/* NetForms site. The page is a WinForms design surface: a dot snap grid, a form with grab handles,
   property-grid tables. Tokens first (light, then dark), components only through tokens. */

:root {
  --ground: #eceef3;          /* SystemColors.Control, cooled toward the accent */
  --grid-dot: #c9cbd8;
  --paper: #ffffff;
  --paper-2: #f6f6fa;
  --ink: #1a1730;
  --ink-2: #4a4764;
  --ink-3: #75728c;
  --rule: #d6d5e2;
  --accent: #5b34d6;
  --accent-ink: #ffffff;
  --accent-soft: #e7e1fb;
  --signal: #d63f6e;
  --ok: #1d8a52;
  --warn: #a86400;
  --term-bg: #15131e;
  --term-ink: #d9d5ea;
  --term-dim: #8a86a3;
  --title-bar: #ffffff;
  --shadow: 0 1px 0 rgba(26, 23, 48, .06), 0 12px 32px -12px rgba(26, 23, 48, .28);

  --display: "Archivo", "Segoe UI", system-ui, sans-serif;
  --body: "Archivo", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  --step--1: .875rem;
  --step-0: 1rem;
  --step-1: 1.25rem;
  --step-2: 1.6rem;
  --step-3: clamp(1.9rem, 1.3rem + 2.4vw, 2.6rem);
  --step-4: clamp(2.4rem, 1.4rem + 4.4vw, 4.2rem);

  --gutter: clamp(16px, 4vw, 40px);
  --measure: 65ch;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #13121a;
    --grid-dot: #2c2a3a;
    --paper: #1d1b27;
    --paper-2: #232130;
    --ink: #ecebf4;
    --ink-2: #bbb8cf;
    --ink-3: #8d8aa5;
    --rule: #34314a;
    --accent: #9c83ff;
    --accent-ink: #13121a;
    --accent-soft: #2c2548;
    --signal: #ff6f98;
    --ok: #4cc98a;
    --warn: #e0a54a;
    --term-bg: #0c0b12;
    --term-ink: #d9d5ea;
    --term-dim: #7f7b99;
    --title-bar: #26233a;
    --shadow: 0 1px 0 rgba(0, 0, 0, .4), 0 12px 32px -12px rgba(0, 0, 0, .7);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ground: #13121a;
  --grid-dot: #2c2a3a;
  --paper: #1d1b27;
  --paper-2: #232130;
  --ink: #ecebf4;
  --ink-2: #bbb8cf;
  --ink-3: #8d8aa5;
  --rule: #34314a;
  --accent: #9c83ff;
  --accent-ink: #13121a;
  --accent-soft: #2c2548;
  --signal: #ff6f98;
  --ok: #4cc98a;
  --warn: #e0a54a;
  --term-bg: #0c0b12;
  --term-ink: #d9d5ea;
  --term-dim: #7f7b99;
  --title-bar: #26233a;
  --shadow: 0 1px 0 rgba(0, 0, 0, .4), 0 12px 32px -12px rgba(0, 0, 0, .7);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  padding-inline: var(--gutter);
  background-color: var(--ground);
  /* the designer's snap grid: one dot every 8 px, as in the Visual Studio designer */
  background-image: radial-gradient(var(--grid-dot) 1px, transparent 1.2px);
  background-size: 16px 16px;
  color: var(--ink);
  font: 400 var(--step-0)/1.6 var(--body);
  font-variation-settings: "wdth" 100;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: .18em; }
a:focus-visible, button:focus-visible { outline: 2px dashed var(--accent); outline-offset: 3px; }
code, pre, kbd { font-family: var(--mono); font-size: .9em; }
:not(pre) > code { background: var(--accent-soft); color: var(--ink); padding: .08em .35em; border-radius: 3px; }

.wrap { max-width: 1120px; margin-inline: auto; }

h1, h2, h3 {
  font-family: var(--display);
  font-variation-settings: "wdth" 118;
  line-height: 1.05;
  letter-spacing: -.01em;
  text-wrap: balance;
  margin: 0;
}
h1 { font-size: var(--step-4); font-weight: 800; }
h2 { font-size: var(--step-3); font-weight: 780; }
h3 { font-size: var(--step-1); font-weight: 700; font-variation-settings: "wdth" 108; }
p { margin: 0; max-width: var(--measure); }
.eyebrow {
  font: 600 var(--step--1)/1.2 var(--mono);
  letter-spacing: .04em;
  color: var(--ink-3);
}

