/* Carvio site stylesheet. Colours come from the app's theme (src/ui/theme.nim): the same
   blue accent, greys, danger and success, in a light and a dark theme. */

:root {
  --bg: #E9EBEF;          /* windowBg */
  --preview-bg: #E9EBEF;  /* the box behind Carvio file previews (windowBg, what project previews bake in) */
  --tool-body: #F1F3F6;   /* the drawn tool in .carviotools cards: steel body and its edge */
  --tool-edge: #2B2F35;
  --panel: #F8F9FB;       /* panelBg */
  --panel-border: #D3D7DD;
  --header-bg: #E2E5EA;
  --text: #1F2328;
  --muted: #667085;
  --disabled: #A0A6B0;
  --accent: #2D7FE0;
  --accent-hover: #4A91E8;
  --accent-active: #1F67BF;
  --accent-text: #fff;
  --control-bg: #fff;
  --control-border: #C4C9D1;
  --hover-bg: #E4E9F0;
  --selection: #CFE2F9;
  --danger: #D9453B;
  --success: #2FA84B;
  --wood: #D9A868;        /* the icon's stock */
  --wood-dark: #B8803E;
  --chip: #F0922B;        /* the icon's chips */
  --shadow: 0 8px 28px rgba(16, 24, 40, .12);
  --radius: 6px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "DejaVu Sans Mono", monospace;
  --wrap: 1120px;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #1E2126; --panel: #272B31; --panel-border: #3A3F47; --header-bg: #2F343B;
    --tool-body: #C9CED6; --tool-edge: #14161A;   /* a light steel silhouette on the dark card */
    --preview-bg: #1B1E23;
  --text: #E6E8EB; --muted: #9AA3AF; --disabled: #5F6773;
  --accent: #3B8BEA; --accent-hover: #5A9FF0; --accent-active: #2B74CC;
  --control-bg: #1B1E23; --control-border: #474D56; --hover-bg: #343A42; --selection: #2E4A6E;
  --danger: #E0564C; --success: #3DBF5B;
  --shadow: 0 8px 28px rgba(0, 0, 0, .5);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1E2126; --panel: #272B31; --panel-border: #3A3F47; --header-bg: #2F343B;
    --tool-body: #C9CED6; --tool-edge: #14161A;   /* a light steel silhouette on the dark card */
    --preview-bg: #1B1E23;
    --text: #E6E8EB; --muted: #9AA3AF; --disabled: #5F6773;
    --accent: #3B8BEA; --accent-hover: #5A9FF0; --accent-active: #2B74CC;
    --control-bg: #1B1E23; --control-border: #474D56; --hover-bg: #343A42; --selection: #2E4A6E;
    --danger: #E0564C; --success: #3DBF5B;
    --shadow: 0 8px 28px rgba(0, 0, 0, .5);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.55 var(--font); color: var(--text); background: var(--bg); min-height: 100vh; display: flex; flex-direction: column; }
.site-main { flex: 1; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }
img { max-width: 100%; height: auto; }   /* height: auto, or the height attribute stays when the width shrinks */
svg { max-width: 100%; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; font-weight: 650; letter-spacing: -.01em; }
h1 { font-size: 2rem; } h2 { font-size: 1.5rem; } h3 { font-size: 1.2rem; } h4 { font-size: 1rem; }
p { margin: 0 0 1em; }
code, pre, kbd { font-family: var(--mono); font-size: .92em; }
code { background: var(--hover-bg); padding: .1em .35em; border-radius: 4px; }
pre { background: var(--control-bg); border: 1px solid var(--panel-border); border-radius: var(--radius); padding: .8em 1em; overflow: auto; }
pre code { background: none; padding: 0; }
kbd { border: 1px solid var(--control-border); border-bottom-width: 2px; border-radius: 4px; padding: 0 .35em; background: var(--control-bg); }
hr { border: 0; border-top: 1px solid var(--panel-border); margin: 1.5em 0; }
table { border-collapse: collapse; width: 100%; margin: 0 0 1em; }
th, td { text-align: left; padding: .45em .6em; border-bottom: 1px solid var(--panel-border); vertical-align: top; }
th { font-weight: 600; background: var(--header-bg); }
blockquote { margin: 0 0 1em; padding: .6em 1em; border-left: 4px solid var(--accent); background: var(--hover-bg); border-radius: 0 var(--radius) var(--radius) 0; }
blockquote p:last-child { margin: 0; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
.inline { display: inline; }
.right { text-align: right; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.spread { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.grid-2 { display: grid; gap: 24px; grid-template-columns: 1fr 1fr; }
.grid-3 { display: grid; gap: 24px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 760px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* Header */
.site-header { background: var(--panel); border-bottom: 1px solid var(--panel-border); position: sticky; top: 0; z-index: 20; }
.site-header .wrap { display: flex; align-items: center; gap: 20px; height: 58px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.2rem; color: var(--text); }
.brand:hover { text-decoration: none; color: var(--accent); }
.brand img { border-radius: 7px; }
.brand-sm { font-size: 1rem; margin-bottom: .5em; }
.site-nav { display: flex; gap: 4px; flex: 1; }
.site-nav a { padding: 6px 12px; border-radius: var(--radius); color: var(--text); font-weight: 500; }
.site-nav a:hover { background: var(--hover-bg); text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--accent); background: var(--selection); }
.site-user { display: flex; align-items: center; gap: 8px; }
.user-link { font-weight: 600; color: var(--text); }
.theme-toggle { background: none; border: 0; color: var(--muted); cursor: pointer; padding: 6px; border-radius: var(--radius); display: inline-flex; }
.theme-toggle:hover { background: var(--hover-bg); color: var(--text); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; margin-left: auto; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; border-radius: 2px; }
@media (max-width: 760px) {
  .site-header .wrap { flex-wrap: wrap; height: auto; padding-top: 10px; padding-bottom: 10px; }
  .nav-toggle { display: block; }
  .site-nav, .site-user { display: none; width: 100%; flex-direction: column; align-items: stretch; }
  body.nav-open .site-nav, body.nav-open .site-user { display: flex; }
  .site-user { flex-direction: row; justify-content: flex-end; }
}

