:root {
    --bg: #f7f4ee;
    --bg-soft: #efeae0;
    --card: #ffffff;
    --border: #e6e1d5;
    --text: #23272f;
    --muted: #6b7280;
    --accent: #1d4ed8;
    --accent-hover: #1e40af;
    --accent-2: #6d5bd0;
    --accent-soft: rgba(29, 78, 216, 0.08);
    --ok: #15803d;
    --err: #dc2626;
    --warn: #b45309;
    --ok-soft: rgba(21, 128, 61, 0.1);
    --off-soft: rgba(107, 114, 128, 0.1);
    --section-soft: rgba(99, 102, 241, 0.09);
    --total-soft: rgba(107, 114, 128, 0.07);
    --shadow: 0 10px 30px rgba(31, 41, 55, 0.08);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: linear-gradient(165deg, var(--bg) 0%, var(--bg-soft) 100%);
    color: var(--text);
    min-height: 100vh;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    box-shadow: 0 2px 10px rgba(31, 41, 55, 0.05);
    z-index: 10;
}

.brand { font-weight: 700; font-size: 1.15rem; color: var(--accent); }
.brand i { margin-right: 8px; }
.nav-links { display: flex; align-items: center; gap: 6px; margin-left: 18px; }
.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 8px;
    color: var(--muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.15s ease;
}
.nav-btn:hover { color: var(--accent); background: var(--accent-soft); }
.nav-btn.active { color: var(--accent); background: var(--accent-soft); }
.nav-right { display: flex; align-items: center; gap: 14px; }
.nav-user { color: var(--muted); font-size: 0.9rem; }
.nav-user em { color: var(--accent-2); font-style: normal; font-weight: 600; }

.container { max-width: 1280px; margin: 0 auto; padding: 24px; }

.page-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.page-head h2 { margin: 0; font-size: 1.4rem; color: #111827; }
.toolbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.muted { color: var(--muted); font-size: 0.85rem; }
.select {
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
}
.select:focus { outline: none; border-color: var(--accent); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    color: var(--text);
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.15s ease;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #ffffff; font-weight: 600; }
.btn-primary:hover { background: var(--accent-hover); color: #ffffff; }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: 5px 10px; font-size: 0.8rem; }
.btn-danger:hover { border-color: var(--err); color: var(--err); }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    margin-bottom: 22px;
    box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 14px; font-size: 1.05rem; color: #111827; }

.alert { padding: 12px 16px; border-radius: 10px; margin-bottom: 18px; font-size: 0.92rem; }
.alert-error { background: rgba(220, 38, 38, 0.08); border: 1px solid var(--err); color: #7f1d1d; }
.alert-ok { background: rgba(21, 128, 61, 0.08); border: 1px solid var(--ok); color: #14532d; }
.alert-warn { background: rgba(180, 83, 9, 0.08); border: 1px solid var(--warn); color: #78350f; }

/* Auth */
.auth-wrap { display: flex; justify-content: center; padding-top: 8vh; }
.auth-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 34px 30px;
    width: 380px;
    box-shadow: 0 20px 60px rgba(31, 41, 55, 0.12);
}
.auth-card h1 { margin: 0 0 20px; font-size: 1.3rem; text-align: center; color: var(--accent); }
.auth-links { text-align: center; margin-top: 16px; }
.auth-links a { color: var(--muted); font-size: 0.85rem; text-decoration: none; }
.auth-links a:hover { color: var(--accent); }

.form .field { margin-bottom: 14px; }
.form label { display: block; margin-bottom: 6px; font-size: 0.85rem; color: var(--muted); }
.form input, .form select {
    width: 100%;
    padding: 9px 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: #fbfaf7;
    color: var(--text);
    font-size: 0.95rem;
}
.form input:focus { outline: none; border-color: var(--accent); }
.field.check label { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 0.9rem; }
.field.check input { width: auto; }