/* ---- top bar ---------------------------------------------------------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding-block: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: var(--step-1); font-family: var(--display); font-variation-settings: "wdth" 118; }
.brand img { width: 32px; height: 32px; }
.nav { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; font-size: var(--step--1); }
.nav a { color: var(--ink-2); text-decoration: none; }
.nav a:hover { color: var(--accent); }
.lang { font-family: var(--mono); border: 1px solid var(--rule); padding: 2px 8px; border-radius: 3px; }

/* ---- hero ------------------------------------------------------------- */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px);
  align-items: center; padding-block: clamp(24px, 6vw, 72px) clamp(40px, 7vw, 88px);
}
.hero-copy { display: grid; gap: 22px; }
.hero h1 .strike { color: var(--ink-3); text-decoration: line-through; text-decoration-color: var(--signal); text-decoration-thickness: .08em; }
.lede { font-size: var(--step-1); color: var(--ink-2); line-height: 1.5; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 4px;
  font: 600 var(--step-0)/1 var(--body); text-decoration: none; border: 1px solid var(--rule);
  color: var(--ink); background: var(--paper);
}
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn:hover { border-color: var(--accent); }

/* The form on the design surface. Its width breathes; the button is anchored Bottom|Right and follows. */
.surface { position: relative; padding: 18px 0 30px; }
.form {
  position: relative; width: 100%; max-width: 100%;
  background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; box-shadow: var(--shadow);
  font: 400 13px/1.3 "Segoe UI", var(--body);
  animation: breathe 7s ease-in-out infinite;
}
@keyframes breathe { 0%, 100% { width: 100%; } 50% { width: 78%; } }
.form-title {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 8px 10px 8px 12px; background: var(--title-bar); border-bottom: 1px solid var(--rule);
  border-radius: 6px 6px 0 0; font-weight: 600; color: var(--ink);
}
.caption-btns { display: flex; gap: 12px; color: var(--ink-3); font-family: var(--mono); font-size: 12px; }
.form-body { position: relative; padding: 12px 12px 58px; display: grid; gap: 10px; color: var(--ink); }
.grid-mini { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.grid-mini th, .grid-mini td { border: 1px solid var(--rule); padding: 3px 6px; text-align: left; white-space: nowrap; }
.grid-mini th { background: var(--paper-2); font-weight: 600; }
.grid-mini td.num { text-align: right; }
.grid-mini tr.sel td { background: var(--accent-soft); }
.anchored {
  position: absolute; right: 12px; bottom: 12px;
  padding: 5px 16px; border: 1px solid var(--rule); background: var(--paper-2); border-radius: 3px; color: var(--ink);
}
/* design-time selection: dashed frame and eight grab handles */
.selected { outline: 1px dashed var(--accent); outline-offset: 3px; }
.grip { position: absolute; width: 7px; height: 7px; background: var(--paper); border: 1px solid var(--accent); }
.grip.tl { top: -7px; left: -7px; } .grip.tc { top: -7px; left: calc(50% - 3.5px); } .grip.tr { top: -7px; right: -7px; }
.grip.ml { top: calc(50% - 3.5px); left: -7px; } .grip.mr { top: calc(50% - 3.5px); right: -7px; }
.grip.bl { bottom: -7px; left: -7px; } .grip.bc { bottom: -7px; left: calc(50% - 3.5px); } .grip.br { bottom: -7px; right: -7px; }
.form-grip { position: absolute; right: -5px; bottom: -5px; width: 9px; height: 9px; background: var(--paper); border: 1px solid var(--accent); }
.propchip {
  position: absolute; left: 0; bottom: -6px; display: grid; grid-template-columns: auto auto; gap: 0;
  font: 500 12px/1.2 var(--mono); background: var(--paper); border: 1px solid var(--rule); box-shadow: var(--shadow);
}
.propchip span { padding: 5px 9px; }
.propchip span:first-child { color: var(--ink-3); border-right: 1px solid var(--rule); }
.propchip b { color: var(--accent); font-weight: 600; }
@media (prefers-reduced-motion: reduce) { .form { animation: none; } }

