:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --text: #172033;
  --muted: #667085;
  --line: #e3e8ef;
  --line-strong: #cfd7e3;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .04), 0 6px 20px rgba(15, 23, 42, .035);
  --shadow-md: 0 18px 48px rgba(15, 23, 42, .11);
  --quick: #2864dc;
  --quick-soft: #edf4ff;
  --quick-dark: #1949ad;
  --warehouse: #e98212;
  --warehouse-soft: #fff5e8;
  --warehouse-dark: #b85b06;
  --special: #7a4bd3;
  --special-soft: #f4efff;
  --special-dark: #5b31ab;
  --danger: #d92d20;
  --success: #16845b;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --content: 1240px;
  --mode-color: var(--quick);
  --mode-soft: var(--quick-soft);
  --mode-dark: var(--quick-dark);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--bg); scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--bg); font-size: 15px; line-height: 1.5; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .58; }
a { color: inherit; }
.hidden { display: none !important; }

.app-shell[data-mode="warehouse"] { --mode-color: var(--warehouse); --mode-soft: var(--warehouse-soft); --mode-dark: var(--warehouse-dark); }
.app-shell[data-mode="special"] { --mode-color: var(--special); --mode-soft: var(--special-soft); --mode-dark: var(--special-dark); }

.topbar { position: sticky; top: 0; z-index: 40; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(227,232,239,.9); backdrop-filter: blur(18px); }
.topbar__inner { max-width: var(--content); min-height: 70px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; min-width: 0; }
.brand__mark { width: 34px; height: 34px; padding: 7px; border-radius: 10px; display: grid; gap: 3px; background: #172033; transform: rotate(-3deg); }
.brand__mark span { display: block; height: 4px; border-radius: 99px; background: #fff; }
.brand__mark span:nth-child(1) { width: 100%; }
.brand__mark span:nth-child(2) { width: 72%; }
.brand__mark span:nth-child(3) { width: 48%; }
.brand__text { display: grid; line-height: 1.05; }
.brand__text strong { letter-spacing: .14em; font-size: 17px; }
.brand__text small { margin-top: 5px; color: var(--muted); font-size: 11px; letter-spacing: .015em; }
.topbar__actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; min-width: 0; }
.account-chip { max-width: 310px; display: flex; align-items: center; gap: 8px; min-width: 0; padding: 5px 8px 5px 5px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface-soft); }
.account-chip__plan { flex: none; padding: 4px 7px; border-radius: 999px; background: #e8f4ec; color: #14734e; font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.account-chip__email { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; color: #344054; font-size: 12px; }

.mode-nav { background: var(--surface); border-bottom: 1px solid var(--line); }
.mode-nav__inner { max-width: var(--content); margin: 0 auto; padding: 16px 24px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.mode-tab { position: relative; min-width: 0; padding: 14px 44px 14px 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: #475467; display: flex; align-items: center; gap: 12px; text-align: left; transition: border-color .18s ease, box-shadow .18s ease, background .18s ease, transform .18s ease; }
.mode-tab:hover { border-color: var(--line-strong); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.mode-tab__icon { width: 34px; height: 34px; flex: none; display: grid; place-items: center; border-radius: 10px; font-size: 19px; font-weight: 800; background: #f1f4f8; color: #667085; }
.mode-tab > span:nth-child(2) { min-width: 0; display: grid; }
.mode-tab strong { color: #344054; font-size: 14px; }
.mode-tab small { margin-top: 2px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; color: #98a2b3; font-size: 11px; }
.mode-tab.is-active { background: var(--tab-soft); border-color: var(--tab-color); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--tab-color) 30%, transparent); }
.mode-tab.is-active .mode-tab__icon { background: var(--tab-color); color: #fff; }
.mode-tab.is-active strong { color: var(--tab-dark); }
.mode-tab--quick { --tab-color: var(--quick); --tab-soft: var(--quick-soft); --tab-dark: var(--quick-dark); }
.mode-tab--warehouse { --tab-color: var(--warehouse); --tab-soft: var(--warehouse-soft); --tab-dark: var(--warehouse-dark); }
.mode-tab--special { --tab-color: var(--special); --tab-soft: var(--special-soft); --tab-dark: var(--special-dark); }
.pro-badge { position: absolute; top: 9px; right: 9px; padding: 3px 6px; border-radius: 6px; background: #f2f4f7; color: #667085; font-size: 9px; font-style: normal; font-weight: 900; letter-spacing: .08em; }
.mode-tab.is-active .pro-badge { background: rgba(255,255,255,.8); color: var(--tab-dark); }

.main-content { max-width: var(--content); margin: 0 auto; padding: 34px 24px 64px; }
.workspace-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.workspace-heading h1 { max-width: 740px; margin: 3px 0 7px; font-size: clamp(25px, 3vw, 38px); line-height: 1.12; letter-spacing: -.035em; }
.workspace-heading p:not(.eyebrow) { max-width: 760px; margin: 0; color: var(--muted); }
.workspace-heading__actions { display: flex; align-items: center; gap: 8px; flex: none; }
.eyebrow { margin: 0; color: var(--mode-color); font-size: 11px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.beta-badge { align-self: flex-start; padding: 6px 9px; border: 1px solid color-mix(in srgb, var(--mode-color) 30%, var(--line)); border-radius: 8px; background: var(--mode-soft); color: var(--mode-dark); font-size: 10px; font-weight: 850; letter-spacing: .1em; }

.project-strip { margin-bottom: 16px; padding: 13px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); display: flex; align-items: flex-end; gap: 16px; }
.field--project { flex: 1 1 420px; }
.project-strip__status { margin-left: auto; padding-bottom: 10px; color: #98a2b3; font-size: 12px; white-space: nowrap; }

