:root {
  --bg: #f4f4f6;
  --card: #ffffff;
  --text: #15151e;
  --muted: #6b6b78;
  --line: #e2e2e8;
  --accent: #e10600;
  --accent-text: #ffffff;
  --ok: #12805c;
  --warn: #a15c00;
  --err: #c0160f;
  --info: #2b5cad;
  --btn: #ececf1;
  --btn-text: #15151e;
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f0f15;
    --card: #1b1b24;
    --text: #f2f2f5;
    --muted: #9a9aab;
    --line: #2e2e3b;
    --btn: #2a2a36;
    --btn-text: #f2f2f5;
    --ok: #39c48f;
    --warn: #f0a640;
    --err: #ff6b63;
    --info: #7aa7ff;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f0f15;
  --card: #1b1b24;
  --text: #f2f2f5;
  --muted: #9a9aab;
  --line: #2e2e3b;
  --btn: #2a2a36;
  --btn-text: #f2f2f5;
  --ok: #39c48f;
  --warn: #f0a640;
  --err: #ff6b63;
  --info: #7aa7ff;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}
main, .top, .foot { max-width: 640px; margin: 0 auto; padding: 0 16px; }
h1, h2, h3 { margin: 0; line-height: 1.2; }
h2 { font-size: 1.1rem; }
h3 { font-size: 0.95rem; margin-bottom: 4px; }
.dim { color: var(--muted); }
kbd {
  font: 12px ui-monospace, monospace;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 0 4px;
}

.top { padding-top: 20px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 40px; height: 40px; border-radius: 10px; flex: none;
  background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath d='M7 20c3-8 6 8 9 0s6 8 9 0' stroke='white' stroke-width='3' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") center/80% no-repeat;
}
h1 { font-size: 1.35rem; font-weight: 800; letter-spacing: -0.01em; }
.sub { margin: 0; color: var(--muted); font-size: 0.9rem; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 14px;
}

/* Status */
.status { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.95rem; }
.status .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.status[data-kind="playing"] .dot { background: var(--info); }
.status[data-kind="busy"] .dot { background: var(--warn); animation: pulse 1s infinite; }
.status[data-kind="synced"] .dot { background: var(--ok); }
.status[data-kind="error"] .dot { background: var(--err); }
@keyframes pulse { 50% { opacity: 0.3; } }

.delay { display: flex; flex-direction: column; align-items: center; margin: 14px 0 16px; text-align: center; }
.label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); font-weight: 600; }
.big { font-size: clamp(2.6rem, 12vw, 3.6rem); font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; line-height: 1.1; }
.note { min-height: 1.4em; color: var(--muted); font-size: 0.9rem; }

/* Knoppen */
.actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btn {
  appearance: none;
  border: 0;
  border-radius: 10px;
  padding: 14px 12px;
  font: inherit;
  font-weight: 700;
  background: var(--btn);
  color: var(--btn-text);
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 0.05s, filter 0.15s;
}
.btn:hover:not(:disabled) { filter: brightness(1.05); }
.btn:active:not(:disabled) { transform: scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.primary { background: var(--text); color: var(--bg); }
.btn.accent { background: var(--accent); color: var(--accent-text); }
.btn.small { padding: 8px 12px; font-size: 0.9rem; }
.btn.ghost { background: transparent; border: 1px solid var(--line); }
button:focus-visible, select:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Voortgang */
.progress { margin-top: 14px; display: flex; flex-direction: column; gap: 6px; font-size: 0.9rem; color: var(--muted); }
.progress[hidden] { display: none; }
.bar { height: 8px; background: var(--btn); border-radius: 99px; overflow: hidden; }
.fill { height: 100%; width: 0; background: var(--accent); transition: width 0.15s linear; }

.message { margin-top: 14px; padding: 10px 12px; border-radius: 10px; font-size: 0.92rem; border: 1px solid var(--line); }
.message[data-kind="warn"] { border-color: color-mix(in srgb, var(--warn) 50%, transparent); background: color-mix(in srgb, var(--warn) 10%, transparent); }
.message[data-kind="error"] { border-color: color-mix(in srgb, var(--err) 50%, transparent); background: color-mix(in srgb, var(--err) 10%, transparent); }
.message[data-kind="ok"] { border-color: color-mix(in srgb, var(--ok) 50%, transparent); background: color-mix(in srgb, var(--ok) 10%, transparent); }

.result { margin-top: 14px; font-size: 0.92rem; }
.result p { margin: 0 0 8px; }
.result canvas { width: 100%; height: 90px; display: block; margin-bottom: 8px; }

/* Fijnafstelling */
.nudge { margin-top: 18px; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.nudge-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: center; }
.offset {
  appearance: none; border: 0; background: none; color: var(--text); font: inherit;
  font-weight: 700; font-variant-numeric: tabular-nums; min-width: 78px; cursor: pointer;
}
.hint { font-size: 0.8rem; color: var(--muted); text-align: center; }

/* Meters */
.meters { margin-top: 18px; display: grid; gap: 6px; }
.meter { display: grid; grid-template-columns: 110px 1fr; align-items: center; gap: 10px; font-size: 0.85rem; color: var(--muted); }
.track { height: 6px; background: var(--btn); border-radius: 99px; overflow: hidden; }
.level { height: 100%; width: 0; background: var(--ok); transition: width 0.08s linear; }
.level.radio { background: var(--info); }

.volume { margin-top: 14px; display: grid; grid-template-columns: 110px 1fr; align-items: center; gap: 10px; font-size: 0.85rem; color: var(--muted); }
.volume input { width: 100%; accent-color: var(--accent); }

/* Uitleg */
.how ol { padding-left: 1.2em; margin: 10px 0; }
.how li { margin-bottom: 6px; }
.how p { margin: 0; font-size: 0.9rem; }

/* Instellingen */
.settings summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; }
.settings summary::-webkit-details-marker { display: none; }
.settings summary::after { content: "▾"; color: var(--muted); transition: transform 0.2s; }
.settings[open] summary::after { transform: rotate(180deg); }
.settings[open] summary { margin-bottom: 12px; }
fieldset { border: 0; padding: 0; margin: 0 0 12px; }
legend { font-weight: 600; margin-bottom: 6px; font-size: 0.95rem; }
.radio-opt { display: block; margin-bottom: 6px; font-size: 0.92rem; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.grid label { display: flex; flex-direction: column; gap: 4px; font-size: 0.85rem; color: var(--muted); font-weight: 600; min-width: 0; }
.grid label[hidden] { display: none; }
select, input[type="url"], input[type="number"] {
  font: inherit; font-size: 0.95rem; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; width: 100%; min-width: 0;
}
input[type="number"] { width: 110px; }
.check { display: flex; gap: 8px; align-items: center; font-size: 0.92rem; }
.sub-block { border-top: 1px solid var(--line); margin-top: 14px; padding-top: 12px; }
.sub-block p { margin: 0 0 8px; font-size: 0.88rem; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.foot { font-size: 0.8rem; text-align: center; padding-bottom: 24px; }

@media (max-width: 480px) {
  .grid { grid-template-columns: 1fr; }
  .meter, .volume { grid-template-columns: 116px 1fr; }
  .card { padding: 16px; }
}