/* Гайд про 12 ритмических рисунков: тренажёр и схемы. Переменные, шрифт Space Grotesk и шапка приходят из guides.css / guide-shell.css. */
.rt, .rt-scheme { --rt-down: var(--accent-strong, #f0b95f); --rt-up: #8f9bff; --rt-mute: var(--text-dim); --rt-bass: var(--bass, #35ad78); --rt-ok: #4fbf72;
}
.rt { margin: 20px 0 26px; }

/* карточка тренажёра: выбор рисунка, схема, одна строка управления, остальное в сворачиваемых блоках */
.rt-trainer { display: grid; gap: 12px; background: var(--bg-raised); border: 1px solid var(--line-strong); border-radius: 20px; padding: 18px; min-width: 0; }
.rt-pick { display: flex; gap: 8px; align-items: stretch; }
.rt-pick select { flex: 1 1 auto; min-width: 0; background: var(--bg-sunken, #0d0d0e); color: var(--text); border: 1px solid var(--line-strong); border-radius: 12px; padding: 0 14px; height: 44px; font: 700 16px var(--font-ui, inherit); cursor: pointer; }
.rt-pick select:hover, .rt-pick select:focus-visible { border-color: var(--accent); outline: none; }
.rt-arrow { flex: 0 0 auto; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line-strong); background: var(--bg-sunken, #0d0d0e); color: var(--text); font: 700 18px/1 var(--font-ui, inherit); cursor: pointer; padding: 0; transition: border-color .15s; }
.rt-pick .rt-arrow { height: 44px; border-radius: 12px; }
.rt-arrow:hover { border-color: var(--accent); }
.rt-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; }
.rt-tag { display: inline-block; border: 1px solid var(--line-strong); border-radius: 8px; padding: 2px 9px; font-size: 12px; font-weight: 600; color: var(--text-dim); }
.rt-tag--pm { color: var(--accent-strong); border-color: color-mix(in srgb, var(--accent) 55%, transparent); }
.rt-style { font-size: 13px; color: var(--text-faint); }

.rt-grid { overflow-x: auto; padding-bottom: 4px; }
.rt-steps { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(40px, 1fr); gap: 6px; min-width: min-content; }
.rt-step { background: var(--bg-sunken, #0d0d0e); border: 1px solid var(--line); border-radius: 12px; padding: 7px 0; text-align: center; transition: background .06s, border-color .06s, transform .06s; }
.rt-step.beat { border-color: var(--line-strong); }
.rt-cnt { font-size: 12px; font-weight: 700; color: var(--text-faint); height: 15px; line-height: 15px; }
.rt-step.beat .rt-cnt { color: var(--text); }
.rt-sym { font-size: 28px; font-weight: 700; height: 40px; display: flex; align-items: center; justify-content: center; }
.rt-lab { font-size: 11px; font-weight: 500; color: var(--text-faint); height: 12px; }
.rt-step.D .rt-sym { color: var(--rt-down); } .rt-step.U .rt-sym { color: var(--rt-up); } .rt-step.x .rt-sym { color: var(--rt-mute); } .rt-step.B .rt-sym { color: var(--rt-bass); }
.rt-step.rest .rt-sym { color: var(--text-faint); font-size: 20px; }
.rt-step.now { background: color-mix(in srgb, var(--accent) 18%, transparent); border-color: var(--accent); transform: translateY(-3px); }
.rt-barline { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; font-weight: 600; color: var(--text-faint); min-height: 16px; margin-top: -4px; }

/* одна строка управления: играть, проверка, темп */
.rt-main { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 16px; }
.rt-btnrow, .rt-tempo { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.rt-tempo output { min-width: 46px; text-align: center; font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; }
.rt-tempo small { color: var(--text-faint); font-size: 11px; font-weight: 700; letter-spacing: .08em; margin-left: -4px; }
.rt-btn { font: inherit; font-size: 14px; font-weight: 700; line-height: 1; border: 1px solid var(--line-strong); background: var(--bg-sunken, #0d0d0e); color: var(--text); border-radius: 999px; padding: 11px 18px; cursor: pointer; transition: border-color .15s, background .15s; }
.rt-btn:hover { border-color: var(--accent); }
.rt-btn--primary { background: var(--accent); color: var(--on-accent, #1c1206); border-color: transparent; min-width: 120px; }
.rt-btn--primary:hover { background: var(--accent-strong); border-color: transparent; }
.rt-btn[aria-pressed="true"] { border-color: var(--accent); }
.rt-btn--small { padding: 7px 13px; font-size: 12px; }
.rt-slider { width: 100%; accent-color: var(--accent); margin: 0; }

