/* ================================================================
   Stackhouse London — brand stylesheet
   Palette: Ink #101820 · Chalk #F4F0E8 · Signal #E85C2B
            Steel #5E6A75 · Kraft #C9A97A · Stock Green #3E7C4F
   Type:    Lato Black (display) · Poppins (subheads/UI) · Lato (body)
   ================================================================ */

:root {
  --ink: #101820;
  --ink-dark: #0A1118;
  --chalk: #F4F0E8;
  --signal: #E85C2B;
  --signal-dark: #C64A1F;
  --steel: #5E6A75;
  --kraft: #C9A97A;
  --green: #3E7C4F;
  --body-text: #333B42;
  --line: #DDD6C8;
  --white: #FFFFFF;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Lato', -apple-system, sans-serif;
  color: var(--body-text);
  background: var(--chalk);
  line-height: 1.6;
  font-size: 17px;
}

img { max-width: 100%; display: block; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--signal);
  color: var(--ink); padding: 10px 18px; font-weight: 700; z-index: 200;
}
.skip-link:focus { left: 0; }

/* ---------- Typography ---------- */
h1, h2, h3 { color: var(--ink); }
h1 { font-family: 'Lato', sans-serif; font-weight: 900; font-size: clamp(2rem, 5vw, 3.3rem); line-height: 1.08; letter-spacing: -0.01em; }
h2 { font-family: 'Lato', sans-serif; font-weight: 900; font-size: clamp(1.5rem, 3.5vw, 2.1rem); line-height: 1.15; margin-bottom: 0.6em; }
h3 { font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 1.15rem; margin-bottom: 0.4em; }
.kicker {
  font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 0.76rem;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--signal-dark);
  margin-bottom: 12px;
}
.price { font-weight: 900; color: var(--signal-dark); }
.on-dark .price { color: var(--signal); }

/* ---------- Header / nav ---------- */
.site-header {
  background: var(--ink); position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid rgba(244,240,232,0.08);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; padding: 13px 24px; max-width: 1120px; margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo svg { flex-shrink: 0; }
.logo-text { font-family: 'Lato', sans-serif; font-weight: 900; font-size: 1.5rem; color: var(--chalk); line-height: 1; letter-spacing: -0.02em; }
.logo-sub { font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 0.55rem; letter-spacing: 0.52em; color: var(--signal); text-transform: uppercase; }
nav.main-nav { display: flex; gap: 26px; align-items: center; }
nav.main-nav a {
  color: var(--chalk); text-decoration: none; font-family: 'Poppins', sans-serif;
  font-weight: 500; font-size: 0.9rem;
}
nav.main-nav a:hover, nav.main-nav a[aria-current="page"] { color: var(--signal); }
.nav-cta {
  background: var(--signal); color: var(--ink) !important; padding: 9px 18px;
  border-radius: 3px; font-weight: 600 !important;
}
.nav-cta:hover { background: #F0713F; }
.nav-toggle { display: none; background: none; border: none; color: var(--chalk); font-size: 1.6rem; cursor: pointer; }

@media (max-width: 880px) {
  .nav-toggle { display: block; }
  nav.main-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--ink-dark); flex-direction: column; padding: 18px 24px; gap: 16px;
  }
  nav.main-nav.open { display: flex; }
}

/* ---------- Hero ---------- */
.hero { background: var(--ink); color: var(--chalk); padding: 84px 0 72px; }
.hero h1 { color: var(--chalk); max-width: 760px; }
.hero h1 .accent { color: var(--signal); }
.hero .sub { font-size: 1.15rem; color: #C9CFD4; margin: 20px 0 8px; max-width: 660px; }
.hero .rates-line { font-weight: 700; color: var(--chalk); font-size: 1rem; margin-bottom: 30px; }
.hero .rates-line span { color: var(--signal); font-weight: 900; }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 26px; border-radius: 3px; text-decoration: none;
  font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 0.98rem; border: 2px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--signal); color: var(--ink); }
.btn-primary:hover { background: #F0713F; }
.btn-ghost { border-color: var(--chalk); color: var(--chalk); }
.btn-ghost:hover { border-color: var(--signal); color: var(--signal); }
.btn-ghost.dark-text { border-color: var(--ink); color: var(--ink); }
.btn-ghost.dark-text:hover { border-color: var(--signal-dark); color: var(--signal-dark); }

/* ---------- Sections ---------- */
section { padding: 72px 0; }
section.tight { padding: 48px 0; }
.section-dark { background: var(--ink); color: #C9CFD4; }
.section-dark h2, .section-dark h3 { color: var(--chalk); }
.section-white { background: var(--white); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 36px; align-items: center; }
@media (max-width: 880px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: 4px;
  padding: 28px; height: 100%;
}
.section-dark .card { background: #1A2530; border-color: #26313C; }
.card .big { font-size: 2.1rem; font-weight: 900; color: var(--signal-dark); }
.section-dark .card .big { color: var(--signal); }

