/* =========================================================
   CostCompare — public site styles
   Zero dependencies. System font stacks only (fast + offline-safe).
   Design signature: the "cost gauge" — a low/avg/high ruler that
   appears everywhere a price does, like a price tag on a ledger.
   ========================================================= */

:root {
  /* Color */
  --ink: #16233D;
  --ink-soft: #2C3B58;
  --paper: #FAFAF8;
  --paper-alt: #F1EFE9;
  --slate: #5B6B82;
  --slate-light: #93A1B4;
  --line: #DFE3E8;
  --amber: #C9860F;
  --amber-soft: #F4E3C2;
  --low: #2F7A5C;
  --high: #B5482A;
  --white: #FFFFFF;

  /* Type */
  --font-display: Georgia, 'Iowan Old Style', 'Palatino Linotype', 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, 'Cascadia Mono', 'SFMono-Regular', Consolas, 'Courier New', monospace;

  /* Layout */
  --max-w: 1160px;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(22,35,61,0.06), 0 4px 16px rgba(22,35,61,0.05);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration-color: var(--slate-light); }
a:hover { color: var(--amber); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.2; margin: 0 0 .5em; color: var(--ink); }
h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; color: var(--ink-soft); }
.eyebrow { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--amber); font-weight: 600; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250,250,248,.92);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; gap: 16px; }
.logo { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; color: var(--ink); text-decoration: none; white-space: nowrap; }
.logo span { color: var(--amber); }

.main-nav { display: none; gap: 22px; align-items: center; }
.main-nav a { font-size: .93rem; font-weight: 500; text-decoration: none; color: var(--ink-soft); }
.main-nav a:hover { color: var(--amber); }

.nav-toggle { background: none; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 1.1rem; cursor: pointer; }

.header-search { position: relative; flex: 1; max-width: 340px; display: none; }
.header-search input {
  width: 100%; padding: 9px 14px; border-radius: 999px; border: 1px solid var(--line);
  font-size: .9rem; background: var(--white);
}

@media (min-width: 860px) {
  .main-nav { display: flex; }
  .nav-toggle { display: none; }
  .header-search { display: block; }
}

.mobile-menu { display: none; border-top: 1px solid var(--line); background: var(--paper); }
.mobile-menu.open { display: block; }
.mobile-menu .container { padding: 14px 20px 20px; display: flex; flex-direction: column; gap: 12px; }
.mobile-menu a { text-decoration: none; color: var(--ink); font-weight: 500; }
.mobile-menu input { width: 100%; padding: 10px 14px; border-radius: 8px; border: 1px solid var(--line); }

/* ---------- Hero ---------- */
.hero { padding: 56px 0 40px; border-bottom: 1px solid var(--line); }
.hero .eyebrow { display: block; margin-bottom: 10px; }
.hero p.lead { font-size: 1.08rem; max-width: 620px; }
.hero-search { position: relative; max-width: 560px; margin-top: 22px; }
.hero-search input {
  width: 100%; padding: 16px 20px; font-size: 1rem; border-radius: 12px;
  border: 1px solid var(--line); box-shadow: var(--shadow); background: var(--white);
}
.hero-search-results {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; background: var(--white);
  border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); z-index: 40;
  max-height: 360px; overflow-y: auto; display: none;
}
.hero-search-results.open { display: block; }
.hero-search-results a { display: block; padding: 10px 16px; text-decoration: none; border-bottom: 1px solid var(--line); font-size: .92rem; }
.hero-search-results a:last-child { border-bottom: none; }
.hero-search-results a small { display: block; color: var(--slate); font-family: var(--font-mono); font-size: .75rem; }
.hero-search-results .empty { padding: 14px 16px; color: var(--slate); font-size: .88rem; }

