:root {
  color-scheme: light;
  --black: #020202;
  --blue: #263A95;
  --blue-dark: #1b2a6e;
  --purple: #9860A7;
  --white: #ffffff;
  --surface: #F7F8FA;
  --surface-2: #EEF0F6;
  --border: #E2E4EA;
  --text: #020202;
  --text-mid: #3b3f4a;
  --text-dim: #5f6472;
  --blue-faint: rgba(38, 58, 149, 0.07);
  --blue-soft: rgba(38, 58, 149, 0.18);
  --purple-faint: rgba(152, 96, 167, 0.10);
  --purple-soft: rgba(152, 96, 167, 0.28);
  --red: #b3261e;
  --red-bg: #fbeceb;
  --amber: #8a5a00;
  --amber-bg: #fdf3dc;
  --green: #1d6b3a;
  --green-bg: #e6f3ea;
  --font: 'Poppins', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: ui-monospace, SFMono-Regular, Consolas, Menlo, monospace;
  --radius: 10px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { background: var(--surface); color: var(--text); font-family: var(--font); font-size: 15px; line-height: 1.6; min-height: 100vh; display: flex; flex-direction: column; }
a { color: var(--blue); }
:focus-visible { outline: 2px solid var(--purple); outline-offset: 2px; border-radius: 3px; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2.5rem); width: 100%; }
.wrap.wide { max-width: 1320px; }

/* header */
header.site { background: var(--white); border-bottom: 1px solid var(--border); position: relative; }
header.site::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 4px; background: var(--blue); }
.masthead { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1rem; padding-bottom: 1.15rem; }
.masthead img.logo { height: 40px; width: auto; display: block; }
.masthead .tag { font-size: 0.8rem; font-weight: 500; color: var(--blue); letter-spacing: 0.06em; text-transform: uppercase; text-align: right; }

/* hero */
.hero { background: var(--white); border-bottom: 1px solid var(--border); position: relative; overflow: hidden; }
.hero .pattern { position: absolute; right: -90px; top: -70px; width: 380px; opacity: 0.08; pointer-events: none; }
.hero .inner { position: relative; padding: clamp(2rem, 6vw, 3.5rem) 0 clamp(1.6rem, 4vw, 2.5rem); }
.eyebrow { color: var(--purple); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; margin-bottom: 0.8rem; }
h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 700; line-height: 1.12; letter-spacing: -0.02em; color: var(--black); max-width: 24ch; }
h1 .sub { display: block; margin-top: 0.5rem; font-size: 0.48em; font-weight: 400; letter-spacing: 0; color: var(--text-dim); max-width: 60ch; line-height: 1.5; }
h2 { font-size: 1.3rem; font-weight: 700; letter-spacing: -0.01em; color: var(--black); margin-bottom: 1rem; display: flex; align-items: center; gap: 0.7rem; }
h2::before { content: ""; width: 1.4rem; height: 4px; border-radius: 2px; background: var(--purple); flex: none; }
h3 { font-size: 1.02rem; font-weight: 600; color: var(--blue); margin-bottom: 0.4rem; }
p + p { margin-top: 0.7rem; }
section { padding: clamp(1.5rem, 4vw, 2.4rem) 0; }
.muted { color: var(--text-dim); }
.small { font-size: 0.85rem; }

/* cards */
.card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: clamp(1.1rem, 3vw, 1.6rem); }
.card + .card { margin-top: 1rem; }
.card.accent { border-left: 4px solid var(--blue); }
.card.purple { border-left: 4px solid var(--purple); }
.grid-2 > .card + .card, .grid-3 > .card + .card { margin-top: 0; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
ul.clean { list-style: none; display: grid; gap: 0.45rem; }
ul.clean li { padding-left: 1.1rem; position: relative; }
ul.clean li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 6px; height: 6px; border-radius: 50%; background: var(--purple); }
ol.steps { list-style: none; counter-reset: s; display: grid; gap: 0.7rem; }
ol.steps li { counter-increment: s; display: flex; gap: 0.8rem; align-items: baseline; }
ol.steps li::before { content: counter(s); flex: none; width: 1.6rem; height: 1.6rem; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: var(--blue-faint); border: 1px solid var(--blue-soft); color: var(--blue); font-weight: 600; font-size: 0.8rem; transform: translateY(0.2em); }

table.simple { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
table.simple th, table.simple td { text-align: left; padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
table.simple th { font-weight: 600; color: var(--blue); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* buttons + form */
.btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.6rem 1.2rem; border: 1px solid var(--blue); border-radius: 8px; color: var(--blue); background: var(--white); font: 600 0.9rem var(--font); text-decoration: none; cursor: pointer; white-space: nowrap; transition: background-color .15s, color .15s; }
.btn:hover { background: var(--blue-faint); }
.btn.primary { background: var(--blue); color: var(--white); }
.btn.primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn.purple { background: var(--purple); border-color: var(--purple); color: var(--white); }
.btn.small { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn.ghost { border-color: var(--border); color: var(--text-mid); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
label.lbl { display: block; font-weight: 600; font-size: 0.88rem; color: var(--black); margin-bottom: 0.35rem; }
.hint { font-size: 0.8rem; color: var(--text-dim); margin-top: 0.3rem; }
input[type=text], input[type=number], input[type=password], textarea, select {
  width: 100%; font: 400 0.92rem var(--font); color: var(--text); background: var(--white);
  border: 1px solid #cfd3dd; border-radius: 8px; padding: 0.6rem 0.75rem;
}
textarea { min-height: 7rem; resize: vertical; line-height: 1.55; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--blue-soft); border-color: var(--blue); }
textarea[readonly], input[readonly] { background: var(--surface); color: var(--text-mid); }
.q { margin-top: 1.3rem; }
.q .qnum { display: inline-block; font-size: 0.75rem; font-weight: 600; color: var(--purple); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.2rem; }

.note { padding: 0.85rem 1rem; border-radius: 8px; background: var(--blue-faint); border: 1px solid var(--blue-soft); font-size: 0.88rem; color: var(--text-mid); }
.note.purple { background: var(--purple-faint); border-color: var(--purple-soft); }
.err { padding: 0.75rem 1rem; background: var(--red-bg); border: 1px solid #e8b4b0; border-radius: 8px; color: var(--red); font-size: 0.88rem; }

.pill { display: inline-block; font-size: 0.72rem; font-weight: 600; padding: 0.12rem 0.55rem; border-radius: 999px; white-space: nowrap; }
.rag-Red { background: var(--red-bg); color: var(--red); }
.rag-Amber { background: var(--amber-bg); color: var(--amber); }
.rag-Green { background: var(--green-bg); color: var(--green); }

footer.site { margin-top: auto; border-top: 1px solid var(--border); background: var(--white); padding: 1.4rem 0 2rem; color: var(--text-dim); font-size: 0.8rem; }
footer.site .wrap { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
footer.site img { height: 22px; }

@media (max-width: 640px) {
  .masthead .tag { text-align: left; }
  .masthead img.logo { height: 32px; }
}
@media print {
  header.site, footer.site, .noprint { display: none !important; }
  body { background: #fff; }
}