/* ==========================================================================
   Angeline Consulting — Stylesheet
   Design language: precision drafting / engineering blueprint.
   Rationale: management consulting is structural work — organizations get
   redrawn the way an engineer redraws a system. Grounded further by the
   Houston/Stafford, TX engineering & energy-corridor backdrop.
   Palette: blueprint teal-navy, warm copper, slate, vellum paper.
   Type: Spectral (display serif) + IBM Plex Sans (body/UI) + IBM Plex Mono
   (measurements, labels, annotations — the "drafting notation" voice).
   ========================================================================== */

:root {
  --blueprint: #17324d;      /* deep teal-navy — primary dark */
  --blueprint-2: #21486b;    /* lighter panel tone */
  --copper: #c1863f;         /* warm copper — primary accent */
  --copper-dark: #9c6a2e;
  --slate: #56707a;          /* secondary accent */
  --slate-light: #86a0a8;
  --vellum: #f1efe6;         /* tracing-paper background */
  --paper: #faf9f4;          /* card surface, lighter than vellum */
  --graphite: #22262b;       /* body text */
  --graphite-soft: #565b52;  /* muted text */
  --rule: rgba(23, 50, 77, 0.16);
  --rule-light: rgba(255, 255, 255, 0.2);

  --font-display: "Spectral", "Iowan Old Style", Georgia, serif;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;

  --container: 1180px;
  --radius: 3px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--graphite);
  background: var(--paper);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--blueprint);
  line-height: 1.16;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.3rem, 4.3vw, 3.6rem); }
h2 { font-size: clamp(1.75rem, 2.9vw, 2.4rem); }
h3 { font-size: 1.3rem; }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1.1em; }
a { color: var(--copper); text-decoration: none; }
a:hover { color: var(--copper-dark); }
img { max-width: 100%; display: block; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 56px 0; }
@media (max-width: 768px) {
  .section { padding: 62px 0; }
  .section-sm { padding: 40px 0; }
}

/* Drafting annotation label — replaces a generic "eyebrow" with a
   monospace measurement-callout feel */
.callout {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 18px;
}
.callout::before { content: "\2316"; font-size: 0.9rem; }
.callout.on-dark { color: #e8b877; }

/* ==========================================================================
   Signature divider — a double drafting rule (thin + thick), like the
   border convention on an engineering drawing sheet.
   ========================================================================== */
.plan-rule {
  height: 6px;
  border-top: 1px solid var(--rule);
  border-bottom: 3px solid var(--rule);
}
.plan-rule.on-dark {
  border-top-color: var(--rule-light);
  border-bottom-color: var(--rule-light);
}

/* Corner registration marks — small crosshair ticks, echoing the
   alignment marks on a drafting sheet. Used sparingly on key panels. */
.reg-mark { position: relative; }
.reg-mark::before, .reg-mark::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--copper);
  opacity: 0.65;
}
.reg-mark::before { top: 14px; left: 14px; border-right: none; border-bottom: none; }
.reg-mark::after { bottom: 14px; right: 14px; border-left: none; border-top: none; }

/* ==========================================================================
   Topbar
   ========================================================================== */
.topbar { background: var(--blueprint); color: #dfe6e6; font-size: 0.85rem; }
.topbar .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 10px; padding-bottom: 10px; flex-wrap: wrap; gap: 8px;
}
.topbar-contacts { display: flex; gap: 24px; flex-wrap: wrap; }
.topbar-contacts a { color: #dfe6e6; }
.topbar-contacts a:hover { color: #fff; }
.topbar-contacts i { color: #e8b877; margin-right: 8px; }
.topbar-social a { color: #dfe6e6; margin-left: 14px; font-size: 0.95rem; }
.topbar-social a:hover { color: #e8b877; }

/* ==========================================================================
   Navbar
   ========================================================================== */
.site-nav { background: var(--paper); border-bottom: 1px solid var(--rule); position: sticky; top: 0; z-index: 999; }
.site-nav .container { display: flex; align-items: center; justify-content: space-between; padding-top: 16px; padding-bottom: 16px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--blueprint); }
.brand:hover { color: var(--blueprint); }
.brand-mark { width: 40px; height: 40px; flex-shrink: 0; }
.brand-word { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; line-height: 1.1; }
.brand-word span {
  display: block; font-family: var(--font-mono); font-size: 0.6rem; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--copper); margin-top: 3px;
}

.nav-links { display: flex; align-items: center; gap: 34px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--graphite); font-weight: 500; font-size: 0.92rem; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav-links a:hover, .nav-links a.active { color: var(--copper); border-bottom-color: var(--copper); }

