/* Pageful site — pageful.octechco.com. Pageful teal identity, octechco Inter typography. */
:root {
  --teal: #266e7b; --teal-dk: #1c545e; --teal-soft: #eaf3f4;
  --ink: #16282c; --muted: #51666b; --faint: #85979c; --line: #e2eaec;
  --bg: #ffffff; --bg-alt: #f5f9fa; --card: #ffffff;
  --radius: 16px; --shadow: 0 1px 3px rgba(16,42,48,.06), 0 8px 30px rgba(16,42,48,.06);
  --maxw: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--ink); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased;
}
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.btn {
  display: inline-flex; align-items: center; gap: 9px; font-weight: 600; font-size: 15px;
  padding: 13px 22px; border-radius: 12px; border: 1px solid transparent; cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--teal); color: #fff; box-shadow: 0 6px 18px rgba(38,110,123,.28); }
.btn-primary:hover { background: var(--teal-dk); }
.btn-ghost { background: var(--teal-soft); color: var(--teal); }

/* header */
.site-head { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.82);
  backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: .2px; color: var(--ink); }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav a { color: var(--muted); font-weight: 500; font-size: 14px; margin-left: 22px; }
.nav a:hover { color: var(--ink); text-decoration: none; }

/* hero */
.hero { background: linear-gradient(180deg, var(--teal-soft), #fff 70%); padding: 72px 0 40px; text-align: center; }
.pill { display: inline-block; background: #fff; border: 1px solid var(--line); color: var(--teal);
  font-size: 13px; font-weight: 600; padding: 5px 14px; border-radius: 999px; margin-bottom: 22px; }
h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.08; letter-spacing: -1.5px; font-weight: 800; margin: 0 0 18px; }
h1 .accent { color: var(--teal); }
.lead { font-size: clamp(17px, 2.4vw, 20px); color: var(--muted); max-width: 640px; margin: 0 auto 30px; }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-note { color: var(--faint); font-size: 13px; margin-top: 14px; }
.shot { margin: 48px auto 0; max-width: 920px; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow); }
.shot img { display: block; width: 100%; }

/* sections */
section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }
h2 { font-size: clamp(26px, 4vw, 36px); letter-spacing: -.8px; font-weight: 800; margin: 0 0 12px; text-align: center; }
.sub { color: var(--muted); text-align: center; max-width: 560px; margin: 0 auto 44px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.ico { width: 42px; height: 42px; border-radius: 11px; background: var(--teal-soft); color: var(--teal);
  display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 16px; }

/* privacy banner */
.privacy-band { background: var(--teal); color: #fff; text-align: center; }
.privacy-band h2 { color: #fff; }
.privacy-band .sub { color: rgba(255,255,255,.85); }
.privacy-band .chips { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 8px; }
.chip { background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.22); padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 500; }

/* content pages */
.doc { max-width: 760px; margin: 0 auto; padding: 56px 24px 80px; }
.doc h1 { font-size: 38px; text-align: left; margin-bottom: 6px; }
.doc .updated { color: var(--faint); font-size: 14px; margin-bottom: 36px; }
.doc h2 { text-align: left; font-size: 22px; margin: 34px 0 10px; }
.doc p, .doc li { color: var(--ink); }
.doc ul { padding-left: 22px; }
.doc li { margin-bottom: 8px; }

/* form */
.form { max-width: 600px; margin: 0 auto; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 11px;
  font: inherit; color: var(--ink); background: #fff; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--teal); border-color: var(--teal); }
.field textarea { min-height: 150px; resize: vertical; }
.hp { position: absolute; left: -9999px; }
.notice { padding: 14px 18px; border-radius: 11px; margin-bottom: 24px; font-size: 15px; }
.notice.ok { background: #e7f6ed; border: 1px solid #b6e2c6; color: #1c6b3a; }
.notice.err { background: #fdeceb; border: 1px solid #f3c0bc; color: #b3322a; }

/* footer */
.site-foot { border-top: 1px solid var(--line); background: var(--bg-alt); padding: 40px 0; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.site-foot .links a { color: var(--muted); font-size: 14px; margin-right: 18px; }
.site-foot .copy { color: var(--faint); font-size: 13px; }
@media (max-width: 600px) { .nav a:not(.btn) { display: none; } section { padding: 48px 0; } }