/* =========================================================
   CRUX Advisory LLC — Design System
   Navy + gold, clean, modern finance partner aesthetic
   ========================================================= */

:root {
  /* Brand palette */
  --navy-900: #071A33;
  --navy-800: #0A2140;
  --navy-700: #0F2A52;
  --navy-600: #163663;
  --gold-500: #C9A15A;
  --gold-400: #D8B879;
  --gold-600: #A8823E;

  /* Neutrals */
  --ink: #16202E;
  --slate: #4A5567;
  --muted: #6B7688;
  --line: #E6E4DD;
  --paper: #FAF9F5;
  --paper-2: #F3F1EA;
  --white: #FFFFFF;

  /* Utility */
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(7, 26, 51, .06), 0 2px 8px rgba(7, 26, 51, .05);
  --shadow-md: 0 10px 30px rgba(7, 26, 51, .10);
  --shadow-lg: 0 24px 60px rgba(7, 26, 51, .16);
  --container: 1140px;
  --ease: cubic-bezier(.22, 1, .36, 1);

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Fraunces", "Iowan Old Style", Georgia, "Times New Roman", serif;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; line-height: 1.12; letter-spacing: -0.01em; color: var(--ink); margin: 0 0 .5em; }
p { margin: 0 0 1.1rem; color: var(--slate); }
ul { margin: 0; padding: 0; }

/* ---------- Layout helpers ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 92px 0; }
.section--tight { padding: 64px 0; }
.section--paper2 { background: var(--paper-2); }
.section--navy { background: var(--navy-800); color: #DCE3EE; }
.section--navy h1, .section--navy h2, .section--navy h3 { color: #fff; }
.section--navy p { color: #B7C2D4; }
.center { text-align: center; }
.narrow { max-width: 760px; margin-left: auto; margin-right: auto; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold-600);
  margin-bottom: 18px;
}
.section--navy .eyebrow { color: var(--gold-400); }

.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; }
h1 { font-size: clamp(2.3rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.32rem; }
.lead { font-size: 1.15rem; color: var(--slate); }
.section--navy .lead { color: #C6D0DF; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55em;
  font-family: var(--font-sans); font-weight: 600; font-size: .98rem;
  padding: 14px 26px; border-radius: 999px; border: 1.5px solid transparent;
  transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--gold { background: var(--gold-500); color: var(--navy-900); box-shadow: 0 8px 22px rgba(201, 161, 90, .35); }
.btn--gold:hover { background: var(--gold-400); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(201, 161, 90, .42); }
.btn--navy { background: var(--navy-800); color: #fff; }
.btn--navy:hover { background: var(--navy-700); transform: translateY(-2px); }
.btn--outline { background: transparent; border-color: rgba(22,32,46,.22); color: var(--ink); }
.btn--outline:hover { border-color: var(--navy-800); background: var(--navy-800); color: #fff; }
.btn--ghost-light { background: transparent; border-color: rgba(255,255,255,.28); color: #fff; }
.btn--ghost-light:hover { background: rgba(255,255,255,.10); border-color: rgba(255,255,255,.6); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }
.btn-row.center { justify-content: center; }