.nav-cta {
  display: inline-flex; align-items: center; gap: 8px; background: var(--blueprint); color: #fff;
  padding: 11px 22px; border-radius: var(--radius); font-weight: 600; font-size: 0.9rem; white-space: nowrap;
}
.nav-cta:hover { background: var(--blueprint-2); color: #fff; }

.nav-toggle { display: none; background: none; border: 1px solid var(--rule); border-radius: var(--radius); padding: 8px 10px; color: var(--blueprint); font-size: 1.1rem; }

@media (max-width: 960px) {
  .nav-links { display: none; }
  .nav-cta.desktop-only { display: none; }
  .nav-toggle { display: inline-flex; }
  .site-nav.open .nav-links {
    display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--paper); border-bottom: 1px solid var(--rule); padding: 12px 24px 20px;
  }
  .site-nav.open .nav-links a { width: 100%; padding: 10px 0; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { position: relative; background: var(--blueprint); color: #eef1ee; overflow: hidden; padding: 108px 0 96px; }
.hero::before {
  /* fine blueprint grid texture */
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--rule-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule-light) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.35;
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: end; }
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero { padding: 80px 0 64px; }
}
.hero h1 { color: #fbfaf6; max-width: 16ch; }
.hero-lede { font-size: 1.08rem; color: #c9d3d1; max-width: 46ch; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 0.92rem; padding: 13px 26px; border-radius: var(--radius); border: 1px solid transparent; cursor: pointer; }
.btn-copper { background: var(--copper); color: #fff; }
.btn-copper:hover { background: var(--copper-dark); color: #fff; }
.btn-outline-light { border-color: rgba(255,255,255,0.4); color: #eef1ee; background: transparent; }
.btn-outline-light:hover { border-color: #fff; color: #fff; }
.btn-outline-ink { border-color: var(--blueprint); color: var(--blueprint); background: transparent; }
.btn-outline-ink:hover { background: var(--blueprint); color: #fff; }

/* Title block — the site's signature device, styled after the title block
   in the corner of an engineering drawing sheet. */
.title-block { background: var(--paper); color: var(--graphite); border-radius: var(--radius); padding: 0; box-shadow: 0 24px 48px rgba(0,0,0,0.28); }
.title-block .tb-head {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: #fff; background: var(--copper); padding: 10px 20px;
}
.title-block .tb-body { padding: 22px 24px 8px; }
.tb-row { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-top: 1px dashed var(--rule); font-size: 0.9rem; }
.tb-row:first-of-type { border-top: none; }
.tb-row span:first-child { font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--graphite-soft); }
.tb-row strong { color: var(--blueprint); font-weight: 600; text-align: right; }

/* ==========================================================================
   Who-we-serve strip
   ========================================================================== */
.serve-strip { background: transparent; }
.serve-strip .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 0; }
.serve-item { text-align: center; }
@media (max-width: 768px) { .serve-strip .container { grid-template-columns: repeat(2, 1fr); } }

/* ==========================================================================
   Section headers
   ========================================================================== */
.section-head { max-width: 640px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--graphite-soft); font-size: 1.02rem; }

/* ==========================================================================
   Cards — services
   ========================================================================== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card-service {
  background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 34px 28px; transition: border-color 0.2s ease, transform 0.2s ease;
}
.card-service:hover { border-color: var(--copper); transform: translateY(-4px); }
.card-service .icon-mark { margin-bottom: 20px; }
.card-service h3 { margin-bottom: 10px; }
.card-service p { color: var(--graphite-soft); font-size: 0.95rem; margin-bottom: 0; }
.card-service .num-tag { font-family: var(--font-mono); font-size: 0.8rem; color: var(--slate); letter-spacing: 0.08em; display: block; margin-bottom: 10px; }

.icon-mark svg { width: 42px; height: 42px; }
.icon-mark.circle { width: 64px; height: 64px; border-radius: 50%; background: var(--vellum); display: flex; align-items: center; justify-content: center; }
.icon-mark.circle svg { width: 30px; height: 30px; }

/* ==========================================================================
   Split blocks
   ========================================================================== */
.split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: center; }
.split.reverse { grid-template-columns: 1.1fr 0.9fr; }
.split.reverse .split-visual { order: 2; }
@media (max-width: 860px) {
  .split, .split.reverse { grid-template-columns: 1fr; gap: 36px; }
  .split.reverse .split-visual { order: 0; }
}

