/* Digital Drive Advisory - shared styles */
:root {
  --paper: #f3f5f7;
  --paper-2: #e8ecf0;
  --ink: #0e2235;
  --ink-2: #2b3e52;
  --muted: #5e6e7e;
  --rule: #cfd7df;
  --ledger: #1f6f5c;
  --bank: #b3264a;
  --marker: #f2cd4a;
  --white: #ffffff;
  --serif: "IBM Plex Serif", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--ink); text-underline-offset: 3px; }
a:hover { color: var(--ledger); }
:focus-visible { outline: 3px solid var(--ledger); outline-offset: 3px; border-radius: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.num { font-variant-numeric: tabular-nums lining-nums; }

h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 4.6vw, 3.5rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; font-weight: 600; font-family: var(--sans); letter-spacing: 0; }
p { margin: 0 0 1em; max-width: 64ch; }

/* ---------- header ---------- */
.site-header { border-bottom: 1px solid var(--rule); background: var(--paper); position: sticky; top: 0; z-index: 10; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-name { font-family: var(--serif); font-size: 1.15rem; font-weight: 600; line-height: 1.1; }
.brand-name span { display: block; font-family: var(--sans); font-weight: 400; font-size: 0.78rem; color: var(--muted); }
.nav { display: flex; align-items: center; gap: 28px; font-size: 0.95rem; }
.nav a { text-decoration: none; color: var(--ink-2); }
.nav a:hover { color: var(--ink); text-decoration: underline; }

.btn { white-space: nowrap;
  display: inline-block; text-decoration: none; font-weight: 600; font-size: 1rem;
  padding: 13px 22px; border-radius: 6px; border: 1.5px solid var(--ink);
  transition: background-color .15s ease, color .15s ease;
}
.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: var(--ink-2); color: var(--white); }
.btn-secondary { background: transparent; color: var(--ink); }
.btn-secondary:hover { background: var(--white); color: var(--ink); }
.nav .btn { padding: 9px 16px; font-size: 0.92rem; color: var(--white); }
.nav .btn:hover { color: var(--white); text-decoration: none; }

/* ---------- hero ---------- */
.hero { padding: 72px 0 88px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.hero h1 { margin-bottom: 24px; max-width: 16ch; }
.hero .lede { font-size: 1.15rem; color: var(--ink-2); max-width: 46ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 20px; }
.reassure { font-size: 0.93rem; color: var(--muted); max-width: 44ch; }

/* the annotated trade confirmation */
.slip-wrap { position: relative; }
.slip {
  background: var(--white); border: 1px solid var(--rule); border-radius: 4px;
  padding: 26px 28px 22px; box-shadow: 0 1px 0 var(--rule), 0 18px 40px -24px rgba(14, 34, 53, .35);
  font-size: 0.95rem;
}
.slip-head { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px solid var(--rule); padding-bottom: 12px; margin-bottom: 8px; }
.slip-title { font-weight: 600; }
.slip-ref { color: var(--muted); font-size: 0.85rem; }
.slip dl { margin: 0; display: grid; grid-template-columns: 1fr auto; }
.slip dt, .slip dd { padding: 9px 0; border-bottom: 1px dashed var(--paper-2); margin: 0; }
.slip dt { color: var(--muted); }
.slip dd { text-align: right; font-weight: 500; }
.slip dd.rate { position: relative; font-weight: 700; }
.mark {
  background-image: linear-gradient(var(--marker), var(--marker));
  background-repeat: no-repeat; background-size: 100% 70%; background-position: 0 60%;
  padding: 0 4px; margin: 0 -4px;
}
.slip .mark { animation: sweep 900ms 500ms cubic-bezier(.3,.7,.3,1) both; }
@keyframes sweep { from { background-size: 0% 70%; } to { background-size: 100% 70%; } }
@media (prefers-reduced-motion: reduce) { .slip .mark { animation: none; } }