.input-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 16px; }
.panel, .settings-panel { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
.panel { padding: 20px; }
.panel__header { min-height: 48px; margin-bottom: 16px; display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.panel__header > div:first-child { min-width: 0; }
.panel__header h2, .settings-panel h2 { display: inline; margin: 0; font-size: 18px; letter-spacing: -.015em; }
.panel__header p, .settings-panel p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.panel__tools { display: flex; align-items: center; gap: 7px; flex: none; }
.step-number { width: 23px; height: 23px; margin-right: 8px; display: inline-grid; place-items: center; border-radius: 7px; background: var(--mode-soft); color: var(--mode-dark); font-size: 11px; font-weight: 850; vertical-align: 2px; }

.button { min-height: 40px; padding: 9px 15px; border: 1px solid transparent; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; color: #344054; background: var(--surface); font-weight: 700; font-size: 13px; line-height: 1.2; transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease; }
.button:hover:not(:disabled) { transform: translateY(-1px); }
.button--small { min-height: 34px; padding: 7px 11px; font-size: 12px; }
.button--large { min-height: 50px; padding: 13px 20px; border-radius: 12px; font-size: 14px; }
.button--primary { background: var(--quick); color: #fff; box-shadow: 0 8px 18px rgba(40,100,220,.22); }
.button--primary:hover { background: var(--quick-dark); }
.button--dark { background: #172033; color: #fff; }
.button--dark:hover { background: #0b1220; }
.button--secondary { border-color: var(--line-strong); background: #f8fafc; color: #344054; }
.button--ghost { border-color: var(--line); background: var(--surface); color: #475467; }
.button--ghost:hover { border-color: var(--line-strong); background: #f8fafc; }
.button--warehouse { background: var(--warehouse); color: #fff; box-shadow: 0 8px 18px rgba(233,130,18,.2); }
.button--warehouse:hover { background: var(--warehouse-dark); }
.button--special { background: var(--special); color: #fff; box-shadow: 0 8px 18px rgba(122,75,211,.2); }
.button--special:hover { background: var(--special-dark); }
.text-button { padding: 6px 4px; border: 0; background: transparent; color: var(--mode-color); font-size: 12px; font-weight: 750; }
.text-button:hover { color: var(--mode-dark); text-decoration: underline; text-underline-offset: 3px; }
.text-button--danger { color: var(--danger); }
.icon-button { width: 34px; height: 34px; padding: 0; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-soft); color: var(--mode-color); font-size: 22px; line-height: 1; }
.icon-button:hover { border-color: color-mix(in srgb, var(--mode-color) 40%, var(--line)); background: var(--mode-soft); }

.data-table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 12px; }
.data-table { width: 100%; min-width: 430px; border-collapse: collapse; table-layout: fixed; }
.data-table th { padding: 9px 10px; border-bottom: 1px solid var(--line); background: #f8fafc; color: #667085; text-align: left; font-size: 10px; font-weight: 800; letter-spacing: .055em; text-transform: uppercase; }
.data-table th:nth-child(1) { width: 43%; }
.data-table th:nth-child(2) { width: 25%; }
.data-table th:nth-child(3) { width: 24%; }
.data-table th:last-child { width: 38px; }
.data-table td { padding: 5px; border-bottom: 1px solid #edf0f4; vertical-align: middle; }
.data-table tr:last-child td { border-bottom: 0; }
.data-table input { width: 100%; min-width: 0; padding: 8px 8px; border: 1px solid transparent; border-radius: 8px; outline: none; background: transparent; color: var(--text); }
.data-table input:hover { background: #f8fafc; }
.data-table input:focus { border-color: color-mix(in srgb, var(--mode-color) 55%, white); background: #fff; box-shadow: 0 0 0 3px color-mix(in srgb, var(--mode-color) 12%, transparent); }
.data-table input::placeholder { color: #b1bac8; }
.row-remove { width: 28px; height: 28px; padding: 0; border: 0; border-radius: 8px; background: transparent; color: #98a2b3; font-size: 18px; }
.row-remove:hover { background: #fef0ef; color: var(--danger); }
.table-note { margin: 9px 2px 0; color: #98a2b3; font-size: 11px; }

.settings-panel { margin-top: 16px; padding: 20px; }
.settings-panel__title { display: flex; align-items: flex-start; }
.settings-panel__title .step-number { flex: none; margin-top: 1px; }
.settings-grid { margin-top: 18px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.settings-grid--special { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.field { min-width: 0; display: grid; gap: 6px; }
.field > span { color: #475467; font-size: 11px; font-weight: 720; }
.field input, .field select, .field textarea, select { width: 100%; min-width: 0; min-height: 42px; padding: 9px 11px; border: 1px solid var(--line-strong); border-radius: 10px; outline: none; background: #fff; color: var(--text); }
.field input:focus, .field select:focus, textarea:focus, select:focus { border-color: var(--mode-color); box-shadow: 0 0 0 3px color-mix(in srgb, var(--mode-color) 12%, transparent); }
.settings-panel__footer { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.inline-help { color: #667085; font-size: 12px; }
.inline-help strong { color: #344054; }

.warehouse-grid, .special-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr); gap: 16px; }
.warehouse-add { display: grid; grid-template-columns: 1fr 120px auto; align-items: end; gap: 10px; margin-bottom: 18px; padding: 14px; border-radius: 12px; background: var(--warehouse-soft); }
.warehouse-list { display: grid; gap: 8px; }
.warehouse-empty { padding: 28px 12px; border: 1px dashed #e7d3b5; border-radius: 12px; color: #98704b; text-align: center; background: #fffaf5; }
.warehouse-item { padding: 10px 11px; border: 1px solid var(--line); border-radius: 11px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.warehouse-item__length { font-weight: 780; }
.warehouse-item__quantity { color: var(--muted); font-size: 12px; }
.warehouse-start-card { display: flex; flex-direction: column; }
.warehouse-start-card > p:not(.eyebrow) { color: var(--muted); }
.warehouse-start-card .field { margin: 10px 0; }
.warehouse-start-card .button { margin-top: auto; }
.warehouse-summary, .special-summary { margin: 12px 0 18px; padding: 12px; border-radius: 11px; background: #f8fafc; color: #475467; font-size: 12px; }
.feature-note { background: linear-gradient(145deg, #fbf9ff, var(--special-soft)); border-color: #dfd2fa; }
.feature-note__icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 13px; background: var(--special); color: #fff; font-size: 25px; }
.feature-note h2 { margin-bottom: 5px; }
.feature-note p, .feature-note li { color: #625a70; }
.feature-note ul { padding-left: 20px; }

