:root {
    --bg: #f4f5f7;
    --panel: #ffffff;
    --border: #e2e4e9;
    --text: #1f2430;
    --text-muted: #6b7280;
    --brand: #3C3C3B;
    --brand-dark: #2A2A29;
    --ok-bg: #e7f7ec;
    --ok-text: #1e7e42;
    --error-bg: #fdeaea;
    --error-text: #b3261e;
    --warn-bg: #fff4e0;
    --warn-text: #9a5b00;
    --neutral-bg: #eef0f3;
    --neutral-text: #4b5563;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
}

.topbar {
    background: linear-gradient(135deg, var(--brand-dark), var(--brand));
    color: #fff;
    padding: 18px 28px;
}

.topbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 14px;
}

.topbar h1 {
    font-size: 20px;
    margin: 0;
    font-weight: 600;
}

.portal-badge {
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 999px;
    padding: 4px 12px;
    font-size: 12px;
    letter-spacing: 0.04em;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 28px 60px;
}

.filters {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
    margin-bottom: 14px;
}

.field { display: flex; flex-direction: column; gap: 6px; }

.field label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.field input, .field select {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 14px;
    color: var(--text);
    background: #fff;
    min-width: 160px;
}

.field.actions { flex-direction: row; gap: 8px; }

.multiselect { position: relative; }

.multiselect-toggle {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 14px;
    font-weight: 400;
    color: var(--text);
    background: #fff;
    min-width: 160px;
    text-align: left;
    cursor: pointer;
}
.multiselect-toggle:hover { border-color: var(--brand); }
.multiselect-toggle::after {
    content: "▾";
    float: right;
    color: var(--text-muted);
}

.multiselect-panel {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    z-index: 20;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    min-width: 220px;
    max-width: 320px;
    padding: 8px;
}

.multiselect-actions {
    display: flex;
    gap: 6px;
    padding-bottom: 6px;
    margin-bottom: 6px;
    border-bottom: 1px solid var(--border);
}
.multiselect-actions button {
    background: none;
    border: none;
    color: var(--brand);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 6px;
    cursor: pointer;
}
.multiselect-actions button:hover { text-decoration: underline; }

.multiselect-list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 240px;
    overflow-y: auto;
}
.multiselect-list li { padding: 2px 0; }
.multiselect-list label {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 5px 6px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 400;
    text-transform: none;
    letter-spacing: normal;
    color: var(--text);
    cursor: pointer;
}
.multiselect-list label span { flex: 1 1 auto; min-width: 0; word-break: break-word; }
.multiselect-list input[type="checkbox"] { margin: 3px 0 0; min-width: 0; width: auto; flex-shrink: 0; }
.multiselect-list label:hover { background: var(--neutral-bg); }

button, .btn-secondary {
    border-radius: 8px;
    padding: 9px 16px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

button[type="submit"] {
    background: var(--brand);
    color: #fff;
}
button[type="submit"]:hover { background: var(--brand-dark); }

.btn-secondary {
    background: #fff;
    color: var(--text);
    border-color: var(--border);
}
.btn-secondary:hover { background: var(--neutral-bg); }

.quick-ranges {
    display: flex;
    gap: 8px;
    margin-bottom: 18px;
}
.quick-ranges button, .quick-ranges a {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 12px;
    color: var(--text-muted);
    cursor: pointer;
    text-decoration: none;
}
.quick-ranges button:hover, .quick-ranges a:hover {
    border-color: var(--brand);
    color: var(--brand);
}

.summary {
    color: var(--text-muted);
    font-size: 13px;
    margin: 0 0 10px;
}

.table-wrap {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

/* Tarjetas: solo se muestran en móvil (ver media query al final) */
.cards-wrap { display: none; }

.log-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-bottom: 10px;
}

.log-card-top {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.log-card-panel {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.log-card-detail { font-size: 13px; line-height: 1.6; }

.log-card-meta {
    margin: 10px 0 0;
    padding-top: 10px;
    border-top: 1px solid var(--border);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 6px 12px;
    font-size: 12px;
}
.log-card-meta dt { color: var(--text-muted); font-weight: 600; }
.log-card-meta dd { margin: 0; color: var(--text); word-break: break-word; }

table { width: 100%; border-collapse: collapse; }

thead th {
    text-align: left;
    background: #fafbfc;
    color: var(--text-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

tbody td {
    padding: 11px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafbfc; }

.nowrap { white-space: nowrap; }
.muted { color: var(--text-muted); font-size: 12px; }
.empty { text-align: center; color: var(--text-muted); padding: 40px 0; }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}
.badge-ok { background: var(--ok-bg); color: var(--ok-text); }
.badge-error { background: var(--error-bg); color: var(--error-text); }
.badge-warn { background: var(--warn-bg); color: var(--warn-text); }
.badge-neutral { background: var(--neutral-bg); color: var(--neutral-text); }

.detail-cell { max-width: 480px; }
.config-key {
    display: inline-block;
    font-family: Consolas, monospace;
    font-size: 12px;
    background: var(--neutral-bg);
    color: var(--text);
    padding: 2px 7px;
    border-radius: 6px;
    margin-right: 8px;
}
.stat {
    display: inline-block;
    font-size: 12px;
    color: var(--text-muted);
    margin-right: 10px;
}
.stat-del { color: var(--error-text); }
.stat-ins { color: var(--ok-text); }
.stat-warn { color: var(--warn-text); }
.error-msg { color: var(--error-text); font-size: 13px; }

.detail-ext-btn {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    margin-left: 2px;
    padding: 2px 9px;
    font-size: 12px;
    font-weight: 600;
    color: var(--brand);
    background: var(--neutral-bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    cursor: pointer;
    vertical-align: middle;
}
.detail-ext-btn:hover { border-color: var(--brand); background: #fff; }

/* ------------------------------------------------------------------
   Modal: detalle de SKUs modificados (detail_ext)
   ------------------------------------------------------------------ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 17, 21, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 100;
}
.modal-overlay[hidden] { display: none; }

.modal-box {
    background: var(--panel);
    border-radius: var(--radius);
    max-width: 560px;
    width: 100%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 15px; margin: 0; color: var(--text); }
.modal-close {
    border: none;
    background: none;
    font-size: 22px;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0 4px;
}
.modal-close:hover { color: var(--text); }

.modal-body { padding: 12px 20px 20px; overflow-y: auto; }

.modal-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.modal-table th {
    text-align: left;
    color: var(--text-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
}
.modal-table td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
}
.modal-table tr:last-child td { border-bottom: none; }
.modal-qty-up { color: var(--ok-text); font-weight: 600; }
.modal-qty-down { color: var(--error-text); font-weight: 600; }

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 18px;
    font-size: 13px;
    color: var(--text-muted);
}
.pagination a {
    color: var(--brand);
    text-decoration: none;
    font-weight: 600;
}
.pagination a:hover { text-decoration: underline; }

@media (max-width: 720px) {
    .filters { flex-direction: column; align-items: stretch; }
    .field input, .field select, .multiselect-toggle { min-width: 0; width: 100%; }
    .multiselect-panel { left: 0; right: 0; max-width: none; }
    main { padding: 16px; }
    .topbar { padding: 16px 18px; }
    .topbar h1 { font-size: 17px; }

    /* En móvil, tarjetas en vez de tabla con scroll horizontal ilegible */
    .table-wrap { display: none; }
    .cards-wrap { display: block; }
}

/* ------------------------------------------------------------------
   Topbar: navegación de usuario (Usuarios / usuario conectado / salir)
   ------------------------------------------------------------------ */
.topbar-inner { flex-wrap: wrap; }
.topbar-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 13px;
}
.topbar-nav a {
    color: #fff;
    text-decoration: none;
    opacity: 0.9;
}
.topbar-nav a:hover { opacity: 1; text-decoration: underline; }
.topbar-user {
    color: rgba(255, 255, 255, 0.75);
    font-weight: 600;
}

/* ------------------------------------------------------------------
   Login / alta del primer usuario
   ------------------------------------------------------------------ */
.auth-body { background: var(--bg); }
.auth-main {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.auth-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    max-width: 380px;
    width: 100%;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}
.auth-title { font-size: 18px; margin: 0 0 6px; color: var(--text); }
.auth-subtitle { font-size: 13px; color: var(--text-muted); margin: 0 0 18px; }
.auth-help { font-size: 12px; color: var(--text-muted); margin: 8px 0 18px; }

.auth-error {
    background: var(--error-bg);
    color: var(--error-text);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    margin: 0 0 16px;
}
.auth-notice {
    background: var(--ok-bg);
    color: var(--ok-text);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    margin: 0 0 16px;
}

.auth-form { display: flex; flex-direction: column; gap: 14px; }
.auth-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.auth-form input {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 14px;
    color: var(--text);
    background: #fff;
    text-transform: none;
    letter-spacing: normal;
    font-weight: 400;
}
.auth-form button[type="submit"] { width: 100%; justify-content: center; }
.auth-actions { display: flex; gap: 8px; }
.auth-actions button { flex: 1 1 auto; justify-content: center; }
.auth-form-inline { flex-direction: row; flex-wrap: wrap; align-items: flex-end; }
.auth-form-inline label { flex: 1 1 160px; }
.auth-form-inline button { flex: 0 0 auto; }

.field-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin: 0 0 8px;
}

.otp-boxes {
    display: flex;
    gap: 8px;
    justify-content: center;
}
.otp-box {
    width: 44px;
    height: 52px;
    text-align: center;
    font-size: 22px;
    font-family: Consolas, monospace;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    background: #fff;
    padding: 0;
}
.otp-box:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(60, 60, 59, 0.12);
}

.auth-qr { display: flex; justify-content: center; margin: 4px 0 14px; }
.auth-qr svg { max-width: 220px; height: auto; border: 1px solid var(--border); border-radius: 8px; }
.auth-manual-key {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin: 0 0 4px;
}
.auth-manual-key code {
    background: var(--neutral-bg);
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 13px;
    word-break: break-all;
}

/* ------------------------------------------------------------------
   Gestión de usuarios
   ------------------------------------------------------------------ */
.panel-box {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
    margin-bottom: 18px;
}
.panel-box h2 { font-size: 15px; margin: 0 0 14px; color: var(--text); }

.users-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: flex-start;
}
.inline-form { display: inline-flex; }
.btn-small { padding: 6px 12px; font-size: 12px; }
.btn-danger {
    background: var(--error-bg);
    color: var(--error-text);
    border-color: transparent;
}
.btn-danger:hover { background: #f8d3d1; }
.btn-danger:disabled { opacity: 0.5; cursor: not-allowed; }

.inline-details { position: relative; }
.inline-details summary {
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--brand);
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    list-style: none;
}
.inline-details summary::-webkit-details-marker { display: none; }
.inline-details[open] summary { border-color: var(--brand); }
.inline-details form {
    position: absolute;
    z-index: 10;
    top: calc(100% + 4px);
    left: 0;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    padding: 14px;
    width: 220px;
}

@media (max-width: 720px) {
    .auth-card { padding: 24px 20px; }
    .auth-form-inline { flex-direction: column; align-items: stretch; }
    .inline-details form { position: static; width: 100%; margin-top: 8px; box-shadow: none; }
}