/* Math with Magic · local preview styles. No external fonts or assets. */

:root {
  --bg: #f5f4f0;
  --surface: #ffffff;
  --surface-2: #f1efe9;
  --surface-3: #e9e6de;
  --text: #1a1d24;
  --text-muted: #5f6470;
  --line: #e2dfd6;
  --line-strong: #cfcbc0;
  --accent: #1f5f93;
  --accent-ink: #ffffff;
  --accent-soft: #e4eef8;
  --good: #1d6b47;
  --good-soft: #e2f2e9;
  --warn: #7f4a12;
  --warn-soft: #faefdf;
  --bad: #9a2e2e;
  --bad-soft: #fbe7e7;
  --focus: #d8891c;
  --series-0: #1f5f93;
  --series-1: #c2632b;
  --bar: #4f86b8;
  --grid: #e6e3da;
  --shadow: 0 1px 1px rgba(20, 24, 40, 0.04), 0 8px 24px rgba(20, 24, 40, 0.05);
  --radius: 16px;
  --radius-sm: 10px;
  --gap: 18px;
  --main-pad-y: 24px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c0d11;
    --surface: #15171d;
    --surface-2: #1d2027;
    --surface-3: #262a33;
    --text: #ecedf1;
    --text-muted: #a3a8b5;
    --line: #262a33;
    --line-strong: #363b46;
    --accent: #85b7ea;
    --accent-ink: #0c0d11;
    --accent-soft: #1b2a3b;
    --good: #7fd1a3;
    --good-soft: #163021;
    --warn: #f0b76a;
    --warn-soft: #36270f;
    --bad: #f39a9a;
    --bad-soft: #3a1a1a;
    --focus: #f6c453;
    --series-0: #85b7ea;
    --series-1: #f0a06a;
    --bar: #6ea2d6;
    --grid: #2a2f3a;
    --shadow: 0 1px 1px rgba(0, 0, 0, 0.5), 0 10px 30px rgba(0, 0, 0, 0.4);
  }
}

:root[data-theme="dark"] {
  --bg: #0c0d11;
  --surface: #15171d;
  --surface-2: #1d2027;
  --surface-3: #262a33;
  --text: #ecedf1;
  --text-muted: #a3a8b5;
  --line: #262a33;
  --line-strong: #363b46;
  --accent: #85b7ea;
  --accent-ink: #0c0d11;
  --accent-soft: #1b2a3b;
  --good: #7fd1a3;
  --good-soft: #163021;
  --warn: #f0b76a;
  --warn-soft: #36270f;
  --bad: #f39a9a;
  --bad-soft: #3a1a1a;
  --focus: #f6c453;
  --series-0: #85b7ea;
  --series-1: #f0a06a;
  --bar: #6ea2d6;
  --grid: #2a2f3a;
  --shadow: 0 1px 1px rgba(0, 0, 0, 0.5), 0 10px 30px rgba(0, 0, 0, 0.4);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

[hidden] { display: none !important; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 8px; top: -60px;
  padding: 10px 14px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 8px;
  z-index: 10;
}
.skip-link:focus { top: 8px; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark { width: 38px; height: 38px; flex: none; }
.mark-bg { fill: #1f2a44; }
.mark-circle { fill: #f6c453; }
.mark-triangle { fill: #7bd3c0; opacity: 0.92; }
.mark-square { fill: #f3f4f8; opacity: 0.95; }
.mark-line { stroke: #f3f4f8; stroke-width: 2.5; stroke-linecap: round; }
.brand-text p { margin: 0; line-height: 1.2; }
.brand-name { font-weight: 700; font-size: 1.02rem; letter-spacing: -0.01em; }
.brand-sub { font-size: 0.78rem; color: var(--text-muted); }
.header-controls { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.learner-label { font-size: 0.88rem; color: var(--text-muted); padding: 0 8px; }

/* Layout */
main {
  flex: 1;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: var(--main-pad-y) 18px 48px;
}
main:focus { outline: none; }

