/* ============================================================
   Legal Billing — landing page. Navy + silver, engraved-hairline
   legal-instrument aesthetic. Spectral / Inter / IBM Plex Mono.
   ============================================================ */

:root {
  --ink:        #0A1826;  /* deepest navy — hero ground        */
  --navy:       #142C46;
  --navy-2:     #1D3D5E;
  --steel:      #4C7FB0;  /* single interactive accent          */
  --steel-deep: #2C567E;
  --silver:     #B9C3CE;  /* silver text / hairlines on navy    */
  --silver-mut: #7E8C9B;
  --platinum:   #E9EDF2;  /* brightest text on navy             */
  --paper:      #F6F7F9;  /* light sections / bill paper        */
  --paper-2:    #FFFFFF;
  --paper-line: #E2E6EB;
  --ink-paper:  #12212F;  /* ink on light                       */
  --muted-paper:#5C6B7A;

  --serif: 'Spectral', Georgia, 'Times New Roman', serif;
  --sans:  'Inter', system-ui, -apple-system, sans-serif;
  --mono:  'IBM Plex Mono', ui-monospace, monospace;

  --edge: 1px solid rgba(185,195,206,.22);
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink-paper);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }

/* ---------- engraved hairline eyebrow ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--steel);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
}
.eyebrow::before {
  content: "";
  width: 34px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--silver));
}
.on-navy .eyebrow { color: var(--silver); }
.on-navy .eyebrow::before { background: linear-gradient(90deg, transparent, var(--steel)); }

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,24,38,.82);
  backdrop-filter: blur(10px);
  border-bottom: var(--edge);
}
.nav .wrap { display: flex; align-items: center; gap: 20px; height: 70px; }
.brand {
  display: flex; align-items: center; gap: 11px;
  font-family: var(--serif);
  font-size: 20px; font-weight: 600; letter-spacing: .01em;
  color: var(--platinum);
}
.brand .seal {
  width: 30px; height: 30px; flex: none;
  color: var(--silver);
}
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.nav-links a.text {
  color: var(--silver); font-size: 14.5px; padding: 8px 14px; border-radius: 7px;
}
.nav-links a.text:hover { color: var(--platinum); }

.btn {
  font-family: var(--sans); font-size: 14.5px; font-weight: 600;
  padding: 10px 18px; border-radius: 8px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid transparent; transition: transform .12s ease, background .18s ease, border-color .18s ease;
}
.btn-solid { background: var(--steel); color: #fff; }
.btn-solid:hover { background: var(--steel-deep); transform: translateY(-1px); }
.btn-ghost { color: var(--platinum); border-color: rgba(185,195,206,.35); }
.btn-ghost:hover { border-color: var(--silver); background: rgba(185,195,206,.08); }
.btn-lg { padding: 14px 26px; font-size: 15.5px; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--platinum);
  overflow: hidden;
}
/* generated navy + silver guilloché backdrop, with a left gradient for text contrast */
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    linear-gradient(90deg, var(--ink) 2%, rgba(10,24,38,.74) 40%, rgba(10,24,38,.12) 100%),
    url("../images/hero-bg.webp") top right / cover no-repeat,
    var(--ink);
}
.hero .wrap {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center;
  padding-top: 84px; padding-bottom: 92px;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(38px, 5.2vw, 62px);
  line-height: 1.04;
  letter-spacing: -.015em;
  margin: 0 0 22px;
  color: #fff;
}
.hero h1 .shine {
  background: linear-gradient(92deg, #EEF2F6, #AFC0D2 55%, #E7ECF1);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead {
  font-size: 18.5px; line-height: 1.62; color: var(--silver);
  max-width: 33em; margin: 0 0 34px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-note {
  margin-top: 22px; font-family: var(--mono); font-size: 12.5px; letter-spacing: .04em;
  color: var(--silver-mut); display: flex; flex-wrap: wrap; align-items: center;
  gap: 4px 12px;
}
.hero-note span { white-space: nowrap; }
.hero-note b { color: var(--silver); font-weight: 500; }