/* ---- sections ----------------------------------------------------------- */
section { padding-block: clamp(40px, 7vw, 84px); border-top: 1px solid var(--rule); }
.section-head { display: grid; gap: 12px; margin-bottom: clamp(24px, 4vw, 40px); }
.section-head p { color: var(--ink-2); }

/* the story: three terminal steps, then the fix */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; counter-reset: step; }
.step { display: grid; gap: 10px; align-content: start; }
.step-label { display: flex; gap: 10px; align-items: baseline; font-weight: 600; }
.step-label::before { counter-increment: step; content: counter(step); font: 700 var(--step--1)/1 var(--mono); color: var(--accent); }
.term {
  margin: 0; background: var(--term-bg); color: var(--term-ink); border-radius: 6px; padding: 14px 16px;
  font: 400 12.5px/1.55 var(--mono); overflow-x: auto; white-space: pre;
}
.term .p { color: var(--term-dim); }
.term .err { color: var(--signal); }
.term .ok { color: #58d39a; }
.term .add { color: #58d39a; }
.term .del { color: var(--signal); }
.fix { margin-top: 24px; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 24px; align-items: center; }
.fix p { color: var(--ink-2); }
.fix .shot { border: 1px solid var(--rule); border-radius: 6px; box-shadow: var(--shadow); background: var(--paper); padding: 10px; justify-self: start; }
.fix figcaption { font-size: var(--step--1); color: var(--ink-3); margin-top: 8px; }

/* screenshots */
.shots { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.shots figure { margin: 0; display: grid; gap: 8px; }
.shots img { border: 1px solid var(--rule); border-radius: 6px; box-shadow: var(--shadow); background: var(--paper); }
.shots figcaption { font-size: var(--step--1); color: var(--ink-3); }

/* numbers: they are the point of this section */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border: 1px solid var(--rule); background: var(--paper); border-radius: 6px; }
.stat { padding: 18px 20px; display: grid; gap: 6px; align-content: start; }
.stat + .stat { border-left: 1px solid var(--rule); }
.stat .n { font: 800 var(--step-3)/1 var(--display); font-variation-settings: "wdth" 112; font-variant-numeric: tabular-nums; }
.stat .n small { font-size: .5em; color: var(--ink-3); font-weight: 600; }
.stat .l { font-size: var(--step--1); color: var(--ink-2); }

/* property grid: category rows, name | value */
.propgrid { width: 100%; border-collapse: collapse; background: var(--paper); border: 1px solid var(--rule); font-size: var(--step--1); }
.propgrid th[colspan] { text-align: left; background: var(--paper-2); font-weight: 700; padding: 6px 10px; border-top: 1px solid var(--rule); }
.propgrid th[colspan]::before { content: "▾ "; color: var(--ink-3); }
.propgrid td { padding: 6px 10px; border-top: 1px solid var(--rule); vertical-align: top; }
.propgrid td:first-child { width: 34%; font-family: var(--mono); font-size: .95em; border-right: 1px solid var(--rule); }
.table-scroll { overflow-x: auto; }
.status { font: 600 .8em/1 var(--mono); padding: 2px 6px; border-radius: 3px; white-space: nowrap; }
.status.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.status.no { color: var(--signal); background: color-mix(in srgb, var(--signal) 12%, transparent); }
.status.part { color: var(--warn); background: color-mix(in srgb, var(--warn) 14%, transparent); }
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; }

/* get started */
.start { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.codebox { display: grid; gap: 10px; align-content: start; }
.codebox .term { position: relative; }
.copy {
  justify-self: start; font: 600 var(--step--1)/1 var(--body); padding: 7px 12px; border-radius: 3px;
  border: 1px solid var(--rule); background: var(--paper); color: var(--ink); cursor: pointer;
}
.copy:hover { border-color: var(--accent); }

footer { border-top: 1px solid var(--rule); padding-block: 28px 40px; display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; font-size: var(--step--1); color: var(--ink-3); }
footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
footer a { color: var(--ink-2); }