.pro-gate { overflow: hidden; border: 1px solid color-mix(in srgb, var(--mode-color) 32%, var(--line)); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-sm); }
.pro-gate__hero { min-height: 230px; padding: clamp(24px, 4vw, 48px); display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(300px, .7fr); gap: 28px; align-items: center; background: linear-gradient(135deg, var(--mode-soft), #fff 66%); }
.pro-gate h1 { margin: 5px 0 12px; max-width: 680px; font-size: clamp(28px, 4vw, 46px); line-height: 1.08; letter-spacing: -.04em; }
.pro-gate p { max-width: 670px; color: #667085; }
.pro-gate__actions { margin-top: 22px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.pro-gate__price { justify-self: stretch; padding: 22px; border: 1px solid rgba(255,255,255,.8); border-radius: 18px; background: rgba(255,255,255,.78); box-shadow: var(--shadow-md); backdrop-filter: blur(12px); }
.pro-gate__price strong { display: block; font-size: 34px; letter-spacing: -.04em; }
.pro-gate__price span { color: var(--muted); font-size: 12px; }
.pro-gate__price ul { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; color: #475467; font-size: 12px; }
.pro-gate__price li::before { content: "✓"; margin-right: 8px; color: var(--mode-color); font-weight: 900; }
.pro-gate__features { padding: 20px 28px 28px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.pro-feature { padding: 14px; border: 1px solid var(--line); border-radius: 13px; }
.pro-feature strong { display: block; margin-bottom: 3px; }
.pro-feature span { color: var(--muted); font-size: 12px; }

.result-section { margin-top: 30px; scroll-margin-top: 100px; }
.result-header { margin-bottom: 15px; display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; }
.result-header h2 { margin: 3px 0 3px; font-size: 26px; letter-spacing: -.025em; }
.result-header p:not(.eyebrow) { margin: 0; color: var(--muted); }
.result-actions { display: flex; gap: 8px; flex: none; }
.stats-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
.stat-card { min-width: 0; padding: 14px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface); box-shadow: var(--shadow-sm); }
.stat-card__label { color: #667085; font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.stat-card__value { margin-top: 5px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 20px; font-weight: 800; letter-spacing: -.025em; }
.stat-card__meta { margin-top: 3px; color: #98a2b3; font-size: 10px; }
.stock-breakdown { margin-top: 14px; overflow: hidden; border: 1px solid #cfd8e6; border-radius: 14px; background: var(--surface); box-shadow: var(--shadow-sm); }
.stock-breakdown__heading { min-height: 58px; padding: 12px 15px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); background: #f8fafc; }
.stock-breakdown__heading > div { display: grid; gap: 2px; }
.stock-breakdown__heading strong { color: #24324a; font-size: 14px; }
.stock-breakdown__heading span { color: #667085; font-size: 11px; }
.stock-breakdown__heading b { flex: none; padding: 5px 9px; border-radius: 8px; background: var(--quick-soft); color: var(--quick-dark); font-size: 12px; }
.stock-breakdown__table { width: 100%; }
.stock-breakdown__row { min-height: 43px; padding: 8px 15px; display: grid; grid-template-columns: minmax(150px, 1.5fr) minmax(110px, .8fr) minmax(100px, .7fr) minmax(110px, .8fr); align-items: center; gap: 12px; border-top: 1px solid #eef1f5; font-size: 12px; }
.stock-breakdown__row:first-child { border-top: 0; }
.stock-breakdown__row--header { min-height: 32px; padding-top: 6px; padding-bottom: 6px; background: #fff; color: #98a2b3; font-size: 10px; font-weight: 750; text-transform: uppercase; letter-spacing: .04em; }
.stock-breakdown__row:not(.stock-breakdown__row--header) > span:first-child { color: #475467; }
.stock-breakdown__row strong { color: #27364f; font-size: 12px; }
.stock-breakdown__row--warehouse { box-shadow: inset 3px 0 0 var(--warehouse); }
.stock-breakdown__row--special { box-shadow: inset 3px 0 0 var(--special); }
.stock-breakdown__row--standard { box-shadow: inset 3px 0 0 var(--quick); }
.stock-usage { min-width: 170px; padding: 9px 11px; display: grid; gap: 1px; border: 1px solid var(--line); border-left: 4px solid var(--quick); border-radius: 10px; background: #f8fafc; }
.stock-usage--warehouse { border-left-color: var(--warehouse); background: var(--warehouse-soft); }
.stock-usage--special { border-left-color: var(--special); background: var(--special-soft); }
.stock-usage__source { color: #667085; font-size: 9px; font-weight: 800; letter-spacing: .055em; text-transform: uppercase; }
.stock-usage strong { color: #172033; font-size: 13px; }
.stock-usage small { color: #98a2b3; font-size: 10px; }
.result-legend { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 7px 14px; color: #667085; font-size: 10px; }
.result-legend > span { display: inline-flex; align-items: center; gap: 5px; }
.legend-swatch { width: 10px; height: 10px; flex: none; border-radius: 3px; background: #98a2b3; }
.legend-swatch--part { background: var(--mode-color); }
.legend-swatch--useful { background: #1d9a68; }
.legend-swatch--scrap { background: #d8a048; }
.legend-swatch--kerf { background: #172033; }
.legend-swatch--trim { background: #8792a4; }
.diagnostic-note { margin-top: 12px; padding: 12px 14px; border: 1px solid #cfe3ff; border-radius: 11px; background: #f1f7ff; color: #315d94; font-size: 12px; }
.layout-list { margin-top: 18px; display: grid; gap: 14px; }
.layout-card { break-inside: avoid; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
.layout-card__top { margin-bottom: 14px; display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.layout-card__title { min-width: 0; }
.layout-card__title h3 { margin: 0; font-size: 16px; }
.layout-card__title p { margin: 3px 0 0; color: var(--muted); font-size: 11px; }
.layout-card__repeat { flex: none; padding: 6px 9px; border-radius: 8px; background: var(--mode-soft); color: var(--mode-dark); font-size: 11px; font-weight: 850; }
.layout-bar { width: 100%; height: 44px; overflow: hidden; display: flex; align-items: stretch; border: 1px solid #d6dde7; border-radius: 9px; background: #eef1f5; }
.bar-segment { min-width: 0; position: relative; display: grid; place-items: center; border-right: 1px solid rgba(255,255,255,.72); overflow: hidden; color: #fff; font-size: 10px; font-weight: 800; white-space: nowrap; }
.bar-segment span { padding: 0 4px; overflow: hidden; text-overflow: ellipsis; }
.bar-segment--part { background: var(--mode-color); }
.bar-segment--part:nth-of-type(4n+1) { filter: brightness(.94); }
.bar-segment--kerf { min-width: 2px; background: #172033; }
.bar-segment--trim { min-width: 3px; background: #8792a4; }
.bar-segment--useful { background: #1d9a68; }
.bar-segment--scrap { background: #d8a048; }
.layout-card__details { margin-top: 12px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: start; }
.cut-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.cut-chip { max-width: 260px; padding: 5px 8px; border: 1px solid var(--line); border-radius: 8px; background: #f8fafc; color: #475467; font-size: 11px; }
.cut-chip strong { color: #172033; }
.layout-totals { display: grid; grid-template-columns: repeat(2, auto); gap: 3px 16px; text-align: right; font-size: 11px; }
.layout-totals span { color: #98a2b3; }
.layout-totals strong { color: #344054; }

