/* xbar.io — site styles */
:root {
  --paper: #F3F0E8;
  --paper-2: #EAE5D9;
  --card: #FBFAF6;
  --line: #D9D3C4;
  --ink: #15171C;
  --ink-2: #3E424A;
  --muted: #5A5E66;
  --cobalt: #2B44B8;
  --cobalt-dark: #1C2F85;
  --cobalt-tint: #EEF0FA;
  --periwinkle: #9FB0FF;
  --dark-line: #3A3E47;
  --dark-text: #C9C5BB;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", Menlo, Consolas, monospace;
  --pad-x: 96px;
  --pad-y: 120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.5; }
img, svg { max-width: 100%; }
a { color: var(--cobalt); }
a:hover { color: var(--cobalt-dark); }
:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 3px; border-radius: 4px; }
.dark :focus-visible, .contact :focus-visible { outline-color: var(--periwinkle); }
h1, h2, h3, p { margin: 0; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 8px; }

.wrap { max-width: 1440px; margin: 0 auto; padding: var(--pad-y) var(--pad-x); }
.eyebrow { font-family: var(--mono); font-size: 13px; letter-spacing: 1px; color: var(--cobalt); text-transform: uppercase; }
.dark .eyebrow { color: var(--periwinkle); }
.h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(34px, 4.2vw, 52px); line-height: 1.08; }
.lede { font-size: 17px; line-height: 1.6; color: var(--ink-2); max-width: 440px; }
.dark .lede { color: var(--dark-text); }
.head { display: flex; flex-direction: column; gap: 16px; max-width: 900px; }
.head-split { display: flex; justify-content: space-between; align-items: flex-end; gap: 64px; }
.dark { background: var(--ink); color: var(--paper); }
.tan { background: var(--paper-2); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 28px; border-radius: 999px; font-weight: 500; font-size: 16px; text-decoration: none; border: 1px solid transparent; cursor: pointer; font-family: inherit; }
.btn-primary { background: var(--cobalt); color: #fff; }
.btn-primary:hover { background: var(--cobalt-dark); color: #fff; }
.btn-ink { background: var(--ink); color: var(--paper); }
.btn-ink:hover { background: #000; color: #fff; }
.btn-outline { border-color: var(--ink); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn-sm { min-height: 44px; padding: 0 22px; font-size: 15px; }

/* Logo */
.logo { display: inline-flex; align-items: baseline; text-decoration: none; color: var(--ink); font-family: var(--mono); font-size: 24px; font-weight: 500; letter-spacing: -0.5px; }
.logo:hover { color: var(--ink); }
.logo .x { display: inline-block; border-top: 3px solid var(--cobalt); line-height: 0.85; padding-top: 3px; }
.footer .logo { color: var(--paper); }
.footer .logo .x { border-top-color: var(--periwinkle); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 5; background: rgba(243, 240, 232, 0.94); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-header .bar { max-width: 1440px; margin: 0 auto; padding: 22px var(--pad-x); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: baseline; gap: 16px; }
.brand-sub { font-family: var(--mono); font-size: 12px; color: var(--muted); letter-spacing: 0.5px; }

/* Hero */
.hero { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 64px; align-items: center; padding-top: 104px; padding-bottom: 112px; }
.hero-copy { display: flex; flex-direction: column; gap: 32px; }
.hero h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(44px, 5vw, 72px); line-height: 1.02; letter-spacing: -1.5px; }
.hero h1 em { color: var(--cobalt); }
.hero-sub { font-size: 20px; line-height: 1.55; color: var(--ink-2); max-width: 560px; }
.proof { display: flex; flex-wrap: wrap; gap: 12px 28px; font-family: var(--mono); font-size: 13px; color: var(--muted); font-weight: 600; list-style: none; padding: 0; margin: 0; }
.chart { margin: 0; background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 36px; display: flex; flex-direction: column; gap: 20px; }
.chart figcaption { font-size: 15px; line-height: 1.5; color: var(--ink-2); border-top: 1px solid var(--line); padding-top: 18px; }
.chart svg { display: block; width: 100%; height: auto; }
.curve-specific { stroke-dasharray: 1400; stroke-dashoffset: 1400; animation: draw 1.6s ease-out 0.3s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) { .curve-specific { animation: none; stroke-dashoffset: 0; } }

