/* Lakeshore demo design system. Tokens follow the Bright Smile build (teal,
   soft blue-grey ground, white cards, pill chips, Avenir Next). Every page uses
   these tokens and components; page styles add layout only. */
:root {
  --teal: #0e7490; --teal-deep: #155e75; --teal-soft: #e6f4f8; --teal-line: #cfe6ee;
  --ink: #0f2a33; --ink-soft: #4a6572; --muted: #8b98ab; --line: #dce8ee;
  --bg: #f2f7f9; --panel: #ffffff; --panel-soft: #f7fbfc;
  --shadow: 0 6px 18px rgba(15, 42, 51, 0.07); --shadow-lift: 0 12px 30px rgba(15, 42, 51, 0.12);
  --font: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --green: #15803d; --green-soft: #e9f7ee; --amber: #b45309; --amber-soft: #fef6e7;
  --red: #dc2626; --red-soft: #fdecec; --purple: #6d28d9; --purple-soft: #f1ebfd; --signal: #3567b0; --signal-soft: #e8effa;
  --hot: #c2410c; --hot-soft: #fff1e8;
  --radius: 16px; --radius-sm: 10px; --sidebar: 236px;
  /* legacy aliases used by page scripts */
  --blue: var(--signal); --blue-soft: var(--signal-soft); --ok: var(--green); --ok-soft: var(--green-soft);
  --bad: var(--red); --bad-soft: var(--red-soft); --warm: var(--amber); --warm-soft: var(--amber-soft);
  --nurture: var(--teal); --nurture-soft: var(--teal-soft); --nofit: var(--muted); --nofit-soft: #eef2f5;
  --accent: var(--teal); --accent-soft: var(--teal-soft); --accent-ink: var(--teal-deep);
  --code-bg: #0f2a33; --code-ink: #c9e6ef;
}
* { box-sizing: border-box; }
html, body { background: var(--bg); }
body { margin: 0; color: var(--ink); font: 15px/1.55 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--teal-deep); }
h1 { font-size: 26px; margin: 0 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 18px; margin: 26px 0 10px; }
h3 { font-size: 15px; margin: 0 0 10px; }

/* App shell: sidebar plus content */
.shell { display: grid; grid-template-columns: var(--sidebar) 1fr; min-height: 100vh; }
.sidebar { position: sticky; top: 0; height: 100vh; overflow-y: auto; background: #0f2a33; color: #d7e8ee; padding: 18px 14px; display: flex; flex-direction: column; gap: 4px; }
.sidebar .brandrow { display: flex; align-items: center; gap: 10px; padding: 4px 6px 14px; }
.sidebar .mark { width: 38px; height: 38px; border-radius: 11px; background: linear-gradient(140deg, #22a3c3, var(--teal)); display: grid; place-items: center; flex: none; }
.sidebar .brand { font-weight: 700; font-size: 14px; color: #fff; line-height: 1.2; }
.sidebar .brand small { display: block; font-weight: 500; font-size: 11px; color: #8fb3c0; }
.sidebar .section { font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: #6f97a6; padding: 14px 10px 6px; }
.sidebar a.nav { display: flex; align-items: center; gap: 10px; color: #c9dde4; text-decoration: none; padding: 8px 10px; border-radius: 10px; font-size: 13.5px; font-weight: 500; }
.sidebar a.nav:hover { background: rgba(255, 255, 255, 0.06); color: #fff; }
.sidebar a.nav[aria-current="page"] { background: linear-gradient(140deg, rgba(34, 163, 195, .28), rgba(14, 116, 144, .28)); color: #fff; font-weight: 600; }
.sidebar a.nav .ico { width: 18px; text-align: center; opacity: .9; }
.sidebar .foot { margin-top: auto; padding: 14px 6px 0; display: grid; gap: 8px; }
.content { min-width: 0; }
.topline { display: flex; align-items: center; gap: 10px; padding: 14px 28px; border-bottom: 1px solid var(--line); background: var(--topline-bg); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 5; }
.topline .crumb { font-size: 13px; color: var(--ink-soft); }
.topline .spacer { margin-left: auto; }
.live-dot { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-soft); }
.live-dot::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.live-dot.on::before { background: #22c55e; box-shadow: 0 0 0 4px rgba(34, 197, 94, .18); }
.demo-badge { background: linear-gradient(140deg, #f59e0b, #ea580c); color: #fff; font-size: 10.5px; font-weight: 800; letter-spacing: .1em; padding: 3px 9px; border-radius: 999px; }
main { max-width: 1240px; margin: 0 auto; padding: 26px 28px 70px; }
.lede { color: var(--ink-soft); margin: 4px 0 20px; max-width: 860px; }
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; }
  .sidebar .section, .sidebar .foot { display: none; }
  main { padding: 18px 16px 50px; }
}