.arrow-link {
  display: inline-flex; align-items: center; gap: .4em;
  font-family: var(--font-sans); font-weight: 600; color: var(--gold-600);
}
.arrow-link svg { transition: transform .2s var(--ease); }
.arrow-link:hover svg { transform: translateX(4px); }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(250, 249, 245, .82);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark { width: 38px; height: 38px; flex: none; }
.brand__text { line-height: 1; }
.brand__name { font-family: var(--font-serif); font-weight: 600; font-size: 1.32rem; letter-spacing: .02em; color: var(--navy-800); display: block; }
.brand__sub { font-family: var(--font-sans); font-size: .62rem; letter-spacing: .34em; text-transform: uppercase; color: var(--gold-600); font-weight: 600; }
.nav__menu { display: flex; align-items: center; gap: 34px; }
.nav__links { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav__links a { font-family: var(--font-sans); font-weight: 500; font-size: .98rem; color: var(--slate); transition: color .2s; position: relative; }
.nav__links a:hover, .nav__links a.is-active { color: var(--navy-800); }
.nav__links a.is-active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px; background: var(--gold-500); border-radius: 2px;
}
.nav__phone { font-family: var(--font-sans); font-weight: 600; font-size: .95rem; color: var(--navy-800); display: inline-flex; align-items: center; gap: 7px; }
.nav__phone svg { color: var(--gold-600); }
.nav__toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: #fff; border-radius: 10px; align-items: center; justify-content: center; }
.nav__toggle span, .nav__toggle span::before, .nav__toggle span::after {
  content: ""; display: block; width: 20px; height: 2px; background: var(--navy-800); border-radius: 2px; position: relative; transition: .25s var(--ease);
}
.nav__toggle span::before { position: absolute; top: -6px; }
.nav__toggle span::after { position: absolute; top: 6px; }
body.nav-open .nav__toggle span { background: transparent; }
body.nav-open .nav__toggle span::before { top: 0; transform: rotate(45deg); }
body.nav-open .nav__toggle span::after { top: 0; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 480px at 82% -8%, rgba(201,161,90,.18), transparent 60%),
    linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 46%, var(--navy-700) 100%);
  color: #fff;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 26px 26px; opacity: .5;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 40%, transparent);
          mask-image: linear-gradient(to bottom, transparent, #000 40%, transparent);
}
.hero__inner { position: relative; z-index: 2; padding: 104px 0 108px; max-width: 780px; }
.hero h1 { color: #fff; font-size: clamp(2.5rem, 5.4vw, 4rem); }
.hero h1 .accent { color: var(--gold-400); }
.hero__sub { font-size: 1.22rem; color: #C6D0DF; margin: 22px 0 34px; max-width: 640px; }
.hero__trust { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 40px; color: #9FB0C6; font-size: .92rem; }
.hero__trust span { display: inline-flex; align-items: center; gap: 9px; }
.hero__trust svg { color: var(--gold-400); flex: none; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 30px; box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card--link:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: #DCD7C7; }
.card__icon {
  width: 54px; height: 54px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(150deg, var(--navy-800), var(--navy-600)); color: var(--gold-400); margin-bottom: 22px;
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: .5rem; }
.card p { font-size: .98rem; margin-bottom: 1rem; }
.card__list { list-style: none; margin: 0 0 20px; }
.card__list li { position: relative; padding-left: 26px; margin-bottom: 9px; color: var(--slate); font-size: .96rem; }
.card__list li::before {
  content: ""; position: absolute; left: 0; top: .55em; width: 8px; height: 8px; border-radius: 50%;
  background: var(--gold-500); box-shadow: 0 0 0 4px rgba(201,161,90,.15);
}

/* ---------- Feature / split ---------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.split--reverse .split__media { order: 2; }
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stat {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; box-shadow: var(--shadow-sm);
}
.stat__num { font-family: var(--font-serif); font-size: 2.1rem; color: var(--navy-800); line-height: 1; margin-bottom: 8px; }
.stat__num .u { color: var(--gold-600); }
.stat__label { font-size: .92rem; color: var(--muted); }

/* Check list */
.checklist { list-style: none; display: grid; gap: 14px; }
.checklist.cols-2 { grid-template-columns: 1fr 1fr; gap: 14px 30px; }
.checklist li { position: relative; padding-left: 38px; color: var(--ink); font-weight: 500; }
.checklist li span { font-weight: 400; color: var(--muted); display: block; font-size: .95rem; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: 1px; width: 24px; height: 24px; border-radius: 50%;
  background: rgba(201,161,90,.16);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23A8823E' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: center;
}
.section--navy .checklist li { color: #fff; }
.section--navy .checklist li span { color: #A9B6C9; }
.section--navy .checklist li::before { background-color: rgba(216,184,121,.18);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23D8B879' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E"); }

/* ---------- Signs / problems ---------- */
.sign {
  display: flex; gap: 16px; padding: 24px; background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
.sign__mark { flex: none; width: 40px; height: 40px; border-radius: 10px; background: var(--paper-2); color: var(--gold-600); display: flex; align-items: center; justify-content: center; }
.sign h4 { font-family: var(--font-sans); font-size: 1.02rem; margin: 2px 0 4px; }
.sign p { font-size: .94rem; margin: 0; }

/* ---------- Pricing band ---------- */
.pricing-band {
  background: linear-gradient(150deg, var(--navy-900), var(--navy-700));
  color: #fff; border-radius: 22px; padding: 56px; text-align: center; box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.pricing-band::before {
  content: ""; position: absolute; width: 340px; height: 340px; border-radius: 50%;
  background: radial-gradient(circle, rgba(201,161,90,.28), transparent 70%); top: -120px; right: -80px;
}
.pricing-band .amount { font-family: var(--font-serif); font-size: clamp(2.6rem, 6vw, 3.8rem); color: #fff; margin: 8px 0 6px; position: relative; }
.pricing-band .amount .u { color: var(--gold-400); }
.pricing-band p { color: #C6D0DF; max-width: 600px; margin: 0 auto 26px; position: relative; }