/* Problems */
.problems .wrap { padding-top: 96px; padding-bottom: 96px; display: flex; flex-direction: column; gap: 56px; }
.problems h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(32px, 3.8vw, 48px); line-height: 1.1; max-width: 760px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.problem { border-top: 1px solid #4A4E57; padding-top: 24px; display: flex; flex-direction: column; gap: 12px; }
.problem .tag { font-family: var(--mono); font-size: 13px; color: var(--periwinkle); }
.problem h3 { font-size: 22px; font-weight: 500; }
.problem p { font-size: 16px; line-height: 1.6; color: var(--dark-text); }

/* Offerings */
.stack { display: flex; flex-direction: column; gap: 56px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 40px; display: flex; flex-direction: column; gap: 14px; }
.card h3 { font-size: 24px; font-weight: 500; }
.card p { font-size: 16px; line-height: 1.6; color: var(--ink-2); }

/* Process */
.steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 20px; list-style: none; padding: 0; margin: 0; }
.step { display: flex; flex-direction: column; gap: 14px; border-top: 2px solid var(--ink); padding-top: 24px; }
.step .num { font-family: var(--serif); font-size: 44px; color: var(--cobalt); line-height: 1; }
.step h3 { font-size: 20px; font-weight: 500; }
.step p { font-size: 15px; line-height: 1.6; color: var(--ink-2); }

/* Comparison */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.compare { width: 100%; min-width: 680px; border-collapse: collapse; font-size: 17px; text-align: left; }
.compare th, .compare td { padding: 24px 32px; vertical-align: top; }
.compare thead th { background: var(--ink); color: var(--paper); font-family: var(--mono); font-size: 13px; letter-spacing: 0.5px; font-weight: 400; text-transform: uppercase; padding-top: 20px; padding-bottom: 20px; }
.compare thead th.ours { background: var(--cobalt); color: #fff; }
.compare tbody tr { border-top: 1px solid var(--line); }
.compare tbody th { font-weight: 500; }
.compare tbody td { color: var(--ink-2); }
.compare tbody td.ours { background: var(--cobalt-tint); color: var(--ink); }

/* Use cases */
.cases { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--dark-line); border: 1px solid var(--dark-line); border-radius: 16px; overflow: hidden; }
.case { background: var(--ink); padding: 36px; display: flex; flex-direction: column; gap: 12px; }
.case .tag { font-family: var(--mono); font-size: 13px; color: var(--periwinkle); text-transform: uppercase; }
.case h3 { font-size: 20px; font-weight: 500; }
.case p { font-size: 15px; line-height: 1.6; color: var(--dark-text); }

/* Parent */
.parent { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 80px; align-items: center; }
.parent-copy { display: flex; flex-direction: column; gap: 20px; }
.parent-copy h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(32px, 3.8vw, 48px); line-height: 1.1; }
.parent-copy p { font-size: 17px; line-height: 1.65; color: var(--ink-2); }
.parent-copy a { font-size: 16px; font-weight: 500; }
.mini-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.mini { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px; display: flex; flex-direction: column; gap: 8px; }
.mini h3 { font-size: 18px; font-weight: 500; }
.mini p { font-size: 15px; line-height: 1.55; color: var(--ink-2); }

/* Pricing */
.tiers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: stretch; }
.tier { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 40px; display: flex; flex-direction: column; gap: 20px; }
.tier .name { font-family: var(--mono); font-size: 13px; color: var(--muted); text-transform: uppercase; }
.tier .price { font-family: var(--serif); font-size: 40px; line-height: 1.1; }
.tier .desc { font-size: 16px; line-height: 1.6; color: var(--ink-2); }
.tier ul { list-style: none; padding: 20px 0 0; margin: 0; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px; font-size: 15px; line-height: 1.5; }
.tier .btn { margin-top: auto; min-height: 48px; }
.tier-featured { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.tier-featured .name { color: var(--periwinkle); }
.tier-featured .desc { color: var(--dark-text); }
.tier-featured ul { border-top-color: #4A4E57; }
.tier-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.badge { font-family: var(--mono); font-size: 12px; background: var(--cobalt); color: #fff; padding: 6px 12px; border-radius: 999px; }

