:root {
    --color-bg: #f7f7f8;
    --color-surface: #ffffff;
    --color-border: #e3e3e6;
    --color-text: #1f2126;
    --color-muted: #6b7280;
    --color-primary: #2f6fed;
    --color-primary-hover: #2558c4;
    --color-error-bg: #fdecec;
    --color-error-text: #b3261e;
    --color-info-bg: #eaf1ff;
    --color-info-text: #1e4fb8;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* --- Login --- */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.auth-card h1 { font-size: 20px; margin: 0 0 4px; }
.auth-subtitle { color: var(--color-muted); margin: 0 0 24px; font-size: 14px; }

label { display: block; font-size: 13px; font-weight: 600; margin: 16px 0 6px; }

input[type="email"], input[type="password"], input[type="text"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 14px;
}
input:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }

button[type="submit"] {
    margin-top: 24px;
    width: 100%;
    padding: 11px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}
button[type="submit"]:hover { background: var(--color-primary-hover); }

.alert { padding: 10px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 8px; }
.alert-error { background: var(--color-error-bg); color: var(--color-error-text); }
.alert-info { background: var(--color-info-bg); color: var(--color-info-text); }

/* --- App shell --- */
.topbar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand { font-weight: 700; }
.btn-link { background: none; border: none; color: var(--color-muted); cursor: pointer; font-size: 13px; }
.btn-link:hover { color: var(--color-text); }

.content { max-width: 900px; margin: 0 auto; padding: 40px 24px; }

.error-page { max-width: 480px; margin: 80px auto; text-align: center; padding: 0 24px; }
.error-page a { color: var(--color-primary); }

/* --- Etapa 3: empresas / sucursales / bodegas --- */
.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.page-header h1 { margin: 0 0 4px; font-size: 22px; }
.breadcrumbs { font-size: 13px; color: var(--color-muted); margin-bottom: 6px; }
.breadcrumbs a { color: var(--color-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-primary); text-decoration: underline; }

.btn {
    display: inline-block;
    padding: 9px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    background: var(--color-primary);
    color: #fff;
}
.btn:hover { background: var(--color-primary-hover); }
.btn-secondary { background: #fff; color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover { background: var(--color-bg); }
.btn-danger { background: #fff; color: var(--color-error-text); border-color: #f2c7c4; }
.btn-danger:hover { background: var(--color-error-bg); }
.btn-sm { padding: 6px 10px; font-size: 12px; }

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 28px;
    max-width: 640px;
}

table.data-table { width: 100%; border-collapse: collapse; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; }
table.data-table th, table.data-table td { padding: 12px 14px; text-align: left; font-size: 13px; border-bottom: 1px solid var(--color-border); }
table.data-table th { background: var(--color-bg); font-weight: 600; color: var(--color-muted); text-transform: uppercase; font-size: 11px; letter-spacing: 0.03em; }
table.data-table tr:last-child td { border-bottom: none; }
table.data-table td.actions { white-space: nowrap; text-align: right; }
table.data-table td.actions form { display: inline-block; margin-left: 6px; }
table.data-table .muted-row td { color: var(--color-muted); }

.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge-active { background: #e8f6ee; color: #1c7c3f; }
.badge-inactive { background: #f1f1f3; color: #6b7280; }

.empty-state { padding: 40px 20px; text-align: center; color: var(--color-muted); background: var(--color-surface); border: 1px dashed var(--color-border); border-radius: var(--radius); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.form-grid .full { grid-column: 1 / -1; }
.form-actions { margin-top: 24px; display: flex; gap: 10px; }
textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--color-border); border-radius: 8px; font-size: 14px; font-family: inherit; resize: vertical; }

.alert-success { background: #e8f6ee; color: #1c7c3f; }

/* --- Etapa 4: hub de empresa, tablas con más columnas, checkboxes --- */
.hub-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; max-width: 900px; }
.hub-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 18px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    text-decoration: none;
    color: var(--color-text);
}
.hub-card:hover { border-color: var(--color-primary); }
.hub-card strong { font-size: 15px; }
.hub-card span { font-size: 13px; color: var(--color-muted); }

.checkbox-row { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.checkbox-row input[type="checkbox"] { width: auto; }
.checkbox-row label { margin: 0; font-weight: 400; }

table.data-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data-table th.num { text-align: right; }