/* AI Receptionist Report design system
   Identity: modern editorial-authority. Warm, credible, built for the trades.
   Ink + warm paper + one confident amber accent. Not corporate blue. */

:root {
  /* color */
  --ink: #17191f;
  --ink-2: #2c2f38;
  --slate: #565c6b;
  --line: #e4ded3;
  --paper: #f7f4ee;
  --paper-2: #efeae0;
  --card: #ffffff;
  --amber: #e2611c;
  --amber-ink: #b84c11;
  --amber-wash: #fbe9dc;
  --green: #12795a;
  --green-wash: #dcefe7;
  --white: #ffffff;

  /* type */
  --display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* scale */
  --wrap: 1120px;
  --gap: clamp(1rem, 2.5vw, 2rem);
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 1px 2px rgba(23,25,31,.06), 0 12px 30px -18px rgba(23,25,31,.28);
  --shadow-soft: 0 1px 2px rgba(23,25,31,.05), 0 6px 18px -12px rgba(23,25,31,.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--amber-ink); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { font-family: var(--display); font-weight: 600; line-height: 1.12; letter-spacing: -0.02em; color: var(--ink); margin: 0 0 .5em; }
h1 { font-size: clamp(2.3rem, 5.4vw, 3.7rem); }
h2 { font-size: clamp(1.75rem, 3.6vw, 2.5rem); }
h3 { font-size: 1.28rem; letter-spacing: -0.01em; }
p { margin: 0 0 1rem; }
.lead { font-size: clamp(1.08rem, 1.7vw, 1.3rem); color: var(--ink-2); line-height: 1.55; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2rem); }
section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.eyebrow { font-family: var(--display); text-transform: uppercase; letter-spacing: .16em; font-size: .74rem; font-weight: 600; color: var(--amber-ink); margin: 0 0 .9rem; }
.muted { color: var(--slate); }
.center { text-align: center; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--display); font-weight: 600; font-size: .98rem; letter-spacing: -0.01em; padding: .8rem 1.35rem; border-radius: 999px; border: 1.5px solid transparent; cursor: pointer; transition: transform .12s ease, box-shadow .2s ease, background .2s ease; text-decoration: none; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--amber); color: #fff; box-shadow: 0 8px 20px -10px rgba(226,97,28,.7); }
.btn-primary:hover { background: var(--amber-ink); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn-lg { padding: .95rem 1.7rem; font-size: 1.05rem; }

/* header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(247,244,238,.86); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .75rem; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-family: var(--display); font-weight: 700; letter-spacing: -0.02em; color: var(--ink); font-size: 1.12rem; }
.brand:hover { text-decoration: none; }
.brand .mark { width: 34px; height: 34px; border-radius: 9px; background: var(--ink); display: grid; place-items: center; flex: none; }
.brand .mark svg { width: 20px; height: 20px; }
.brand small { display: block; font-family: var(--body); font-weight: 500; font-size: .66rem; letter-spacing: .04em; text-transform: uppercase; color: var(--slate); margin-top: 1px; }
.nav-links { display: flex; align-items: center; gap: 1.4rem; }
.nav-links a { font-family: var(--display); font-weight: 500; font-size: .95rem; color: var(--ink-2); }
.nav-links a:hover { color: var(--amber-ink); text-decoration: none; }
.nav-cta { display: flex; align-items: center; gap: .8rem; }
.menu-btn { display: none; background: none; border: 1.5px solid var(--line); border-radius: 10px; width: 42px; height: 40px; cursor: pointer; }

/* hero */
.hero { padding-top: clamp(2.5rem, 5vw, 4rem); background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
.badge { display: inline-flex; align-items: center; gap: .5rem; background: var(--amber-wash); color: var(--amber-ink); font-family: var(--display); font-weight: 600; font-size: .8rem; padding: .35rem .8rem; border-radius: 999px; margin-bottom: 1.1rem; }
.hero h1 { margin-bottom: .6rem; }
.hero .lead { max-width: 34ch; }
.hero-cta { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 1.6rem; }
.hero-note { margin-top: 1.1rem; font-size: .9rem; color: var(--slate); display: flex; align-items: center; gap: .5rem; }

