:root {
  --bg: var(--tg-theme-bg-color, #14161d);
  --card: var(--tg-theme-secondary-bg-color, #1e2029);
  --text: var(--tg-theme-text-color, #ffffff);
  --hint: var(--tg-theme-hint-color, #8b90a0);
  --accent: var(--tg-theme-button-color, #3a8fff);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --radius: 16px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  padding: 0 16px calc(24px + env(safe-area-inset-bottom));
  overscroll-behavior-y: contain;
}

h1 { font-size: 28px; margin: 12px 0 8px; }
h2 { font-size: 22px; line-height: 1.3; margin: 0; font-weight: 600; }
h3 { font-size: 15px; margin: 0 0 10px; text-transform: uppercase; letter-spacing: .06em; color: var(--hint); }

.screen { padding-top: 16px; animation: fade .22s ease; }
.center { min-height: 82vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.loader { min-height: 70vh; display: flex; align-items: center; justify-content: center; }
.spinner {
  width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,.15); border-top-color: var(--accent);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero { font-size: 64px; }
.lead { color: var(--hint); max-width: 320px; }

.btn {
  display: block; width: 100%; padding: 15px 18px; border: 0; border-radius: var(--radius);
  background: var(--card); color: var(--text); font-size: 16px; font-weight: 600;
  cursor: pointer; transition: transform .1s, opacity .15s; text-align: center;
}
.btn:active { transform: scale(.98); }
.btn.primary { background: var(--accent); color: var(--accent-text); }
.btn.small { width: auto; padding: 14px 18px; flex: 0 0 auto; }
.btn[disabled] { opacity: .5; }
.ghost { background: none; border: 0; color: var(--hint); font-size: 17px; padding: 8px; cursor: pointer; }

.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 14px 0; }
.block { margin: 26px 0; }
.hint { color: var(--hint); font-size: 14px; margin: 8px 0 0; }
.err { color: #ff6b6b; font-size: 14px; min-height: 18px; margin: 8px 0 0; }

.card { background: var(--card); border-radius: 20px; padding: 20px; }

/* --- тест --- */
.topbar { display: flex; align-items: center; gap: 12px; }
.progress { flex: 1; height: 6px; border-radius: 3px; background: rgba(255,255,255,.12); overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); width: 0; transition: width .25s ease; }
.counter { color: var(--hint); font-size: 14px; min-width: 44px; text-align: right; }
.qwrap { min-height: 34vh; display: flex; flex-direction: column; justify-content: center; padding: 24px 4px; }
.sphere-tag { color: var(--hint); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 12px; }
.scale { display: flex; flex-direction: column; gap: 9px; }
.scale button {
  width: 100%; padding: 14px 16px; border: 0; border-radius: 14px; cursor: pointer;
  background: var(--card); color: var(--text); font-size: 15px; text-align: left;
  display: flex; align-items: center; gap: 12px; transition: transform .1s;
}
.scale button:active { transform: scale(.98); }
.scale button.on { background: var(--accent); color: var(--accent-text); }
.scale .dot { width: 22px; height: 22px; border-radius: 50%; background: rgba(255,255,255,.14);
  display: grid; place-items: center; font-size: 12px; font-weight: 700; flex: 0 0 auto; }

/* --- тип --- */
.type-card { text-align: center; }
.type-emoji { font-size: 54px; line-height: 1; }
.type-name { font-size: 24px; font-weight: 700; margin-top: 6px; }
.type-desc { color: var(--hint); margin-top: 6px; }
.type-second { color: var(--hint); font-size: 14px; margin-top: 12px; }

/* --- списки --- */
.item {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  background: var(--card); border-radius: 14px; margin-bottom: 9px; cursor: pointer;
}
.item:active { transform: scale(.99); }
.item .nm { flex: 1; font-weight: 600; }
.item .pct { font-weight: 700; }
.item .sub { color: var(--hint); font-size: 13px; font-weight: 400; }
.empty { color: var(--hint); font-size: 14px; }

.code-row { display: flex; gap: 9px; }
.code-input {
  flex: 1; padding: 15px 16px; border: 0; border-radius: var(--radius);
  background: var(--card); color: var(--text); font-size: 18px;
  letter-spacing: .22em; text-transform: uppercase; font-weight: 700;
}
.code-input::placeholder { color: var(--hint); letter-spacing: .22em; }

