/* Dental Group CRM. The page is a group operating board.
   Paper and stone for surfaces, slate for structure and the practice-management
   layer, copper only where something moves or needs an owner, moss for closed. */
:root {
  --paper: #FBFBFA; --stone: #F1EFEB; --white: #FFFFFF;
  --ink: #1B232B; --slate: #33414E; --mute: #55616C;
  --copper: #B5532A; --copper-dk: #8F3F1E; --copper-tint: #F8E3D6;
  --moss: #4F7A4A; --moss-tint: #E4EDE2;
  --rule: #D9D5CC; --rule-dk: #B9B4A8;
  --sans: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --w: 1180px; --gut: clamp(16px, 4vw, 40px);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--serif); font-size: 17px; line-height: 1.6; }
img, svg { max-width: 100%; display: block; }
a { color: var(--copper-dk); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--copper); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--sans); color: var(--ink); margin: 0; letter-spacing: -0.015em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.25rem); line-height: 1.08; font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.35rem); line-height: 1.14; font-weight: 600; }
h3 { font-size: 1.12rem; line-height: 1.3; font-weight: 600; letter-spacing: -0.005em; }
p { margin: 0 0 1em; }
ul, ol, dl, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }

.wrap { max-width: var(--w); margin: 0 auto; padding: 0 var(--gut); }
.wrap.narrow { max-width: 780px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; top: 8px; }
.preview-bar { background: var(--copper-tint); color: var(--copper-dk); font: 500 13px/1.4 var(--mono); text-align: center; padding: 6px 12px; }

/* Tags: small mono labels. Copper means live, quiet means descriptive. */
.tag, .lbl { display: inline-block; font: 500 12.5px/1.2 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--copper-dk); margin: 0 0 14px; }
.tag.quiet, .lbl.soft { color: var(--mute); }
.tag.inv { color: #fff; background: rgba(255,255,255,.16); padding: 4px 8px; border-radius: 3px; }
.lbl.chip { border: 1px solid var(--rule-dk); border-radius: 3px; padding: 5px 9px; background: var(--white); color: var(--slate); }

/* Buttons */
.btn { display: inline-flex; align-items: center; min-height: 48px; padding: 12px 22px; border-radius: 4px; border: 2px solid var(--copper); background: var(--copper); color: #fff; font: 600 16px/1.2 var(--sans); text-decoration: none; }
.btn:hover { background: var(--copper-dk); border-color: var(--copper-dk); color: #fff; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--slate); }
.btn.ghost:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn.small { min-height: 40px; padding: 8px 16px; font-size: 15px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

/* Header */
.top { background: var(--paper); border-bottom: 1px solid var(--rule); position: sticky; top: 0; z-index: 5; }
.top-in { display: flex; align-items: center; gap: 24px; min-height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); margin-right: auto; }
.brand-txt { display: flex; flex-direction: column; font-family: var(--sans); line-height: 1.15; }
.brand-txt strong { font-size: 16px; font-weight: 700; }
.brand-txt span { font-size: 12.5px; color: var(--mute); }
.top nav { display: flex; gap: 22px; font: 500 15px/1.2 var(--sans); }
.top nav a { color: var(--slate); text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--copper); }
@media (max-width: 560px) { .top .btn { display: none; } }
@media (max-width: 860px) {
  .top { position: static; }
  .top-in { flex-wrap: wrap; gap: 8px 16px; padding-top: 10px; padding-bottom: 10px; }
  .top nav { order: 3; width: 100%; gap: 18px; overflow-x: auto; padding-bottom: 2px; font-size: 14.5px; white-space: nowrap; }
}

