:root {
  --bg: #faf7f2;
  --card: #ffffff;
  --ink: #2b2622;
  --muted: #7a6f66;
  --line: #e7dfd5;
  --accent: #8a4f7d;
  --accent-ink: #ffffff;
  --ok: #2f7a4d;
  --ok-bg: #e5f3ea;
  --warn: #8a5a00;
  --warn-bg: #fdf1d8;
  --danger: #b3261e;
  --radius: 12px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
img { max-width: 100%; display: block; }
h1 { font-size: 1.6rem; margin: .3rem 0 1rem; line-height: 1.2; }
h2 { font-size: 1.2rem; margin: 0 0 .75rem; }
h3 { font-size: 1.05rem; margin: .75rem 0 .25rem; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .75rem 1rem; background: var(--card); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; color: var(--ink); text-decoration: none; font-size: 1.1rem; }
.topbar nav a { text-decoration: none; }
.container { max-width: 980px; margin: 0 auto; padding: 1rem; }
.footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 2rem 1rem; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem; margin: 0 0 1rem;
}
details.card > summary { cursor: pointer; font-weight: 600; }
details.card[open] > summary { margin-bottom: .75rem; }
.lead { font-size: 1.05rem; color: var(--muted); }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: .88rem; margin: .25rem 0 .75rem; }
.crumbs { margin: 0; font-size: .9rem; color: var(--muted); }
.crumbs a { color: var(--muted); }
.empty { text-align: center; padding: 2rem 0; }
.notice { background: var(--warn-bg); color: var(--warn); padding: .75rem 1rem; border-radius: var(--radius); }

label { display: block; font-weight: 600; margin: .75rem 0 .3rem; }
label.check { font-weight: 400; display: flex; gap: .5rem; align-items: center; }
input, select, textarea {
  width: 100%; font: inherit; padding: .6rem .7rem; border: 1px solid #cfc4b8;
  border-radius: 8px; background: #fff; color: var(--ink);
}
input[type=checkbox] { width: auto; }
input[type=file] { padding: .45rem; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
fieldset { border: 0; padding: 0; margin: .75rem 0 0; }
legend { font-weight: 600; padding: 0; }
.dims-row { display: flex; align-items: flex-end; gap: .5rem; }
.dims-row > div { flex: 1; }
.times { padding-bottom: .6rem; color: var(--muted); }
details.more { margin: .75rem 0 1rem; }
details.more > summary { cursor: pointer; color: var(--accent); }

.row { display: flex; gap: .5rem; flex-wrap: wrap; }
.row > input { flex: 1 1 14rem; }
.form-inline label { margin-top: 0; }

.btn {
  display: inline-block; font: inherit; font-weight: 600; text-decoration: none;
  padding: .6rem 1rem; border-radius: 8px; border: 1px solid #cfc4b8;
  background: #fff; color: var(--ink); cursor: pointer; min-height: 44px;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.danger { color: var(--danger); border-color: #e3b5b1; }
.btn.subtle { background: transparent; }
.btn:hover { filter: brightness(.96); }
.fabric-form > .btn.primary { margin-top: 1rem; width: 100%; }

.error { color: var(--danger); font-size: .9rem; margin: .3rem 0; }

.stages { display: flex; flex-wrap: wrap; gap: .35rem; list-style: none; padding: 0; margin: 0 0 1rem; counter-reset: s; }
.stages li {
  counter-increment: s; padding: .3rem .7rem; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line); font-size: .85rem;
}
.stages li::before { content: counter(s) ". "; color: var(--muted); }
.stages li.current { background: var(--accent); border-color: var(--accent); }
.stages li.current, .stages li.current a, .stages li.current::before { color: #fff; }
.stages li.future { color: var(--muted); }
.stages a { text-decoration: none; }

.project-list, .fabric-grid, .thumb-strip, .photo-manage, .facts { list-style: none; padding: 0; margin: 0; }
.project-item { display: flex; flex-direction: column; gap: .2rem; }
.project-item a { font-size: 1.05rem; text-decoration: none; }

