/* ==========================================================================
   Tech Pack Studio — design tokens
   Palette: paper base + ink navy text + blueprint-blue accent +
   stitch-orange callouts (nods to the pattern-maker's chalk & red arrow
   annotations on a real spec sheet).
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --paper: #FAFAF7;
  --card: #FFFFFF;
  --ink: #1C2333;
  --ink-soft: #5B6478;
  --line: #DEDACD;
  --line-strong: #C6C1AF;
  --blueprint: #2D5F8A;
  --blueprint-dim: #E8EFF4;
  --stitch: #C4622D;
  --stitch-dim: #FBEAE0;
  --qc: #A13B3B;
  --good: #3F7A5C;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(28,35,51,.06), 0 8px 24px -12px rgba(28,35,51,.12);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--paper);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 32px 32px;
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--blueprint); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; margin: 0 0 .4em; letter-spacing: -.01em; }
.mono { font-family: var(--font-mono); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--blueprint);
  outline-offset: 2px;
}

/* ---------------- Layout shells ---------------- */
.shell { min-height: 100%; display: flex; flex-direction: column; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--ink); }
.brand .mark {
  width: 28px; height: 28px; border-radius: 6px;
  background: var(--ink);
  display: flex; align-items: center; justify-content: center;
  color: var(--paper); font-family: var(--font-mono); font-size: 13px; font-weight: 700;
}
.brand .eyebrow { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .12em; color: var(--ink-soft); text-transform: uppercase; display: block; font-weight: 500; }

.topbar-right { display: flex; align-items: center; gap: 14px; }
.user-chip { font-size: 13px; color: var(--ink-soft); }

.container { max-width: 1180px; margin: 0 auto; padding: 32px 24px 80px; width: 100%; }
.container.narrow { max-width: 460px; }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 8px; border: 1px solid var(--line-strong);
  background: var(--card); color: var(--ink); font-weight: 600; font-size: 13.5px;
  cursor: pointer; transition: transform .1s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { background: var(--blueprint-dim); border-color: var(--blueprint); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--blueprint); border-color: var(--blueprint); }
.btn-accent { background: var(--stitch); border-color: var(--stitch); color: white; }
.btn-accent:hover { filter: brightness(1.06); background: var(--stitch); }
.btn-danger { color: var(--qc); border-color: var(--qc); background: white; }
.btn-danger:hover { background: #FBEAEA; }
.btn-sm { padding: 6px 12px; font-size: 12.5px; border-radius: 6px; }
.btn-icon { padding: 8px; width: 34px; height: 34px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------------- Cards / panels ---------------- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--line);
}
.panel-head h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-soft); }
.panel-body { padding: 18px; }

/* ---------------- Forms ---------------- */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 12.5px; font-weight: 600; color: var(--ink-soft); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .04em; }
.field input[type=text], .field input[type=email], .field input[type=password], .field input[type=number], .field select, .field textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line-strong); border-radius: 7px;
  background: var(--paper); color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blueprint); background: white; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.help { font-size: 12px; color: var(--ink-soft); margin-top: 4px; }
.alert { padding: 10px 14px; border-radius: 7px; font-size: 13.5px; margin-bottom: 16px; }
.alert-error { background: #FBEAEA; color: var(--qc); border: 1px solid #EFC6C6; }
.alert-ok { background: #EAF4EE; color: var(--good); border: 1px solid #C7E3D2; }

/* ---------------- Auth pages ---------------- */
.auth-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-card { width: 100%; }
.auth-head { text-align: center; margin-bottom: 22px; }
.auth-head .mark { margin: 0 auto 12px; }

/* ---------------- Dashboard ---------------- */
.dash-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 22px; flex-wrap: wrap; gap: 12px; }
.dash-head .eyebrow { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; color: var(--stitch); text-transform: uppercase; font-weight: 600; }

.tp-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.tp-card { display: block; overflow: hidden; transition: box-shadow .15s ease, transform .15s ease; }
.tp-card:hover { transform: translateY(-2px); box-shadow: 0 4px 8px rgba(28,35,51,.08), 0 16px 32px -14px rgba(28,35,51,.18); }
.tp-thumb { height: 160px; background: var(--blueprint-dim); display: flex; align-items: center; justify-content: center; border-bottom: 1px solid var(--line); position: relative; }
.tp-thumb img { max-width: 100%; max-height: 100%; object-fit: contain; padding: 10px; }
.tp-thumb .placeholder { font-family: var(--font-mono); font-size: 11px; color: var(--blueprint); text-transform: uppercase; letter-spacing: .08em; }
.tp-status { position: absolute; top: 8px; right: 8px; font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: .05em; padding: 3px 8px; border-radius: 20px; background: white; border: 1px solid var(--line-strong); }
.tp-body { padding: 12px 14px; }
.tp-body .name { font-family: var(--font-display); font-weight: 600; font-size: 14.5px; color: var(--ink); margin-bottom: 2px; }
.tp-body .meta { font-size: 12px; color: var(--ink-soft); font-family: var(--font-mono); }
.empty-state { text-align: center; padding: 70px 20px; color: var(--ink-soft); }
.empty-state .eyebrow { color: var(--stitch); }