.note {
  margin: 18px 0 0 28px; padding: 18px 20px; background: var(--ink); color: var(--white);
  border-radius: 4px; position: relative; font-size: 0.95rem;
}
.note::before {
  content: ""; position: absolute; top: -9px; left: 34px; width: 16px; height: 16px;
  background: var(--ink); transform: rotate(45deg);
}
.note p { margin: 0 0 6px; max-width: none; }
.note .compare { display: grid; grid-template-columns: 1fr auto; gap: 2px 16px; margin: 4px 0 12px; }
.note .compare span:nth-child(even) { text-align: right; }
.note .result { border-top: 1px solid rgba(255,255,255,.2); padding-top: 10px; font-size: 1.05rem; }
.note .result strong { color: var(--marker); font-weight: 700; }
.slip-caption { margin: 12px 0 0 28px; font-size: 0.85rem; color: var(--muted); }

/* ---------- generic sections ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--white); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.section-head { max-width: 60ch; margin-bottom: 48px; }
.section-head p { color: var(--ink-2); font-size: 1.08rem; margin-top: 16px; }

/* why it goes unnoticed */
.reasons { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.reasons h3 { margin-bottom: 10px; padding-top: 18px; border-top: 3px solid var(--ink); }
.reasons p { color: var(--ink-2); }

/* calculator band */
.calc { background: var(--ink); color: var(--white); padding: 88px 0; }
.calc .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.calc h2 { color: var(--white); margin-bottom: 16px; }
.calc p { color: #c9d4de; }
.calc-panel { background: #15304a; border-radius: 6px; padding: 32px; }
.field { margin-bottom: 26px; }
.field label { display: flex; justify-content: space-between; align-items: baseline; font-size: 0.95rem; color: #c9d4de; margin-bottom: 10px; }
.field output { color: var(--white); font-weight: 600; font-size: 1.05rem; }
input[type="range"] { width: 100%; accent-color: var(--marker); height: 28px; }
.calc-result { border-top: 1px solid rgba(255,255,255,.18); padding-top: 22px; }
.calc-result .label { font-size: 0.95rem; color: #c9d4de; }
.calc-result .big { font-family: var(--serif); font-size: clamp(2.4rem, 5vw, 3.4rem); line-height: 1.1; margin: 4px 0 6px; }
.calc-result .sub { font-size: 0.92rem; color: #c9d4de; margin: 0; }
.fineprint { font-size: 0.85rem; color: #9fb0c0; margin-top: 18px; }

/* process (a real sequence, so numbered) */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.steps li { counter-increment: step; position: relative; padding-top: 58px; }
.steps li::before {
  content: counter(step); position: absolute; top: 0; left: 0; width: 40px; height: 40px; border-radius: 50%;
  border: 1.5px solid var(--ink); display: grid; place-items: center; font-weight: 600; font-variant-numeric: tabular-nums;
}
.steps li:not(:last-child)::after { content: ""; position: absolute; top: 20px; left: 52px; right: -20px; height: 1px; background: var(--rule); }
.steps h3 { margin-bottom: 8px; }
.steps p { color: var(--ink-2); font-size: 0.98rem; }

/* the engine */
.engine { display: grid; grid-template-columns: 1fr 1.15fr; gap: 64px; align-items: start; }
.engine-list { margin: 0; display: grid; gap: 0; }
.engine-list dt { font-weight: 600; padding-top: 18px; border-top: 1px solid var(--rule); }
.engine-list dt:first-child { border-top: 3px solid var(--ink); }
.engine-list dd { margin: 4px 0 18px; color: var(--ink-2); }
@media (max-width: 980px) { .engine { grid-template-columns: 1fr; gap: 32px; } }

/* services comparison */
.compare-table { width: 100%; border-collapse: collapse; background: var(--white); border: 1px solid var(--rule); border-radius: 6px; overflow: hidden; }
.compare-table th, .compare-table td { text-align: left; vertical-align: top; padding: 18px 20px; border-bottom: 1px solid var(--paper-2); }
.compare-table thead th { background: var(--paper); border-bottom: 1px solid var(--rule); font-family: var(--serif); font-size: 1.2rem; font-weight: 600; }
.compare-table thead th small { display: block; font-family: var(--sans); font-weight: 400; font-size: 0.9rem; color: var(--muted); margin-top: 4px; }
.compare-table tbody th { width: 18%; color: var(--muted); font-weight: 500; font-size: 0.93rem; }
.compare-table td { width: 27.3%; }
.compare-table tr:last-child th, .compare-table tr:last-child td { border-bottom: 0; }
.compare-table .first { background: #fbf6e3; }
.compare-table thead .first { background: #f6ecc4; }