.split-visual {
  background: var(--blueprint); border-radius: var(--radius); padding: 40px; position: relative;
  overflow: hidden; min-height: 340px; display: flex; align-items: flex-end;
}
.split-visual::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(var(--rule-light) 1px, transparent 1px), linear-gradient(90deg, var(--rule-light) 1px, transparent 1px);
  background-size: 30px 30px; opacity: 0.3;
}
.split-visual .diagram { position: absolute; inset: 0; opacity: 0.55; }
.split-visual .visual-label { position: relative; z-index: 1; color: #eef1ee; }
.split-visual .visual-label .callout { color: #e8b877; }

.checklist { list-style: none; margin: 24px 0; padding: 0; }
.checklist li { display: flex; gap: 14px; padding: 10px 0; border-top: 1px dashed var(--rule); font-size: 0.96rem; }
.checklist li:first-child { border-top: none; }
.checklist svg { flex-shrink: 0; margin-top: 3px; width: 18px; height: 18px; color: var(--copper); }

/* ==========================================================================
   Process strip
   ========================================================================== */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.process-step { padding: 0 26px 0 0; position: relative; }
.process-step:not(:last-child)::after { content: ""; position: absolute; top: 22px; right: 0; width: 26px; height: 1px; background: var(--rule); display: none; }
@media (min-width: 769px) { .process-step:not(:last-child)::after { display: block; } }
.process-step .step-num { font-family: var(--font-mono); color: var(--copper); font-size: 1.3rem; display: block; margin-bottom: 10px; }
@media (max-width: 768px) { .process { grid-template-columns: 1fr; gap: 28px; } }

/* ==========================================================================
   Founder quote block
   ========================================================================== */
.quote-block { background: var(--blueprint); color: #eef1ee; border-radius: var(--radius); padding: 56px; position: relative; }
.quote-block .quote-mark { font-family: var(--font-display); font-size: 4rem; color: #e8b877; line-height: 1; margin-bottom: 12px; display: block; }
.quote-block p.quote { font-family: var(--font-display); font-size: 1.35rem; font-weight: 500; color: #fff; max-width: 62ch; }
.quote-attr { display: flex; align-items: center; gap: 14px; margin-top: 24px; }
.quote-attr .swatch { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--copper), var(--slate)); flex-shrink: 0; }
.quote-attr strong { display: block; color: #fff; font-size: 0.95rem; }
.quote-attr span { color: #b7c2c0; font-size: 0.85rem; }
@media (max-width: 768px) { .quote-block { padding: 36px 26px; } }

/* ==========================================================================
   CTA band
   ========================================================================== */
.cta-band { background: var(--copper); color: #fff; border-radius: var(--radius); }
.cta-band .container { padding: 56px 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin-bottom: 6px; }
.cta-band p { color: rgba(255,255,255,0.9); margin: 0; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--blueprint); color: #c9d3d1; padding-top: 72px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 56px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { color: #fff; font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 20px; }
.site-footer .brand-word { color: #fff; }
.site-footer p { color: #aebcb9; font-size: 0.92rem; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #c9d3d1; font-size: 0.92rem; }
.footer-links a:hover { color: #e8b877; }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 12px; font-size: 0.92rem; }
.footer-contact i { color: #e8b877; margin-top: 3px; }

.footer-social { display: flex; gap: 10px; margin-top: 18px; }
.footer-social a { width: 36px; height: 36px; border: 1px solid var(--rule-light); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #eef1ee; font-size: 0.85rem; }
.footer-social a:hover { background: #e8b877; border-color: #e8b877; color: var(--blueprint); }

.newsletter-form { display: flex; margin-top: 8px; border: 1px solid var(--rule-light); border-radius: var(--radius); overflow: hidden; }
.newsletter-form input { flex: 1; border: none; background: transparent; color: #fff; padding: 12px 14px; font-family: var(--font-body); font-size: 0.9rem; }
.newsletter-form input::placeholder { color: #7f918e; }
.newsletter-form input:focus { outline: none; }
.newsletter-form button { border: none; background: #e8b877; color: var(--blueprint); font-weight: 700; font-size: 0.85rem; padding: 0 18px; cursor: pointer; }

.copyright { border-top: 1px solid var(--rule-light); padding: 22px 0; font-size: 0.85rem; color: #90a19d; }
.copyright .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.copyright a { color: #c9d3d1; }
.copyright a:hover { color: #e8b877; }