/* ---------------- Editor layout ---------------- */
.editor-head {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px; background: rgba(250,250,247,.92); backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.editor-head .style-title { display: flex; flex-direction: column; }
.editor-head .style-title input {
  font-family: var(--font-display); font-weight: 700; font-size: 18px; border: none; background: transparent;
  padding: 2px 0; color: var(--ink); width: 340px;
}
.editor-head .style-title input:focus { outline: none; border-bottom: 1px solid var(--blueprint); }
.editor-head .style-title small { font-family: var(--font-mono); font-size: 11px; color: var(--ink-soft); }
.save-state { font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-soft); display: flex; align-items: center; gap: 6px; }
.save-state .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--good); }
.save-state.dirty .dot { background: var(--stitch); }

.editor-body { max-width: 1240px; margin: 0 auto; padding: 26px 24px 100px; display: grid; gap: 22px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 4px; }
.tab-btn {
  padding: 10px 16px; border: none; background: none; cursor: pointer;
  font-family: var(--font-display); font-weight: 600; font-size: 13.5px; color: var(--ink-soft);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab-btn.active { color: var(--ink); border-color: var(--stitch); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------------- Sketch board with numbered callouts ---------------- */
.sketch-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 800px) { .sketch-grid, .grid-2, .grid-3 { grid-template-columns: 1fr; } }

.sketch-panel { position: relative; }
.sketch-drop {
  position: relative; aspect-ratio: 3/4; border-radius: 8px; border: 1.5px dashed var(--line-strong);
  background: var(--card); display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.sketch-drop.has-image { border-style: solid; }
.sketch-drop img { width: 100%; height: 100%; object-fit: contain; padding: 8px; }
.sketch-drop .drop-msg { text-align: center; color: var(--ink-soft); font-size: 12.5px; padding: 20px; }
.sketch-drop .drop-msg svg { margin-bottom: 8px; opacity: .5; }
.sketch-panel .side-label { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-soft); margin-bottom: 8px; display: flex; justify-content: space-between; align-items: center; }

.pin {
  position: absolute; width: 22px; height: 22px; border-radius: 50%;
  background: var(--stitch); color: white; font-family: var(--font-mono); font-weight: 700; font-size: 11px;
  display: flex; align-items: center; justify-content: center; transform: translate(-50%, -50%);
  cursor: grab; box-shadow: 0 0 0 3px white, 0 2px 6px rgba(0,0,0,.25); border: none;
}
.pin:hover { background: var(--qc); }
.pin.placing { cursor: crosshair; }

/* ---------------- Measurement table ---------------- */
.m-table-wrap { overflow-x: auto; }
table.m-table { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 13px; }
table.m-table th { text-align: left; font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); padding: 8px 10px; border-bottom: 1.5px solid var(--ink); font-family: var(--font-body); font-weight: 600; }
table.m-table td { padding: 4px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.m-table tr:hover td { background: var(--blueprint-dim); }
table.m-table input[type=text], table.m-table input[type=number] {
  width: 100%; border: 1px solid transparent; background: transparent; padding: 6px 6px; border-radius: 5px; font-family: var(--font-mono); font-size: 13px;
}
table.m-table input:focus { border-color: var(--blueprint); background: white; }
table.m-table td.point-no { font-weight: 700; color: var(--stitch); width: 30px; text-align: center; }
table.m-table td.qc-cell { text-align: center; width: 40px; }
table.m-table .label-cell input { font-family: var(--font-body); font-weight: 500; font-size: 12.5px; text-transform: uppercase; letter-spacing: .01em;}
table.m-table td.actions { width: 30px; }
.qc-badge { display: inline-block; width: 16px; height: 16px; border-radius: 4px; border: 1.5px solid var(--line-strong); cursor: pointer; }
.qc-badge.on { background: var(--stitch); border-color: var(--stitch); }
.row-del { background: none; border: none; color: var(--ink-soft); cursor: pointer; padding: 4px; }
.row-del:hover { color: var(--qc); }

.table-tools { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; gap: 10px; flex-wrap: wrap; }

/* ---------------- Colorways ---------------- */
.color-row { display: grid; grid-template-columns: 32px 1fr 110px 110px 1fr 30px; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--line); }
.swatch { width: 26px; height: 26px; border-radius: 5px; border: 1px solid var(--line-strong); cursor: pointer; padding: 0; }
.color-row input { border: 1px solid var(--line-strong); border-radius: 6px; padding: 7px 9px; background: var(--paper); font-size: 13px; width: 100%; }

/* ---------------- CSV modal ---------------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(28,35,51,.5); display: none; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal-backdrop.open { display: flex; }
.modal { background: var(--card); border-radius: var(--radius); max-width: 640px; width: 100%; max-height: 86vh; overflow: auto; box-shadow: var(--shadow); }
.modal .panel-body { padding: 20px; }
.dropzone { border: 1.5px dashed var(--line-strong); border-radius: 8px; padding: 26px; text-align: center; cursor: pointer; color: var(--ink-soft); font-size: 13px; }
.dropzone.drag { border-color: var(--blueprint); background: var(--blueprint-dim); }
.csv-preview { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 12px; margin-top: 14px; }
.csv-preview th, .csv-preview td { border: 1px solid var(--line); padding: 5px 7px; }
.csv-preview th { background: var(--paper); }
.map-row { display: grid; grid-template-columns: 1fr 20px 1fr; gap: 10px; align-items: center; margin-bottom: 8px; font-size: 13px; }

footer.foot { text-align: center; padding: 30px; color: var(--ink-soft); font-size: 12px; font-family: var(--font-mono); }

/* Print / PDF page preview */
.print-hint { font-size: 12px; color: var(--ink-soft); }

@media print {
  .topbar, .editor-head, .tabs, .btn, .no-print { display: none !important; }
}