/* ---------- CTA band ---------- */
.cta-band { text-align: center; }
.cta-band h2 { max-width: 720px; margin-left: auto; margin-right: auto; }
.cta-band p { max-width: 620px; margin-left: auto; margin-right: auto; margin-bottom: 30px; }

/* ---------- Service detail (services page) ---------- */
.service-block { padding: 78px 0; border-bottom: 1px solid var(--line); }
.service-block:last-of-type { border-bottom: none; }
.service-block .split { gap: 56px; }
.tag { display: inline-flex; align-items: center; gap: 8px; background: var(--paper-2); color: var(--gold-600);
  font-family: var(--font-sans); font-weight: 600; font-size: .8rem; letter-spacing: .04em; padding: 7px 14px; border-radius: 999px; margin-bottom: 18px; }
.mini-head { font-family: var(--font-sans); font-weight: 700; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: var(--navy-800); margin: 26px 0 12px; }
.deliverables { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; }
.deliverables li { position: relative; padding-left: 22px; font-size: .96rem; color: var(--slate); }
.deliverables li::before { content: ""; position: absolute; left: 0; top: .6em; width: 6px; height: 6px; background: var(--gold-500); border-radius: 50%; }

.panel {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm);
}
.panel--navy { background: linear-gradient(155deg, var(--navy-800), var(--navy-700)); color: #fff; border: none; }
.panel--navy h3, .panel--navy .mini-head { color: #fff; }
.panel--navy .deliverables li { color: #C6D0DF; }

/* ---------- About ---------- */
.founder { display: grid; grid-template-columns: 300px 1fr; gap: 48px; align-items: start; }
.founder__photo {
  aspect-ratio: 4/5; border-radius: 18px; overflow: hidden; box-shadow: var(--shadow-md);
  background: linear-gradient(160deg, var(--navy-700), var(--navy-900)); display: flex; align-items: center; justify-content: center; color: var(--gold-400);
}
.founder__photo .initials { font-family: var(--font-serif); font-size: 4.4rem; letter-spacing: .04em; }
.founder__photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 20%; }
.value-item h4 { font-family: var(--font-sans); font-size: 1.05rem; margin-bottom: 4px; display: flex; align-items: center; gap: 10px; }
.value-item h4 svg { color: var(--gold-600); flex: none; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: start; }
.contact-info .info-row { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.contact-info .info-row:last-child { border-bottom: none; }
.contact-info .info-row .ico { flex: none; width: 44px; height: 44px; border-radius: 11px; background: var(--navy-800); color: var(--gold-400); display: flex; align-items: center; justify-content: center; }
.contact-info .label { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.contact-info .value { font-family: var(--font-sans); font-weight: 600; font-size: 1.05rem; color: var(--ink); }

.form-card { background: var(--white); border: 1px solid var(--line); border-radius: 18px; padding: 38px; box-shadow: var(--shadow-md); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--font-sans); font-weight: 600; font-size: .9rem; color: var(--ink); margin-bottom: 7px; }
.field .req { color: var(--gold-600); }
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--font-sans); font-size: 1rem; color: var(--ink);
  padding: 13px 15px; border: 1.5px solid var(--line); border-radius: 10px; background: var(--paper);
  transition: border-color .18s, box-shadow .18s; -webkit-appearance: none; appearance: none;
}
.field textarea { min-height: 130px; resize: vertical; }
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7688' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--gold-500); box-shadow: 0 0 0 4px rgba(201,161,90,.16); background: #fff;
}
.form-note { font-size: .86rem; color: var(--muted); margin-top: 4px; }
.form-card .btn { width: 100%; justify-content: center; margin-top: 6px; }
.form-status { display: none; padding: 14px 16px; border-radius: 10px; font-size: .95rem; margin-bottom: 18px; font-weight: 500; }
.form-status.error { display: block; background: #FCEDEC; color: #B4231B; border: 1px solid #F3C6C2; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: #A9B6C9; padding: 72px 0 34px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.site-footer .brand__name { color: #fff; }
.site-footer p { color: #8FA0B8; font-size: .96rem; }
.footer-col h4 { font-family: var(--font-sans); font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: #fff; margin-bottom: 18px; }
.footer-col ul { list-style: none; display: grid; gap: 11px; }
.footer-col a { color: #A9B6C9; font-size: .96rem; transition: color .2s; }
.footer-col a:hover { color: var(--gold-400); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 26px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font-size: .88rem; color: #7488A2; }