.alert { padding: 12px 14px; border-radius: 11px; font-size: 13px; }
.alert--error { border: 1px solid #f5c6c1; background: #fff2f0; color: #a8271c; }

.site-footer { max-width: var(--content); margin: 0 auto; padding: 22px 24px 34px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; color: #98a2b3; font-size: 11px; }

.modal-backdrop { position: fixed; inset: 0; z-index: 80; padding: 24px; display: grid; place-items: center; background: rgba(10, 16, 28, .52); backdrop-filter: blur(8px); }
.modal { width: min(100%, 560px); max-height: calc(100vh - 48px); overflow: auto; position: relative; border: 1px solid rgba(255,255,255,.25); border-radius: 22px; background: #fff; box-shadow: 0 30px 90px rgba(0,0,0,.28); }
.modal--compact { padding: 28px; }
.modal--auth { width: min(100%, 860px); display: grid; grid-template-columns: .9fr 1.1fr; overflow: hidden; }
.modal__close { width: 34px; height: 34px; position: absolute; top: 12px; right: 12px; z-index: 2; border: 0; border-radius: 10px; background: rgba(255,255,255,.86); color: #667085; font-size: 22px; }
.modal h2 { margin: 4px 0 8px; letter-spacing: -.025em; }
.modal p { color: var(--muted); }
.modal textarea { width: 100%; min-height: 180px; padding: 12px; resize: vertical; border: 1px solid var(--line-strong); border-radius: 12px; outline: none; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.modal__actions { margin-top: 15px; display: flex; justify-content: flex-end; gap: 8px; }
.auth-visual { padding: 38px; background: linear-gradient(145deg, #192338, #0b1220); color: #fff; }
.auth-visual .eyebrow { color: #9dbdff; }
.auth-visual h2 { margin-top: 10px; font-size: 28px; line-height: 1.15; }
.auth-visual ul { margin: 24px 0; padding: 0; display: grid; gap: 9px; list-style: none; color: #c6d0df; }
.auth-visual li::before { content: "✓"; margin-right: 9px; color: #78a6ff; }
.auth-visual__mark { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 15px; background: #fff; color: #172033; font-weight: 900; font-size: 23px; }
.auth-price { margin-top: 34px; }
.auth-price strong { font-size: 28px; }
.auth-price span { margin-left: 6px; color: #9ba8ba; font-size: 11px; }
.auth-form-wrap { padding: 42px 38px 34px; }
.auth-switch { width: fit-content; margin-bottom: 22px; padding: 3px; display: flex; gap: 3px; border-radius: 10px; background: #f1f4f8; }
.auth-switch button { padding: 7px 10px; border: 0; border-radius: 8px; background: transparent; color: #667085; font-size: 12px; font-weight: 760; }
.auth-switch button.is-active { background: #fff; color: #172033; box-shadow: 0 1px 4px rgba(15,23,42,.12); }
.auth-form-wrap form { display: grid; gap: 14px; }
.auth-legal { margin: 14px 0 0; font-size: 10px; }
.project-list { display: grid; gap: 8px; margin-top: 18px; }
.project-item { padding: 11px; border: 1px solid var(--line); border-radius: 11px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.project-item button:first-of-type { flex: 1; border: 0; background: transparent; text-align: left; font-weight: 720; }

.toast-region { position: fixed; right: 20px; bottom: 20px; z-index: 100; display: grid; gap: 8px; }
.toast { min-width: 250px; max-width: 380px; padding: 12px 14px; border: 1px solid var(--line); border-left: 4px solid var(--success); border-radius: 11px; background: #fff; box-shadow: var(--shadow-md); color: #344054; font-size: 12px; animation: toastIn .2s ease both; }
.toast--error { border-left-color: var(--danger); }
@keyframes toastIn { from { opacity: 0; transform: translateY(8px); } }

:focus-visible { outline: 3px solid color-mix(in srgb, var(--mode-color) 25%, transparent); outline-offset: 2px; }