/* Hero: copy left, the board right */
.hero { padding: clamp(36px, 6vw, 72px) 0 clamp(40px, 6vw, 80px); border-bottom: 1px solid var(--rule); }
.hero-in { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.hero .lede, .page-head .lede { font-size: clamp(1.12rem, 1.6vw, 1.28rem); line-height: 1.55; color: var(--slate); margin: 22px 0 0; max-width: 38em; }
.plain-note { margin: 34px 0 0; padding: 16px 18px; background: var(--white); border: 1px solid var(--rule); border-left: 4px solid var(--slate); border-radius: 4px; font-size: 16px; line-height: 1.55; max-width: 40em; }
.plain-note .tag { display: block; margin-bottom: 6px; }
.hero-art { background: var(--white); border: 1px solid var(--rule); border-radius: 8px; padding: 16px 16px 12px; max-width: 460px; width: 100%; justify-self: end; }
.hero-art figcaption { font: 400 13.5px/1.45 var(--sans); color: var(--mute); border-top: 1px solid var(--rule); margin-top: 10px; padding-top: 10px; }
.board { width: 100%; height: auto; fill: #33414E; }
.board text { font-family: var(--sans); font-size: 11.5px; }
.board .t-code { font-family: var(--mono); font-weight: 500; font-size: 14px; fill: var(--ink); }
.board .t-pms { font-family: var(--mono); font-size: 9.5px; }
.board .t-node { font-weight: 600; font-size: 14px; fill: var(--ink); }
.board .t-layer { font-family: var(--mono); font-weight: 500; font-size: 11.5px; letter-spacing: .06em; }
@media (max-width: 900px) {
  .hero-in { grid-template-columns: 1fr; }
  .hero-art { justify-self: start; }
}

/* Board bands and the ruled strip that opens each one */
.band { padding: clamp(48px, 7vw, 88px) 0; }
.band.tint { background: var(--stone); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.strip { display: flex; align-items: center; gap: 12px; border-top: 2px solid var(--ink); padding-top: 10px; margin-bottom: 22px; font: 500 12.5px/1.2 var(--mono); letter-spacing: .05em; text-transform: uppercase; color: var(--slate); }
.strip .idx { background: var(--ink); color: #fff; padding: 3px 7px; border-radius: 2px; }
.band-head { max-width: 46em; margin-bottom: 34px; }
.band-head h2 + .intro { margin-top: 16px; }
.intro { color: var(--slate); font-size: 1.08rem; margin-bottom: .8em; }
.aside { margin: 28px 0 0; padding-left: 16px; border-left: 3px solid var(--rule-dk); color: var(--slate); max-width: 44em; }

/* 01 Problem: exception tiles */
.exceptions { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.exc { background: var(--white); border: 1px solid var(--rule); border-top: 3px solid var(--copper); border-radius: 4px; padding: 16px 18px 20px; display: flex; flex-direction: column; }
.exc-top { display: flex; justify-content: space-between; gap: 8px; font: 500 12px/1.2 var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--mute); }
.exc-tag { color: var(--copper-dk); }
.mini { width: 120px; height: 64px; margin: 18px 0 16px; }
.exc h3 { margin-bottom: 8px; }
.exc p { margin: 0; font-size: 16px; line-height: 1.55; color: var(--slate); }
@media (max-width: 1020px) { .exceptions { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .exceptions { grid-template-columns: 1fr; } }

/* 02 What gets built: the stack */
.stack-lbl { font: 500 12.5px/1.2 var(--mono); letter-spacing: .05em; text-transform: uppercase; color: var(--mute); margin: 0 0 10px; }
.stack-roles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.stack-roles li { background: var(--white); border: 1px solid var(--rule-dk); border-radius: 4px; padding: 14px 16px; }
.stack-roles h3 { font-size: 1rem; margin-bottom: 6px; }
.stack-roles p, .stack-inputs p { margin: 0; font-size: 16px; line-height: 1.5; color: var(--slate); }
.stack-pipe { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; height: 26px; margin-bottom: 4px; }
.stack-pipe span { width: 2px; background: var(--slate); justify-self: center; }
.stack-mid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 12px; }
.stack-layer { background: var(--copper-tint); border: 2px solid var(--copper); border-radius: 6px; padding: 22px 24px; }
.stack-layer h3, .stack-base h3 { font-size: 1.35rem; margin-bottom: 8px; }
.stack-layer p { margin: 0; font-size: 1.05rem; }
.stack-inputs { display: grid; gap: 12px; }
.stack-inputs li { background: var(--white); border: 1px dashed var(--rule-dk); border-left: 3px solid var(--copper); border-radius: 4px; padding: 12px 16px; }
.stack-inputs .tag { margin-bottom: 6px; }
.stack-inputs h3 { font-size: 1rem; margin-bottom: 4px; }
.stack-link { display: flex; align-items: center; gap: 12px; width: min(58%, 100%); padding: 0 24px; height: 40px; }
.stack-link span { flex: 1; height: 100%; border-left: 2px solid var(--slate); }
.stack-link span:last-child { border-left: 0; border-right: 2px solid var(--slate); }
.stack-link em { font: 500 12.5px/1 var(--mono); font-style: normal; letter-spacing: .05em; text-transform: uppercase; color: var(--slate); }
.stack-base { background: var(--slate); color: #fff; border-radius: 6px; padding: 22px 24px; }
.stack-base h3 { color: #fff; }
.stack-base p { margin: 0; color: #E9E6DF; font-size: 1.05rem; }
@media (max-width: 900px) {
  .stack-roles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stack-pipe { grid-template-columns: repeat(2, 1fr); }
  .stack-pipe span:nth-child(n+3) { display: none; }
  .stack-mid { grid-template-columns: 1fr; }
  .stack-link { width: 100%; }
}
@media (max-width: 520px) { .stack-roles { grid-template-columns: 1fr; } .stack-pipe { grid-template-columns: 1fr; } .stack-pipe span:nth-child(n+2) { display: none; } }