/* Welcome gate: full-bleed drafting-grid stage, then a narrow form that is usable at once. */
.entry-stage {
  position: relative;
  margin: calc(-1 * var(--main-pad-y)) calc(50% - 50vw) 28px;
  padding: 30px 18px 16px;
  border-bottom: 1px solid var(--line);
  background-color: var(--surface);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: center top;
}
.entry-art { max-width: 560px; margin: 0 auto; color: var(--text); }
.entry-svg { display: block; width: 100%; height: auto; }
.art-rule { stroke: var(--line-strong); stroke-width: 1; }
.art-tick {
  fill: currentColor;
  transform-box: fill-box;
  transform-origin: center;
  animation: art-settle 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  animation-delay: var(--d, 0s);
}
.art-tick-1 { --dx: -110px; --dy: 34px; --r: -14deg; --d: 0s; }
.art-tick-2 { --dx: 60px; --dy: -22px; --r: 9deg; --d: 0.05s; }
.art-tick-3 { --dx: -70px; --dy: -36px; --r: 21deg; --d: 0.1s; }
.art-tick-4 { --dx: 90px; --dy: 40px; --r: -7deg; --d: 0.15s; }
.art-tick-5 { --dx: -120px; --dy: -14px; --r: 6deg; --d: 0.2s; }
.art-tick-6 { --dx: 40px; --dy: 30px; --r: -19deg; --d: 0.25s; }
.art-tick-7 { --dx: -40px; --dy: -52px; --r: 12deg; --d: 0.3s; }
.art-tick-8 { --dx: 80px; --dy: 18px; --r: 17deg; --d: 0.35s; }
.art-tick-9 { --dx: -90px; --dy: 20px; --r: -23deg; --d: 0.4s; }
.art-tick-10 { --dx: 50px; --dy: -30px; --r: 5deg; --d: 0.45s; }
.art-num {
  fill: var(--text-muted);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  animation: art-fade 0.2s ease-out both;
  animation-delay: 0.85s;
}
.art-mark {
  margin: 10px 0 0;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  animation: art-fade 0.25s ease-out both;
  animation-delay: 0.95s;
}
.entry-art.is-done .art-tick, .entry-art.is-done .art-num, .entry-art.is-done .art-mark { animation: none; }
@keyframes art-settle {
  from { transform: translate(var(--dx), var(--dy)) rotate(var(--r)); opacity: 0.3; }
  to { transform: none; opacity: 1; }
}
@keyframes art-fade {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: none; }
}
#entry-skip { position: absolute; top: 8px; right: 12px; background: var(--surface); border-color: var(--line-strong); }
.entry-form { max-width: 420px; margin: 0 auto; }
.code-word {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.95em;
  padding: 1px 7px;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
}
.site-footer {
  border-top: 1px solid var(--line);
  padding: 14px 18px;
  font-size: 0.84rem;
  color: var(--text-muted);
  text-align: center;
}
.site-footer p { margin: 0; }

h1 { font-size: 1.85rem; line-height: 1.15; margin: 6px 0 10px; letter-spacing: -0.02em; font-weight: 700; }
h2 { font-size: 1.28rem; line-height: 1.3; margin: 0 0 8px; letter-spacing: -0.01em; }
h3 { font-size: 1.05rem; margin: 0; }
.h-small { font-size: 1.08rem; }
h1:focus, h2:focus, .confirm-title:focus { outline: none; }
p { margin: 0 0 12px; }
.lede { color: var(--text-muted); font-size: 1.06rem; max-width: 60ch; }
.eyebrow {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.fineprint { font-size: 0.86rem; color: var(--text-muted); }
.meta { color: var(--text-muted); font-size: 0.92rem; }
.status { min-height: 1.4em; margin: 0 0 8px; color: var(--text-muted); font-size: 0.95rem; }
.status:empty { display: none; }
.error { color: var(--bad); font-weight: 600; margin: 8px 0; }
.error:empty { display: none; }
.notice { margin: 8px 0; padding: 10px 12px; border-radius: var(--radius-sm); background: var(--warn-soft); color: var(--text); }
.notice:empty { display: none; }
.outcome { max-width: 60ch; }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin: 0 0 var(--gap);
  box-shadow: var(--shadow);
}