/* дополнительные настройки: свёрнуты, пока не нужны */
.rt-more { border-top: 1px solid var(--line); padding-top: 10px; }
.rt-more summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--text-dim); }
.rt-more summary::-webkit-details-marker { display: none; }
.rt-more summary::after { content: '+'; font-size: 18px; line-height: 1; color: var(--accent-strong); }
.rt-more[open] summary { color: var(--accent-strong); margin-bottom: 10px; }
.rt-more[open] summary::after { content: '\2212'; }
.rt-hint { color: var(--text-faint); font-size: 13px; margin-top: 8px; line-height: 1.45; }
.rt-opts, .rt-speed { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; color: var(--text-dim); font-size: 14px; }
.rt-opts label { display: inline-flex; gap: 6px; align-items: center; cursor: pointer; }
.rt-opts input[type=checkbox], .rt-speed input[type=checkbox], .rt-excheck { accent-color: var(--accent); }
.rt-opts select, .rt-speed input[type=number] { background: var(--bg-sunken, #0d0d0e); color: var(--text); border: 1px solid var(--line-strong); border-radius: 8px; padding: 4px 8px; font: 600 13px var(--font-ui, inherit); }
.rt-speed input[type=number] { width: 58px; }
.rt-state { font-size: 13px; font-weight: 700; color: var(--accent-strong); }
.rt-pad { display: none; width: 100%; margin-top: 10px; padding: 18px; border-radius: 14px; border: 2px dashed var(--line-strong); background: var(--bg-sunken, #0d0d0e); color: var(--text-dim); font: 700 15px var(--font-ui, inherit); cursor: pointer; }
.rt-pad.on { display: block; }
.rt-pad:active, .rt-pad.tap { border-color: var(--accent); color: var(--accent-strong); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.rt-result { display: none; margin-top: 10px; background: var(--bg-sunken, #0d0d0e); border: 1px solid var(--line); border-radius: 12px; padding: 14px; font-size: 15px; line-height: 1.5; }
.rt-result.on { display: block; }
.rt-result b { color: var(--accent-strong); font-size: 18px; }
@media (max-width: 560px) { .rt-main { justify-content: flex-start; } .rt-btn--primary { min-width: 0; flex: 1 1 auto; } }

/* схема рисунка в секции статьи: только схема и одна кнопка */
.rt-scheme { background: var(--bg-raised); border: 1px solid var(--line); border-radius: 16px; padding: 12px; margin: 12px 0 14px; }
.rt-scheme .rt-steps { grid-auto-columns: minmax(30px, 1fr); gap: 5px; overflow-x: auto; }
.rt-scheme .rt-step { padding: 5px 0; }
.rt-scheme .rt-sym { font-size: 22px; height: 30px; }
.rt-scheme-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 10px; }
.rt-scheme-foot .rt-btn { margin-left: auto; }

/* текст секции: подписи абзацев и упражнения в одну строку */
.g-article .rt-lead { color: var(--text); }
.g-article li.rt-exitem { display: grid; grid-template-columns: 22px 1fr auto; gap: 10px; align-items: center; list-style: none; margin-left: -22px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-raised); }
.g-article li.rt-exitem + li.rt-exitem { margin-top: 6px; }
.g-article li.rt-exitem.done { border-color: color-mix(in srgb, var(--rt-ok) 55%, transparent); }
.rt-excheck { width: 18px; height: 18px; cursor: pointer; }
.rt-exitem .rt-btn { white-space: nowrap; }
@media (max-width: 560px) { .g-article li.rt-exitem { grid-template-columns: 22px 1fr; } .rt-exitem .rt-btn { grid-column: 2; justify-self: start; } }