/* ---------- the signature bill artifact ---------- */
.bill-stage { position: relative; display: flex; justify-content: center; }
.bill {
  width: 100%; max-width: 400px;
  background: var(--paper-2);
  color: var(--ink-paper);
  border-radius: 4px;
  padding: 30px 30px 26px;
  box-shadow:
    0 1px 0 1px rgba(185,195,206,.35),
    0 40px 80px -30px rgba(0,0,0,.65),
    0 12px 26px -12px rgba(0,0,0,.5);
  transform: rotate(-1.3deg);
  font-size: 12.5px;
  position: relative;
}
.bill::before { /* silver rule top edge */
  content: ""; position: absolute; left: 30px; right: 30px; top: 0;
  height: 3px; background: linear-gradient(90deg, var(--steel), var(--silver));
  border-radius: 4px 4px 0 0;
}
.bill .b-firm { font-family: var(--serif); font-weight: 600; font-size: 15px; color: var(--navy); }
.bill .b-kind {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--steel); margin-top: 2px;
}
.bill .b-re {
  margin: 14px 0 12px; padding-bottom: 12px; border-bottom: 1px solid var(--paper-line);
  font-weight: 600; text-decoration: underline; text-underline-offset: 3px; color: var(--ink-paper);
}
.bill .b-intro { color: var(--muted-paper); font-size: 11.5px; margin-bottom: 12px; }
.bill .b-row { display: flex; gap: 10px; padding: 6px 0; align-items: baseline; }
.bill .b-row .n { color: var(--silver-mut); font-family: var(--mono); font-size: 10.5px; width: 16px; flex: none; }
.bill .b-row .d { flex: 1; color: #26384a; }
.bill .b-row .a { font-family: var(--mono); font-size: 11.5px; color: var(--ink-paper); white-space: nowrap; }
.bill .b-total {
  margin-top: 12px; padding-top: 12px; border-top: 2px solid var(--navy);
  display: flex; justify-content: space-between; align-items: baseline;
}
.bill .b-total .l { font-family: var(--serif); font-weight: 600; color: var(--navy); }
.bill .b-total .v { font-family: var(--mono); font-weight: 600; font-size: 15px; color: var(--navy); }
.bill-tag {
  position: absolute; bottom: -16px; right: 6px;
  background: var(--navy); color: var(--silver);
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase;
  padding: 8px 13px; border-radius: 7px; border: 1px solid rgba(185,195,206,.25);
  transform: rotate(-1.3deg);
}

/* ============================================================
   Sections (light)
   ============================================================ */
.section { padding: 92px 0; }
.section h2 {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(28px, 3.4vw, 40px); line-height: 1.1; letter-spacing: -.01em;
  margin: 0 0 16px; color: var(--ink-paper);
}
.section .sub { font-size: 17px; color: var(--muted-paper); max-width: 40em; margin: 0 0 46px; }

/* features */
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feature {
  background: var(--paper-2); border: 1px solid var(--paper-line); border-radius: 14px;
  padding: 28px 26px; position: relative;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.feature:hover { border-color: #C6D0DB; transform: translateY(-2px); box-shadow: 0 16px 34px -22px rgba(20,44,70,.4); }
.feature .ic {
  width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--navy), var(--steel)); color: #fff; margin-bottom: 18px;
}
.feature h3 { font-family: var(--serif); font-size: 20px; font-weight: 600; margin: 0 0 8px; color: var(--navy); }
.feature p { margin: 0; font-size: 14.5px; color: var(--muted-paper); }
.feature .grades {
  margin-top: 14px; display: flex; gap: 6px; flex-wrap: wrap;
}
.feature .grades span {
  font-family: var(--mono); font-size: 11px; letter-spacing: .06em;
  color: var(--steel-deep); background: #EAF0F6; border: 1px solid #D6E0EA;
  padding: 3px 8px; border-radius: 6px;
}

/* steps (real sequence → numbered) */
.steps-band { background: var(--ink); color: var(--platinum); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; counter-reset: s; }
.step { position: relative; padding-top: 26px; }
.step::before {
  counter-increment: s; content: counter(s, decimal-leading-zero);
  font-family: var(--mono); font-size: 13px; letter-spacing: .1em; color: var(--steel);
  position: absolute; top: 0; left: 0;
}
.step .bar { height: 1px; background: linear-gradient(90deg, var(--steel), transparent); margin: 0 0 16px; }
.step h3 { font-family: var(--serif); font-size: 22px; font-weight: 600; margin: 0 0 8px; color: #fff; }
.step p { margin: 0; font-size: 14.5px; color: var(--silver); }

/* faq */
.faq-band { background: var(--paper); }
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 40px; }
details.q {
  border-bottom: 1px solid var(--paper-line); padding: 6px 0;
}
details.q summary {
  list-style: none; cursor: pointer; padding: 16px 0;
  font-family: var(--serif); font-size: 18px; font-weight: 600; color: var(--navy);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
details.q summary::-webkit-details-marker { display: none; }
details.q summary .pm {
  font-family: var(--mono); font-size: 18px; color: var(--steel); transition: transform .2s ease; flex: none;
}
details.q[open] summary .pm { transform: rotate(45deg); }
details.q .ans { padding: 0 0 18px; font-size: 15px; color: var(--muted-paper); max-width: 46em; }