/* Disclosure summaries (concept, reference, tutor, steps) */
.card > summary, .steps > summary {
  list-style: none;
  cursor: pointer;
  min-height: 44px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-radius: var(--radius);
}
.card > summary::-webkit-details-marker, .steps > summary::-webkit-details-marker { display: none; }
.card > summary::before, .steps > summary::before { content: "▸ "; color: var(--text-muted); }
.card[open] > summary::before, .steps[open] > summary::before { content: "▾ "; }
.summary-title { font-weight: 700; }
.summary-sub { font-size: 0.85rem; color: var(--text-muted); }

.concept-card, .tutor-card, .reference-panel { padding: 0; }
.concept-card > summary, .tutor-card > summary, .reference-panel > summary { padding: 14px 20px; }
.concept-body { padding: 0 20px 14px; }
.concept-body p { margin: 0 0 8px; }
.concept-body ol { margin: 0; padding-left: 22px; }
.concept-body li { margin: 2px 0; }

/* Buttons and inputs */
.btn {
  min-height: 44px;
  min-width: 44px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 120ms ease;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.25;
}
.btn:hover { background: var(--accent-soft); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.08); background: var(--accent); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--surface-2); }
.btn-ghost[aria-pressed="true"] { background: var(--accent-soft); border-color: var(--line-strong); }
.btn-small { min-height: 44px; padding: 8px 12px; font-size: 0.92rem; }
.btn-wide { width: 100%; }
.btn-emphasis { box-shadow: 0 0 0 3px var(--accent-soft); }
.btn-danger { border-color: var(--bad); color: var(--bad); background: var(--surface); }
.btn-danger:hover { background: var(--bad-soft); }
.btn-sub { display: block; font-size: 0.78rem; font-weight: 500; opacity: 0.85; }

label { display: block; font-weight: 600; margin: 0 0 6px; }
input[type="text"], input[type="password"], textarea {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 1.05rem;
}
textarea { resize: vertical; line-height: 1.45; }
.hint { font-size: 0.9rem; color: var(--text-muted); margin: 4px 0 10px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 12px 0 0; }
.row-between { justify-content: space-between; }

/* Topic library */
.topic-list { display: grid; gap: var(--gap); margin: 20px 0 0; }
.topic-card { margin: 0; }
.topic-card h2 { font-size: 1.5rem; margin: 6px 0 6px; }
.topic-card .topic-summary { margin-bottom: 8px; }
.topic-card .meta { margin: 0; }
.reference-panel { margin-top: var(--gap); }
.reference-panel > .unit-list { padding: 0 20px 20px; margin: 0; }
.unit-list { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 14px; }
@media (min-width: 720px) { .unit-list { grid-template-columns: repeat(3, 1fr); } }
.unit-card { margin: 0; height: 100%; display: flex; flex-direction: column; box-shadow: none; background: var(--surface-2); }
.unit-card h3 { font-size: 1.1rem; margin: 4px 0 6px; }
.unit-card p { margin: 0 0 8px; }
.unit-card .meta { margin-top: auto; }
.unit-card .btn { margin-top: 12px; align-self: flex-start; }

/* Topic overview */
.progress-card .progress-text { font-weight: 600; margin: 0 0 8px; }
.progress-bar {
  display: block;
  width: 100%;
  height: 8px;
  margin: 0 0 6px;
  border: 0;
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface-3);
  -webkit-appearance: none;
  appearance: none;
}
.progress-bar::-webkit-progress-bar { background: var(--surface-3); border-radius: 999px; }
.progress-bar::-webkit-progress-value { background: var(--good); border-radius: 999px; }
.progress-bar::-moz-progress-bar { background: var(--good); border-radius: 999px; }
.level-list { list-style: none; margin: 8px 0 var(--gap); padding: 0; display: grid; gap: 12px; }
.level-card {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 20px;
}
.level-card.is-complete { border-color: var(--good); }
.level-main { min-width: 0; flex: 1; }
.level-card h3 { font-size: 1.12rem; margin: 0 0 2px; }
.level-card .level-summary { margin: 0 0 4px; }
.level-card .meta { margin: 0; }
.level-card .btn { flex: none; }
.reset-card .fineprint { margin-bottom: 10px; }
.confirm-box {
  margin-top: 12px;
  padding: 14px 16px;
  border: 1px solid var(--bad);
  border-radius: var(--radius-sm);
  background: var(--bad-soft);
}
.confirm-box p { margin: 0 0 8px; }
.confirm-title { font-weight: 700; }