@media (max-width: 1000px) {
  .stats-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .input-grid, .warehouse-grid, .special-grid { grid-template-columns: 1fr; }
  .pro-gate__hero { grid-template-columns: 1fr; }
  .pro-gate__price { justify-self: start; width: min(100%, 380px); }
  .pro-gate__features { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .topbar__inner { min-height: 62px; padding: 0 15px; }
  .brand__text small { display: none; }
  .account-chip { display: none !important; }
  .mode-nav__inner { overflow-x: auto; grid-template-columns: repeat(3, minmax(210px, 1fr)); padding: 12px 15px; scroll-snap-type: x mandatory; }
  .mode-tab { scroll-snap-align: start; }
  .main-content { padding: 24px 15px 48px; }
  .workspace-heading { align-items: flex-start; flex-direction: column; }
  .workspace-heading__actions { align-self: stretch; }
  .workspace-heading__actions .button { flex: 1; }
  .project-strip { align-items: stretch; flex-direction: column; }
  .project-strip__status { margin: 0; padding: 0; white-space: normal; }
  .settings-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .settings-panel__footer { align-items: stretch; flex-direction: column; }
  .settings-panel__footer .button { width: 100%; }
  .warehouse-add { grid-template-columns: 1fr 1fr; }
  .warehouse-add .button { grid-column: 1 / -1; }
  .result-header { align-items: flex-start; flex-direction: column; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stock-usage { min-width: min(100%, 210px); }
  .layout-card__details { grid-template-columns: 1fr; }
  .layout-totals { grid-template-columns: repeat(2, 1fr); text-align: left; }
  .site-footer { padding-inline: 15px; flex-direction: column; }
  .modal--auth { grid-template-columns: 1fr; }
  .auth-visual { display: none; }
  .auth-form-wrap { padding: 36px 24px 26px; }
}

@media (max-width: 480px) {
  .topbar__actions .button--ghost { display: none !important; }
  .brand__mark { width: 31px; height: 31px; }
  .mode-nav__inner { grid-template-columns: repeat(3, minmax(194px, 1fr)); }
  .mode-tab { padding: 11px 40px 11px 11px; }
  .mode-tab__icon { width: 31px; height: 31px; }
  .panel, .settings-panel { padding: 15px; }
  .panel__header { align-items: flex-start; }
  .panel__tools { align-items: flex-end; flex-direction: column-reverse; }
  .settings-grid, .settings-grid--special { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 7px; }
  .stat-card { padding: 11px; }
  .stat-card__value { font-size: 17px; }
  .layout-card { padding: 13px; }
  .layout-bar { height: 38px; }
  .modal-backdrop { padding: 10px; }
  .modal--compact { padding: 22px 17px; }
}

@page { size: A4 portrait; margin: 12mm; }

@media (max-width: 620px) {
  .stock-breakdown__heading { align-items: flex-start; }
  .stock-breakdown__row { grid-template-columns: 1.25fr .9fr .7fr; gap: 8px; }
  .stock-breakdown__row > :nth-child(4) { display: none; }
  .stock-breakdown__row--header > :nth-child(4) { display: none; }
}

@media print {
  html, body { background: #fff; color: #000; font-size: 10pt; }
  .no-print, .topbar, .mode-nav, .site-footer, .workspace { display: none !important; }
  .main-content { max-width: none; padding: 0; }
  .result-section { display: block !important; margin: 0; }
  .result-header { margin: 0 0 5mm; }
  .result-header h2 { font-size: 18pt; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 2.5mm; }
  .stat-card { padding: 3mm; border-color: #bbb; box-shadow: none; }
  .stat-card__value { font-size: 13pt; }
  .stock-breakdown { margin-top: 3mm; padding: 3mm; border-color: #bbb; box-shadow: none; break-inside: avoid-page; }
  .stock-breakdown__heading { min-height: 0; padding: 2.2mm 3mm; }
  .stock-breakdown__row { min-height: 0; padding: 1.7mm 3mm; gap: 3mm; grid-template-columns: 1.5fr .8fr .7fr .8fr; }
  .stock-usage { min-width: 44mm; padding: 2mm; border-color: #bbb; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .result-legend { margin-top: 2.5mm; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .diagnostic-note { display: none !important; }
  .layout-list { margin-top: 5mm; gap: 4mm; }
  .layout-card { padding: 4mm; border-color: #aaa; box-shadow: none; break-inside: avoid-page; page-break-inside: avoid; }
  .layout-bar { height: 10mm; border-color: #888; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .bar-segment { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .cut-chip { border-color: #bbb; }
}

/* Defensive shrink rules: tables may scroll inside cards, never widen the page. */
.panel, .settings-panel, .input-grid > *, .warehouse-grid > *, .special-grid > * { min-width: 0; }
.data-table-wrap { width: 100%; max-width: 100%; }

@media (max-width: 1000px) {
  .input-grid, .warehouse-grid, .special-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 760px) {
  .field--project { flex: none; width: 100%; }
}

/* Warehouse v1 */
.field--material { flex: 0 1 320px; }
.warehouse-add--v1 { grid-template-columns: minmax(180px, 1.4fr) minmax(110px, .7fr) 105px minmax(160px, 1fr) auto; }
.warehouse-material-group { display: grid; gap: 7px; }
.warehouse-material-group + .warehouse-material-group { margin-top: 14px; }
.warehouse-material-group__title { padding: 8px 10px; border-radius: 9px; display: flex; align-items: center; justify-content: space-between; gap: 12px; background: #fff7ec; color: #8a5316; }
.warehouse-material-group__title strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.warehouse-material-group__title span { flex: none; color: #a56b2a; font-size: 11px; font-weight: 750; }
.warehouse-commit-summary { margin: 12px 0; padding: 11px 12px; border-radius: 10px; background: var(--warehouse-soft); color: #7c4a13; font-size: 12px; }
.warehouse-commit-list { display: grid; gap: 8px; max-height: 320px; overflow: auto; }
.warehouse-commit-item { padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; display: flex; align-items: center; gap: 11px; cursor: pointer; }
.warehouse-commit-item:hover { border-color: #efb66f; background: #fffaf4; }
.warehouse-commit-item input { width: 17px; height: 17px; accent-color: var(--warehouse); }
.warehouse-commit-item span { display: grid; gap: 2px; }
.warehouse-commit-item strong { color: #253047; }
.warehouse-commit-item small { color: var(--muted); }

