:root {
  --bg: #f4f7f6;
  --panel: rgba(255,255,255,.92);
  --ink: #17211f;
  --muted: #66736f;
  --line: #dce5e2;
  --brand: #0f766e;
  --brand-dark: #0b5d57;
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --warning: #b54708;
  --warning-bg: #fffaeb;
  --success: #067647;
  --shadow: 0 12px 35px rgba(15, 44, 39, .08);
  --radius: 18px;
}

* { box-sizing: border-box; }
html { font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif; color: var(--ink); background: var(--bg); }
body { margin: 0; min-height: 100vh; position: relative; isolation: isolate; background: var(--bg); }
body::before { content: ""; position: fixed; inset: 70px 0 0; z-index: -1; pointer-events: none; background: url("/static/aaaafei-wallpaper.png?v=2.2.0") center 52% / min(68vw, 860px) auto no-repeat; opacity: .07; }
a { color: var(--brand); text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.topbar { height: 70px; display: flex; align-items: center; justify-content: space-between; padding: 0 max(24px, calc((100vw - 1180px)/2)); background: rgba(255,255,255,.92); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 30; backdrop-filter: blur(12px); }
.brand { color: var(--ink); display: flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { min-width: 48px; height: 38px; display: grid; place-items: center; background: var(--brand); color: white; border-radius: 12px; font-size: 13px; letter-spacing: -.08em; }
.brand-label { display: grid; gap: 2px; line-height: 1.05; }
.edition-badge { color: var(--brand); font-size: 10px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.desktop-nav { display: flex; gap: 6px; }
.desktop-nav a { color: var(--muted); padding: 10px 14px; border-radius: 10px; font-weight: 650; }
.desktop-nav a:hover { color: var(--brand); background: #eaf5f3; }

.container { max-width: 1180px; margin: 0 auto; padding: 36px 24px 100px; }
.auth-container { min-height: calc(100vh - 70px); display: grid; place-items: center; padding-bottom: 40px; }
.auth-card { background: var(--panel); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); width: min(100%, 470px); padding: 36px; }
h1, h2 { margin-top: 0; letter-spacing: -.035em; }
h1 { font-size: clamp(28px, 4vw, 42px); margin-bottom: 8px; }
h2 { font-size: 20px; }
.eyebrow { color: var(--brand); text-transform: uppercase; font-size: 12px; font-weight: 800; letter-spacing: .12em; margin-bottom: 8px; }
.muted { color: var(--muted); line-height: 1.65; }

.page-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-bottom: 24px; }
.page-heading h1 { margin-bottom: 0; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: 0 6px 22px rgba(15,44,39,.04); }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.panel-heading h2 { margin: 0; }

.button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 12px; padding: 10px 16px; font-weight: 750; transition: .15s ease; }
.button:hover { transform: translateY(-1px); }
.button:disabled { opacity: .7; cursor: wait; transform: none; }
.button.primary { color: #fff; background: var(--brand); }
.button.primary:hover { background: var(--brand-dark); }
.button.dark { color: #fff; background: #273633; }
.button.success { color: #fff; background: var(--success); }
.button.danger { color: #fff; background: var(--danger); }
.button.ghost { color: var(--ink); background: white; border-color: var(--line); }
.button.full { width: 100%; }

label { display: grid; gap: 7px; font-size: 14px; font-weight: 700; color: #35413e; }
input, select, textarea { width: 100%; border: 1px solid #cbd8d4; border-radius: 11px; padding: 11px 12px; color: var(--ink); background: white; outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(15,118,110,.12); }
textarea { resize: vertical; }
.form-stack { display: grid; gap: 17px; margin-top: 24px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.span-2 { grid-column: span 2; }
.form-section-title { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--line); padding: 10px 0 11px; margin-top: 5px; }
.form-section-title:first-of-type { margin-top: 0; padding-top: 0; }
.form-section-title strong { font-size: 17px; }
.form-section-title span { color: var(--muted); font-size: 12px; font-weight: 500; }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }

.flash-stack { display: grid; gap: 10px; margin-bottom: 20px; }
.flash { padding: 12px 15px; border-radius: 12px; border: 1px solid var(--line); background: white; font-weight: 650; }
.flash.success { color: var(--success); background: #ecfdf3; border-color: #abefc6; }
.flash.error { color: var(--danger); background: var(--danger-bg); border-color: #fecdca; }

.quick-search { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-bottom: 20px; }
.stats-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 20px; }
.stat { min-height: 142px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; display: flex; flex-direction: column; box-shadow: 0 6px 22px rgba(15,44,39,.04); }
.stat span, .stat small { color: var(--muted); }
.stat strong { font-size: 38px; line-height: 1; margin: auto 0 8px; letter-spacing: -.04em; }
.stat.warning { background: var(--warning-bg); border-color: #fedf89; }
.stat.warning strong { color: var(--warning); }
.content-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
.list-stack { display: grid; }
.list-row { color: var(--ink); display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 13px 0; border-top: 1px solid #edf1f0; }
.list-row:first-child { border-top: 0; }
.list-row div { min-width: 0; }
.list-row strong, .list-row small { display: block; }
.list-row small { color: var(--muted); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.empty { padding: 42px 16px; color: var(--muted); text-align: center; }