/* mobile version of the comparison */
.service-stack { display: none; gap: 16px; }
.service-stack section { background: var(--white); border: 1px solid var(--rule); border-radius: 6px; padding: 20px; }
.service-stack section.first { background: #fbf6e3; }
.service-stack h3 { font-family: var(--serif); font-size: 1.25rem; font-weight: 600; margin-bottom: 4px; }
.service-stack .price { color: var(--muted); margin-bottom: 12px; }
.service-stack dl { margin: 0; }
.service-stack dt { font-size: 0.82rem; color: var(--muted); margin-top: 10px; }
.service-stack dd { margin: 2px 0 0; }

/* independence + data */
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.pair h2 { margin-bottom: 18px; }
.pair ul { margin: 0; padding: 0; list-style: none; }
.pair li { padding: 12px 0 12px 30px; border-bottom: 1px solid var(--rule); position: relative; }
.pair li::before { content: ""; position: absolute; left: 2px; top: 22px; width: 14px; height: 2px; background: var(--ledger); }

/* who it's for */
.fit { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: start; }
.fit dl { margin: 0; }
.fit dt { font-weight: 600; margin-top: 22px; }
.fit dt:first-child { margin-top: 0; }
.fit dd { margin: 4px 0 0; color: var(--ink-2); }

/* faq */
.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary {
  cursor: pointer; list-style: none; padding: 22px 40px 22px 0; font-weight: 600; font-size: 1.08rem; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 18px; font-size: 1.5rem; font-weight: 400; color: var(--muted); }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { color: var(--ink-2); padding-bottom: 6px; }

/* scope of service notice */
.scope { padding: 0 0 96px; }
.scope-box { border: 1.5px solid var(--ink); border-left-width: 6px; border-radius: 4px; background: var(--white); padding: 28px 32px; }
.scope-box h2 { font-size: 1.35rem; margin-bottom: 12px; }
.scope-box p { color: var(--ink-2); max-width: 78ch; }
.scope-box p:last-child { margin-bottom: 0; }
@media (max-width: 760px) { .scope { padding-bottom: 64px; } .scope-box { padding: 22px 20px; } }

/* final call to action */
.closing { padding: 104px 0; text-align: left; }
.closing .wrap { display: grid; grid-template-columns: 1.3fr 1fr; gap: 64px; align-items: end; }
.closing h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 18px; }
.closing p { color: var(--ink-2); font-size: 1.08rem; }
.closing .contact { font-size: 1.05rem; }
.closing .contact a { font-weight: 600; }

/* footer */
.site-footer { border-top: 1px solid var(--rule); padding: 40px 0 56px; font-size: 0.88rem; color: var(--muted); }
.site-footer .wrap { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; }
.site-footer p { max-width: 80ch; }
.site-footer a { color: var(--muted); }
.legal-fill { background: #fbf6e3; outline: 1px dashed #c9a227; padding: 0 3px; } /* remove once filled in */

/* privacy page */
.doc { padding: 64px 0 96px; }
.doc h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: 12px; }
.doc h2 { font-size: 1.4rem; margin: 40px 0 12px; }
.doc .updated { color: var(--muted); }
.doc ul { padding-left: 22px; max-width: 64ch; }
.doc li { margin-bottom: 6px; }
.doc .wrap { max-width: 820px; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero .wrap, .calc .wrap, .pair, .fit, .closing .wrap { grid-template-columns: 1fr; gap: 48px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .steps li:not(:last-child)::after { display: none; }
  .reasons { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav a:not(.btn) { display: none; }
  .hero { padding: 44px 0 64px; }
  .section, .calc, .closing { padding: 64px 0; }
  .note, .slip-caption { margin-left: 0; }
  .steps { grid-template-columns: 1fr; }
  .site-footer .wrap { grid-template-columns: 1fr; gap: 16px; }
  .brand-name span { display: none; }

  .compare-table { display: none; }
  .service-stack { display: grid; }
}
@media (max-width: 420px) {
  .nav .btn { padding: 8px 12px; font-size: 0.85rem; }
  .slip { padding: 20px 18px; }
}
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }