:root {
    color-scheme: light;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #f4f7f6;
    color: #16201e;
    --green: #146356;
    --green-dark: #0d493f;
    --green-soft: #e1f1ec;
    --ink-muted: #5f6d69;
    --line: #ccd7d3;
    --surface: #ffffff;
    --warning: #8a5700;
    --danger: #a63131;
}

* { box-sizing: border-box; }

body { margin: 0; min-height: 100vh; background: #f4f7f6; }

button, input, select { font: inherit; }

.app-header {
    min-height: 58px;
    padding: 8px max(16px, env(safe-area-inset-left));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    color: #fff;
    background: var(--green-dark);
}

.brand { display: inline-flex; align-items: center; gap: 9px; color: inherit; text-decoration: none; font-weight: 750; }
.brand img { width: 34px; height: 34px; border-radius: 6px; }
.network-status { font-size: .86rem; padding: 5px 8px; border: 1px solid rgba(255,255,255,.45); border-radius: 6px; }
.network-status.offline { color: #2f2513; background: #ffd980; border-color: #ffd980; }

.page-shell { width: min(960px, 100%); margin: 0 auto; padding: 22px 16px calc(92px + env(safe-area-inset-bottom)); }
.title-band { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 18px; }
.eyebrow { margin: 0 0 4px; color: var(--green); font-size: .78rem; font-weight: 800; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(1.65rem, 6vw, 2.15rem); letter-spacing: 0; }
h2 { margin: 0 0 5px; font-size: 1.2rem; letter-spacing: 0; }
.subtitle, .section-heading p { margin: 5px 0 0; color: var(--ink-muted); }
.summary { flex: 0 0 auto; min-width: 104px; padding-left: 16px; border-left: 3px solid #e0a12b; text-align: right; }
.summary span { display: block; color: var(--ink-muted); font-size: .78rem; }
.summary strong { font-size: 1.65rem; }

.state-view, .inventory-toolbar, .search-row, .product-list, .bottom-actions { background: var(--surface); border: 1px solid var(--line); border-radius: 7px; }
.state-view { padding: 20px; }
.section-heading { margin-bottom: 18px; }
.field { display: grid; gap: 7px; color: var(--ink-muted); font-size: .88rem; }
.field select, .search-field input { width: 100%; min-height: 48px; padding: 10px 12px; color: var(--ink-muted); background: #fff; border: 1px solid #9eafaa; border-radius: 5px; }
.field select:focus, .search-field input:focus, .quantity-input:focus { outline: 3px solid rgba(20, 99, 86, .18); border-color: var(--green); }
.check-result { min-height: 34px; margin-top: 12px; color: var(--ink-muted); }
.prepared-summary { margin-top: 14px; padding-top: 12px; border-top: 1px solid #e2e8e6; }
.prepared-summary > strong { display: block; margin-bottom: 7px; font-size: .88rem; }
.prepared-warehouse-list { display: grid; gap: 5px; color: var(--ink-muted); font-size: .86rem; }
.prepared-warehouse-row { display: flex; justify-content: space-between; gap: 12px; }

.actions, .bottom-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.bottom-actions { position: fixed; z-index: 5; left: 50%; bottom: 0; width: min(960px, 100%); margin: 0; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); transform: translateX(-50%); border-width: 1px 1px 0; border-radius: 7px 7px 0 0; }
.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 9px 14px; border: 1px solid transparent; border-radius: 5px; font-weight: 700; text-decoration: none; cursor: pointer; }
.button.primary { color: #fff; background: var(--green); }
.button.primary:hover { background: var(--green-dark); }
.button.secondary { color: var(--green-dark); background: #fff; border-color: #9eafaa; }
.button.compact { min-height: 38px; padding: 7px 10px; }
.button:disabled { opacity: .5; cursor: not-allowed; }

.inventory-toolbar { padding: 14px; display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.inventory-toolbar .label, .inventory-toolbar small { display: block; color: var(--ink-muted); font-size: .78rem; }
.inventory-toolbar > .button { flex: 0 0 auto; margin-top: 1.25rem; }
.prepared-warehouse-field { min-width: 0; flex: 1 1 auto; }
.prepared-warehouse-field select { width: min(100%, 420px); min-height: 42px; margin: 3px 0; padding: 7px 10px; color: var(--green-dark); background: #fff; border: 1px solid #9eafaa; border-radius: 5px; font-weight: 750; }
.prepared-warehouse-field select:focus { outline: 3px solid rgba(20, 99, 86, .18); border-color: var(--green); }
.search-row { display: grid; grid-template-columns: minmax(0, 1fr) 46px; gap: 8px; margin-top: 12px; padding: 8px; }
.search-field input { border: 0; }
.icon-button { width: 44px; height: 44px; align-self: center; color: var(--ink-muted); background: #edf2f0; border: 0; border-radius: 5px; font-size: 1.6rem; cursor: pointer; }
.list-meta { display: flex; justify-content: space-between; gap: 12px; padding: 12px 2px 7px; color: var(--ink-muted); font-size: .82rem; }
.product-list { overflow: hidden; }
.product-row { display: grid; grid-template-columns: minmax(0, 1fr) 150px; gap: 14px; padding: 13px; border-bottom: 1px solid #e2e8e6; }
.product-row:last-child { border-bottom: 0; }
.product-name { margin: 0; font-size: 1rem; }
.product-details { margin: 5px 0 0; display: flex; flex-wrap: wrap; gap: 6px 14px; color: var(--ink-muted); font-size: .82rem; }
.quantity-field { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 8px; }
.quantity-input { width: 100%; min-height: 46px; padding: 8px 10px; border: 1px solid #9eafaa; border-radius: 5px; text-align: right; font-size: 1.08rem; }
.unit { min-width: 38px; color: var(--ink-muted); font-size: .82rem; }
.empty { padding: 28px 16px; color: var(--ink-muted); text-align: center; }
.result-limit { margin: 10px 0 0; color: var(--ink-muted); text-align: center; }
.message { margin-bottom: 14px; padding: 11px 13px; color: var(--green-dark); background: var(--green-soft); border-left: 4px solid var(--green); border-radius: 4px; }
.message.warning { color: #4d3408; background: #fff0c8; border-color: var(--warning); }
.message.error { color: #5f1919; background: #fde3e3; border-color: var(--danger); }
.spinner { width: 30px; height: 30px; margin: 4px auto 12px; border: 3px solid #d9e5e1; border-top-color: var(--green); border-radius: 50%; animation: spin .8s linear infinite; }
.state-view > p { margin: 0; color: var(--ink-muted); text-align: center; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 620px) {
    .page-shell { padding-top: 17px; }
    .title-band { align-items: center; }
    .summary { min-width: 82px; }
    .inventory-toolbar { align-items: flex-start; }
    .product-row { grid-template-columns: 1fr; }
    .quantity-field { grid-template-columns: minmax(0, 150px) auto; justify-content: end; }
    .bottom-actions .button { flex: 1 1 150px; }
}