@media (max-width: 1100px) {
  .warehouse-add--v1 { grid-template-columns: 1fr 120px 105px; }
  .warehouse-add--v1 .field--warehouse-material,
  .warehouse-add--v1 .field--warehouse-note { grid-column: span 3; }
  .warehouse-add--v1 .button { grid-column: 3; }
}

@media (max-width: 760px) {
  .field--material { width: 100%; flex: none; }
  .warehouse-add--v1 { grid-template-columns: 1fr 1fr; }
  .warehouse-add--v1 .field--warehouse-material,
  .warehouse-add--v1 .field--warehouse-note,
  .warehouse-add--v1 .button { grid-column: 1 / -1; }
}
.strategy-hint { margin-top: -2px; padding: 9px 10px; border-left: 3px solid var(--warehouse); border-radius: 0 8px 8px 0; background: #fffaf4; color: #80572c; font-size: 11px; line-height: 1.45; }

.warehouse-add--v1 { grid-template-columns: minmax(160px, 1.5fr) 110px minmax(130px, auto); }
.warehouse-add--v1 .field--warehouse-material { grid-column: 1 / 3; grid-row: 1; }
.warehouse-add--v1 .field--warehouse-note { grid-column: 3; grid-row: 1; }
.warehouse-add--v1 .field--warehouse-length { grid-column: 1; grid-row: 2; }
.warehouse-add--v1 .field--warehouse-quantity { grid-column: 2; grid-row: 2; }
.warehouse-add--v1 .button { grid-column: 3; grid-row: 2; }
@media (max-width: 1100px) {
  .warehouse-add--v1 { grid-template-columns: minmax(0, 1fr) minmax(100px, .55fr); }
  .warehouse-add--v1 .field--warehouse-material,
  .warehouse-add--v1 .field--warehouse-note,
  .warehouse-add--v1 .field--warehouse-length,
  .warehouse-add--v1 .field--warehouse-quantity,
  .warehouse-add--v1 .button { grid-column: auto; grid-row: auto; }
  .warehouse-add--v1 .field--warehouse-material,
  .warehouse-add--v1 .field--warehouse-note,
  .warehouse-add--v1 .button { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
  .warehouse-add--v1 { grid-template-columns: 1fr 1fr; }
}

/* Iteration 8: independent workspaces and warehouse material positions */
.button--warehouse-soft { background: var(--warehouse-soft); color: #8a5316; border: 1px solid #f2cf9f; }
.button--warehouse-soft:hover { background: #ffefd9; }
.button--special-soft { background: var(--special-soft); color: #6842a0; border: 1px solid #dac7f4; }
.button--special-soft:hover { background: #f1e8ff; }

.warehouse-app { display: grid; grid-template-columns: minmax(250px, 310px) minmax(0, 1fr); gap: 18px; align-items: start; }
.warehouse-materials-panel { position: sticky; top: 92px; }
.material-create-form { display: grid; gap: 9px; margin-top: 14px; }
.warehouse-material-list { display: grid; gap: 8px; margin-top: 14px; max-height: 520px; overflow: auto; }
.warehouse-material-card { width: 100%; border: 1px solid var(--line); background: #fff; border-radius: 12px; padding: 11px 12px; display: flex; align-items: center; justify-content: space-between; gap: 12px; text-align: left; cursor: pointer; transition: .15s ease; }
.warehouse-material-card:hover { border-color: #edb66f; background: #fffaf4; }
.warehouse-material-card.is-active { border-color: var(--warehouse); background: var(--warehouse-soft); box-shadow: 0 0 0 2px rgba(228, 139, 44, .12); }
.warehouse-material-card > span { min-width: 0; display: grid; gap: 3px; }
.warehouse-material-card strong { color: #263047; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.warehouse-material-card small { color: var(--muted); font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.warehouse-material-card b { min-width: 28px; height: 28px; border-radius: 999px; display: grid; place-items: center; color: #8a5316; background: #fff; font-size: 11px; }
.warehouse-main, .warehouse-selected-workspace { min-width: 0; display: grid; gap: 16px; }
.warehouse-empty-workspace { min-height: 240px; display: grid; align-content: center; justify-items: center; text-align: center; gap: 10px; color: var(--muted); }
.warehouse-empty-workspace h2 { color: var(--text); margin: 0; }
.warehouse-empty-workspace p { max-width: 520px; margin: 0; }
.material-workspace-header { display: flex; align-items: center; justify-content: space-between; gap: 18px; border-color: #f0c78f; background: linear-gradient(135deg, #fffaf3, #fff); }
.material-workspace-header h2 { margin: 2px 0 3px; }
.material-workspace-header p { margin: 0; }
.warehouse-add--position { grid-template-columns: minmax(120px, .8fr) 110px minmax(180px, 1.2fr) auto; }
.project-strip--warehouse, .project-strip--special { margin-top: 0; }
.field--strategy { flex: 0 1 370px; }
.settings-panel--warehouse { border-color: #f0c78f; }
.settings-panel--special { border-color: #d7c4ef; }
.special-workspace-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr); gap: 18px; }

.copy-options { display: grid; gap: 9px; margin: 16px 0; }
.copy-options label { border: 1px solid var(--line); border-radius: 11px; padding: 11px 12px; display: flex; align-items: center; gap: 11px; cursor: pointer; }
.copy-options label:hover { background: #f8fafc; }
.copy-options input { width: 18px; height: 18px; accent-color: var(--quick); }
.copy-options span { display: grid; gap: 2px; }
.copy-options strong { color: var(--text); }
.copy-options small { color: var(--muted); }