/* CTA closer */
.closer { background: linear-gradient(160deg, var(--navy), var(--ink)); color: #fff; text-align: center; }
.closer h2 { color: #fff; }
.closer .sub { color: var(--silver); margin: 0 auto 34px; }

/* footer */
.foot { background: var(--ink); color: var(--silver-mut); border-top: var(--edge); }
.foot .wrap { padding: 40px 28px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.foot .brand { font-size: 17px; }
.foot .fr { margin-left: auto; display: flex; gap: 22px; align-items: center; font-size: 13.5px; }
.foot .fr a:hover { color: var(--silver); }
.foot .cc { width: 100%; border-top: var(--edge); padding-top: 18px; margin-top: 6px;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .05em; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 48px; padding-top: 60px; padding-bottom: 70px; }
  .bill-stage { order: -1; }
  .features, .steps, .faq { grid-template-columns: 1fr; }
  .section { padding: 68px 0; }
  .nav-links a.text.hide-sm { display: none; }
}
@media (max-width: 480px) {
  .wrap { padding: 0 18px; }
  .nav-links .btn-ghost { display: none; }
}

/* a11y */
:focus-visible { outline: 2px solid var(--steel); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ============ pricing ============ */
.pricing-band { background: var(--paper-2); }

/* seat-band toggle */
.band-toggle {
  display: inline-flex; gap: 4px; padding: 4px; margin: 0 0 30px;
  background: var(--paper); border: 1px solid var(--paper-line); border-radius: 12px;
}
.band-btn {
  font-family: var(--sans); font-size: 13.5px; font-weight: 600; color: var(--muted-paper);
  background: transparent; border: none; border-radius: 9px; padding: 9px 18px;
  cursor: pointer; display: inline-flex; align-items: center; gap: 7px;
  transition: background .15s ease, color .15s ease;
}
.band-btn:hover { color: var(--navy); }
.band-btn .band-n {
  font-family: var(--mono); font-size: 11px; color: var(--steel-deep);
  background: #EAF0F6; padding: 2px 6px; border-radius: 6px;
}
.band-btn.is-active { background: var(--steel); color: #fff; }
.band-btn.is-active .band-n { background: rgba(255,255,255,.22); color: #fff; }

.plans {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: stretch;
}
.plan-enterprise { background: var(--paper); }
.plan-price-custom { font-family: var(--serif); font-size: 26px; font-weight: 600; color: var(--ink-paper); }
.plan {
  background: var(--paper-2); border: 1px solid var(--paper-line); border-radius: 14px;
  padding: 26px 22px 24px; position: relative; display: flex; flex-direction: column;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.plan:hover { border-color: #C6D0DB; transform: translateY(-2px); box-shadow: 0 16px 34px -22px rgba(20,44,70,.4); }
.plan-featured { border-color: var(--steel); box-shadow: 0 18px 40px -24px rgba(44,86,126,.55); }
.plan-badge {
  position: absolute; top: -11px; left: 22px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase;
  color: #fff; background: var(--steel); padding: 4px 10px; border-radius: 20px;
}
.plan-name { font-family: var(--serif); font-size: 21px; font-weight: 600; color: var(--navy); }
.plan-size { font-size: 13px; color: var(--muted-paper); margin: 2px 0 16px; }
.plan-price { font-family: var(--serif); font-size: 34px; font-weight: 600; color: var(--ink-paper); line-height: 1; }
.plan-price .cur { font-size: 16px; font-weight: 500; color: var(--muted-paper); margin-right: 2px; }
.plan-price .per { font-size: 14px; font-weight: 400; color: var(--muted-paper); margin-left: 3px; }
.plan-list { list-style: none; margin: 18px 0 22px; padding: 0; display: grid; gap: 9px; }
.plan-list li {
  font-size: 13.5px; color: var(--muted-paper); padding-left: 22px; position: relative;
}
.plan-list li::before {
  content: ""; position: absolute; left: 2px; top: 6px; width: 10px; height: 6px;
  border-left: 2px solid var(--steel); border-bottom: 2px solid var(--steel);
  transform: rotate(-45deg);
}
.plan-cta { margin-top: auto; justify-content: center; }
/* on the light pricing band, the ghost CTA must be dark-on-light */
.plan .btn-ghost { color: var(--navy); border-color: var(--paper-line); }
.plan .btn-ghost:hover { border-color: var(--steel); background: #EEF3F8; }
.plan-foot { margin: 30px 0 0; font-size: 14.5px; color: var(--muted-paper); }
.plan-foot a { color: var(--steel-deep); }

@media (max-width: 900px) {
  .plans { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .plans { grid-template-columns: 1fr; }
  .band-toggle { flex-wrap: wrap; }
  .band-btn { padding: 9px 14px; }
}