/* ═══════════════════════════════════════════════════════════
   PLANTA ANALYTICA — SHARED DESIGN SYSTEM  v1.0
   Canonical reference: stability-calculator.html
   Covers: validation.html, gravimetric-calculator.html,
           stability-calculator.html
   NOT for: rsms.html (uses its own variable convention)
═══════════════════════════════════════════════════════════ */

/* ── 1. Fonts (self-hosted) ────────────────────────────── */
/*
 * TTF source files live in /fonts/.
 * To upgrade to WOFF2 (~30% smaller): run setup-fonts.py, then add each
 * woff2 as the first src entry: url('fonts/name.woff2') format('woff2'),
 *                                url('fonts/name.ttf')   format('truetype')
 */

/* DM Mono — monospace (static weights: 300 / 400 / 500) */
@font-face {
  font-family: 'DM Mono';
  src: url('fonts/DMMono-Light.woff2') format('woff2'),
       url('fonts/DMMono-Light.ttf') format('truetype');
  font-weight: 300; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'DM Mono';
  src: url('fonts/DMMono-LightItalic.woff2') format('woff2'),
       url('fonts/DMMono-LightItalic.ttf') format('truetype');
  font-weight: 300; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'DM Mono';
  src: url('fonts/DMMono-Regular.woff2') format('woff2'),
       url('fonts/DMMono-Regular.ttf') format('truetype');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'DM Mono';
  src: url('fonts/DMMono-Italic.woff2') format('woff2'),
       url('fonts/DMMono-Italic.ttf') format('truetype');
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'DM Mono';
  src: url('fonts/DMMono-Medium.woff2') format('woff2'),
       url('fonts/DMMono-Medium.ttf') format('truetype');
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'DM Mono';
  src: url('fonts/DMMono-MediumItalic.woff2') format('woff2'),
       url('fonts/DMMono-MediumItalic.ttf') format('truetype');
  font-weight: 500; font-style: italic; font-display: swap;
}

/* DM Sans — variable (wght 100–1000, opsz 9–40) */
@font-face {
  font-family: 'DM Sans';
  src: url('fonts/DMSans-VariableFont_opsz,wght.woff2') format('woff2'),
       url('fonts/DMSans-VariableFont_opsz,wght.ttf') format('truetype');
  font-weight: 100 1000; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'DM Sans';
  src: url('fonts/DMSans-Italic-VariableFont_opsz,wght.woff2') format('woff2'),
       url('fonts/DMSans-Italic-VariableFont_opsz,wght.ttf') format('truetype');
  font-weight: 100 1000; font-style: italic; font-display: swap;
}

/* Libre Baskerville — variable (wght 400–700) */
@font-face {
  font-family: 'Libre Baskerville';
  src: url('fonts/LibreBaskerville-VariableFont_wght.woff2') format('woff2'),
       url('fonts/LibreBaskerville-VariableFont_wght.ttf') format('truetype');
  font-weight: 400 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Libre Baskerville';
  src: url('fonts/LibreBaskerville-Italic-VariableFont_wght.woff2') format('woff2'),
       url('fonts/LibreBaskerville-Italic-VariableFont_wght.ttf') format('truetype');
  font-weight: 400 700; font-style: italic; font-display: swap;
}

/* Lora — variable (wght 400–700) — branding / logo use */
@font-face {
  font-family: 'Lora';
  src: url('fonts/Lora-VariableFont_wght.woff2') format('woff2'),
       url('fonts/Lora-VariableFont_wght.ttf') format('truetype');
  font-weight: 400 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Lora';
  src: url('fonts/Lora-Italic-VariableFont_wght.woff2') format('woff2'),
       url('fonts/Lora-Italic-VariableFont_wght.ttf') format('truetype');
  font-weight: 400 700; font-style: italic; font-display: swap;
}

/* Manrope — variable (wght 200–800) */
@font-face {
  font-family: 'Manrope';
  src: url('fonts/Manrope-VariableFont_wght.woff2') format('woff2'),
       url('fonts/Manrope-VariableFont_wght.ttf') format('truetype');
  font-weight: 200 800; font-style: normal; font-display: swap;
}

/* ── 2. Base reset ───────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── 2. Design tokens ──────────────────────────────────── */
:root {
  /* Ink / text scale */
  --ink:       #1a1a2e;
  --ink-mid:   #4a4a6a;
  --ink-light: #8888aa;

  /* Rules / borders */
  --rule:       #e0e0ec;
  --rule-light: #f0f0f8;