/* FAQ */
.faq { display: grid; grid-template-columns: 400px minmax(0, 1fr); gap: 80px; }
.faq-list { border-bottom: 1px solid var(--line); }
.faq details { border-top: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 28px 40px 28px 0; font-size: 20px; font-weight: 500; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 8px; top: 50%; width: 10px; height: 10px; border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: translateY(-70%) rotate(45deg); transition: transform 0.2s; }
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq details p { padding: 0 40px 28px 0; font-size: 16px; line-height: 1.6; color: var(--ink-2); }

/* Contact */
.contact { background: var(--cobalt); color: #fff; }
.contact .wrap { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 80px; align-items: start; }
.contact-copy { display: flex; flex-direction: column; gap: 24px; }
.contact h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(40px, 4.4vw, 52px); line-height: 1.02; letter-spacing: -1px; }
.contact h2 sup { font-family: var(--mono); font-size: 16px; letter-spacing: 0; vertical-align: super; margin-left: 4px; }
.contact-copy p { font-size: 20px; line-height: 1.55; color: #E3E7FF; max-width: 520px; }
.contact-copy ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 16px; color: #E3E7FF; }
.form { background: #fff; color: var(--ink); border-radius: 20px; padding: 40px; display: flex; flex-direction: column; gap: 20px; }
.form .row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 14px; font-weight: 500; }
.field input, .field select, .field textarea { min-height: 48px; padding: 0 14px; border: 1px solid #8A8E96; border-radius: 10px; font: inherit; font-size: 16px; background: #fff; color: var(--ink); width: 100%; }
.field textarea { padding: 12px 14px; resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--cobalt); outline: 2px solid var(--cobalt); outline-offset: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .note { font-size: 13px; color: var(--muted); }
.form-status { font-size: 15px; line-height: 1.5; border-radius: 10px; padding: 0; }
.form-status.ok { background: #E8F3EC; color: #1D5B33; padding: 14px 16px; }
.form-status.err { background: #FBEAEA; color: #8A1F1F; padding: 14px 16px; }
.form button[disabled] { opacity: 0.6; cursor: progress; }

/* Footer */
.footer { background: var(--ink); color: var(--dark-text); }
.footer .wrap { padding-top: 64px; padding-bottom: 48px; display: flex; flex-direction: column; gap: 40px; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 48px; }
.footer-top p { margin-top: 12px; font-size: 15px; line-height: 1.6; max-width: 360px; }
.footer nav { display: flex; flex-wrap: wrap; gap: 16px 32px; font-size: 15px; }
.footer nav a { color: var(--paper); text-decoration: none; }
.footer nav a:hover { text-decoration: underline; color: #fff; }
.footer .legal { border-top: 1px solid var(--dark-line); padding-top: 24px; font-size: 13px; font-family: var(--mono); }

/* Simple pages (thank-you, 404) */
.simple { min-height: 70vh; display: flex; flex-direction: column; justify-content: center; gap: 24px; max-width: 760px; }
.simple h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(40px, 5vw, 64px); line-height: 1.05; }
.simple p { font-size: 19px; line-height: 1.6; color: var(--ink-2); }

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  :root { --pad-x: 56px; --pad-y: 96px; }
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 40px; }
  .faq { grid-template-columns: 1fr; gap: 32px; }
  .parent { gap: 48px; }
}
@media (max-width: 960px) {
  :root { --pad-x: 32px; --pad-y: 80px; }
  .hero, .parent, .contact .wrap { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding-top: 64px; padding-bottom: 80px; }
  .head-split { flex-direction: column; align-items: flex-start; gap: 20px; }
  .grid-3, .tiers { grid-template-columns: 1fr; }
  .cases { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brand-sub { display: none; }
}
@media (max-width: 640px) {
  :root { --pad-x: 20px; --pad-y: 64px; }
  .site-header .bar { padding-top: 14px; padding-bottom: 14px; }
  .logo { font-size: 21px; }
  .btn-sm { padding: 0 16px; font-size: 14px; }
  .hero h1 { letter-spacing: -0.8px; }
  .hero-sub { font-size: 18px; }
  .hero .btn { width: 100%; }
  .chart { padding: 20px; }
  .grid-2, .cases, .mini-grid, .steps, .form .row { grid-template-columns: 1fr; }
  .card, .tier, .form { padding: 28px; }
  .case { padding: 28px; }
  .compare th, .compare td { padding: 18px 20px; }
  .faq summary { font-size: 18px; }
  .contact-copy p { font-size: 18px; }
  .footer-top { flex-direction: column; }
}