/* Question picker */
.picker { margin: 4px 0 var(--gap); }
.picker-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.picker-heading { font-size: 0.9rem; font-weight: 600; color: var(--text-muted); margin: 0 0 6px; letter-spacing: 0.02em; }
.picker-head .fineprint { margin: 0 0 6px; }
.picker-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.pick {
  min-width: 44px;
  min-height: 44px;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  position: relative;
}
.pick:hover { background: var(--accent-soft); }
.pick.is-done { background: var(--good-soft); border-color: var(--good); color: var(--good); }
.pick.is-done::after { content: "✓"; font-size: 0.7em; position: absolute; top: 2px; right: 5px; }
.pick.is-current { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.pick.is-current.is-done::after { color: var(--accent-ink); }

/* Question */
.crumbs { margin: 0 0 8px; }
.crumbs .btn { padding-left: 8px; }
.prompt { font-size: 1.18rem; margin: 6px 0 14px; max-width: 62ch; }
.question-card h2 { margin-top: 2px; }

.steps {
  margin: 8px 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}
.steps > summary { padding: 12px 14px; border-radius: var(--radius-sm); }
.steps[open] > summary { border-bottom: 1px solid var(--line); border-radius: var(--radius-sm) var(--radius-sm) 0 0; }
.steps-body { padding: 12px 14px 14px; }
.method-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.method-steps { margin: 0; padding-left: 24px; }
.method-steps li { margin: 6px 0; padding: 4px 6px; border-radius: 6px; }
.method-steps li::marker { font-weight: 700; color: var(--text-muted); }
.method-steps li.is-current { background: var(--accent-soft); outline: 2px solid var(--accent); }
.step-controls { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 10px; }
.step-status { font-size: 0.9rem; color: var(--text-muted); }

.calculator-mount { margin: 0 0 16px; }
.calculator-mount:empty { display: none; }

fieldset { border: 0; padding: 0; margin: 0 0 8px; min-width: 0; }
legend { font-weight: 600; padding: 0; margin-bottom: 6px; }
.choice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 10px 12px;
  margin: 6px 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-weight: 500;
  cursor: pointer;
}
.choice:hover { background: var(--accent-soft); }
.choice input { width: 22px; height: 22px; margin: 2px 0 0; flex: none; accent-color: var(--accent); }
.choice-pill { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 12px 0 8px; margin: 0 4px 0 0; font-weight: 500; }
.choice-pill input { width: 20px; height: 20px; accent-color: var(--accent); margin: 0; }
.speed-group { display: block; }
.speed-group legend { margin-bottom: 2px; }
.speed-group .choice-pill { margin: 0 6px 4px 0; }

.feedback { margin: 14px 0 0; }
.feedback:empty { display: none; }
.feedback-box { border-radius: var(--radius-sm); padding: 12px 14px; border: 1px solid var(--line); }
.feedback-box.is-correct { background: var(--good-soft); border-color: var(--good); }
.feedback-box.is-incorrect { background: var(--warn-soft); border-color: var(--warn); }
.feedback-box.is-error { background: var(--bad-soft); border-color: var(--bad); }
.feedback-box h3 { margin: 0 0 6px; }
.feedback-box p:last-child { margin-bottom: 0; }
.feedback-box .explanation { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--line); }

.question-nav { display: flex; justify-content: space-between; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.question-nav .btn { flex: 1; }