/* ---------- Cost gauge (signature element) ---------- */
.cost-gauge { margin: 18px 0; }
.cost-gauge .figures { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: .82rem; color: var(--slate); margin-bottom: 6px; }
.cost-gauge .figures strong { display: block; font-family: var(--font-display); font-size: 1.05rem; color: var(--ink); }
.cost-gauge .figures .avg strong { color: var(--amber); font-size: 1.3rem; }
.cost-gauge .track { position: relative; height: 8px; border-radius: 999px; background: linear-gradient(90deg, var(--low), var(--amber) 50%, var(--high)); }
.cost-gauge .track .pin { position: absolute; top: -5px; width: 3px; height: 18px; background: var(--ink); border-radius: 2px; left: 50%; }
.cost-gauge .caption { font-size: .78rem; color: var(--slate); margin-top: 6px; }

/* ---------- Cards / grid ---------- */
.section { padding: 44px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.section-head a.view-all { font-size: .85rem; font-weight: 600; text-decoration: none; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(1, 1fr); }
@media (min-width: 620px) { .grid.cols-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 860px) { .grid.cols-3 { grid-template-columns: repeat(3, 1fr); } .grid.cols-4 { grid-template-columns: repeat(4, 1fr); } }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; transition: box-shadow .15s ease, transform .15s ease;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card a.card-title { text-decoration: none; font-weight: 600; font-family: var(--font-display); font-size: 1.08rem; }
.card p { font-size: .9rem; margin: 8px 0; }
.card .price-tag { font-family: var(--font-mono); font-weight: 600; color: var(--amber); font-size: .95rem; }

.pill { display: inline-block; font-size: .72rem; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .06em; background: var(--paper-alt); color: var(--slate); padding: 3px 9px; border-radius: 999px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 11px 20px; border-radius: 8px; font-weight: 600; font-size: .92rem;
  text-decoration: none; cursor: pointer; border: 1px solid transparent;
}
.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: var(--ink-soft); color: var(--white); }
.btn-outline { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-outline:hover { border-color: var(--amber); color: var(--amber); }
.btn-block { display: block; width: 100%; text-align: center; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { padding: 12px 0; }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; font-size: .8rem; color: var(--slate); }
.breadcrumbs li:not(:last-child)::after { content: '/'; margin-left: 6px; color: var(--slate-light); }
.breadcrumbs a { text-decoration: none; color: var(--slate); }

/* ---------- Content layout (service / blog pages) ---------- */
.content-layout { display: grid; gap: 32px; grid-template-columns: 1fr; }
@media (min-width: 960px) { .content-layout { grid-template-columns: 2.1fr 1fr; } }

.prose h2 { margin-top: 1.6em; }
.prose h3 { margin-top: 1.2em; }
.prose ul, .prose ol { color: var(--ink-soft); padding-left: 1.3em; }
.prose li { margin-bottom: .4em; }

.stat-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin: 20px 0; }
.stat-box { background: var(--paper-alt); border-radius: 8px; padding: 14px 10px; text-align: center; }
.stat-box .label { font-family: var(--font-mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; color: var(--slate); display:block; margin-bottom: 4px; }
.stat-box .value { font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; }
.stat-box.avg { background: var(--amber-soft); }

.pros-cons { display: grid; grid-template-columns: 1fr; gap: 14px; margin: 20px 0; }
@media (min-width: 620px) { .pros-cons { grid-template-columns: 1fr 1fr; } }
.pros-cons .box { border-radius: 8px; padding: 16px; border: 1px solid var(--line); }
.pros-cons .box.pros { border-left: 4px solid var(--low); }
.pros-cons .box.cons { border-left: 4px solid var(--high); }
.pros-cons ul { margin: 0; padding-left: 1.1em; }

/* ---------- FAQ accordion (native <details>, zero JS) ---------- */
.faq-list details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq-list summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: '+'; font-family: var(--font-mono); color: var(--amber); font-size: 1.2rem; flex-shrink: 0; }
.faq-list details[open] summary::after { content: '−'; }
.faq-list .answer { padding-top: 10px; color: var(--ink-soft); font-size: .94rem; }