/* Flashes */
.flash { padding: 10px 0; font-weight: 500; }
.flash-info { background: var(--selection); }
.flash-success { background: color-mix(in srgb, var(--success) 18%, var(--panel)); }
.flash-error { background: color-mix(in srgb, var(--danger) 18%, var(--panel)); }

/* Buttons and forms */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 9px 18px; border-radius: var(--radius); border: 1px solid var(--control-border); background: var(--control-bg); color: var(--text); font: inherit; font-weight: 600; cursor: pointer; line-height: 1.2; text-decoration: none; }
.btn:hover { background: var(--hover-bg); text-decoration: none; color: var(--text); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
.btn-primary:active { background: var(--accent-active); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: .9rem; }
.btn-lg { padding: 13px 26px; font-size: 1.1rem; }
.btn[disabled], .btn.disabled { opacity: .55; pointer-events: none; }
label { display: block; font-weight: 600; margin-bottom: .3em; }
.field { margin-bottom: 1em; }
.field .hint { color: var(--muted); font-size: .88rem; margin-top: .25em; }
input[type="text"], input[type="email"], input[type="password"], input[type="number"], input[type="search"], input[type="url"], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--control-border); border-radius: var(--radius); background: var(--control-bg); color: var(--text); font: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
textarea { min-height: 140px; resize: vertical; }
input[type="checkbox"], input[type="radio"] { accent-color: var(--accent); }
.check { display: flex; gap: 8px; align-items: center; font-weight: 400; }
.form-narrow { max-width: 440px; }
.form-wide { max-width: 760px; }

