/* Consulbook — shared styles */

:root {
  --paper: #F7F8FA;
  --surface: #FFFFFF;
  --ink: #0F2A44;
  --text: #24313F;
  --muted: #5E6B7A;
  --rule: #D9DFE6;
  --panel: #0F2A44;
  --panel-text: #E9EEF4;
  --panel-muted: #A9B8C9;
  --good: #2E7D5B;
  --good-bg: #E6F2EC;
  --btn-bg: #0F2A44;
  --btn-text: #F7F8FA;
  --doc-bg: #FFFFFF;
  --doc-rule: #C8D0DA;

  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --measure: 64ch;
  --col: 1080px;
  --gutter: 20px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0B1826;
    --surface: #10233A;
    --ink: #E9EEF4;
    --text: #C9D3DE;
    --muted: #8C9AAB;
    --rule: #23364D;
    --panel: #14304F;
    --panel-text: #E9EEF4;
    --panel-muted: #A9B8C9;
    --good: #6FC49A;
    --good-bg: #14332A;
    --btn-bg: #E9EEF4;
    --btn-text: #0F2A44;
    --doc-bg: #10233A;
    --doc-rule: #2C4360;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0B1826;
  --surface: #10233A;
  --ink: #E9EEF4;
  --text: #C9D3DE;
  --muted: #8C9AAB;
  --rule: #23364D;
  --panel: #14304F;
  --panel-text: #E9EEF4;
  --panel-muted: #A9B8C9;
  --good: #6FC49A;
  --good-bg: #14332A;
  --btn-bg: #E9EEF4;
  --btn-text: #0F2A44;
  --doc-bg: #10233A;
  --doc-rule: #2C4360;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  padding-inline: var(--gutter);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--good);
  outline-offset: 2px;
}

.wrap { max-width: var(--col); margin-inline: auto; }

/* Header */
.site-header {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding-block: 20px 16px;
  border-bottom: 1px solid var(--rule);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand img { width: 34px; height: 34px; border-radius: 50%; }
.brand span { font-family: var(--sans); font-weight: 600; font-size: 20px; letter-spacing: -0.01em; }
.nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.nav a { text-decoration: none; font-size: 15px; color: var(--text); }
.nav a:hover { text-decoration: underline; }
.nav .btn { font-size: 15px; }
.nav a.btn { color: var(--btn-text); }

/* Buttons */
.btn {
  display: inline-block; padding: 12px 18px; border-radius: 6px;
  background: var(--btn-bg); color: var(--btn-text);
  text-decoration: none; font-weight: 500; border: 1px solid transparent; cursor: pointer;
  font-family: var(--sans); font-size: 16px; line-height: 1.2;
}
.btn.secondary { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn:hover { filter: brightness(1.08); }

/* Type */
h1, h2, h3 { font-family: var(--serif); color: var(--ink); font-weight: 500; line-height: 1.15; text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(34px, 5vw, 50px); }
h2 { font-size: clamp(26px, 3.2vw, 34px); }
h3 { font-size: 21px; }
p { margin: 0; max-width: var(--measure); }
.lead { font-size: 20px; line-height: 1.5; color: var(--text); }
.eyebrow { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.small { font-size: 15px; color: var(--muted); }

/* Sections */
.section { padding-block: 64px; border-bottom: 1px solid var(--rule); }
.section:last-of-type { border-bottom: 0; }
.section-head { display: grid; gap: 12px; margin-bottom: 32px; }
.stack { display: grid; gap: 16px; align-content: start; }
.stack-lg { display: grid; gap: 28px; align-content: start; }

/* Hero */
.hero { padding-block: 56px 64px; border-bottom: 1px solid var(--rule); }
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: start; }
.hero .stack-lg { gap: 22px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 6px; }

/* Document motif */
.docs { display: grid; gap: 16px; }
.doc {
  background: var(--doc-bg); border: 1px solid var(--doc-rule); border-radius: 4px;
  padding: 18px 20px; font-family: var(--mono); font-size: 13.5px; line-height: 1.55; color: var(--text);
}
.doc .doc-label { font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.doc .clause { margin: 0; max-width: none; }
.doc .clause b { font-weight: 600; color: var(--ink); }
.doc .blank { display: inline-block; min-width: 9ch; border-bottom: 1px solid var(--muted); vertical-align: baseline; }
.doc .sig { display: flex; justify-content: space-between; gap: 16px; margin-top: 14px; padding-top: 10px; border-top: 1px dashed var(--doc-rule); color: var(--muted); font-size: 12px; }
.sms { display: grid; gap: 6px; }
.sms .meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
.sms .bubble { background: var(--good-bg); border-left: 3px solid var(--good); padding: 10px 12px; border-radius: 4px; }
.sms .bubble b { color: var(--good); font-weight: 600; }

/* Steps (a real sequence) */
.steps { display: grid; gap: 0; counter-reset: step; list-style: none; margin: 0; padding: 0; }
.steps li { display: grid; grid-template-columns: 56px 1fr; gap: 16px; padding-block: 22px; border-top: 1px solid var(--rule); }
.steps li:first-child { border-top: 0; padding-top: 0; }
.steps .num { font-family: var(--mono); color: var(--muted); font-size: 13px; padding-top: 6px; }
.steps h3 { margin-bottom: 6px; }

/* Plain lists */
.plain { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; max-width: var(--measure); }
.plain li { padding-left: 22px; position: relative; }
.plain li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 10px; height: 1px; background: var(--muted); }

/* Two-column text */
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }

/* Navy panel: the one bold move */
.panel {
  background: var(--panel); color: var(--panel-text);
  border-radius: 6px; padding: 40px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
}
.panel h2, .panel h3 { color: var(--panel-text); }
.panel p { color: var(--panel-text); }
.panel .eyebrow { color: var(--panel-muted); }
.panel a { color: var(--panel-text); }

/* Form */
.form { display: grid; gap: 14px; max-width: 560px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 14px; color: var(--muted); }
.field input, .field select, .field textarea {
  font: inherit; font-size: 16px; color: var(--text); background: var(--surface);
  border: 1px solid var(--rule); border-radius: 6px; padding: 11px 12px; width: 100%;
}
.field textarea { min-height: 110px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form .btn { justify-self: start; }

/* Footer */
.site-footer { padding-block: 36px 48px; border-top: 1px solid var(--rule); display: grid; gap: 14px; color: var(--muted); font-size: 14.5px; }
.site-footer p { max-width: 80ch; }
.site-footer .links { display: flex; gap: 18px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

/* Responsive */
@media (max-width: 820px) {
  body { font-size: 16px; }
  .hero-grid, .cols, .panel, .form-row { grid-template-columns: 1fr; }
  .panel { padding: 28px 22px; gap: 24px; }
  .hero { padding-block: 40px 48px; }
  .section { padding-block: 48px; }
  .steps li { grid-template-columns: 40px 1fr; gap: 12px; }
  .nav .btn { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}