/* 03 Example: hatched synthetic panel and a two-lane swimlane */
.synth { position: relative; background: var(--white); border: 2px dashed var(--slate); border-radius: 8px; padding: clamp(20px, 3.5vw, 40px); padding-top: clamp(44px, 5vw, 56px);
  background-image: repeating-linear-gradient(135deg, transparent 0 14px, rgba(51,65,78,.035) 14px 16px); }
.synth-flag { position: absolute; top: -2px; left: -2px; margin: 0; background: var(--slate); color: #fff; font: 500 13px/1.2 var(--mono); letter-spacing: .04em; text-transform: uppercase; padding: 8px 14px; border-radius: 8px 0 8px 0; }
.swim { display: grid; grid-template-columns: 150px repeat(var(--n), minmax(0, 1fr)); grid-template-rows: auto auto; gap: 0; border: 1px solid var(--rule-dk); border-radius: 6px; overflow: hidden; background: var(--white); }
.sw-steps { display: contents; }
.lane-name { grid-column: 1; padding: 16px 14px; font: 600 15px/1.3 var(--sans); background: var(--stone); border-right: 1px solid var(--rule-dk); display: flex; flex-direction: column; gap: 4px; justify-content: center; }
.lane-name em { font: 400 12px/1 var(--mono); font-style: normal; text-transform: uppercase; letter-spacing: .05em; color: var(--mute); }
.lane-name.lane-a { grid-row: 1; border-bottom: 1px solid var(--rule-dk); }
.lane-name.lane-b { grid-row: 2; }
.sw-step { grid-column: calc(var(--col) + 1); padding: 16px 16px 18px; border-left: 1px dotted var(--rule-dk); position: relative; }
.sw-step.lane-a { grid-row: 1; border-bottom: 1px solid var(--rule-dk); background: linear-gradient(var(--copper), var(--copper)) top left / 100% 4px no-repeat; }
.sw-step.lane-b { grid-row: 2; background: linear-gradient(var(--moss), var(--moss)) top left / 100% 4px no-repeat; }
.sw-n { display: flex; align-items: center; gap: 8px; font: 500 12.5px/1 var(--mono); color: var(--mute); margin-bottom: 8px; }
.sw-lane { display: none; font-weight: 500; text-transform: uppercase; letter-spacing: .05em; color: var(--slate); }
.sw-step h3 { margin-bottom: 6px; }
.sw-step p { margin: 0; font-size: 16px; line-height: 1.5; color: var(--slate); }
.limits { margin: 26px 0 0; padding: 14px 16px; background: var(--stone); border-radius: 4px; font-size: 16px; line-height: 1.55; }
@media (max-width: 900px) {
  .swim { display: block; border: 0; background: transparent; overflow: visible; }
  .lane-name { display: none; }
  .sw-steps { display: grid; gap: 10px; }
  .sw-step, .sw-step.lane-a, .sw-step.lane-b { grid-column: auto; grid-row: auto; border: 1px solid var(--rule-dk); border-radius: 4px; }
  .sw-step.lane-b { margin-left: clamp(16px, 8vw, 56px); }
  .sw-lane { display: inline; }
}