/* Cards, panels, pages */
.page { padding: 32px 0 56px; }
.page-head { margin-bottom: 24px; }
.page-head p { color: var(--muted); max-width: 70ch; }
.card { background: var(--panel); border: 1px solid var(--panel-border); border-radius: 10px; padding: 20px; }
.card h3 { margin-top: 0; }
.card-link { display: block; color: inherit; }
.card-link:hover { text-decoration: none; border-color: var(--accent); box-shadow: var(--shadow); }
.panel { background: var(--panel); border: 1px solid var(--panel-border); border-radius: 10px; }
.panel-head { padding: 12px 16px; border-bottom: 1px solid var(--panel-border); background: var(--header-bg); border-radius: 10px 10px 0 0; font-weight: 600; }
.panel-body { padding: 16px; }
.badge { display: inline-block; font-size: .75rem; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--hover-bg); color: var(--muted); vertical-align: middle; }
.badge-accent { background: var(--selection); color: var(--accent); }
.badge-success { background: color-mix(in srgb, var(--success) 20%, transparent); color: var(--success); }
.badge-danger { background: color-mix(in srgb, var(--danger) 20%, transparent); color: var(--danger); }
.badge-wood { background: color-mix(in srgb, var(--wood) 35%, transparent); color: var(--wood-dark); }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; flex: none; }
.breadcrumbs { font-size: .9rem; color: var(--muted); margin-bottom: 12px; }
.breadcrumbs a { color: var(--muted); }
.pager { display: flex; gap: 6px; margin: 20px 0; flex-wrap: wrap; }
.pager a, .pager span { padding: 5px 11px; border: 1px solid var(--control-border); border-radius: var(--radius); }
.pager span.current { background: var(--accent); color: #fff; border-color: var(--accent); }
.empty { text-align: center; color: var(--muted); padding: 40px 16px; }
.two-col { display: grid; grid-template-columns: 260px 1fr; gap: 32px; }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; } }
.two-col > * { min-width: 0; }
/* On phones a wide table scrolls sideways inside its box instead of widening the page. */
.table-scroll { overflow-x: auto; max-width: 100%; }
@media (max-width: 760px) { table { display: block; overflow-x: auto; max-width: 100%; } }
.sidebar-nav a { display: block; padding: 5px 10px; border-radius: var(--radius); color: var(--text); }
.sidebar-nav a:hover { background: var(--hover-bg); text-decoration: none; }
.sidebar-nav a[aria-current="page"] { background: var(--selection); color: var(--accent); font-weight: 600; }
.prose { max-width: 78ch; }
.prose img { border-radius: var(--radius); }
.notice { padding: 12px 16px; border-radius: var(--radius); background: var(--selection); margin-bottom: 1em; }
.notice-warn { background: color-mix(in srgb, var(--chip) 22%, var(--panel)); }
.notice-danger { background: color-mix(in srgb, var(--danger) 18%, var(--panel)); }

/* Footer */
.site-footer { border-top: 1px solid var(--panel-border); background: var(--panel); padding: 36px 0 24px; margin-top: 40px; color: var(--muted); }
.footer-cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 24px; margin-bottom: 20px; }
.footer-cols h4 { margin-bottom: .4em; color: var(--text); }
.footer-cols a { display: block; color: var(--muted); padding: 2px 0; }
.footer-cols a:hover { color: var(--accent); }
@media (max-width: 760px) { .footer-cols { grid-template-columns: 1fr 1fr; } }

/* Administration > Forum sections */
table.sections td { vertical-align: top; }
table.sections input, table.sections textarea, table.sections select { width: 100%; min-width: 120px; }
table.sections select { min-width: 150px; }
table.sections .section-slug input { min-width: 90px; }
table.sections textarea { min-width: 180px; resize: vertical; }
table.sections .section-order form { display: flex; flex-direction: column; gap: 4px; }
table.sections .section-actions .row { gap: 6px; }
table.sections tr.section-hidden td { opacity: .7; }

/* Carvio file previews: a themed box; clip silhouettes (dark ink on a clear background) are
   inverted on the dark theme, as the app draws clipart in the text colour. */
.preview-box { background: var(--preview-bg); }
.preview-box.is-ink img { transition: filter .15s; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .preview-box.is-ink img { filter: invert(.88) hue-rotate(180deg); } }
:root[data-theme="dark"] .preview-box.is-ink img { filter: invert(.88) hue-rotate(180deg); }
[data-lightbox] { cursor: zoom-in; }
.lightbox { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 24px; background: rgba(0, 0, 0, .55); }
.lightbox-box { position: relative; max-width: min(92vw, 1100px); max-height: 90vh; border-radius: 12px; border: 1px solid var(--panel-border); box-shadow: var(--shadow); padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.lightbox-box img { display: block; max-width: 100%; max-height: calc(90vh - 70px); width: auto; height: auto; min-width: min(512px, 80vw); margin: auto; object-fit: contain; }
.lightbox-caption { color: var(--text); font-size: .9rem; text-align: center; }
.lightbox-close { position: absolute; top: 8px; right: 8px; width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--panel-border); background: var(--panel); color: var(--text); font-size: 18px; line-height: 1; cursor: pointer; }
.lightbox-close:hover { background: var(--hover-bg); }