/* --- пара --- */
.back-link { padding-left: 0; }
.pair-head { text-align: center; margin-top: 8px; }
.pair-names { color: var(--hint); font-size: 14px; }
.pair-pct { font-size: 56px; font-weight: 800; line-height: 1.1; margin: 4px 0; }
.pair-level { color: var(--hint); }
.spheres { margin: 18px 0; }
.sphere { margin-bottom: 14px; }
.sphere .lbl { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 6px; }
.sphere .track { height: 8px; border-radius: 4px; background: rgba(255,255,255,.12); overflow: hidden; }
.sphere .fill { height: 100%; background: var(--accent); border-radius: 4px; }

.fr { background: var(--card); border-radius: 14px; padding: 14px 16px; margin-bottom: 9px; }
.fr .topic { font-weight: 600; margin-bottom: 6px; }
.fr .q { color: var(--hint); font-size: 13px; font-style: italic; margin-bottom: 8px; }
.fr .vs { font-size: 14px; display: flex; flex-direction: column; gap: 2px; }
.fr .vs span b { font-weight: 600; }

.paywall { background: var(--card); border-radius: 18px; padding: 20px; }
.paywall ul { margin: 10px 0 16px; padding-left: 20px; color: var(--hint); font-size: 14px; }
.paywall li { margin-bottom: 4px; }
.deep-text { white-space: pre-wrap; background: var(--card); border-radius: 18px; padding: 20px; font-size: 15px; }

/* --- админка --- */
.tabs { display: flex; gap: 8px; overflow-x: auto; padding: 4px 0 14px; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs button {
  flex: 0 0 auto; padding: 9px 14px; border: 0; border-radius: 999px; cursor: pointer;
  background: var(--card); color: var(--hint); font-size: 14px; font-weight: 600;
}
.tabs button.on { background: var(--accent); color: var(--accent-text); }

.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 20px; }
.tile { background: var(--card); border-radius: 14px; padding: 14px 16px; }
.tile .k { color: var(--hint); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.tile .v { font-size: 26px; font-weight: 800; margin-top: 4px; }
.tile .s { color: var(--hint); font-size: 12px; }

.arow { display: flex; align-items: center; gap: 10px; padding: 12px 14px;
  background: var(--card); border-radius: 12px; margin-bottom: 8px; font-size: 14px; }
.arow .nm { flex: 1; min-width: 0; }
.arow .nm b { display: block; }
.arow .nm small { color: var(--hint); }
.arow .val { font-weight: 700; white-space: nowrap; }

.search { display: flex; gap: 8px; margin-bottom: 12px; }
.search input { flex: 1; padding: 12px 14px; border: 0; border-radius: 12px;
  background: var(--card); color: var(--text); font-size: 15px; }

.qedit { background: var(--card); border-radius: 12px; padding: 12px 14px; margin-bottom: 8px; }
.qedit .code { color: var(--hint); font-size: 12px; font-weight: 700; letter-spacing: .06em; }
.qedit textarea, .qedit input {
  width: 100%; margin-top: 6px; padding: 10px 12px; border: 0; border-radius: 10px;
  background: rgba(255,255,255,.08); color: var(--text); font-size: 14px;
  font-family: inherit; resize: vertical;
}
.qedit .wrow { display: flex; align-items: center; gap: 10px; margin-top: 6px; }
.qedit .wrow label { color: var(--hint); font-size: 13px; white-space: nowrap; }
.qedit .wrow input { width: 90px; margin-top: 0; text-align: center; }

.vecgrid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px; margin-top: 8px; }
.vecgrid input { padding: 8px 0; text-align: center; border: 0; border-radius: 8px;
  background: rgba(255,255,255,.08); color: var(--text); font-size: 14px; }

.sticky-save { position: sticky; bottom: 12px; margin-top: 14px; z-index: 5; }
.ok { color: #4ade80; font-size: 14px; min-height: 18px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; word-break: break-all; }
.txt { background: var(--card); border-radius: 12px; padding: 12px 14px; margin-bottom: 8px; font-size: 13px; }
.txt .head { display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.txt .body { color: var(--hint); margin-top: 8px; white-space: pre-wrap; max-height: 120px; overflow: hidden; }
.danger { background: rgba(255,90,90,.16); color: #ff8f8f; border: 0; border-radius: 10px;
  padding: 8px 12px; font-size: 13px; font-weight: 600; cursor: pointer; flex: 0 0 auto; }