/* Surfaces */
.panel, .card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.card.hover { transition: transform .15s ease, box-shadow .15s ease; }
.card.hover:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.muted { color: var(--ink-soft); font-size: 13px; }
.note { background: var(--amber-soft); border: 1px solid #f6dfb3; color: #7a4b07; padding: 11px 15px; border-radius: 12px; font-size: 13px; margin: 12px 0 16px; }
.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: 1fr 1fr; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.four { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1000px) { .grid.two, .grid.three, .grid.four { grid-template-columns: 1fr; } }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.hero { background: linear-gradient(135deg, #0f2a33 0%, #155e75 60%, #0e7490 100%); color: #fff; border-radius: 20px; padding: 26px 28px; box-shadow: var(--shadow-lift); margin-bottom: 20px; }
.hero h1 { color: #fff; }
.hero p { color: #cfe6ee; margin: 6px 0 0; max-width: 760px; }
.banner { display: flex; align-items: center; gap: 14px; background: linear-gradient(120deg, #155e75, #3c6e8f); color: #fff; border-radius: var(--radius); padding: 16px 20px; text-decoration: none; box-shadow: var(--shadow); margin: 6px 0 18px; }
.banner b { display: block; font-size: 15px; } .banner span { color: #cfe6ee; font-size: 13px; } .banner .go { margin-left: auto; font-size: 20px; }

/* Stats */
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); position: relative; overflow: hidden; }
.stat::after { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: linear-gradient(90deg, var(--teal), #22a3c3); }
.stat .k { font-size: 11px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .07em; font-weight: 600; }
.stat .v { font-size: 32px; font-weight: 700; margin: 4px 0 2px; letter-spacing: -0.02em; }
.stat .s { font-size: 12px; color: var(--ink-soft); }
.stat.flash { animation: flash 900ms ease-out; }
@keyframes flash { from { box-shadow: 0 0 0 3px rgba(34, 163, 195, .45), var(--shadow); } to { box-shadow: var(--shadow); } }
.bar { height: 10px; background: linear-gradient(90deg, var(--teal), #22a3c3); border-radius: 6px; min-width: 3px; transition: width .4s ease; }
.track { flex: 1; background: var(--teal-soft); border-radius: 6px; overflow: hidden; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); font-weight: 600; }
tbody tr { transition: background .12s ease; }
tbody tr:hover { background: var(--panel-soft); }

/* Pills and chips */
.pill { display: inline-block; font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 999px; white-space: nowrap; letter-spacing: .02em; }
.HOT { background: var(--hot-soft); color: var(--hot); } .WARM { background: var(--amber-soft); color: var(--amber); }
.NURTURE { background: var(--teal-soft); color: var(--teal-deep); } .NOT_A_FIT { background: var(--nofit-soft); color: var(--muted); }
.pill.ok { background: var(--green-soft); color: var(--green); } .pill.bad { background: var(--red-soft); color: var(--red); }
.pill.info { background: var(--signal-soft); color: var(--signal); } .pill.wait { background: var(--amber-soft); color: var(--amber); }
.pill.live { background: var(--green-soft); color: var(--green); } .pill.design { background: var(--amber-soft); color: var(--amber); } .pill.roadmap { background: var(--purple-soft); color: var(--purple); }
.chip { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--teal-line); background: var(--panel); color: var(--teal-deep); border-radius: 999px; padding: 6px 12px; font: 600 12.5px var(--font); cursor: pointer; transition: all .12s ease; }
.chip:hover { background: var(--teal-soft); transform: translateY(-1px); }
.chip[aria-pressed="true"] { background: var(--teal); color: #fff; border-color: var(--teal); }