.filters { display: grid; grid-template-columns: 2fr 1fr auto auto; gap: 10px; margin-bottom: 16px; align-items: center; }
.check { display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.check input { width: auto; }
.table-panel { padding: 8px 20px; }
.product-list { display: grid; }
.product-row { display: grid; grid-template-columns: minmax(220px,2fr) repeat(3,minmax(100px,1fr)); align-items: center; gap: 18px; color: var(--ink); padding: 17px 4px; border-top: 1px solid #e8eeec; }
.product-row:first-child { border-top: 0; }
.product-row:hover { background: #f8fbfa; }
.product-row.archived { opacity: .55; }
.product-row strong, .product-row small, .product-row span { display: block; }
.product-row small { color: var(--muted); margin-bottom: 4px; }
.product-main small { margin: 5px 0 0; }
.stock { font-weight: 800; white-space: nowrap; }
.stock.low, .low-text { color: var(--danger); }
.delta { font-weight: 850; font-variant-numeric: tabular-nums; }
.delta.positive { color: var(--success); }
.delta.negative { color: var(--danger); }

.detail-grid { display: grid; grid-template-columns: minmax(240px,.7fr) 1.3fr; gap: 20px; margin-bottom: 20px; }
.stock-card { display: flex; flex-direction: column; min-height: 205px; }
.stock-card > span, .stock-card small { color: var(--muted); }
.stock-card > strong { font-size: 62px; line-height: 1; margin: auto 0 8px; letter-spacing: -.06em; }
.badge { align-self: flex-start; margin-top: 14px; padding: 5px 9px; border-radius: 999px; font-size: 12px; font-weight: 800; }
.badge.warning { color: var(--warning); background: var(--warning-bg); }
.metadata { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.metadata div { padding: 9px 0; }
.metadata small, .metadata strong { display: block; }
.metadata small { color: var(--muted); margin-bottom: 6px; }
.adjust-panel { margin-bottom: 20px; }
.adjust-form { display: grid; grid-template-columns: 150px 1fr; gap: 14px; }
.adjust-buttons { grid-column: span 2; display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.movement-list { display: grid; }
.movement-row { color: var(--ink); display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; border-top: 1px solid #e8eeec; }
.movement-row:first-child { border-top: 0; }
.movement-row strong, .movement-row small { display: block; }
.movement-row small { color: var(--muted); margin-top: 4px; }
.movement-numbers { text-align: right; flex: 0 0 auto; }
.notes { margin-top: 20px; }
.notes p { white-space: pre-wrap; line-height: 1.65; color: var(--muted); }
.archive-form { text-align: center; padding: 24px; }
.text-button { border: 0; background: none; color: var(--danger); text-decoration: underline; }

.mobile-nav { display: none; }

@media (max-width: 760px) {
  body::before { inset: 62px 0 68px; background-position: center 42%; background-size: min(118vw, 560px) auto; opacity: .065; }
  .topbar { height: 62px; padding: 0 16px; }
  .desktop-nav { display: none; }
  .container { padding: 24px 14px 100px; }
  .auth-container { padding: 24px 14px; }
  .auth-card { padding: 26px 20px; border-radius: 20px; }
  .page-heading { align-items: center; }
  .page-heading h1 { font-size: 30px; }
  .page-heading .button { padding: 9px 12px; }
  .stats-grid { grid-template-columns: repeat(3,1fr); gap: 8px; }
  .stat { min-height: 115px; padding: 14px 12px; }
  .stat strong { font-size: 30px; }
  .stat span, .stat small { font-size: 11px; }
  .content-grid, .detail-grid { grid-template-columns: 1fr; }
  .panel { padding: 18px 16px; border-radius: 16px; }
  .filters { grid-template-columns: 1fr 1fr; }
  .filters input { grid-column: span 2; }
  .table-panel { padding: 4px 14px; }
  .product-row { grid-template-columns: 1fr auto; gap: 8px 14px; padding: 15px 0; }
  .product-row > div:not(.product-main):not(.stock-wrap) { display: none; }
  .stock-wrap { text-align: right; }
  .form-grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: span 1; }
  .form-section-title { align-items: flex-start; flex-direction: column; gap: 4px; }
  .adjust-form { grid-template-columns: 1fr; }
  .adjust-buttons { grid-column: span 1; grid-template-columns: 1fr 1fr; }
  .adjust-buttons .dark { grid-column: span 2; }
  .movement-row { align-items: flex-start; }
  .movement-row > div:first-child { min-width: 0; }
  .movement-row small { overflow-wrap: anywhere; }
  .mobile-nav { display: grid; grid-template-columns: repeat(5,1fr); position: fixed; z-index: 40; bottom: 0; left: 0; right: 0; padding: 7px 8px calc(7px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.96); border-top: 1px solid var(--line); backdrop-filter: blur(14px); }
  .mobile-nav a { display: grid; place-items: center; gap: 2px; color: var(--muted); font-size: 10px; font-weight: 750; }
  .mobile-nav span { font-size: 21px; line-height: 1; }
  .mobile-nav .add span { width: 38px; height: 30px; display: grid; place-items: center; color: white; background: var(--brand); border-radius: 10px; }
}

@media (max-width: 410px) {
  .quick-search { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat:last-child { grid-column: span 2; }
  .filters { grid-template-columns: 1fr; }
  .filters input { grid-column: span 1; }
  .metadata { grid-template-columns: 1fr 1fr; gap: 8px 16px; }
}