  /* Surfaces (stability-calc convention: white bg, tinted panels) */
  --bg:     #ffffff;
  --panel:  #f7f7fb;
  --panel2: #f0f0f8;

  /* Accent (PA sky blue — canonical across all apps) */
  --accent:       #0a8fe1;
  --accent-light: #e0f4ff;

  /* Semantic pass / warn / fail */
  --ok:           #009d46;
  --ok-light:     #e8f5ee;
  --warn:         #cc7722;
  --warn-light:   #fff3e0;
  --danger:       #cc3333;
  --danger-light: #fff0f0;

  /* Chart / stability-specific palette (kept here for cross-file consistency) */
  --ci-blue:    #3366dd;
  --pi-violet:  #7755cc;
  --teal:       #228877;
  --shelf-orange: #dd8800;

  /* Typography */
  --mono:    'DM Mono', monospace;
  --sans:    'DM Sans', sans-serif;
  --serif:   'Libre Baskerville', serif;
  --heading: var(--serif);
  --display: 'Manrope', sans-serif;

  /* Layout */
  --radius:    4px;
  --shadow:    0 1px 4px rgba(0,0,0,.07);
  --shadow-md: 0 4px 16px rgba(0,0,0,.12);
}

/* ── 3. Base reset ─────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
}

/* Remove number input spinners globally */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; }

/* ── 4. Toast ──────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .25s, transform .25s;
  pointer-events: none;
  z-index: 9999;
  max-width: 400px;
  text-align: center;
}
.toast.show  { opacity: 1; transform: translateY(0); }
.toast.error, .toast.err { background: var(--danger); }

/* validation.html uses #toast centred at bottom — kept via inline style; this rule
   handles the stability/gravimetric right-anchored variant */

/* ── 5. Modal system ───────────────────────────────────── */
.modal-overlay {
  display: none; /* toggled to flex by JS */
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.35);
  align-items: center;
  justify-content: center;
  z-index: 9000;
  padding: 20px;
}
.modal-overlay.open { display: flex; } /* stability-calc uses .open class */

.modal, .modal-box {
  background: #fff;
  border-radius: 6px;
  padding: 26px 28px;
  width: 480px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-md);
}
.modal h2, .modal-title {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 5px;
}
.modal p, .modal-sub {
  font-size: 12px;
  color: var(--ink-mid);
  margin-bottom: 16px;
  line-height: 1.5;
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  border-top: 1px solid var(--rule);
  padding-top: 14px;
  margin-top: 4px;
}
.modal-btn {
  padding: 7px 15px;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
  border: 1px solid var(--rule);
  background: #fff;
  color: var(--ink-mid);
}
.modal-btn:hover { border-color: var(--accent); color: var(--accent); }
.modal-inp, .modal-input {
  width: 100%;
  padding: 8px 10px;
  font-family: var(--sans);
  font-size: 13px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  outline: none;
  color: var(--ink);
  background: #fff;
  margin-bottom: 12px;
}
.modal-inp:focus, .modal-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light);
}
.modal-empty {
  text-align: center;
  padding: 22px;
  color: var(--ink-light);
  font-size: 12px;
  font-style: italic;
}

/* ── 5a. Session picker ────────────────────────────────── */
.modal-sessions, .session-picker-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 8px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: #fff;
}
.session-search {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink);
  background: var(--bg);
  margin-bottom: 10px;
  outline: none;
}
.session-search:focus { border-color: var(--accent); }
.session-pagination, .picker-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mid);
}
.session-pag-btn {
  padding: 3px 10px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--bg);
  color: var(--ink);
  font-size: 12px;
  cursor: pointer;
}
.session-pag-btn:disabled { opacity: .4; cursor: default; }
.session-pag-btn:not(:disabled):hover { border-color: var(--ink-mid); }
.session-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  cursor: pointer;
  transition: border-color .12s, background .12s;
  border-bottom: 1px solid var(--rule-light);
}
.session-row:last-child { border-bottom: none; }
.session-row:hover { border-color: var(--accent); background: var(--accent-light); }
.session-row .sr-icon { font-size: 17px; flex-shrink: 0; }
.session-row .sr-info { flex: 1; min-width: 0; }
.session-row .sr-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.session-row .sr-meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-light);
  margin-top: 2px;
}
.session-row .sr-del {
  padding: 3px 7px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink-light);
  font-size: 14px;
  opacity: .5;
  flex-shrink: 0;
}
.session-row .sr-del:hover { opacity: 1; color: var(--danger); }