/* ---------- Rate tables ---------- */
.ledger { width: 100%; border-collapse: collapse; background: var(--white); border: 1px solid var(--line); }
.ledger th {
  font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 0.76rem; text-align: left;
  letter-spacing: 0.08em; text-transform: uppercase; background: var(--ink); color: var(--chalk);
  padding: 12px 16px;
}
.ledger td { padding: 13px 16px; border-bottom: 1px solid var(--line); font-size: 0.95rem; }
.ledger tr:last-child td { border-bottom: none; }
.ledger td.num { font-weight: 900; color: var(--signal-dark); white-space: nowrap; }
.ledger tr.hl { background: #FBE9DF; }
.ledger-note { font-size: 0.85rem; color: #8A8378; margin-top: 10px; }

/* ---------- Quote / highlight box ---------- */
.quotebox {
  border-left: 5px solid var(--signal); background: var(--white);
  padding: 22px 26px; margin: 26px 0; border-radius: 0 4px 4px 0;
}
.section-dark .quotebox { background: #1A2530; }

/* ---------- FAQ ---------- */
details.faq { background: var(--white); border: 1px solid var(--line); border-radius: 4px; margin-bottom: 12px; }
details.faq summary {
  cursor: pointer; padding: 18px 22px; font-family: 'Poppins', sans-serif; font-weight: 600;
  color: var(--ink); font-size: 1rem; list-style: none; position: relative; padding-right: 44px;
}
details.faq summary::after { content: "+"; position: absolute; right: 22px; top: 14px; font-size: 1.4rem; color: var(--signal-dark); }
details.faq[open] summary::after { content: "–"; }
details.faq .faq-body { padding: 0 22px 18px; }

/* ---------- Calculator ---------- */
.calc {
  background: var(--ink); color: var(--chalk); border-radius: 4px; padding: 30px;
}
.calc h3 { color: var(--chalk); }
.calc label { font-family: 'Poppins', sans-serif; font-weight: 500; font-size: 0.85rem; display: block; margin: 14px 0 6px; color: #C9CFD4; }
.calc input, .calc select {
  width: 100%; padding: 11px 13px; border: 1px solid #26313C; border-radius: 3px;
  font-family: 'Lato', sans-serif; font-size: 1rem; background: #1A2530; color: var(--chalk);
}
.calc-result { margin-top: 20px; padding-top: 20px; border-top: 1px solid #26313C; }
.calc-result .figure { font-size: 2rem; font-weight: 900; color: var(--signal); }
.calc-result .note { font-size: 0.82rem; color: #8A9098; }

/* ---------- Forms ---------- */
form.stack-form { display: grid; gap: 16px; max-width: 560px; }
form.stack-form label { font-family: 'Poppins', sans-serif; font-weight: 500; font-size: 0.88rem; color: var(--ink); display: block; margin-bottom: 6px; }
form.stack-form input, form.stack-form select, form.stack-form textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 3px;
  font-family: 'Lato', sans-serif; font-size: 1rem; background: var(--white); color: var(--ink);
}
form.stack-form input:focus, form.stack-form select:focus, form.stack-form textarea:focus {
  outline: 2px solid var(--signal); border-color: var(--signal);
}
form.stack-form button { justify-self: start; border: none; }

/* ---------- Footer ---------- */
footer.site-footer { background: var(--ink-dark); color: #8A9098; padding: 56px 0 32px; font-size: 0.92rem; }
footer .foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 36px; }
@media (max-width: 880px) { footer .foot-grid { grid-template-columns: 1fr 1fr; } }
footer h4 { font-family: 'Poppins', sans-serif; font-weight: 600; font-size: 0.76rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--chalk); margin-bottom: 14px; }
footer a { color: #8A9098; text-decoration: none; display: block; margin-bottom: 8px; }
footer a:hover { color: var(--signal); }
.foot-legal { border-top: 1px solid rgba(244,240,232,0.1); padding-top: 22px; font-size: 0.8rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ---------- Utility ---------- */
.center { text-align: center; }
.mt-1 { margin-top: 12px; } .mt-2 { margin-top: 24px; } .mt-3 { margin-top: 40px; }
.mb-2 { margin-bottom: 24px; }
.max-copy { max-width: 720px; }
.tick-list { list-style: none; }
.tick-list li { padding-left: 30px; position: relative; margin-bottom: 12px; }
.tick-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }
.breadcrumb { font-size: 0.85rem; padding: 18px 0 0; color: #8A8378; }
.breadcrumb a { color: var(--signal-dark); text-decoration: none; }
a.inline { color: var(--signal-dark); }