/* Tool drawings (.carviotools cards; assets/js/tool-viewer.js), on forum posts and store listings */
.ctv-bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 10px; }
.ctv-switch { display: inline-flex; gap: 4px; }
.ctv-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
.ctv-card { display: flex; flex-wrap: wrap; min-width: 0; gap: 14px; padding: 14px; align-items: flex-start; transition: border-color .15s, box-shadow .15s; }
.ctv-card.is-hot { border-color: var(--accent); box-shadow: var(--shadow); }
.ctv-drawing { flex: 0 1 auto; min-width: 0; max-width: 100%; overflow: auto; }
.ctv-svg { display: block; font: 11px var(--font); color: var(--text); max-width: none; }
.ctv-body { fill: var(--tool-body); stroke: var(--tool-edge); stroke-width: 1.2; stroke-linejoin: round; }
.ctv-part { fill: transparent; stroke: none; transition: fill .15s; }
.ctv-cut { fill: color-mix(in srgb, var(--accent) 35%, transparent); stroke: var(--accent); stroke-width: 1.2; stroke-linejoin: round; }
.ctv-shank { fill: color-mix(in srgb, var(--tool-edge) 12%, transparent); }
.ctv-neck { fill: color-mix(in srgb, var(--tool-edge) 6%, transparent); }
.ctv-svg[data-hot="cut"] .ctv-cut { fill: color-mix(in srgb, var(--accent) 60%, transparent); }
.ctv-svg[data-hot="shank"] .ctv-shank { fill: color-mix(in srgb, var(--accent) 30%, transparent); }
.ctv-svg[data-hot="neck"] .ctv-neck { fill: color-mix(in srgb, var(--accent) 30%, transparent); }
.ctv-flutes path { fill: none; stroke: var(--accent); stroke-width: .9; opacity: .7; pointer-events: none; }
.ctv-axis { stroke: var(--muted); stroke-width: .6; stroke-dasharray: 5 3 1 3; opacity: .7; }
.ctv-dim line { stroke: var(--muted); stroke-width: .8; }
.ctv-dim text { fill: var(--muted); font-size: 10.5px; }
.ctv-dim[data-part] { transition: opacity .15s; }
.ctv-svg[data-hot="cut"] .ctv-dim[data-part="cut"] line, .ctv-svg[data-hot="shank"] .ctv-dim[data-part="shank"] line, .ctv-svg[data-hot="neck"] .ctv-dim[data-part="neck"] line { stroke: var(--accent); stroke-width: 1.2; }
.ctv-svg[data-hot="cut"] .ctv-dim[data-part="cut"] text, .ctv-svg[data-hot="shank"] .ctv-dim[data-part="shank"] text, .ctv-svg[data-hot="neck"] .ctv-dim[data-part="neck"] text { fill: var(--accent); font-weight: 600; }
.ctv-angle { fill: var(--muted); font-size: 10.5px; }
.ctv-info { flex: 1 1 200px; min-width: 0; font-size: .92rem; }
.ctv-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.ctv-name { font-size: 1rem; }
.ctv-summary { margin: 2px 0 8px; }
.ctv-dl { display: grid; grid-template-columns: auto 1fr; gap: 1px 12px; margin: 0 0 8px; }
.ctv-dl dt { color: var(--muted); }
.ctv-dl dd { margin: 0; }
.ctv-rates { margin: 4px 0 8px; display: block; overflow-x: auto; max-width: 100%; }
.ctv-rates th, .ctv-rates td { padding: 2px 6px; }
.ctv-notes { color: var(--muted); margin: 0; }
.ctv-caption { margin-top: 4px; text-align: center; }
@media (max-width: 560px) { .ctv-grid { grid-template-columns: 1fr; } }