1.4rem, 3.2vw, 3rem); font-weight: 600; color: #d7e0ea; }
.scr-src { font-size: clamp(1rem, 1.8vw, 1.6rem); color: #8fa2b8; margin-top: 2vh; }
.scr-fs { position: fixed; right: 14px; bottom: 14px; font-size: 13px; padding: 6px 10px;
  background: #1a2230; color: #9fb2c8; border: 1px solid #2a3648; border-radius: 6px; cursor: pointer; opacity: .5; }
.scr-fs:hover { opacity: 1; }
.scr-conn { position: fixed; left: 14px; bottom: 14px; font-size: 12px; color: #4d5f75; }
.scr-conn.reconnecting { color: #ffd479; }

/* screen wall mode */
.scr-root.scr-wall-mode { justify-content: flex-start; align-items: stretch; text-align: left; padding: 3vh 4vw; }
.scr-wall-head { display: flex; justify-content: space-between; align-items: center; gap: 2vw; margin-bottom: 2vh; }
.scr-wall-qr { width: clamp(90px, 9vw, 140px); background: #fff; padding: 8px; border-radius: 10px; }
.scr-wall-list { display: flex; flex-direction: column; gap: 1.6vh; }
.scr-wall-item { background: #131a26; border-left: 4px solid #3d5a80; border-radius: 8px; padding: 1.4vh 1.6vw; }
.scr-wall-item.prio-high { border-left-color: #e5605c; }
.scr-wall-meta { font-size: clamp(.9rem, 1.6vw, 1.3rem); color: #8fa2b8; margin-bottom: .5vh; }
.scr-wall-text { font-size: clamp(1.25rem, 2.5vw, 2.3rem); font-weight: 600; line-height: 1.25; }
.scr-wall-empty { font-size: clamp(1.4rem, 3vw, 2.4rem); color: #6f89a6; text-align: center; margin-top: 10vh; }
.scr-wall-hint { margin-top: 2.5vh; font-size: clamp(1rem, 1.8vw, 1.6rem); color: #6f89a6; text-align: center; }

/* admin */
.a-header { display: flex; justify-content: space-between; align-items: center;
  background: var(--ink); color: #fff; padding: 10px 16px; }
.a-wrap { max-width: 1100px; margin: 16px auto; padding: 0 12px; display: grid; gap: 14px; }
.a-card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px; }
.a-card table { border-collapse: collapse; width: 100%; font-size: 13px; }
.a-card th, .a-card td { border: 1px solid var(--border); padding: 4px 8px; text-align: left; vertical-align: top; }
.a-card th { background: #f0f3f6; }
.sem-row { display: flex; gap: 12px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.sem-row .grow { flex: 1; }
.qr-thumb { width: 56px; height: 56px; }
.status-flow { display: flex; gap: 6px; flex-wrap: wrap; margin: 8px 0; }
.a-actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
progress { width: 200px; }
code { background: #eef2f6; padding: 1px 5px; border-radius: 4px; }