/* ---------- Sidebar ---------- */
.sidebar .box { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; }
.sidebar .box h3 { font-size: 1rem; }
.sidebar ul { list-style: none; padding: 0; margin: 0; }
.sidebar li { padding: 7px 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
.sidebar li:last-child { border-bottom: none; }
.sidebar li a { text-decoration: none; }

.ad-slot { background: var(--paper-alt); border: 1px dashed var(--line); border-radius: 8px; padding: 20px; text-align: center; font-size: .78rem; color: var(--slate); font-family: var(--font-mono); }

/* ---------- Lead form ---------- */
.lead-form { background: var(--ink); color: var(--white); border-radius: var(--radius); padding: 24px; }
.lead-form h3 { color: var(--white); }
.lead-form p { color: #C7D0DE; font-size: .88rem; }
.lead-form label { display: block; font-size: .82rem; margin-bottom: 4px; color: #C7D0DE; }
.lead-form input, .lead-form textarea {
  width: 100%; padding: 10px 12px; border-radius: 7px; border: 1px solid #33456A; margin-bottom: 12px;
  background: #1F2E4C; color: var(--white); font-family: var(--font-body); font-size: .9rem;
}
.lead-form input::placeholder, .lead-form textarea::placeholder { color: #7A88A3; }
.lead-form .btn-primary { background: var(--amber); color: var(--ink); width: 100%; }
.form-note { font-size: .74rem; color: var(--slate-light); margin-top: 8px; }
.form-success { background: var(--low); color: var(--white); padding: 14px; border-radius: 8px; font-size: .9rem; }

/* ---------- Table (comparison) ---------- */
.compare-table { width: 100%; border-collapse: collapse; font-size: .9rem; margin: 20px 0; }
.compare-table th, .compare-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
.compare-table th { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: .04em; font-size: .72rem; color: var(--slate); }
.compare-table tr:hover td { background: var(--paper-alt); }

/* ---------- Filters ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.filter-bar select, .filter-bar input { padding: 9px 12px; border-radius: 8px; border: 1px solid var(--line); font-size: .88rem; background: var(--white); }

/* ---------- Calculator ---------- */
.calculator { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.calculator .field { margin-bottom: 16px; }
.calculator label { display: block; font-weight: 600; font-size: .88rem; margin-bottom: 6px; }
.calculator input[type=range] { width: 100%; }
.calculator select, .calculator input[type=number] { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); }
.calculator .result { background: var(--paper-alt); border-radius: 10px; padding: 20px; text-align: center; margin-top: 18px; }
.calculator .result .amount { font-family: var(--font-display); font-size: 2.4rem; font-weight: 700; color: var(--amber); }
.calculator .result .range { font-family: var(--font-mono); font-size: .85rem; color: var(--slate); }

/* ---------- Pagination ---------- */
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 30px; flex-wrap: wrap; }
.pagination a, .pagination span { padding: 8px 13px; border-radius: 7px; border: 1px solid var(--line); text-decoration: none; font-size: .88rem; color: var(--ink); }
.pagination .current { background: var(--ink); color: var(--white); border-color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #B9C3D6; padding: 48px 0 24px; margin-top: 60px; }
.site-footer h4 { color: var(--white); font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; font-family: var(--font-mono); font-weight: 600; }
.footer-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 28px; }
@media (min-width: 720px) { .footer-grid { grid-template-columns: repeat(4,1fr); } }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; font-size: .87rem; }
.footer-grid a { color: #B9C3D6; text-decoration: none; }
.footer-grid a:hover { color: var(--amber); }
.footer-bottom { border-top: 1px solid #2B3A58; margin-top: 32px; padding-top: 18px; font-size: .78rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.muted { color: var(--slate); }
.badge-low { color: var(--low); font-weight: 600; }
.badge-high { color: var(--high); font-weight: 600; }