/* Buttons and forms */
.btn { border: 0; background: linear-gradient(140deg, var(--teal), var(--teal-deep)); color: #fff; padding: 10px 16px; border-radius: 10px; font: 700 13.5px var(--font); cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: transform .12s ease, box-shadow .12s ease; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 14px rgba(14, 116, 144, .25); }
.btn.secondary { background: var(--panel); color: var(--teal-deep); border: 1px solid var(--teal-line); }
.btn.ok { background: linear-gradient(140deg, #16a34a, var(--green)); }
.btn.ghost { background: transparent; color: #c9dde4; border: 1px solid rgba(255, 255, 255, .18); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
label { display: block; font-size: 12px; font-weight: 600; color: var(--ink-soft); margin: 12px 0 5px; }
input, select, textarea { width: 100%; font: 14px var(--font); padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); color: var(--ink); transition: border-color .12s ease, box-shadow .12s ease; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px var(--teal-soft); }
textarea { min-height: 90px; resize: vertical; }

/* Code, details */
.code { font-family: var(--mono); font-size: 11.5px; background: var(--code-bg); color: var(--code-ink); border-radius: 12px; padding: 14px 16px; overflow: auto; line-height: 1.55; }
details { border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; background: var(--panel); margin-bottom: 8px; box-shadow: var(--shadow); }
details summary { cursor: pointer; font-weight: 600; }
details[open] summary { color: var(--teal-deep); }

/* Motion helpers */
.fade-in { animation: fadein .35s ease both; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }
footer.site { text-align: center; color: var(--muted); font-size: 12px; padding: 18px; }

/* Dark mode: the same components on dark tokens. Follows the system setting
   unless the viewer picks one with the switch (data-theme on <html>). */
:root { --topline-bg: rgba(255, 255, 255, .72); color-scheme: light; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --teal: #22a3c3; --teal-deep: #67c8df; --teal-soft: rgba(34, 163, 195, .14); --teal-line: rgba(103, 200, 223, .28);
    --ink: #e6f1f5; --ink-soft: #a4bcc6; --muted: #7d93a0; --line: #22383f;
    --bg: #0b1a1f; --panel: #11252c; --panel-soft: #152d35; --topline-bg: rgba(11, 26, 31, .8);
    --shadow: 0 6px 18px rgba(0, 0, 0, .35); --shadow-lift: 0 12px 30px rgba(0, 0, 0, .5);
    --green: #4ade80; --green-soft: rgba(74, 222, 128, .12); --amber: #fbbf24; --amber-soft: rgba(251, 191, 36, .12);
    --red: #f87171; --red-soft: rgba(248, 113, 113, .12); --purple: #c4b5fd; --purple-soft: rgba(196, 181, 253, .14);
    --signal: #93c5fd; --signal-soft: rgba(147, 197, 253, .12); --hot: #fb923c; --hot-soft: rgba(251, 146, 60, .12);
    --nofit-soft: #1b3038; --code-bg: #071216; --code-ink: #c9e6ef;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --teal: #22a3c3; --teal-deep: #67c8df; --teal-soft: rgba(34, 163, 195, .14); --teal-line: rgba(103, 200, 223, .28);
  --ink: #e6f1f5; --ink-soft: #a4bcc6; --muted: #7d93a0; --line: #22383f;
  --bg: #0b1a1f; --panel: #11252c; --panel-soft: #152d35; --topline-bg: rgba(11, 26, 31, .8);
  --shadow: 0 6px 18px rgba(0, 0, 0, .35); --shadow-lift: 0 12px 30px rgba(0, 0, 0, .5);
  --green: #4ade80; --green-soft: rgba(74, 222, 128, .12); --amber: #fbbf24; --amber-soft: rgba(251, 191, 36, .12);
  --red: #f87171; --red-soft: rgba(248, 113, 113, .12); --purple: #c4b5fd; --purple-soft: rgba(196, 181, 253, .14);
  --signal: #93c5fd; --signal-soft: rgba(147, 197, 253, .12); --hot: #fb923c; --hot-soft: rgba(251, 146, 60, .12);
  --nofit-soft: #1b3038; --code-bg: #071216; --code-ink: #c9e6ef;
}
.note { background: var(--amber-soft); border-color: var(--amber-soft); color: var(--ink); }
.btn { color: #fff; }
.btn.secondary { color: var(--teal-deep); }