@media (max-width: 860px) {
  .hero, .fix, .shots, .two, .start { grid-template-columns: minmax(0, 1fr); }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--rule); }
}
@media (max-width: 420px) {
  .stats { grid-template-columns: minmax(0, 1fr); }
  .stat + .stat { border-left: 0; border-top: 1px solid var(--rule); }
  .grid-mini th:nth-child(3), .grid-mini td:nth-child(3) { display: none; }
}

/* ---- documentation pages (build.mjs) ----------------------------------- */
.docs { display: grid; grid-template-columns: 220px minmax(0, 1fr) 200px; gap: 32px; align-items: start; padding-block: 12px 48px; }
.docs-nav { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 12px); font-size: var(--step--1); }
.docs-nav summary { font: 600 var(--step--1)/1.2 var(--mono); letter-spacing: .04em; color: var(--ink-3); cursor: pointer; list-style: none; padding-block: 6px; }
.docs-nav summary::-webkit-details-marker { display: none; }
.docs-nav ul, .toc ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.docs-nav a { display: block; padding: 6px 10px; border-radius: 4px; color: var(--ink-2); text-decoration: none; border-left: 2px solid transparent; }
.docs-nav a:hover { color: var(--accent); background: var(--paper); }
.docs-nav a[aria-current="page"] { color: var(--ink); background: var(--paper); border-left-color: var(--accent); font-weight: 600; }
.toc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 12px); font-size: .8rem; border-left: 1px solid var(--rule); padding-left: 14px; }
.toc a { color: var(--ink-3); text-decoration: none; display: block; padding: 3px 0; }
.toc a:hover { color: var(--accent); }

.prose { background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; padding: clamp(18px, 3vw, 40px); min-width: 0; }
.prose > * + * { margin-top: 1em; }
.prose h1 { font-size: var(--step-3); margin-bottom: .4em; }
.prose h2 { font-size: var(--step-2); margin-top: 1.8em; padding-top: .6em; border-top: 1px solid var(--rule); }
.prose h3 { font-size: var(--step-1); margin-top: 1.4em; }
.prose h1, .prose h2, .prose h3, .prose h4 { position: relative; scroll-margin-top: 16px; }
.prose .anchor { position: absolute; left: -1em; width: 1em; color: var(--ink-3); text-decoration: none; opacity: 0; font-weight: 400; }
.prose h1:hover .anchor, .prose h2:hover .anchor, .prose h3:hover .anchor, .prose .anchor:focus { opacity: 1; }
.prose p, .prose li { max-width: 78ch; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: .35em; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin-block: 2em; }
.prose hr + h2 { border-top: 0; padding-top: 0; margin-top: 0; }
.prose img { border: 1px solid var(--rule); border-radius: 6px; }
.prose blockquote { margin-inline: 0; padding: 8px 16px; border-left: 3px solid var(--accent); background: var(--accent-soft); border-radius: 0 4px 4px 0; }
.prose pre.code {
  margin: 0; background: var(--term-bg); color: var(--term-ink); border-radius: 6px; padding: 14px 16px;
  font: 400 13px/1.55 var(--mono); overflow-x: auto; white-space: pre;
}
.prose pre.code code { background: none; color: inherit; padding: 0; font-size: inherit; }
.prose .table-scroll { overflow-x: auto; }
.prose table { border-collapse: collapse; width: 100%; font-size: var(--step--1); }
.prose th, .prose td { border: 1px solid var(--rule); padding: 7px 10px; text-align: left; vertical-align: top; }
.prose th { background: var(--paper-2); font-weight: 700; }
.prose tr:nth-child(even) td { background: color-mix(in srgb, var(--paper-2) 50%, transparent); }
.prose td code, .prose th code { overflow-wrap: anywhere; }
.prose .edit { margin-top: 2.5em; font-size: var(--step--1); }
.docs-page footer { margin-top: 0; }
.docs-page .wrap { max-width: 1360px; }

@media (max-width: 1100px) {
  .docs { grid-template-columns: 200px minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 760px) {
  .docs { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .docs-nav { position: static; }
  .docs-nav details:not([open]) ul { display: none; }
  .prose .anchor { display: none; }
}
.prose p, .prose li, .prose h1, .prose h2, .prose h3, .prose h4 { overflow-wrap: anywhere; }
.prose td, .prose th { overflow-wrap: break-word; }