:root {
  --bg: #FFFFFF; --panel: #F4F6F9; --ink: #14304D; --text: #1F2A37; --muted: #5B6675; --line: #DCE2EA;
  --amber: #F2A541; --coral: #E8705F; --teal: #3BB3A3; --sky: #64A6E0;
  --amber-soft: #FDF0DC; --coral-soft: #FCE6E2; --teal-soft: #DFF4F1; --sky-soft: #E4F0FB;
  --btn: #14304D; --btn-text: #FFFFFF; --focus: #64A6E0;
  color-scheme: light;
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E1B2B; --panel: #15263A; --ink: #E8EEF5; --text: #D7DFE8; --muted: #9AA8B8; --line: #26394F;
    --amber-soft: #3A2C16; --coral-soft: #3B221E; --teal-soft: #15332F; --sky-soft: #172C42;
    --btn: #E8EEF5; --btn-text: #0E1B2B; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0E1B2B; --panel: #15263A; --ink: #E8EEF5; --text: #D7DFE8; --muted: #9AA8B8; --line: #26394F;
  --amber-soft: #3A2C16; --coral-soft: #3B221E; --teal-soft: #15332F; --sky-soft: #172C42;
  --btn: #E8EEF5; --btn-text: #0E1B2B; color-scheme: dark;
}
*, *::before, *::after { box-sizing: inherit; }
html { scroll-padding-top: env(safe-area-inset-top, 0px); }
body { margin: 0; background: var(--bg); color: var(--text); font-family: 'Lora', Georgia, 'Times New Roman', serif; font-size: 1.0625rem; line-height: 1.65; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bg); }
h1, h2, h3, .ui, button, input, select, textarea, label, nav { font-family: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
h1 { color: var(--ink); font-weight: 700; font-size: clamp(2rem, 5vw, 3.25rem); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h2 { color: var(--ink); font-weight: 600; font-size: clamp(1.4rem, 3vw, 1.9rem); line-height: 1.2; margin: 0 0 0.6em; }
h3 { color: var(--ink); font-weight: 600; font-size: 1.05rem; margin: 0 0 0.3em; }
a { color: var(--ink); }
img { max-width: 100%; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 22px; }
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--bg); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: 'Poppins', sans-serif; font-weight: 700; font-size: 1.05rem; }
.brand .tiles { display: grid; grid-template-columns: repeat(2, 11px); gap: 3px; }
.brand .tiles i { width: 11px; height: 11px; border-radius: 3px; display: block; }
nav { display: flex; gap: 4px; flex-wrap: wrap; }
nav a { text-decoration: none; color: var(--muted); font-size: 0.92rem; font-weight: 500; padding: 6px 11px; border-radius: 8px; }
nav a[aria-current="page"] { color: var(--ink); background: var(--panel); }
.view { display: none; padding: 48px 0 72px; }
.view.on { display: block; }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 38em; }
.btn { display: inline-block; font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 0.98rem; padding: 12px 20px; border-radius: 10px; border: 2px solid var(--btn); background: var(--btn); color: var(--btn-text); text-decoration: none; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--ink); }
.btns { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.demo { border: 1px solid var(--line); border-radius: 18px; padding: 22px; background: var(--bg); }
.toggle { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; padding: 3px; margin-bottom: 16px; }
.toggle button { font-weight: 600; font-size: 0.9rem; border: 0; background: transparent; color: var(--muted); padding: 7px 16px; border-radius: 8px; cursor: pointer; }
.toggle button[aria-pressed="true"] { background: var(--btn); color: var(--btn-text); }
.weak { font-family: 'Poppins', sans-serif; font-size: 1.15rem; color: var(--text); padding: 18px; border-radius: 12px; background: var(--panel); }
.seg { display: block; font-family: 'Poppins', sans-serif; font-size: 0.98rem; line-height: 1.5; padding: 9px 12px 9px 14px; margin-bottom: 8px; border-radius: 10px; border-left: 6px solid; }
.seg small { display: block; font-size: 0.75rem; font-weight: 600; color: var(--muted); margin-bottom: 1px; }
.r { border-color: var(--amber); background: var(--amber-soft); }
.t { border-color: var(--coral); background: var(--coral-soft); }
.c { border-color: var(--teal); background: var(--teal-soft); }
.k { border-color: var(--sky); background: var(--sky-soft); }
.parts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 64px; border-top: 1px solid var(--line); }
.part { padding: 22px 20px 6px 0; border-top: 6px solid; margin-top: -1px; }
.part p { margin: 0.3em 0 0; color: var(--muted); font-size: 0.98rem; }
.who { margin-top: 64px; }
.who .row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.pill { font-family: 'Poppins', sans-serif; font-weight: 500; font-size: 0.95rem; border: 1px solid var(--line); background: var(--bg); color: var(--ink); padding: 9px 16px; border-radius: 999px; cursor: pointer; }
.pill[aria-pressed="true"], .pill:hover { border-color: var(--ink); }
.pill[aria-pressed="true"] { background: var(--btn); color: var(--btn-text); }
.strip { display: flex; gap: 14px; margin-top: 18px; overflow-x: auto; padding-bottom: 6px; }
.strip a img { height: 190px; width: auto; border-radius: 6px; display: block; }
/* builder */
.bgrid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; align-items: start; margin-top: 28px; }
.step { border-top: 1px solid var(--line); padding: 20px 0 18px; }
.step h3 { display: flex; gap: 10px; align-items: baseline; }
.step h3 span { color: var(--muted); font-weight: 500; }
.step .hint { font-size: 0.92rem; color: var(--muted); margin: 0 0 10px; font-family: 'Poppins', sans-serif; }
input[type=text], textarea, select { width: 100%; font-size: 1rem; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
