:root {
    color-scheme: light;
    --ink: #1f2933;
    --muted: #64748b;
    --line: #d7dee8;
    --bg: #f6f8fb;
    --panel: #ffffff;
    --accent: #0f766e;
    --accent-dark: #115e59;
    --warn: #b45309;
    --danger: #b91c1c;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--bs-body-font-family, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif);
    background: var(--bg);
    color: var(--ink);
}

a {
    color: var(--accent-dark);
    text-decoration: none;
}

a:hover {
    color: var(--accent);
}

.topbar {
    min-height: 58px;
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 0.75rem 1.25rem;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
}

.brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--ink);
    white-space: nowrap;
}

.topbar nav {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    flex: 1;
}

.topbar nav a {
    color: var(--muted);
    font-size: 0.95rem;
}

.topbar nav a:hover {
    color: var(--accent-dark);
}

.user {
    color: var(--muted);
    font-size: 0.95rem;
    white-space: nowrap;
}

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 24px auto 60px;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    margin-bottom: 16px;
}

h1 {
    font-size: 2rem;
    margin: 0;
}

h2 {
    font-size: 1.25rem;
    margin: 0 0 1rem;
}

.panel,
.cards article {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 0.75rem;
    padding: 1.25rem;
    box-shadow: 0 1rem 2rem rgba(15, 118, 110, 0.05);
}

.grid {
    display: grid;
    gap: 1rem;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.cards strong {
    display: block;
    font-size: 2rem;
}

.cards span {
    color: var(--muted);
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.tab-button {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    border-radius: 0.75rem;
    padding: 0.65rem 1rem;
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
}

.tab-button.active {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
}

.custom-tab-content {
    margin-top: 0;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.button,
button:not(.btn):not(.btn-close) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
    border-radius: 0.75rem;
    padding: 0 1rem;
    font-weight: 600;
    cursor: pointer;
}

.button.secondary {
    border-color: var(--accent);
    background: #fff;
    color: var(--accent-dark);
}

.button.danger {
    border-color: var(--danger);
    background: var(--danger);
}

form {
    display: grid;
    gap: 1rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

label {
    display: grid;
    gap: 0.35rem;
    color: var(--muted);
    font-size: 0.9rem;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 0.65rem;
    padding: 0.85rem 1rem;
    font: inherit;
    background: #fff;
    color: var(--ink);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: rgba(15, 118, 110, 0.7);
    box-shadow: 0 0 0 0.15rem rgba(15, 118, 110, 0.15);
}

textarea {
    min-height: 100px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid var(--line);
}

th,
td {
    padding: 0.9rem 0.85rem;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    background: #eef3f7;
    font-size: 0.85rem;
    color: #334155;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.num {
    text-align: right;
}

.flash {
    padding: 1rem 1.1rem;
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    background: #dcfce7;
    color: #166534;
}

.flash.error {
    background: #fee2e2;
    color: #991b1b;
}

.item-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: flex-end;
    margin-bottom: 0.75rem;
}

.item-row > label {
    flex: 1 1 120px;
    margin: 0;
}

.item-row > label.col-product {
    flex: 2.5 1 200px;
}

.item-row > label.col-location,
.item-row > label.col-lot {
    flex: 1.8 1 140px;
}

.item-row > label.col-qty,
.item-row > label.col-cost {
    flex: 1 1 110px;
}

.item-row > button.btn-remove-row,
.item-row > button.secondary {
    flex: 0 0 42px !important;
    width: 42px !important;
    min-width: 42px !important;
    height: 42px !important;
    padding: 0 !important;
    margin: 0 !important;
}

.muted {
    color: var(--muted);
}

.login {
    display: grid;
    place-items: center;
    min-height: 100vh;
    background: #eef3f7;
}

.login .panel {
    width: min(390px, calc(100% - 28px));
}

@media (max-width: 760px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
        padding: 0.8rem 1rem;
    }

    .toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .item-row {
        grid-template-columns: 1fr;
        border: 1px solid var(--line);
        padding: 0.75rem;
        border-radius: 0.75rem;
    }
}

@media print {
    .topbar,
    .toolbar .actions,
    form.no-print,
    .no-print {
        display: none !important;
    }

    body {
        background: #fff;
    }

    .container {
        width: 100%;
        margin: 0;
    }

    table {
        font-size: 11px;
    }
}