/* Visual */
.visual { margin: 0 0 16px; }
.visual figcaption { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 6px; }
.chart { width: 100%; height: auto; display: block; border-radius: var(--radius-sm); background: var(--surface-2); }
.chart text { font-family: inherit; fill: var(--text); font-size: 12px; }
.chart .axis { stroke: var(--text-muted); stroke-width: 1; }
.chart .grid { stroke: var(--grid); stroke-width: 1; }
.chart .tick-label, .chart .cat-label { fill: var(--text-muted); font-size: 11px; }
.chart .axis-title { fill: var(--text-muted); font-size: 11px; }
.chart .bar { fill: var(--bar); }
.chart .value-label { font-size: 11px; font-weight: 600; }
.chart .line-0 { stroke: var(--series-0); fill: none; stroke-width: 2.5; }
.chart .line-1 { stroke: var(--series-1); fill: none; stroke-width: 2.5; stroke-dasharray: 6 4; }
.chart .line-2 { stroke: var(--good); fill: none; stroke-width: 2.5; stroke-dasharray: 2 3; }
.chart .dot-0 { fill: var(--series-0); }
.chart .dot-1 { fill: var(--series-1); }
.chart .dot-2 { fill: var(--good); }
.chart .legend-text { font-size: 12px; }
.visual details { margin-top: 8px; }
.visual summary { cursor: pointer; min-height: 44px; display: flex; align-items: center; font-weight: 600; }
.data-table { border-collapse: collapse; width: 100%; margin-top: 6px; font-size: 0.95rem; }
.data-table caption { text-align: left; color: var(--text-muted); font-size: 0.9rem; padding: 4px 0; }
.data-table th, .data-table td { border: 1px solid var(--line); padding: 6px 8px; text-align: left; }
.data-table td.num, .data-table th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Support */
.calm-box {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
}
.calm-box p { margin: 0 0 8px; }

/* Tutor */
.tutor-card > :not(summary) { margin-left: 20px; margin-right: 20px; }
.tutor-card > form { padding-bottom: 20px; }
.disclosure {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 8px 12px;
  border-left: 3px solid var(--warn);
  background: var(--warn-soft);
  border-radius: 0 8px 8px 0;
}
.quota { font-weight: 600; margin: 8px 0; }
.quota:empty { display: none; }
.tutor-messages { list-style: none; margin: 8px 0 12px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.tutor-messages:empty { display: none; }
.msg { padding: 10px 12px; border-radius: var(--radius-sm); background: var(--surface-2); }
.msg.msg-user { background: var(--accent-soft); }
.msg .msg-role { display: block; font-size: 0.8rem; font-weight: 700; color: var(--text-muted); margin-bottom: 2px; }
.msg p { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg .btn { margin-top: 8px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
  #entry-skip { display: none !important; }
}

@media (max-width: 420px) {
  body { font-size: 16px; }
  h1 { font-size: 1.55rem; }
  .card { padding: 16px; }
  .concept-card, .tutor-card, .reference-panel { padding: 0; }
  .concept-card > summary, .tutor-card > summary, .reference-panel > summary { padding: 12px 16px; }
  .concept-body { padding: 0 16px 12px; }
  .reference-panel > .unit-list { padding: 0 16px 16px; }
  .tutor-card > :not(summary) { margin-left: 16px; margin-right: 16px; }
  .level-card { flex-direction: column; align-items: stretch; padding: 14px 16px; }
  .level-card .btn { width: 100%; }
  .site-header { padding: 10px 12px; }
  .header-controls .btn { padding: 8px 10px; font-size: 0.9rem; }
  :root { --main-pad-y: 20px; }
  main { padding: var(--main-pad-y) 14px 40px; }
  .entry-stage { padding: 24px 14px 12px; }
}

/* Keep the entry controls visually separate, including keyboard focus rings. */
.entry-form #login-submit { margin-top: .7rem; }
.entry-form > .fineprint { margin-top: .85rem; }

.tone-setting { margin: .7rem 0 1rem; }
.tone-setting .fineprint { margin: .5rem 0; }

.voice-speed{font:inherit;background:var(--surface);color:var(--text);border:1px solid var(--line-strong);border-radius:10px;min-height:44px;padding:.45rem .7rem;margin-top:.6rem;margin-left:.5rem;max-width:100%}.voice-speed:focus-visible{outline:3px solid var(--focus);outline-offset:3px}