/* ── 6. Buttons ────────────────────────────────────────── */
.btn, .hdr-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .04em;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
  border: 1px solid var(--rule);
  background: #fff;
  color: var(--ink-mid);
}
.btn:hover, .hdr-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}
.btn:disabled, .hdr-btn:disabled { opacity: .45; cursor: not-allowed; pointer-events: none; }
.btn svg, .hdr-btn svg { flex-shrink: 0; }

.btn-sm { padding: 4px 9px; font-size: 11px; }

.btn-primary, .hdr-btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover, .hdr-btn.primary:hover {
  background: #0072c6;
  border-color: #0072c6;
  color: #fff;
}

.btn-success {
  background: var(--ok);
  color: #fff;
  border-color: var(--ok);
}
.btn-success:hover { background: #007a36; border-color: #007a36; color: #fff; }

.btn-danger, .hdr-btn.danger {
  color: var(--danger);
  border-color: #fcc;
}
.btn-danger:hover, .hdr-btn.danger:hover {
  background: var(--danger-light);
  border-color: var(--danger);
  color: var(--danger);
}

.btn-teal, .hdr-btn.report {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}
.btn-teal:hover, .hdr-btn.report:hover { background: #1a6b5e; border-color: #1a6b5e; color: #fff; }

.btn-ghost {
  background: none;
  border-color: transparent;
  color: var(--ink-mid);
}
.btn-ghost:hover { background: var(--panel2); border-color: var(--rule); color: var(--ink); }

/* button row */
.btn-group { display: flex; gap: 6px; align-items: center; }
.hdr-btns  { display: flex; align-items: center; gap: 6px; margin-left: auto; flex-wrap: wrap; }

/* ── App header title / subtitle ───────────────────────── */
.app-title { font-family: var(--heading); font-size: 19px; font-weight: 700; letter-spacing: -0.3px; color: var(--ink); }
.app-sub   { font-family: var(--sans); font-size: 10px; color: var(--ink-light); letter-spacing: .05em; text-transform: uppercase; }

/* ── 7. Badges ─────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .04em;
  border: 1px solid transparent;
}

/* Pass / fail / pending (validation, print) */
.badge-pass, .badge-ok {
  background: var(--ok-light);
  color: #006630;
  border-color: #b0dfc7;
}
.badge-fail, .badge-err {
  background: var(--danger-light);
  color: var(--danger);
  border-color: #f5c0c0;
}
.badge-pending {
  background: var(--panel2);
  color: var(--ink-light);
  border-color: var(--rule);
}
.badge-na {
  background: #f7f7f7;
  color: var(--ink-light);
  border-color: var(--rule);
  font-style: italic;
}

/* Workflow status badges */
.badge-draft {
  background: var(--panel2);
  color: var(--ink-mid);
  border-color: var(--rule);
}
.badge-inprogress, .badge-warn {
  background: var(--warn-light);
  color: var(--warn);
  border-color: #f5ddb0;
}
.badge-complete, .badge-info {
  background: var(--accent-light);
  color: #0a3a8a;
  border-color: #b8cef5;
}
.badge-accepted {
  background: var(--ok-light);
  color: #006630;
  border-color: #b0dfc7;
}
.badge-superseded {
  background: var(--panel2);
  color: var(--ink-light);
  border-color: var(--rule);
}
.badge-locked {
  background: var(--danger-light);
  color: var(--danger);
  border-color: #f5c0c0;
}

/* Generic color badges (LIMS sample/equipment status) */
.badge-green { background: #e6f5ec; color: #155724; }
.badge-amber { background: #fef3c7; color: #92400e; }
.badge-red   { background: #fde8e8; color: #991b1b; }
.badge-gray  { background: var(--accent-light); color: var(--ink-mid); }
.badge-blue  { background: var(--accent-light); color: #0a5a9e; }
.badge-std   { background: #ede9fe; color: #5b21b6; }
.badge-rs    {
  background: #d1fae5;
  color: #065f46;
  font-size: 12px;       /* business codes: larger than status pills (10px) */
  font-weight: 600;
  letter-spacing: .02em;
}