/* Dropzone */
.dropzone {
    border: 2px dashed var(--border);
    border-radius: 14px;
    padding: 44px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 22px;
    background: var(--card);
}
.dropzone:hover, .dropzone.drag {
    border-color: var(--accent);
    background: var(--accent-soft);
}
.drop-icon { font-size: 2.6rem; color: var(--accent); margin-bottom: 10px; }
.drop-title { font-weight: 600; margin: 0 0 4px; }
.drop-sub { color: var(--muted); font-size: 0.85rem; margin: 0; }

/* Tables */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.table th, .table td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.empty { text-align: center; color: var(--muted); padding: 24px; }

.section-row td { background: var(--section-soft); font-weight: 700; color: var(--accent-2); }
.total-row td { border-top: 1px solid var(--border); font-weight: 700; color: var(--text); background: var(--total-soft); }
.bold-row td { background: var(--accent-soft); color: #1e3a8a; font-weight: 600; }
.annex-link { color: var(--accent); text-decoration: none; cursor: pointer; font-weight: 600; }
.annex-link:hover { text-decoration: underline; }

.badge { padding: 3px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-off { background: var(--off-soft); color: var(--muted); }

/* Charts */
.charts-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 22px; }
.chart-box { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 16px; min-height: 260px; box-shadow: var(--shadow); }
@media (max-width: 720px) { .charts-panel { grid-template-columns: 1fr; } }

/* Modal */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(31, 41, 55, 0.5);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 6vh 20px;
    z-index: 50;
}
.modal {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    width: min(760px, 100%);
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(31, 41, 55, 0.25);
}
.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.modal-head h3 { margin: 0; font-size: 1.05rem; }
.modal-close { background: none; border: none; color: var(--muted); font-size: 1.6rem; cursor: pointer; line-height: 1; }
.modal-close:hover { color: var(--err); }
.modal-body { padding: 20px; overflow: auto; }

.row-actions { margin-top: 10px; display: flex; justify-content: flex-end; }

/* Tabs */
.tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0;
    flex-wrap: wrap;
}
.tab {
    background: transparent;
    border: 1px solid transparent;
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    padding: 10px 18px;
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}
.tab:hover { color: var(--accent); }
.tab.active {
    color: var(--accent);
    background: var(--card);
    border-color: var(--border);
    border-bottom: 2px solid var(--accent);
    margin-bottom: -1px;
}
.tab-panel[hidden] { display: none !important; }

/* Descargas: meses lado a lado */
.months-scroll { display: flex; gap: 18px; overflow-x: auto; padding-bottom: 10px; align-items: flex-start; }
.month-card {
    min-width: 400px;
    max-width: 480px;
    flex: 0 0 auto;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
    box-shadow: var(--shadow);
}
.month-card h4 { margin: 0 0 10px; font-size: 1rem; color: var(--accent); }
.month-sub { margin: 16px 0 8px; font-size: 0.9rem; color: var(--accent-2); }

/* Multi-empresa */
.company-tag { font-size: 0.9rem; font-weight: 600; color: var(--accent-2); }
.company-form .company-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.company-form .company-row .select { min-width: 240px; }
.company-form .company-row input { flex: 1; min-width: 200px; }

/* Anexos: pestañas */
.annex-tabs { display: flex; gap: 6px; margin-bottom: 14px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.annex-tab {
    background: transparent;
    border: 1px solid transparent;
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    padding: 8px 14px;
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.annex-tab:hover { color: var(--accent); }
.annex-tab.active {
    color: var(--accent);
    background: var(--card);
    border-color: var(--border);
    border-bottom: 2px solid var(--accent);
    margin-bottom: -1px;
}
.annex-panel[hidden] { display: none; }
.annex-subtitle { margin: 0 0 10px; font-size: 0.9rem; color: var(--muted); font-weight: 600; }

/* Tabla ancha (descargas multi-periodo) */
.table-wide { min-width: 900px; }
.table-wide th, .table-wide td { white-space: nowrap; }
.month-card.wide { min-width: 100%; max-width: 100%; }