@media (max-width: 1050px) {
  .warehouse-app { grid-template-columns: minmax(0, 1fr); }
  .warehouse-materials-panel { position: static; }
  .warehouse-material-list { grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: none; }
  .special-workspace-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 760px) {
  .warehouse-material-list { grid-template-columns: minmax(0, 1fr); }
  .warehouse-add--position { grid-template-columns: 1fr 1fr; }
  .warehouse-add--position .field:nth-child(3), .warehouse-add--position .button { grid-column: 1 / -1; }
  .material-workspace-header { align-items: flex-start; flex-direction: column; }
  .workspace-heading .button--warehouse-soft, .workspace-heading .button--special-soft { width: 100%; }
}
@media (max-width: 760px) {
  .field--strategy { flex: none; width: 100%; }
}

/* Iteration 9: simplified warehouse workspace */
.material-create-form--expanded { display: grid; grid-template-columns: minmax(0, 1fr) minmax(110px, .62fr) 92px; gap: 9px; align-items: end; }
.material-create-form--expanded .field--wide,
.material-create-form--expanded .button { grid-column: 1 / -1; }
.inventory-panel { overflow: hidden; }
.inventory-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.inventory-section { min-width: 0; padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.inventory-section--stock { box-shadow: inset 0 3px 0 #e98212; }
.inventory-section--remnant { box-shadow: inset 0 3px 0 #4c9a62; }
.inventory-section__head { margin-bottom: 12px; display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.inventory-section__head > div { display: grid; gap: 2px; }
.inventory-section__head strong { color: #253047; }
.inventory-section__head small { color: var(--muted); font-size: 11px; line-height: 1.35; }
.inventory-section__head b { flex: none; padding: 4px 8px; border-radius: 999px; background: #f4f6f8; color: #475467; font-size: 11px; }
.inventory-section .warehouse-add { margin-bottom: 12px; padding: 10px; grid-template-columns: minmax(0, 1fr) 92px auto; }
.warehouse-empty--compact { padding: 16px 10px; }
.warehouse-parts-panel { min-width: 0; }
.inline-validation { margin-top: 10px; padding: 9px 11px; border: 1px solid #f2b8b2; border-radius: 9px; background: #fff4f2; color: #a8271c; font-size: 11px; font-weight: 650; }
.data-row--invalid td { background: #fff7f6; }
.data-row--invalid input { border-color: #dc5448 !important; background: #fffafa; color: #9b2c24; }
.row-field-error { display: block; margin-top: 3px; color: #b42318; font-size: 9px; font-weight: 700; line-height: 1.2; }
.stock-breakdown__row--warehouse_stock { box-shadow: inset 3px 0 0 var(--warehouse); }
.stock-breakdown__row--warehouse_remnant { box-shadow: inset 3px 0 0 #4c9a62; }

@media (max-width: 980px) {
  .inventory-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 620px) {
  .material-create-form--expanded { grid-template-columns: 1fr 1fr; }
  .material-create-form--expanded .field--wide,
  .material-create-form--expanded .button { grid-column: 1 / -1; }
  .inventory-section { padding: 12px; }
  .inventory-section .warehouse-add { grid-template-columns: 1fr 1fr; }
  .inventory-section .warehouse-add .button { grid-column: 1 / -1; }
}
.material-create-form--expanded { grid-template-columns: minmax(0, 1.25fr) minmax(92px, .75fr); }
.material-create-form--expanded .field--wide,
.material-create-form--expanded .button { grid-column: 1 / -1; }

/* Iteration 10: simplified position-first warehouse navigation */
.workspace-heading__actions { display: flex; flex-wrap: wrap; gap: 9px; }
.warehouse-switcher { margin-bottom: 16px; display: flex; align-items: end; justify-content: space-between; gap: 18px; border-color: #f0c78f; background: linear-gradient(135deg, #fffaf3, #fff); }
.warehouse-switcher__select { flex: 1 1 460px; }
.warehouse-switcher__select select { font-weight: 720; }
.warehouse-switcher__summary { flex: 1 1 360px; color: var(--muted); font-size: 12px; text-align: right; }
.warehouse-selected-workspace { display: grid; gap: 16px; }
.material-header-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.empty-actions { margin-top: 8px; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.transfer-hint { margin: -2px 0 12px; padding: 9px 11px; border-radius: 9px; background: var(--warehouse-soft); color: #8a5316; font-size: 11px; }
.text-button--warehouse { color: var(--warehouse-dark); }
.text-button--warehouse:hover { color: #8a4505; }
.warehouse-item__actions { flex: none; display: flex; align-items: center; gap: 5px; }
.item-action { padding: 5px 7px; border: 0; border-radius: 7px; background: #f5f7fa; color: #667085; font-size: 10px; font-weight: 700; }
.item-action:hover { background: var(--warehouse-soft); color: var(--warehouse-dark); }
.modal--warehouse-create { width: min(100%, 650px); }
.create-stock-head { margin-top: 15px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.create-stock-list { margin-top: 8px; display: grid; gap: 8px; }
.create-stock-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(110px, .55fr) 30px; gap: 8px; align-items: center; }
.create-stock-row input { width: 100%; min-height: 40px; padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: 9px; }
.copy-create-option { margin-top: 15px; padding: 11px 12px; border: 1px solid #f0c78f; border-radius: 11px; display: flex; align-items: flex-start; gap: 10px; background: #fffaf3; cursor: pointer; }
.copy-create-option input { width: 17px; height: 17px; margin-top: 2px; accent-color: var(--warehouse); }
.copy-create-option span { display: grid; gap: 2px; }
.copy-create-option small { color: var(--muted); }
.form-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }

.stock-breakdown__row { grid-template-columns: minmax(150px, 1.35fr) minmax(130px, 1fr) minmax(90px, .65fr) minmax(90px, .65fr) minmax(100px, .75fr); }
.stock-breakdown__row:not(.stock-breakdown__row--header) > span:nth-child(2) { color: #667085; }

@media (max-width: 760px) {
  .warehouse-switcher { align-items: stretch; flex-direction: column; }
  .warehouse-switcher__summary { text-align: left; }
  .material-header-actions { width: 100%; }
  .workspace-heading__actions { width: 100%; }
  .workspace-heading__actions .button { flex: 1 1 220px; }
}