/* ── 8. Meta grid (shared form fields) ─────────────────── */
.meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 14px;
  margin-bottom: 14px;
}
.meta-field {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.meta-field.full { grid-column: 1 / 3; }
.meta-field label {
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-mid);
}
.meta-field input,
.meta-field textarea,
.meta-field select {
  padding: 6px 9px;
  font-family: var(--sans);
  font-size: 12px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  outline: none;
  color: var(--ink);
  background: #fff;
}
.meta-field input:focus,
.meta-field textarea:focus,
.meta-field select:focus { border-color: var(--accent); }
.meta-field textarea { resize: vertical; min-height: 48px; }

/* Generic labelled field (used in stability sidebar) */
.field { margin-bottom: 11px; }
.field:last-child { margin-bottom: 0; }
.field label { display: block; font-size: 12px; font-weight: 500; color: var(--ink-mid); margin-bottom: 4px; }
.field .unit { font-family: var(--mono); font-size: 10px; color: var(--ink-light); margin-left: 3px; }
.field input[type="number"],
.field input[type="text"] {
  width: 100%;
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 3px;
  outline: none;
}
.field input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-light); }
.field .hint { font-size: 10px; color: var(--ink-light); margin-top: 3px; line-height: 1.4; }

/* ── 9. Section label ──────────────────────────────────── */
.section-label, .sec-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-light);
  margin-bottom: 9px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ── 10. Stat / snapshot cards ─────────────────────────── */
.stat-card, .snapshot-item, .stat-tile {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 7px 9px;
}
.stat-card .s-label,
.snapshot-item .s-label,
.stat-tile .stat-lbl {
  font-family: var(--mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-light);
  margin-bottom: 2px;
}
.stat-card .s-value,
.stat-card .s-val,
.snapshot-item .s-val,
.stat-tile .stat-val {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--ink);
}

/* ── 11. Toggle switch (checkbox-based) ────────────────── */
.toggle-switch { position: relative; width: 36px; height: 20px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--rule);
  border-radius: 10px;
  cursor: pointer;
  transition: background .2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform .2s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--accent); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(16px); }

/* ── 12. Responsive base ───────────────────────────────── */
@media (max-width: 640px) {
  .meta-grid { grid-template-columns: 1fr; }
  .meta-field.full { grid-column: 1; }
}

/* ── 13. Print base ────────────────────────────────────── */
/*
 * Each app manages its own print frame. This block provides
 * common print typography; app-specific layout stays local.
 */
#print-frame { display: none; }

@media print {
  body > *:not(#print-frame) { display: none !important; }
  #print-frame {
    display: block !important;
    font-family: Arial, sans-serif;
    font-size: 11pt;
    color: #000;
    background: #fff;
  }
  #print-frame h1 { font-size: 16pt; margin: 0 0 4px; }
  #print-frame h2 { font-size: 12pt; margin: 18px 0 6px; border-bottom: 1px solid #ccc; padding-bottom: 3px; }
  #print-frame h3 { font-size: 10.5pt; margin: 12px 0 4px; color: #222; }
  #print-frame table { width: 100%; border-collapse: collapse; margin: 6px 0 14px; font-size: 9.5pt; }
  #print-frame th { background: #f0f0f0; border: 1px solid #ccc; padding: 4px 7px; text-align: left; font-weight: 600; }
  #print-frame td { border: 1px solid #ddd; padding: 3px 7px; }
  #print-frame .badge-pass, #print-frame .badge-ok   { color: #065f46; font-weight: 700; background: none; border: none; }
  #print-frame .badge-fail, #print-frame .badge-err  { color: #991b1b; font-weight: 700; background: none; border: none; }
  #print-frame .badge-pending { color: #92400e; background: none; border: none; }
  #print-frame .pr-section-break { page-break-before: always; }
  #print-frame .pr-footer { margin-top: 30px; font-size: 8pt; color: #888; border-top: 1px solid #ddd; padding-top: 6px; }
  #print-frame .pr-overall { display: inline-block; padding: 4px 14px; border-radius: 4px; font-weight: 700; font-size: 13pt; }
  #print-frame .pr-overall.pass    { background: #d1fae5; color: #065f46; }
  #print-frame .pr-overall.fail    { background: #fee2e2; color: #991b1b; }
  #print-frame .pr-overall.pending { background: #fef3c7; color: #92400e; }
  #print-frame .pr-meta { display: grid; grid-template-columns: repeat(3,1fr); gap: 6px 20px; margin: 12px 0 18px; }
  #print-frame .pr-meta-item { font-size: 9.5pt; }
  #print-frame .pr-meta-item .lbl { font-size: 8pt; color: #666; text-transform: uppercase; letter-spacing: .04em; }
  #print-frame .pr-meta-item .val { font-weight: 600; }
}