/* ISC problem pages. Brand: /OS/brand.md (navy #012B43, orange #FF7F00, Oswald + Source Sans 3) */
:root {
  --navy: #012B43;
  --navy-2: #0A3A57;
  --orange: #FF7F00;
  --gold: #E0C00B;
  --white: #FFFFFF;
  --off: #F5F3EE;
  --ink: #1E2A36;
  --muted: #56626F;
  --line: #D9D6CF;
  --radius: 14px;
  --wrap: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font: 18px/1.6 "Source Sans 3", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
img { max-width: 100%; display: block; }
a { color: var(--navy); }
h1, h2, h3, .tag, .btn, .stat b {
  font-family: Oswald, "Arial Narrow", Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: .01em;
}
h1 { font-weight: 600; font-size: clamp(34px, 6vw, 56px); line-height: 1.05; margin: 12px 0 16px; color: var(--navy); }
h2 { font-weight: 500; font-size: clamp(26px, 4vw, 36px); line-height: 1.1; margin: 0 0 18px; color: var(--navy); }
h3 { font-weight: 500; font-size: 20px; margin: 0 0 6px; color: var(--navy); }
p { margin: 0 0 14px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }

/* top bar */
.top { border-bottom: 1px solid var(--line); background: var(--white); position: sticky; top: 0; z-index: 10; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 68px; }
.top img { height: 46px; width: auto; }
.top .btn { padding: 10px 16px; font-size: 16px; }

/* buttons */
.btn {
  display: inline-block; text-decoration: none; font-weight: 500; font-size: 19px;
  padding: 14px 22px; border-radius: 10px; border: 2px solid transparent; text-align: center;
}
.btn-call { background: var(--orange); color: var(--navy); }
.btn-call:hover { background: #ff9126; }
.btn-ghost { border-color: var(--navy); color: var(--navy); background: var(--white); }
.btn-ghost:hover { background: var(--off); }
.btns { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 8px; }

/* hero */
.hero { padding: 36px 0 44px; }
.hero .wrap { display: grid; gap: 32px; align-items: center; }
.tag { display: inline-block; background: var(--orange); color: var(--navy); font-size: 14px; font-weight: 500; padding: 4px 10px; border-radius: 6px; }
.lead { font-size: 21px; color: var(--ink); max-width: 36em; }
.small { font-size: 15px; color: var(--muted); }
.hero figure { margin: 0; }
.hero figure img { border-radius: var(--radius); width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
figcaption { font-size: 14px; color: var(--muted); margin-top: 8px; }
.no-photo { border: 2px dashed var(--line); border-radius: var(--radius); aspect-ratio: 4 / 3; display: grid; place-items: center; text-align: center; padding: 24px; color: var(--muted); background: var(--off); }
@media (min-width: 860px) { .hero .wrap { grid-template-columns: 1.05fr .95fr; } }

/* sections */
section { padding: 52px 0; }
.soft { background: var(--off); }
.rule { width: 56px; height: 3px; background: var(--gold); margin: 0 0 16px; border: 0; }

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
@media (min-width: 720px) { .checks { grid-template-columns: 1fr 1fr; } }
.checks li { background: var(--white); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px 14px 50px; position: relative; }
.checks li::before { content: "?"; position: absolute; left: 14px; top: 13px; width: 24px; height: 24px; border-radius: 50%; background: var(--navy); color: var(--white); font: 600 15px/24px Oswald, Arial, sans-serif; text-align: center; }

.truth { background: var(--navy); color: var(--white); }
.truth h2, .truth h3 { color: var(--white); }
.truth .rule { background: var(--orange); }
.risks { display: grid; gap: 14px; margin-top: 22px; }
@media (min-width: 720px) { .risks { grid-template-columns: repeat(3, 1fr); } }
.risks div { border: 1px solid rgba(255,255,255,.22); border-radius: 12px; padding: 18px; background: var(--navy-2); }
.risks p { margin: 0; color: #DCE4EA; font-size: 17px; }

.steps { counter-reset: s; display: grid; gap: 14px; padding: 0; margin: 0; list-style: none; }
@media (min-width: 720px) { .steps { grid-template-columns: 1fr 1fr; } }
.steps li { counter-increment: s; border: 1px solid var(--line); border-radius: 12px; padding: 18px 18px 18px 64px; position: relative; background: var(--white); }
.steps li::before { content: counter(s); position: absolute; left: 18px; top: 16px; width: 32px; height: 32px; border-radius: 8px; background: var(--orange); color: var(--navy); font: 600 18px/32px Oswald, Arial, sans-serif; text-align: center; }
.steps p { margin: 0; font-size: 17px; }
.pair { display: grid; gap: 14px; margin-top: 26px; }
@media (min-width: 720px) { .pair { grid-template-columns: 1fr 1fr; } }
.pair img { border-radius: var(--radius); width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 26px; }
@media (min-width: 860px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stat { border: 1px solid var(--line); border-radius: 12px; padding: 16px; background: var(--white); }
.stat b { display: block; font-size: 30px; font-weight: 600; color: var(--navy); line-height: 1.1; }
.stat span { font-size: 15px; color: var(--muted); }
blockquote { margin: 0; border-left: 4px solid var(--orange); padding: 6px 0 6px 18px; font-size: 19px; }
blockquote footer { font-size: 15px; color: var(--muted); margin-top: 6px; }
.quotes { display: grid; gap: 22px; }
@media (min-width: 860px) { .quotes { grid-template-columns: 1fr 1fr; } }

details { border: 1px solid var(--line); border-radius: 12px; padding: 0 18px; margin-bottom: 10px; background: var(--white); }
summary { cursor: pointer; padding: 16px 0; font-weight: 600; color: var(--navy); list-style-position: outside; }
details p { margin-top: 0; }

.offer .wrap { display: grid; gap: 30px; }
@media (min-width: 900px) { .offer .wrap { grid-template-columns: .9fr 1.1fr; align-items: start; } }
.how { list-style: none; padding: 0; margin: 0 0 18px; }
.how li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.how b { color: var(--navy); }
.formbox { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--white); }
.formbox iframe { width: 100%; height: 960px; border: 0; display: block; }
.not-for { border-left: 4px solid var(--gold); padding: 4px 0 4px 14px; color: var(--muted); font-size: 16px; }

footer.site { background: var(--navy); color: #DCE4EA; padding: 34px 0 96px; font-size: 15px; }
footer.site a { color: var(--white); }
footer.site .wrap { display: grid; gap: 10px; }

/* phone call bar */
.callbar { position: fixed; left: 0; right: 0; bottom: 0; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: var(--navy); display: flex; gap: 10px; z-index: 20; }
.callbar .btn { flex: 1; padding: 12px 10px; font-size: 17px; }
.callbar .btn-ghost { background: transparent; color: var(--white); border-color: var(--white); }
@media (min-width: 860px) { .callbar { display: none; } footer.site { padding-bottom: 34px; } }

/* hub */
.cards { display: grid; gap: 14px; }
@media (min-width: 720px) { .cards { grid-template-columns: 1fr 1fr; } }
.cards a { display: block; text-decoration: none; border: 1px solid var(--line); border-radius: 12px; padding: 18px; color: var(--ink); background: var(--white); }
.cards a:hover { border-color: var(--navy); }