/* ---------- Spectrum (range of support) ---------- */
.spectrum { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 44px; position: relative; }
.spectrum__step { text-align: center; padding: 0 20px; position: relative; }
.spectrum__dot { width: 16px; height: 16px; border-radius: 50%; background: var(--gold-500); margin: 0 auto 18px; box-shadow: 0 0 0 6px rgba(201,161,90,.15); position: relative; z-index: 2; }
.spectrum::before { content: ""; position: absolute; top: 8px; left: 16%; right: 16%; height: 2px; background: linear-gradient(90deg, var(--gold-600), var(--gold-400)); z-index: 1; }
.spectrum__step h4 { font-family: var(--font-sans); font-size: 1.02rem; margin-bottom: 6px; }
.spectrum__step p { font-size: .92rem; margin: 0; }

/* ---------- Compare (reactive vs proactive) ---------- */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.compare__col { border-radius: var(--radius); padding: 34px 30px; }
.compare__col--muted { background: var(--paper-2); border: 1px solid var(--line); }
.compare__col--brand { background: linear-gradient(155deg, var(--navy-800), var(--navy-700)); color: #fff; box-shadow: var(--shadow-md); }
.compare__label { font-family: var(--font-sans); font-weight: 600; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 6px; }
.compare__col--muted .compare__label { color: var(--muted); }
.compare__col--brand .compare__label { color: var(--gold-400); }
.compare__col h3 { margin-bottom: 22px; }
.compare__col--brand h3 { color: #fff; }
.compare__list { list-style: none; display: grid; gap: 14px; }
.compare__list li { position: relative; padding-left: 34px; font-size: .98rem; }
.compare__col--muted .compare__list li { color: var(--slate); }
.compare__col--brand .compare__list li { color: #D5DEEB; }
.compare__list li::before { content: ""; position: absolute; left: 0; top: 0; width: 22px; height: 22px; border-radius: 50%; background-repeat: no-repeat; background-position: center; }
.compare__col--muted .compare__list li::before { background-color: rgba(107,118,136,.14);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='13' height='13' viewBox='0 0 24 24' fill='none' stroke='%236B7688' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E"); }
.compare__col--brand .compare__list li::before { background-color: rgba(216,184,121,.20);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='13' height='13' viewBox='0 0 24 24' fill='none' stroke='%23D8B879' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E"); }

/* ---------- Chips (experience / industries) ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { background: var(--paper-2); border: 1px solid var(--line); color: var(--navy-800); font-family: var(--font-sans); font-weight: 600; font-size: .88rem; padding: 9px 16px; border-radius: 999px; }
.section--paper2 .chip { background: #fff; }
.note-callout { background: var(--paper-2); border-left: 3px solid var(--gold-500); border-radius: 0 10px 10px 0; padding: 18px 22px; margin-top: 24px; }
.note-callout p { margin: 0; font-size: .95rem; color: var(--slate); }
.panel--navy .note-callout { background: rgba(255,255,255,.06); }
.panel--navy .note-callout p { color: #C6D0DF; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .split, .founder, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .split--reverse .split__media { order: 0; }
  .founder__photo { max-width: 300px; }
}
@media (max-width: 820px) {
  .section { padding: 68px 0; }
  .site-header { position: sticky; }
  .nav { position: relative; }
  .nav__toggle { display: flex; }
  .nav__menu {
    position: absolute; top: calc(100% + 1px); left: 0; right: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 14px 24px 24px;
  }
  body.nav-open .nav__menu { display: flex; }
  .nav__menu .nav__links { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__menu .nav__links a { padding: 14px 6px; border-bottom: 1px solid var(--line); font-size: 1.05rem; }
  .nav__menu .nav__links a.is-active::after { display: none; }
  .nav__menu .nav__phone { margin: 18px 6px 0; }
  .nav__menu .btn { margin-top: 18px; width: 100%; justify-content: center; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .grid-2, .grid-3, .grid-4, .stat-grid, .checklist.cols-2, .deliverables, .form-row, .compare, .spectrum { grid-template-columns: 1fr; }
  .spectrum { gap: 28px; }
  .spectrum::before { display: none; }
  .pricing-band { padding: 38px 24px; }
  .form-card { padding: 26px 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero__inner { padding: 76px 0 80px; }
}