@media (max-width: 620px) {
  .create-stock-row { grid-template-columns: 1fr 105px 28px; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .stock-breakdown__row { grid-template-columns: 1.15fr .8fr .65fr; }
  .stock-breakdown__row > :nth-child(2),
  .stock-breakdown__row > :nth-child(5),
  .stock-breakdown__row--header > :nth-child(2),
  .stock-breakdown__row--header > :nth-child(5) { display: none; }
}

@media print {
  .stock-breakdown__row { grid-template-columns: 1.35fr 1fr .65fr .65fr .75fr; }
}

/* Iteration 11: release UI foundation and language selector */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.language-picker { position: relative; flex: none; }
.language-picker select {
  min-height: 34px;
  max-width: 126px;
  padding: 6px 30px 6px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: #475467;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.language-picker select:hover,
.language-picker select:focus { border-color: var(--line-strong); outline: none; }
.site-footer {
  align-items: center;
  color: #7c8799;
  font-size: 11px;
}
.site-footer__main,
.site-footer__links { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 14px; }
.site-footer__links { justify-content: flex-end; }
.site-footer a { color: #667085; text-decoration: none; }
.site-footer a:hover { color: #344054; text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 760px) {
  .language-picker select { max-width: 105px; }
  .account-chip { display: none !important; }
  .site-footer__links { justify-content: flex-start; }
}

@media (max-width: 520px) {
  .topbar__inner { gap: 10px; }
  .brand__text small { display: none; }
  .brand__mark { width: 31px; height: 31px; }
  .topbar__actions { gap: 6px; }
  .language-picker select { width: 84px; max-width: 84px; padding-inline: 7px 22px; }
  .button--small { padding-inline: 9px; }
}

/* Kerfexa 1.2.1: print metadata, calculation feedback and warehouse action */
.print-only { display: none !important; }
.result-print-meta { margin: 1mm 0 1.5mm !important; color: #667085; font-size: 10pt; }

.button--warehouse-commit {
  min-height: 48px;
  padding-inline: 20px;
  border-color: var(--warehouse);
  background: var(--warehouse);
  color: #fff;
  box-shadow: 0 10px 26px rgba(233, 130, 18, .28);
}
.button--warehouse-commit:hover:not(:disabled) { background: var(--warehouse-dark); border-color: var(--warehouse-dark); }
.button--warehouse-commit.is-attention { animation: warehouseCommitAttention 1.35s ease-in-out 6; }
@keyframes warehouseCommitAttention {
  0%, 100% { transform: translateY(0); box-shadow: 0 10px 26px rgba(233, 130, 18, .24), 0 0 0 0 rgba(233, 130, 18, .26); }
  50% { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(233, 130, 18, .32), 0 0 0 8px rgba(233, 130, 18, 0); }
}

body.is-calculating { overflow: hidden; }
.calculation-overlay {
  --calculation-color: var(--quick);
  position: fixed;
  inset: 0;
  z-index: 120;
  padding: 20px;
  display: grid;
  place-items: center;
  background: rgba(9, 15, 27, .58);
  backdrop-filter: blur(10px);
}
.calculation-overlay[data-mode="warehouse"] { --calculation-color: var(--warehouse); }
.calculation-overlay[data-mode="special"] { --calculation-color: var(--special); }
.calculation-overlay__card {
  width: min(100%, 520px);
  padding: 27px 28px 24px;
  border: 1px solid rgba(255,255,255,.32);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 30px 90px rgba(0,0,0,.3);
  text-align: center;
}
.calculation-overlay__card .eyebrow { color: var(--calculation-color); }
.calculation-overlay__card h2 { margin: 5px 0 6px; font-size: 24px; letter-spacing: -.025em; }
.calculation-overlay__card > p:not(.eyebrow) { min-height: 24px; margin: 0; color: var(--muted); }
.calculation-animation { width: min(100%, 390px); margin: -4px auto 7px; }
.calculation-animation svg { width: 100%; height: auto; overflow: visible; }
.calculation-animation__stock { fill: color-mix(in srgb, var(--calculation-color) 18%, #e7ebf1); stroke: color-mix(in srgb, var(--calculation-color) 46%, #cfd7e3); stroke-width: 2; }
.calculation-animation__cut { fill: none; stroke: rgba(23,32,51,.24); stroke-width: 2; stroke-dasharray: 4 5; }
.calculation-animation__blade { fill: #fff; stroke: #172033; stroke-width: 5; }
.calculation-animation__hub { fill: var(--calculation-color); }
.calculation-animation__teeth { fill: none; stroke: #172033; stroke-width: 5; stroke-linecap: round; }
.calculation-progress { height: 8px; margin-top: 18px; overflow: hidden; border-radius: 99px; background: #edf0f4; }
.calculation-progress span { display: block; width: 42%; height: 100%; border-radius: inherit; background: var(--calculation-color); animation: calculationProgress 1.45s ease-in-out infinite; }
@keyframes calculationProgress {
  0% { transform: translateX(-110%); }
  50% { transform: translateX(95%); }
  100% { transform: translateX(245%); }
}
.calculation-overlay__meta { margin-top: 11px; display: flex; justify-content: space-between; gap: 16px; color: #98a2b3; font-size: 10px; text-align: left; }
.calculation-overlay__meta span:last-child { text-align: right; }

@media (max-width: 560px) {
  .calculation-overlay__card { padding: 21px 17px 19px; }
  .calculation-overlay__card h2 { font-size: 21px; }
  .calculation-overlay__meta { flex-direction: column; gap: 3px; }
  .calculation-overlay__meta span:last-child { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  .button--warehouse-commit.is-attention,
  .calculation-progress span { animation: none; }
  .calculation-progress span { width: 100%; opacity: .65; }
}

@media print {
  .print-only { display: block !important; }
  .result-print-meta { color: #555 !important; }
}