/* ── LAYOUT ── */
.mt-main   { max-width: 1060px; margin: 0 auto; padding: 24px 24px 60px; }
.mt-layout { display: grid; grid-template-columns: 1fr 280px; gap: 20px; align-items: start; }
.mt-right  { position: sticky; top: 20px; }

/* ── METRONOME CARD ── */
.mt-card { padding: 24px; display: flex; flex-direction: column; align-items: center; }

/* BPM DISPLAY CONTROLS */
.mt-bpm-row { display: flex; align-items: center; justify-content: center; gap: 20px; margin-bottom: 16px; }
.mt-bpm-btn { width: 44px; height: 44px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg-muted); color: var(--text); font-size: 20px; font-weight: 600; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.1s; user-select: none; }
.mt-bpm-btn:hover { background: var(--border); }
.mt-bpm-btn:active { transform: scale(0.95); }
.mt-bpm-display-wrap { display: flex; flex-direction: column; align-items: center; }
.mt-bpm-num { font-family: var(--font-mono); font-size: 64px; font-weight: 600; color: var(--text); line-height: 1; letter-spacing: -0.02em; }
.mt-bpm-lbl { font-size: 11px; font-weight: 600; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.05em; margin-top: 4px; }

/* SLIDER */
.mt-slider-wrap { width: 100%; max-width: 400px; margin-bottom: 24px; }
.mt-slider { width: 100%; height: 6px; border-radius: 3px; background: var(--border); outline: none; -webkit-appearance: none; cursor: pointer; }
.mt-slider::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--text); border: 2px solid var(--bg-card); box-shadow: 0 1px 3px rgba(0,0,0,0.15); transition: transform 0.1s; }
.mt-slider::-webkit-slider-thumb:hover { transform: scale(1.15); }
.mt-slider::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--text); border: 2px solid var(--bg-card); box-shadow: 0 1px 3px rgba(0,0,0,0.15); transition: transform 0.1s; cursor: pointer; }
.mt-slider::-moz-range-thumb:hover { transform: scale(1.15); }

/* BEAT VISUALIZER */
.mt-beats { display: flex; gap: 8px; justify-content: center; align-items: center; min-height: 32px; margin-bottom: 24px; width: 100%; }
.mt-beat-dot { width: 16px; height: 16px; border-radius: 50%; background: var(--bg-muted); border: 2px solid var(--border); transition: all 0.05s ease; }
.mt-beat-dot.accented-base { border-color: var(--text); }
.mt-beat-dot.active { background: var(--text); transform: scale(1.15); box-shadow: 0 0 10px rgba(var(--text-rgb, 26, 26, 26), 0.2); }
.mt-beat-dot.active.accented { background: #d4f044; border-color: #d4f044; box-shadow: 0 0 12px rgba(212, 240, 68, 0.4); }

/* CONTROLS */
.mt-controls { display: flex; gap: 12px; margin-bottom: 24px; width: 100%; max-width: 400px; justify-content: center; }
.mt-controls .btn { flex: 1; height: 44px; display: flex; align-items: center; justify-content: center; font-weight: 600; min-width: 120px; }

/* CONFIG ROWS */
.mt-config { width: 100%; border-top: 1px solid var(--border); padding-top: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 400px; }
.mt-config-group { display: flex; flex-direction: column; gap: 6px; }
.mt-config-group .label { font-size: 11px; font-weight: 600; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.05em; }
.mt-select { width: 100%; height: 38px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg-card); color: var(--text); padding: 0 10px; outline: none; cursor: pointer; font-size: 13px; font-weight: 500; }
.mt-select:focus { border-color: var(--text); }

/* ── RESPONSIVE ── */
@media (max-width: 800px) {
  .mt-layout { grid-template-columns: 1fr; }
  .mt-right { position: static; }
}
@media (max-width: 560px) {
  .mt-main { padding: 16px 14px 40px; }
  .mt-config { grid-template-columns: 1fr; }
}

/* ── LANG SWITCHER ── */
.lang-switcher { position: relative; }
.lang-current { display:flex;align-items:center;gap:5px;padding:5px 10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);font-size:12px;font-weight:500;color:var(--text);cursor:pointer;font-family:var(--font-sans); }
.lang-code { font-family:var(--font-mono);font-size:11px;color:var(--text-muted); }
.lang-menu { display:none;position:absolute;top:calc(100% + 6px);right:0;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:0 8px 24px rgba(0,0,0,.10);z-index:200;padding:6px;width:210px;max-height:340px;overflow-y:auto; }
.lang-menu.open { display:flex;flex-direction:column; }
.lang-option { display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius);font-size:13px;color:var(--text);text-decoration:none;transition:background .12s; }
.lang-option:hover { background:var(--bg-muted); }
.lang-option.active { background:var(--accent);font-weight:500; }