/* ==========================================================================
   Page header
   ========================================================================== */
.page-header { background: var(--blueprint); color: #eef1ee; padding: 64px 0 56px; position: relative; overflow: hidden; }
.page-header::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(var(--rule-light) 1px, transparent 1px), linear-gradient(90deg, var(--rule-light) 1px, transparent 1px);
  background-size: 30px 30px; opacity: 0.3;
}
.page-header .container { position: relative; z-index: 1; }
.breadcrumb-trail { font-family: var(--font-mono); font-size: 0.8rem; color: #a9b7b4; margin-top: 10px; }
.breadcrumb-trail a { color: #a9b7b4; }
.breadcrumb-trail a:hover { color: #e8b877; }
.breadcrumb-trail .sep { margin: 0 8px; opacity: 0.5; }

/* ==========================================================================
   Legal pages
   ========================================================================== */
.legal-content h2 { font-size: 1.3rem; margin-top: 2.2em; padding-top: 0.4em; border-top: 1px solid var(--rule); }
.legal-content h2:first-child { margin-top: 0; border-top: none; padding-top: 0; }
.legal-content p, .legal-content li { color: var(--graphite-soft); font-size: 0.98rem; }
.legal-content strong { color: var(--blueprint); }
.legal-meta { display: inline-block; font-family: var(--font-mono); font-size: 0.8rem; color: var(--graphite-soft); background: var(--vellum); border: 1px solid var(--rule); border-radius: var(--radius); padding: 8px 16px; margin-bottom: 40px; }
.legal-toc { background: var(--vellum); border: 1px solid var(--rule); border-radius: var(--radius); padding: 24px 28px; margin-bottom: 44px; }
.legal-toc h4 { margin-bottom: 12px; font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--copper); }
.legal-toc ol { margin: 0; padding-left: 20px; columns: 2; gap: 24px; }
.legal-toc li { font-size: 0.92rem; margin-bottom: 8px; }
.legal-toc a { color: var(--graphite); }
.legal-toc a:hover { color: var(--copper); }
@media (max-width: 640px) { .legal-toc ol { columns: 1; } }
.legal-layout { display: grid; grid-template-columns: 1fr; max-width: 780px; margin: 0 auto; }

/* ==========================================================================
   FAQ / support
   ========================================================================== */
.faq-item { border-bottom: 1px solid var(--rule); padding: 22px 0; }
.faq-item summary {
  font-family: var(--font-display); font-size: 1.06rem; color: var(--blueprint); cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .toggle-icon {
  flex-shrink: 0; width: 26px; height: 26px; border: 1px solid var(--rule); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-family: var(--font-body); color: var(--copper);
}
.faq-item[open] summary .toggle-icon::before { content: "\2212"; }
.faq-item:not([open]) summary .toggle-icon::before { content: "\002B"; }
.faq-item p { margin-top: 14px; color: var(--graphite-soft); }

.support-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 860px) { .support-tiles { grid-template-columns: 1fr; } }
.support-tile { background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius); padding: 30px 26px; text-align: left; }
.support-tile .icon-mark { margin-bottom: 16px; }
.support-tile a.tile-link { font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 6px; margin-top: 6px; }

/* ==========================================================================
   Contact page
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 48px; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-info-card { background: var(--blueprint); color: #eef1ee; border-radius: var(--radius); padding: 40px; }
.contact-info-card .callout { color: #e8b877; }
.contact-info-card ul { list-style: none; padding: 0; margin: 24px 0 0; }
.contact-info-card li { display: flex; gap: 14px; padding: 14px 0; border-top: 1px dashed var(--rule-light); }
.contact-info-card li:first-child { border-top: none; }
.contact-info-card i { color: #e8b877; margin-top: 3px; }
.contact-info-card strong { display: block; color: #fff; font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; }

.map-frame { border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; margin-top: 24px; }
.map-frame iframe { width: 100%; height: 260px; border: 0; display: block; }

.form-card { background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius); padding: 40px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--blueprint); margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--rule); border-radius: var(--radius); padding: 12px 14px;
  font-family: var(--font-body); font-size: 0.95rem; background: #fff; color: var(--graphite);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--copper); outline-offset: 1px; border-color: var(--copper); }
.field textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.85rem; color: var(--graphite-soft); margin-top: 8px; }

/* ==========================================================================
   Back to top
   ========================================================================== */
.back-to-top {
  position: fixed; bottom: 26px; right: 26px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--copper); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px rgba(0,0,0,0.25); opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease; z-index: 998;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background: var(--copper-dark); color: #fff; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card-service, .back-to-top { transition: none; }
}
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--copper); outline-offset: 2px; }

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }