:root, :root[data-theme="dark"] {
  --bg: #1b1d21; --panel: #24272d; --line: #363a42; --text: #e6e4dc; --muted: #9a9890;
  --ok: #6fbf73; --bad: #e0705e; --lock: #f0a640; --accent: #5ea8d8; --pick: #5ea8d8;
  --viewer: #121316; --outline: #5a5e66; --on-accent: #0d1116;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f4f3ef; --panel: #ffffff; --line: #d6d4cc; --text: #22242a; --muted: #6b6a64;
  --ok: #2f8f3a; --bad: #c0442f; --lock: #d2781a; --accent: #1f6fa8; --pick: #1f6fa8;
  --viewer: #e4e2dc; --outline: #8a8d94; --on-accent: #ffffff;
  color-scheme: light;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body { margin: 0; display: flex; flex-direction: column; background: var(--bg); color: var(--text);
       font: 14px/1.4 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif; }
header { display: flex; align-items: baseline; gap: 16px; padding: 8px 16px; border-bottom: 1px solid var(--line); flex: 0 0 auto; }
header h1 { font-size: 17px; margin: 0; line-height: 1.1; }
header h1 small { display: block; font-size: 11px; font-weight: 400; color: var(--muted); letter-spacing: .02em; }
header h1 small a { color: inherit; text-decoration: none; }
header h1 small a:hover { color: var(--accent); }
header .muted { color: var(--muted); font-size: 12px; }
header nav { margin-left: auto; }
header nav a { color: var(--accent); text-decoration: none; font-size: 13px; margin-left: 14px; }
header nav a.here { color: var(--text); }
main.generator { display: grid; grid-template-columns: 360px 1fr; flex: 1 1 auto; min-height: 0; }
#controls { padding: 12px 16px; border-right: 1px solid var(--line); overflow-y: auto; overflow-x: hidden; }
#viewer { position: relative; background: var(--viewer); }
#viewer canvas { display: block; width: 100%; height: 100%; }
#hint { position: absolute; left: 10px; bottom: 8px; color: var(--muted); font-size: 12px; }
main.library { padding: 12px 16px; }
h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 14px 0 6px; }
label { display: block; color: var(--muted); font-size: 12px; margin-top: 8px; }
select, input[type=number], input[type=text] {
  width: 100%; padding: 6px 8px; margin-top: 3px; background: var(--panel); color: var(--text);
  border: 1px solid var(--line); border-radius: 4px; font: inherit; }
.row { display: flex; gap: 8px; }
.row > * { flex: 1; }
button { padding: 7px 10px; margin-top: 8px; background: var(--panel); color: var(--text);
         border: 1px solid var(--line); border-radius: 4px; font: inherit; cursor: pointer; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); font-weight: 600; }
button:disabled { opacity: .45; cursor: default; }
button.small { padding: 3px 8px; margin: 0; font-size: 12px; }
button.wide { width: 100%; }
button.danger { color: var(--bad); }
button.danger[data-armed="yes"] { background: var(--bad); color: var(--on-accent); border-color: var(--bad); }
.seedrow { margin-top: 3px; align-items: stretch; }
.seedrow input { margin-top: 0; }
.seedrow button.icon { flex: 0 0 40px; margin: 0; padding: 0; display: flex; align-items: center; justify-content: center; }
.seedrow button.icon svg { width: 20px; height: 20px; fill: var(--text); }
#customsize label { margin-top: 4px; }
#features { list-style: none; padding: 0; margin: 0; }
#features li { display: flex; align-items: center; gap: 8px; padding: 4px 6px; border-radius: 4px; cursor: pointer; }
#features li:hover { background: var(--panel); }
#features li.locked { color: var(--lock); }
#features li.picked { background: var(--panel); box-shadow: inset 0 0 0 1px var(--pick); }
#features li .kind { font-weight: 600; min-width: 84px; }
#features li .desc { color: var(--muted); font-size: 12px; }
#checks { list-style: none; padding: 0; margin: 0; }
#checks li { padding: 3px 0; font-size: 12px; }
#checks li.ok::before { content: "ok  "; color: var(--ok); font-weight: 700; }
#checks li.bad::before { content: "fail  "; color: var(--bad); font-weight: 700; }
#status { min-height: 20px; margin-top: 8px; color: var(--muted); font-size: 12px; }
#status.bad { color: var(--bad); }
#status a { color: var(--accent); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; }
td select { width: auto; margin: 0; padding: 3px 6px; }
td a { color: var(--accent); text-decoration: none; }
td .files { color: var(--muted); font-size: 12px; }
td.notes { color: var(--muted); font-size: 12px; max-width: 260px; }
.retired td { opacity: .5; }

details#elementbox { margin: 12px 0 4px; border: 1px solid var(--line); border-radius: 4px; padding: 6px 10px; }
details#elementbox summary { cursor: pointer; font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
details#elementbox summary .muted { text-transform: none; letter-spacing: 0; font-size: 12px; }
details#elementbox .row { margin: 6px 0 2px; }
.group { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; margin: 8px 0 2px; }
.elements { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 10px; }
.elements label { display: flex; align-items: center; gap: 6px; margin: 0; min-width: 0; color: var(--text); font-size: 13px; white-space: nowrap; }
.elements input { margin: 0; flex: 0 0 auto; }
.small { font-size: 11px; margin-top: 6px; }
.options { margin-top: 8px; }
.options label { display: flex; align-items: center; gap: 6px; color: var(--text); font-size: 13px; margin: 4px 0 0; }
.options input { margin: 0; }
main.login { max-width: 320px; margin: 80px auto; padding: 0 16px; }
main.login label { margin-top: 0; }
main.login #status { min-height: 20px; margin-top: 8px; font-size: 12px; }
main.login #status.bad { color: var(--bad); }
header nav a#signout { color: var(--muted); }

/* theme button, top right */
header nav { display: flex; align-items: center; }
header nav button.theme { flex: 0 0 auto; width: 28px; height: 28px; margin: 0 0 0 14px; padding: 0;
  display: inline-flex; align-items: center; justify-content: center; border-radius: 14px; }
header nav button.theme svg { width: 16px; height: 16px; fill: var(--text); }
:root[data-theme="dark"] header nav button.theme .moon { display: none; }
:root[data-theme="light"] header nav button.theme .sun, :root[data-theme="light"] header nav button.theme .rays { display: none; }

/* progress while a design is built */
#progress { position: absolute; left: 0; right: 0; top: 0; height: 3px; background: color-mix(in srgb, var(--accent) 20%, transparent); }
#progress .bar { height: 100%; width: 0; background: var(--accent); transition: width .25s linear; }
#progress.done .bar { width: 100% !important; transition: width .15s ease-out; }
#busy { position: absolute; left: 10px; top: 10px; padding: 4px 8px; border-radius: 4px; font-size: 12px;
  background: var(--panel); color: var(--text); border: 1px solid var(--line); }
#busy .time { color: var(--muted); font-variant-numeric: tabular-nums; }
#viewer canvas.picking { cursor: pointer; }

/* editing the picked feature */
#editbox { margin: 8px 0 4px; padding: 8px 10px; border: 1px solid var(--pick); border-radius: 4px; background: var(--panel); }
#editbox .editkind { align-items: baseline; gap: 8px; }
#editbox .editkind .kind { font-weight: 600; flex: 0 0 auto; }
#editbox .editkind .desc { color: var(--muted); font-size: 12px; }
#editbox label { margin-top: 4px; }
#editbox label .value { display: block; margin-top: 7px; color: var(--text); font-size: 13px; }
#editbox #editnote { font-size: 11px; margin-top: 6px; }
#editbox .row:last-child { margin-top: 6px; justify-content: flex-end; }
#editbox .row:last-child > * { flex: 0 0 auto; }
.addrow { margin-top: 8px; align-items: stretch; }
.addrow select { margin-top: 0; }
.addrow button { flex: 0 0 auto; margin: 0; padding: 0 14px; }

/* the landing page */
main.home { width: 100%; max-width: 880px; margin: 0 auto; padding: 24px 16px 48px; }
main.home h2 { font-size: 13px; }
main.home .intro h2 { font-size: 26px; text-transform: none; letter-spacing: 0; color: var(--text); margin: 8px 0 6px; }
main.home .lead { font-size: 16px; color: var(--muted); max-width: 640px; margin: 0 0 28px; }
main.home .steps ol { list-style: none; counter-reset: step; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
main.home .steps li { counter-increment: step; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 12px 14px 14px; }
main.home .steps li::before { content: counter(step); display: inline-block; width: 22px; height: 22px; line-height: 22px; text-align: center; border-radius: 11px; background: var(--accent); color: var(--on-accent); font-weight: 700; font-size: 12px; margin-bottom: 8px; }
main.home .steps strong { display: block; margin-bottom: 4px; }
main.home .steps span { color: var(--muted); font-size: 13px; }
main.home .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
main.home .card { display: flex; flex-direction: column; gap: 6px; padding: 14px 16px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; color: var(--text); text-decoration: none; }
main.home a.card:hover { border-color: var(--accent); }
main.home .card .name { font-size: 17px; font-weight: 600; }
main.home .card .blurb { color: var(--muted); font-size: 13px; flex: 1; }
main.home .card .sizes { color: var(--muted); font-size: 12px; }
main.home .card .go { color: var(--accent); font-size: 13px; font-weight: 600; margin-top: 4px; }
main.home .card.soon { opacity: .6; }

/* the editor */
main.editor .what { font-size: 13px; color: var(--text); }
main.editor #features li { cursor: pointer; }
main.editor p.small a { color: var(--accent); text-decoration: none; }
#edit { margin-top: 6px; }
#busy.bad { color: var(--bad); border-color: var(--bad); max-width: 60%; }
#report { list-style: none; padding: 0; margin: 0; }
#report li { padding: 3px 0; font-size: 12px; color: var(--muted); }
#report li.warn { color: var(--lock); }

/* who is signed in */
header nav .user { color: var(--muted); font-size: 13px; margin-left: 14px; }
header nav .user a { margin-left: 8px; }
/* the watermark for signed-out visitors */
#watermark { position: absolute; inset: 0; pointer-events: none; background-repeat: repeat; mix-blend-mode: overlay; }
#watermark .note { position: absolute; right: 10px; top: 10px; padding: 4px 8px; border-radius: 4px; font-size: 12px;
  background: var(--panel); color: var(--text); border: 1px solid var(--line); mix-blend-mode: normal; }
:root[data-theme="light"] #watermark { mix-blend-mode: multiply; filter: invert(1); }
:root[data-theme="light"] #watermark .note { filter: invert(1); }
/* buying */
dialog#buydialog { border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text); padding: 0; max-width: 520px; width: calc(100% - 32px); }
dialog#buydialog::backdrop { background: rgba(0, 0, 0, .5); }
dialog#buydialog form { padding: 16px 18px; }
dialog#buydialog h2 { margin: 0 0 6px; color: var(--text); text-transform: none; letter-spacing: 0; font-size: 16px; }
dialog#buydialog .choice { display: flex; gap: 10px; align-items: flex-start; padding: 8px 10px; margin: 6px 0; border: 1px solid var(--line); border-radius: 6px; color: var(--text); font-size: 13px; cursor: pointer; }
dialog#buydialog .choice:has(input:checked) { border-color: var(--accent); }
dialog#buydialog .choice input { margin-top: 3px; }
dialog#buydialog .choice em { display: block; color: var(--muted); font-style: normal; font-size: 12px; }
dialog#buydialog .choice small { display: block; color: var(--accent); font-size: 12px; margin-top: 2px; }
dialog#buydialog textarea { width: 100%; margin-top: 3px; background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 4px; font: inherit; padding: 6px 8px; }
dialog#buydialog .row { justify-content: flex-end; margin-top: 10px; }
dialog#buydialog .row > * { flex: 0 0 auto; }
td.orders .order { font-size: 12px; color: var(--muted); }
td.orders .order.accepted, td.orders .order.in-progress { color: var(--accent); }
td.orders .order.done { color: var(--ok); }
td.orders .order.cancelled { text-decoration: line-through; }
/* admin */
main.admin { padding: 12px 16px; }
main.admin section { margin-bottom: 28px; }
main.admin .settings { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 8px 16px; max-width: 980px; }
main.admin .settings label { margin: 0; }
main.admin .options { margin-top: 10px; }
main.admin table input[type=number], main.admin table input[type=text] { width: auto; margin: 0; padding: 3px 6px; }
main.admin td.est { font-size: 12px; color: var(--muted); }