/* hero card (the "answered call" visual) */
.callcard { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 1.2rem; }
.callcard .row { display: flex; align-items: center; gap: .75rem; padding: .7rem .3rem; border-bottom: 1px dashed var(--line); }
.callcard .row:last-child { border-bottom: 0; }
.dot { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; flex: none; font-family: var(--display); font-weight: 700; }
.dot.live { background: var(--green-wash); color: var(--green); }
.dot.amber { background: var(--amber-wash); color: var(--amber-ink); }
.callcard .row b { font-family: var(--display); }
.callcard .row span { font-size: .88rem; color: var(--slate); }
.callcard .tag { margin-left: auto; font-family: var(--display); font-weight: 600; font-size: .72rem; padding: .2rem .6rem; border-radius: 999px; background: var(--green-wash); color: var(--green); }

/* trust strip */
.strip { background: var(--ink); color: #ded9cf; }
.strip .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 1.1rem; }
.strip b { color: #fff; font-family: var(--display); }
.strip .item { display: flex; align-items: center; gap: .55rem; font-size: .92rem; }
.strip svg { width: 18px; height: 18px; color: var(--amber); flex: none; }

/* generic cards grid */
.grid { display: grid; gap: 1.1rem; }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.35rem; box-shadow: var(--shadow-soft); transition: transform .14s ease, box-shadow .2s ease, border-color .2s ease; }
a.card:hover { text-decoration: none; transform: translateY(-3px); box-shadow: var(--shadow); border-color: #d8d0c1; }
.card h3 { margin-bottom: .35rem; }
.card p { font-size: .96rem; color: var(--ink-2); margin: 0; }
.card .arrow { display: inline-flex; margin-top: .8rem; font-family: var(--display); font-weight: 600; font-size: .9rem; color: var(--amber-ink); }

/* trade chips */
.trades { display: flex; flex-wrap: wrap; gap: .65rem; }
.chip { display: inline-flex; align-items: center; gap: .5rem; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: .55rem 1rem; font-family: var(--display); font-weight: 500; font-size: .95rem; color: var(--ink); box-shadow: var(--shadow-soft); }
.chip:hover { text-decoration: none; border-color: var(--amber); color: var(--amber-ink); }
.chip .k { color: var(--amber); }

/* steps */
.steps { counter-reset: step; display: grid; gap: 1.1rem; grid-template-columns: repeat(4, 1fr); }
.step { position: relative; padding-top: .4rem; }
.step .n { font-family: var(--display); font-weight: 700; font-size: .9rem; width: 34px; height: 34px; border-radius: 10px; background: var(--ink); color: #fff; display: grid; place-items: center; margin-bottom: .7rem; }
.step h3 { font-size: 1.08rem; }
.step p { font-size: .94rem; color: var(--ink-2); margin: 0; }

/* callout / panel */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: clamp(1.4rem, 3vw, 2.4rem); }
.panel.dark { background: var(--ink); color: #e9e4d9; border: 0; }
.panel.dark h2, .panel.dark h3 { color: #fff; }
.panel.amber { background: linear-gradient(135deg, #f4a35f 0%, var(--amber) 100%); color: #fff; border: 0; }
.panel.amber h2 { color: #fff; }

/* FAQ */
.faq { display: grid; gap: .6rem; max-width: 820px; margin-inline: auto; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: .3rem 1.1rem; box-shadow: var(--shadow-soft); }
.faq summary { cursor: pointer; font-family: var(--display); font-weight: 600; font-size: 1.05rem; padding: .85rem 0; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--amber); font-weight: 400; }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { color: var(--ink-2); font-size: .98rem; padding-bottom: .9rem; margin: 0; }

/* lead band */
.leadband { background: var(--ink); color: #fff; border-radius: var(--radius-lg); padding: clamp(1.8rem, 4vw, 3rem); text-align: center; }
.leadband h2 { color: #fff; }
.leadband p { color: #cfcabf; max-width: 52ch; margin-inline: auto; }
.leadband .btn-primary { margin-top: 1.3rem; }

/* footer */
.site-footer { background: var(--ink); color: #b7b3a8; padding-block: 3rem 2rem; margin-top: 1rem; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
.site-footer h4 { color: #fff; font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; margin-bottom: .9rem; }
.site-footer a { color: #cfcabf; font-size: .93rem; display: block; padding: .2rem 0; }
.site-footer a:hover { color: var(--amber); text-decoration: none; }
.foot-brand p { font-size: .92rem; color: #98948a; max-width: 34ch; }
.foot-bottom { border-top: 1px solid #2b2e35; margin-top: 2rem; padding-top: 1.4rem; display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; justify-content: space-between; font-size: .84rem; color: #8b877d; }
.disclosure { background: var(--paper-2); border: 1px solid var(--line); border-radius: 12px; padding: .9rem 1.1rem; font-size: .86rem; color: var(--slate); }