.fabric-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; margin-bottom: 1rem; }
.fabric-card { margin: 0; display: flex; flex-direction: column; }
.fabric-card .photos { display: grid; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: .4rem; }
.fabric-card .photos a:first-child { grid-column: 1 / -1; }
.fabric-card .photos img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; background: #eee; }
.fabric-card .photos a:first-child img { aspect-ratio: 16 / 10; }
.fabric-card .size { margin: 0 0 .4rem; font-weight: 600; }
.fabric-card .facts li { font-size: .9rem; margin: .15rem 0; }
.fabric-card .notes { font-size: .9rem; color: var(--muted); white-space: pre-line; }
.fabric-card .actions { margin-top: auto; padding-top: .75rem; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.actions form { margin: 0; }
.code {
  display: inline-block; font-size: .8em; font-weight: 700; background: var(--ink); color: #fff;
  border-radius: 6px; padding: 0 .4em; vertical-align: .1em;
}
.badge {
  display: inline-block; font-size: .78rem; padding: .05rem .5rem; border-radius: 999px;
  background: #eee; color: var(--muted);
}
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.no-photo {
  display: grid; place-items: center; aspect-ratio: 4 / 3; background: #f0ebe4;
  color: var(--muted); border-radius: 8px; font-size: .85rem;
}

.thumb-strip { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: .75rem; margin-bottom: .75rem; }
.thumb-strip img, .thumb-strip .no-photo { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; }
.thumb-strip span { font-size: .9rem; display: block; margin-top: .3rem; }

.photo-manage { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: .75rem; margin-bottom: 1rem; }
.photo-manage img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 8px; }
.photo-manage form { margin-top: .3rem; }

.preview { display: flex; gap: .4rem; flex-wrap: wrap; }
.preview img { width: 72px; height: 72px; object-fit: cover; border-radius: 6px; }

@media (min-width: 640px) {
  .fabric-grid { grid-template-columns: repeat(2, 1fr); }
  .fabric-form > .btn.primary { width: auto; }
}
@media (min-width: 900px) {
  .fabric-grid { grid-template-columns: repeat(3, 1fr); }
  h1 { font-size: 1.9rem; }
}

/* --- M2: вкладки и расчёт --- */
.tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--line); margin: 0 0 1rem; overflow-x: auto; }
.tabs a {
  padding: .55rem .9rem; text-decoration: none; color: var(--muted); font-weight: 600;
  border-bottom: 3px solid transparent; white-space: nowrap;
}
.tabs a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.tabs small { font-weight: 400; color: var(--muted); }
.small { font-size: .85rem; }
.linklike { background: none; border: 0; padding: 0; font: inherit; color: var(--accent); text-decoration: underline; cursor: pointer; }
form.demo { margin: -.25rem 0 1rem; }

.summary { border-left: 6px solid var(--line); }
.summary.ok { border-left-color: var(--ok); }
.summary.warn { border-left-color: #d79b1c; }
.summary.bad { border-left-color: var(--danger); }
.summary h2 { font-size: 1.35rem; margin: .2rem 0 .4rem; }
.status-ok { color: var(--ok); } .status-warn { color: var(--warn); } .status-bad { color: var(--danger); }
.rev-line { margin: 0; font-size: .85rem; }
.big-number b { font-size: 1.6rem; }
.warnings { padding-left: 1.2rem; color: var(--warn); }

.chip {
  display: inline-block; font-size: .78rem; font-weight: 600; padding: .1rem .55rem;
  border-radius: 999px; background: #eee; color: var(--muted); white-space: nowrap;
}
.chip.ok { background: var(--ok-bg); color: var(--ok); }
.chip.warn { background: var(--warn-bg); color: var(--warn); }
.chip.bad { background: #fbe3e1; color: var(--danger); }
.checks { list-style: none; padding: 0; margin: 0 0 1rem; }
.check { display: grid; grid-template-columns: 9.5rem 1fr; gap: .6rem; padding: .55rem 0; border-top: 1px solid var(--line); }
.check:first-child { border-top: 0; }
.check .chip { justify-self: start; align-self: start; margin-top: .15rem; }
.issues { margin: .3rem 0 0; padding-left: 1.1rem; font-size: .9rem; color: var(--danger); }
@media (max-width: 520px) { .check { grid-template-columns: 1fr; gap: .2rem; } }