@media (max-width: 600px) { .synth { padding-top: 68px; } .synth-flag { right: -2px; border-radius: 6px 6px 0 0; } }

/* 04 Ownership: a ruled register */
.register { border-top: 1px solid var(--rule-dk); }
.reg-row { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 12px 40px; padding: 20px 0; border-bottom: 1px solid var(--rule-dk); }
.reg-row dt { font: 600 1.12rem/1.35 var(--sans); display: flex; gap: 12px; align-items: baseline; }
.reg-n { font: 500 12.5px/1 var(--mono); color: var(--copper-dk); flex: none; min-width: 24px; }
.reg-row dd { color: var(--ink); }
@media (max-width: 760px) { .reg-row { grid-template-columns: 1fr; } .reg-row dd { padding-left: 36px; } }

/* 05 Process: appointment-book columns, blocks staggered down the day */
.book { display: grid; grid-template-columns: repeat(var(--n), minmax(0, 1fr)); border: 1px solid var(--rule-dk); border-radius: 6px; background: var(--white);
  background-image: repeating-linear-gradient(to bottom, transparent 0 35px, var(--rule) 35px 36px); overflow: hidden; }
.slot { border-left: 1px solid var(--rule-dk); padding-bottom: 20px; display: flex; flex-direction: column; }
.slot:first-child { border-left: 0; }
.slot-col { display: block; background: var(--stone); border-bottom: 1px solid var(--rule-dk); padding: 9px 10px; font: 500 12.5px/1.2 var(--mono); letter-spacing: .05em; text-transform: uppercase; color: var(--slate); }
.slot-block { margin: calc(12px + var(--i) * 36px) 6px 0; background: var(--stone); border: 1px solid var(--rule-dk); border-left: 4px solid var(--slate); border-radius: 3px; padding: 12px 12px 14px; }
.slot-block h3 { font-size: 1.02rem; margin-bottom: 8px; }
.slot-lbl { display: block; font: 500 11.5px/1 var(--mono); letter-spacing: .05em; text-transform: uppercase; color: var(--mute); margin-bottom: 6px; }
.slot-block p { margin: 0; font-size: 16px; line-height: 1.5; font-family: var(--serif); }
.slot.gate .slot-block { background: var(--copper-tint); border-color: var(--copper); border-left-color: var(--copper); }
.slot.gate .slot-lbl { color: var(--copper-dk); }
@media (max-width: 1080px) {
  .book { grid-template-columns: 1fr; background-image: none; }
  .slot { border-left: 0; border-top: 1px solid var(--rule-dk); display: grid; grid-template-columns: 92px minmax(0, 1fr); padding: 0; }
  .slot:first-child { border-top: 0; }
  .slot-col { border-bottom: 0; border-right: 1px solid var(--rule-dk); padding: 16px 10px; }
  .slot-block { margin: 8px; }
}

/* 06 Checklist: a worksheet */
.sheet-wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(24px, 5vw, 64px); align-items: start; }
.sheet-side .band-head { margin-bottom: 0; }
.sheet { background: var(--white); border: 1px solid var(--rule-dk); border-radius: 6px; padding: 8px 24px; counter-reset: item; box-shadow: 6px 6px 0 var(--rule); }
.sheet li { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--rule); align-items: start; }
.sheet li:last-child { border-bottom: 0; }
.box { width: 22px; height: 22px; border: 2px solid var(--slate); border-radius: 3px; margin-top: 3px; background: var(--white); }
@media (max-width: 860px) { .sheet-wrap { grid-template-columns: 1fr; } .sheet { padding: 4px 16px; } }

/* 07 Questions */
.plain-qa { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 48px; }
.plain-qa dt { font: 600 1.12rem/1.35 var(--sans); margin-bottom: 8px; padding-top: 14px; border-top: 1px solid var(--rule-dk); }
.plain-qa dd { color: var(--slate); }
@media (max-width: 760px) { .plain-qa { grid-template-columns: 1fr; } }