/* utility */
.stack-sm > * + * { margin-top: .4rem; }
.mt-2 { margin-top: 2rem; }
.section-head { max-width: 62ch; margin-bottom: 2rem; }
.section-head.center { margin-inline: auto; }

/* responsive */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; }
  .callcard { order: -1; }
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .menu-btn { display: grid; place-items: center; }
  .cols-3, .cols-2 { grid-template-columns: 1fr; }
  .cols-4 { grid-template-columns: 1fr 1fr; }
  .strip .wrap { justify-content: flex-start; }
  .foot-grid { grid-template-columns: 1fr; }
}

/* ===== Content-page components ===== */

/* page hero (content pages) */
.pagehero { background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%); border-bottom: 1px solid var(--line); padding-block: clamp(1.6rem, 4vw, 2.6rem) clamp(2rem, 5vw, 3rem); }
.pagehero h1 { max-width: 20ch; margin-top: .5rem; }
.pagehero .lead { max-width: 60ch; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: .4rem; font-family: var(--display); font-size: .82rem; color: var(--slate); }
.breadcrumb a { color: var(--slate); }
.breadcrumb a:hover { color: var(--amber-ink); text-decoration: none; }
.breadcrumb span { color: var(--line); }

/* byline / E-E-A-T */
.byline { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1rem; margin-top: 1.2rem; font-size: .88rem; color: var(--slate); font-family: var(--display); }
.byline .who { display: inline-flex; align-items: center; gap: .5rem; color: var(--ink-2); font-weight: 600; }
.byline .who .av { width: 30px; height: 30px; border-radius: 50%; background: var(--ink); color: #fff; display: grid; place-items: center; font-size: .8rem; }
.byline .sep { color: var(--line); }

/* article layout */
.article { display: grid; grid-template-columns: minmax(0,1fr) 260px; gap: 3rem; align-items: start; }
.prose { max-width: 72ch; font-size: 1.06rem; }
.prose > h2 { margin-top: 2.4rem; padding-top: .3rem; }
.prose > h3 { margin-top: 1.7rem; }
.prose p, .prose li { color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 1.2rem; margin: 0 0 1.1rem; }
.prose li { margin-bottom: .45rem; }
.prose a { text-decoration: underline; text-underline-offset: 2px; }
.prose blockquote { margin: 1.4rem 0; padding: .3rem 0 .3rem 1.2rem; border-left: 3px solid var(--amber); font-size: 1.12rem; color: var(--ink); font-family: var(--display); }
.prose strong { color: var(--ink); }
.prose img { border-radius: var(--radius); border: 1px solid var(--line); margin: 1.2rem 0; }

/* sticky sidebar */
.aside { position: sticky; top: 84px; display: grid; gap: 1rem; }
.toc { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.2rem; box-shadow: var(--shadow-soft); }
.toc h4 { font-family: var(--display); font-size: .74rem; text-transform: uppercase; letter-spacing: .12em; color: var(--slate); margin: 0 0 .6rem; }
.toc a { display: block; font-size: .92rem; color: var(--ink-2); padding: .28rem 0; }
.toc a:hover { color: var(--amber-ink); text-decoration: none; }

/* comparison / data tables */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); margin: 1.4rem 0; -webkit-overflow-scrolling: touch; background: var(--card); }
.ctable { width: 100%; border-collapse: collapse; min-width: 560px; font-size: .96rem; }
.ctable th, .ctable td { text-align: left; padding: .8rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.ctable thead th { font-family: var(--display); font-weight: 600; background: var(--paper-2); color: var(--ink); position: sticky; top: 0; white-space: nowrap; }
.ctable tbody tr:last-child td { border-bottom: 0; }
.ctable tbody th { font-family: var(--display); font-weight: 600; color: var(--ink); }
.ctable .yes { color: var(--green); font-weight: 600; }
.ctable .no { color: #b23b3b; }
.ctable .best { background: var(--amber-wash); }
.ctable caption { caption-side: bottom; text-align: left; font-size: .82rem; color: var(--slate); padding: .6rem 1rem; }

/* callouts */
.callout { border: 1px solid var(--line); border-left: 4px solid var(--slate); border-radius: 12px; background: var(--card); padding: 1.1rem 1.3rem; margin: 1.5rem 0; }
.callout p:last-child { margin-bottom: 0; }
.callout .lbl { font-family: var(--display); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: .4rem; display: block; }
.callout.pick { border-left-color: var(--amber); background: var(--amber-wash); }
.callout.pick .lbl { color: var(--amber-ink); }
.callout.info { border-left-color: var(--green); background: var(--green-wash); }
.callout.info .lbl { color: var(--green); }
.callout.note .lbl { color: var(--slate); }