textarea { min-height: 84px; resize: vertical; line-height: 1.45; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 9px; }
.chip { font-family: 'Poppins', sans-serif; font-size: 0.86rem; border: 1px solid var(--line); background: var(--bg); color: var(--text); padding: 6px 12px; border-radius: 999px; cursor: pointer; }
.chip[aria-pressed="true"] { border-color: var(--ink); background: var(--panel); font-weight: 600; color: var(--ink); }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 0.88rem; font-weight: 500; color: var(--ink); margin-bottom: 4px; }
.taskrow { display: grid; grid-template-columns: 170px 1fr; gap: 10px; }
.outbox { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 84px); border: 1px solid var(--line); border-radius: 18px; padding: 20px; background: var(--bg); }
.outbox .head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.empty { color: var(--muted); font-style: italic; }
.meter { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 12px; font-family: 'Poppins', sans-serif; font-size: 0.9rem; }
.meter ul { list-style: none; padding: 0; margin: 6px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px; }
.meter li::before { content: '○'; margin-right: 7px; color: var(--muted); }
.meter li.ok::before { content: '●'; color: var(--teal); }
.tip { margin-top: 10px; color: var(--muted); }
.switch { font-family: 'Poppins', sans-serif; font-size: 0.86rem; color: var(--muted); display: flex; gap: 6px; align-items: center; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.privacy { font-family: 'Poppins', sans-serif; font-size: 0.85rem; color: var(--muted); margin-top: 8px; }
/* packs */
.pfil { display: flex; gap: 14px; align-items: center; margin-top: 14px; flex-wrap: wrap; }
.pfil .chips { margin-top: 0; }
.flab { font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 0.9rem; color: var(--ink); width: 64px; }
.dlbox { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; border: 1px solid var(--line); border-radius: 14px; padding: 14px 18px; margin-top: 22px; }
.dlbox b { font-family: 'Poppins', sans-serif; color: var(--ink); }
.dlbox .privacy { margin: 2px 0 0; }
.psum { font-family: 'Poppins', sans-serif; color: var(--muted); margin: 22px 0 8px; }
.plist { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.pcard { border: 1px solid var(--line); border-radius: 16px; padding: 18px; display: flex; flex-direction: column; }
.pcard h3 { margin-bottom: 10px; }
.pcard .seg { font-size: 0.88rem; padding: 7px 10px 7px 12px; margin-bottom: 6px; }
.pcard .actions { margin-top: auto; padding-top: 10px; }
.pcard .btn { font-size: 0.88rem; padding: 9px 14px; }
@media (max-width: 760px) { .plist { grid-template-columns: 1fr; } }
/* books */
.books { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px 28px; margin-top: 30px; }
.book img { width: 100%; aspect-ratio: 380 / 608; object-fit: cover; border-radius: 6px; border: 1px solid var(--line); display: block; }
.book h3 { margin-top: 14px; }
.book p { margin: 0.2em 0 0.8em; color: var(--muted); font-size: 0.98rem; }
.book .for { font-family: 'Poppins', sans-serif; font-size: 0.85rem; color: var(--ink); font-weight: 500; }
.kids { margin-top: 64px; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.kids ul { padding-left: 1.1em; margin: 0.5em 0 0; }
.kids li { margin-bottom: 0.35em; }
.packs { display: grid; grid-template-columns: 1.3fr 1fr; gap: 36px; margin-top: 28px; align-items: start; }
.pack { border: 1px solid var(--line); border-radius: 18px; padding: 24px; }
.soon li { color: var(--muted); margin-bottom: 0.4em; }
.about { max-width: 42em; }
footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-family: 'Poppins', sans-serif; font-size: 0.88rem; }
footer p { margin: 0.3em 0; }
@media (max-width: 900px) {
  .hero, .bgrid, .packs { grid-template-columns: 1fr; }
  .parts { grid-template-columns: 1fr 1fr; }
  .books { grid-template-columns: 1fr 1fr; }
  .kids { grid-template-columns: 1fr; }
  .outbox { position: static; }
}
@media (max-width: 520px) {
  .parts, .books { grid-template-columns: 1fr; }
  .taskrow { grid-template-columns: 1fr; }
  .meter ul { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: no-preference) {
  .seg { transition: opacity .25s ease; }
}

.brand { font-size: 1.02rem; white-space: nowrap; }
.crumbs { font-family: 'Poppins', sans-serif; font-size: 0.88rem; color: var(--muted); margin-bottom: 14px; }
.crumbs a { color: var(--muted); }
.ptext { display: none; }
.bandgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 22px; }
.bandcard { border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.bandcard h2 { font-size: 1.25rem; margin-bottom: 8px; }
.bandcard ul { list-style: none; padding: 0; margin: 0 0 12px; font-family: 'Poppins', sans-serif; font-size: 0.93rem; }
.bandcard li { margin-bottom: 4px; }
.subjnav { display: flex; flex-wrap: wrap; gap: 8px; margin: 26px 0 0; }
.subjnav a { font-family: 'Poppins', sans-serif; font-size: 0.88rem; text-decoration: none; border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; color: var(--ink); }
.subjnav a[aria-current="page"] { background: var(--btn); color: var(--btn-text); border-color: var(--btn); }
.legal { max-width: 46em; }
.legal h2 { font-size: 1.2rem; margin-top: 1.6em; }
form.contact { max-width: 36em; }
form.contact .field { margin-bottom: 14px; }
.hidden { display: none; }
@media (max-width: 900px) { .bandgrid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .bandgrid { grid-template-columns: 1fr; } }