/* 08 Who */
.who { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(24px, 4vw, 56px); }
.who-people, .people { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.who-people li, .person { background: var(--white); border: 1px solid var(--rule-dk); border-radius: 6px; padding: 20px 22px; }
.who-people h3, .person h2, .person h3 { font-size: 1.4rem; margin-bottom: 8px; }
.who-people p, .person p { margin: 0; font-size: 16px; line-height: 1.55; color: var(--slate); }
.who-people .tag, .person .lbl { margin-bottom: 8px; color: var(--mute); }
@media (max-width: 900px) { .who { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .who-people, .people { grid-template-columns: 1fr; } }

/* Close */
.closing { padding-top: clamp(40px, 6vw, 72px); }
.close-card { border: 2px solid var(--copper); background: var(--copper-tint); border-radius: 8px; padding: clamp(24px, 5vw, 56px); max-width: 860px; }
.close-mark { width: 120px; height: 64px; margin-bottom: 18px; }
.close-card .intro { color: var(--ink); margin-top: 14px; max-width: 40em; }

/* Footer */
.foot { border-top: 2px solid var(--ink); background: var(--paper); padding: 36px 0 44px; font: 400 15px/1.55 var(--sans); color: var(--slate); }
.foot-in { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 24px 48px; }
.foot-brand { display: flex; gap: 12px; align-items: flex-start; }
.foot-brand .logo { flex: none; margin-top: 3px; }
.foot-brand p { margin: 0; max-width: 34em; }
.foot-links { display: flex; flex-wrap: wrap; gap: 10px 22px; align-content: start; }
.foot-links a { color: var(--ink); }
.foot-legal { grid-column: 1 / -1; margin: 0; font: 400 13px/1.4 var(--mono); color: var(--mute); }
@media (max-width: 760px) { .foot-in { grid-template-columns: 1fr; } }

/* Guide and the shared trust pages (about, contact, privacy, 404) */
.page-head { padding: clamp(40px, 6vw, 72px) 0 clamp(24px, 3vw, 36px); border-bottom: 1px solid var(--rule); background: var(--stone); }
.page-head .note, .byline, .note { font: 400 14.5px/1.5 var(--sans); color: var(--mute); margin-top: 18px; }
section.flush, .page-head + section { padding: clamp(32px, 5vw, 56px) 0; }
main > section:not([class]) { padding: 0 0 clamp(40px, 6vw, 72px); }
.mail-row { margin: 26px 0 0; }
.mail { font: 600 clamp(1.15rem, 3.4vw, 1.6rem)/1.3 var(--sans); color: var(--copper-dk); overflow-wrap: anywhere; }
.prose { font-size: 1.06rem; }
.prose h2 { font-size: clamp(1.4rem, 2.6vw, 1.75rem); margin: 2em 0 .6em; padding-top: 14px; border-top: 2px solid var(--ink); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.2rem; margin: 1.6em 0 .5em; }
.prose ul, .prose ol { margin: 0 0 1.2em; padding-left: 1.3em; }
.prose ul { list-style: square; } .prose ol { list-style: decimal; }
.prose li { margin-bottom: .45em; } .prose li::marker { color: var(--copper); }
.prose blockquote { margin: 1.4em 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--copper); color: var(--slate); }
.prose table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font: 400 16px/1.45 var(--sans); display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 10px 12px; border: 1px solid var(--rule-dk); min-width: 140px; }
.prose th { background: var(--stone); font-weight: 600; }
.prose code { font: 400 .92em var(--mono); background: var(--stone); padding: 1px 5px; border-radius: 3px; }
.prose hr { border: 0; border-top: 1px solid var(--rule-dk); margin: 2em 0; }
.guide-end { margin-top: 48px; padding: 24px; border: 2px solid var(--copper); background: var(--copper-tint); border-radius: 8px; display: flex; flex-wrap: wrap; gap: 16px 24px; align-items: center; justify-content: space-between; }
.guide-end p { margin: 0; font: 600 1.1rem/1.4 var(--sans); }

@media print { .top, .foot, .preview-bar, .actions { display: none; } body { font-size: 12pt; } }