.layout { margin: 1rem 0 1.5rem; }
.layout figcaption { margin-bottom: .5rem; }
.svg-wrap { max-width: 520px; }
.svg-wrap svg { width: 100%; height: auto; display: block; }
.svg-wrap .cloth { fill: #f4efe8; stroke: #8a7d70; stroke-width: 2; }
.svg-wrap .cloth.conditional { stroke-dasharray: 10 6; }
.svg-wrap .piece { stroke: #4a3f37; stroke-width: 1.5; }
.svg-wrap text { fill: #2b2622; font-family: system-ui, sans-serif; }
.table-wrap { overflow-x: auto; margin-top: .5rem; }
table { border-collapse: collapse; font-size: .88rem; min-width: 100%; }
th, td { text-align: left; padding: .3rem .6rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
pre.json { max-height: 24rem; overflow: auto; background: #f6f2ec; padding: .75rem; border-radius: 8px; font-size: .8rem; }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: .85rem; }
.revisions { list-style: none; padding: 0; margin: 0 0 .75rem; }
.revisions li { padding: .3rem 0; }
.revisions li.active a { font-weight: 700; color: var(--ink); }
.diff { font-size: .85rem; padding-left: 1.1rem; }

/* --- M3: AI-путь --- */
.stages li.done { background: var(--ok-bg); border-color: #bfe0cb; }
.stages li.done a { color: var(--ok); }
.stages li a { color: inherit; }
.section-title { margin-top: 1.5rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.ai-bridge { border-style: dashed; }
.bridge-steps { padding-left: 1.2rem; margin: 0; }
.bridge-steps > li { margin-bottom: 1rem; }
.prompt-box { margin-top: .5rem; }
textarea.prompt { background: #f6f2ec; font-size: .8rem; margin-bottom: .4rem; }
.photo-hints { padding-left: 1.1rem; font-size: .9rem; }
.photo-hints a { margin-left: .2rem; }
.idea-grid, .design-grid { list-style: none; padding: 0; margin: 0 0 1rem; display: grid; gap: 1rem; grid-template-columns: 1fr; }
.idea-card, .design-card { margin: 0; display: flex; flex-direction: column; }
.idea-card h3, .design-card h3 { margin-top: 0; }
.idea-card .actions, .design-card .actions { margin-top: auto; padding-top: .5rem; }
.is-chosen { border: 2px solid var(--accent); }
.chosen-banner { border-left: 6px solid var(--accent); }
.design-image img, .design-image .no-photo { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; }
.design-card details { margin: .4rem 0; }
.reference-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; align-items: start; }
.reference-grid img { width: 100%; border-radius: 8px; }
.reference.compact .reference-grid { grid-template-columns: 96px 1fr; }
.reference.compact img { aspect-ratio: 1; object-fit: cover; }
.overview-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.overview-image img { width: 100%; border-radius: 10px; }
.dims { font-size: 1.5rem; font-weight: 700; margin: .2rem 0 .5rem; }
.ov-fabrics { list-style: none; padding: 0; display: grid; gap: .6rem; }
.ov-fabrics li { display: grid; grid-template-columns: 64px 1fr; gap: .6rem; align-items: center; }
.ov-fabrics img, .ov-fabrics .no-photo { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; font-size: .7rem; }
@media (min-width: 640px) {
  .idea-grid, .design-grid { grid-template-columns: repeat(2, 1fr); }
  .reference-grid, .overview-grid { grid-template-columns: minmax(200px, 320px) 1fr; }
}
@media (min-width: 900px) {
  .idea-grid, .design-grid { grid-template-columns: repeat(3, 1fr); }
}

/* --- M4: API --- */
.api-action { border-left: 6px solid var(--accent); }
.api-action form { margin: 0 0 .5rem; }
.manual-fallback > summary { color: var(--accent); }
.manual-fallback .ai-bridge { border: 0; padding: 0; margin-top: .75rem; }
button[disabled] { opacity: .7; cursor: progress; }

/* --- M5: вход --- */
.topbar nav { display: flex; gap: 1rem; align-items: center; }
.topbar .logout { margin: 0; }
.login { max-width: 420px; margin: 2rem auto; }