/* pros / cons */
.proscons { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 1.4rem 0; }
.proscons .box { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.3rem; background: var(--card); }
.proscons h4 { font-family: var(--display); font-size: 1rem; margin: 0 0 .6rem; display: flex; align-items: center; gap: .5rem; }
.proscons .pros h4 { color: var(--green); }
.proscons .cons h4 { color: #b23b3b; }
.proscons ul { list-style: none; padding: 0; margin: 0; }
.proscons li { padding-left: 1.5rem; position: relative; margin-bottom: .5rem; font-size: .96rem; color: var(--ink-2); }
.proscons .pros li::before { content: "\2713"; position: absolute; left: 0; color: var(--green); font-weight: 700; }
.proscons .cons li::before { content: "\2013"; position: absolute; left: 0; color: #b23b3b; font-weight: 700; }

/* verdict / summary box */
.verdict { background: var(--ink); color: #e9e4d9; border-radius: var(--radius-lg); padding: 1.5rem 1.7rem; margin: 1.8rem 0; }
.verdict h3 { color: #fff; margin-bottom: .5rem; }
.verdict p { color: #cfcabf; margin-bottom: 0; }
.verdict .btn { margin-top: 1rem; }

/* rating pill */
.score { display: inline-flex; align-items: baseline; gap: .2rem; font-family: var(--display); font-weight: 700; }
.score b { font-size: 1.15rem; color: var(--ink); }
.score span { font-size: .8rem; color: var(--slate); }
.pill { display: inline-block; font-family: var(--display); font-weight: 600; font-size: .74rem; padding: .18rem .55rem; border-radius: 999px; background: var(--paper-2); color: var(--ink-2); }
.pill.win { background: var(--green-wash); color: var(--green); }
.pill.warn { background: var(--amber-wash); color: var(--amber-ink); }

/* inline CTA */
.cta-inline { background: linear-gradient(135deg, #f4a35f 0%, var(--amber) 100%); color: #fff; border-radius: var(--radius-lg); padding: 1.6rem 1.8rem; margin: 2rem 0; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; }
.cta-inline h3 { color: #fff; margin: 0; max-width: 30ch; }
.cta-inline .btn { background: #fff; color: var(--amber-ink); flex: none; }
.cta-inline .btn:hover { background: var(--ink); color: #fff; }

/* forms */
.form { display: grid; gap: 1.1rem; max-width: 560px; }
.form .field { display: grid; gap: .4rem; }
.form label { font-family: var(--display); font-weight: 600; font-size: .92rem; color: var(--ink); }
.form input, .form select, .form textarea { font-family: var(--body); font-size: 1rem; padding: .8rem .9rem; border: 1.5px solid var(--line); border-radius: 10px; background: var(--card); color: var(--ink); width: 100%; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px var(--amber-wash); }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.form .hint { font-size: .82rem; color: var(--slate); }
.form button { justify-self: start; }

/* calculator */
.calc { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; align-items: start; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: clamp(1.3rem, 3vw, 2rem); margin: 1.6rem 0; }
.calc .controls { display: grid; gap: 1.1rem; }
.calc .ctrl label { display: flex; justify-content: space-between; font-family: var(--display); font-weight: 600; font-size: .92rem; margin-bottom: .4rem; }
.calc .ctrl label b { color: var(--amber-ink); }
.calc input[type=range] { width: 100%; accent-color: var(--amber); }
.calc .result { background: var(--ink); color: #fff; border-radius: var(--radius); padding: 1.4rem 1.5rem; align-self: stretch; display: flex; flex-direction: column; justify-content: center; }
.calc .result .big { font-family: var(--display); font-weight: 700; font-size: clamp(2rem, 5vw, 2.9rem); line-height: 1; color: #fff; }
.calc .result .lbl { color: #b7b3a8; font-size: .9rem; margin-top: .3rem; }
.calc .result .sub { color: #cfcabf; font-size: .92rem; margin-top: 1rem; border-top: 1px solid #2b2e35; padding-top: 1rem; }
.calc .result .sub b { color: var(--amber); }

@media (max-width: 920px) {
  .article { grid-template-columns: 1fr; }
  .aside { position: static; order: -1; }
  .aside .toc { display: none; }
  .calc { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .proscons { grid-template-columns: 1fr; }
  .form .row2 { grid-template-columns: 1fr; }
  .cta-inline { flex-direction: column; align-items: flex-start; }
}