:root {
    --bg: #f3efe6;
    --panel: #fffdf8;
    --ink: #1f2a24;
    --muted: #5f6b64;
    --line: #d7cfc0;
    --accent: #1f6f54;
    --accent-2: #c45c26;
    --warn: #9a6b00;
    --danger: #9b2c2c;
    --ok: #1f6f54;
    --shadow: 0 10px 30px rgba(31, 42, 36, 0.08);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(31,111,84,.10), transparent 30%),
        linear-gradient(180deg, #f7f3ea, var(--bg));
    min-height: 100vh;
    display: grid;
    grid-template-columns: 240px 1fr;
}

.sidebar {
    background: #16382d;
    color: #edf6f1;
    padding: .9rem .8rem;
    height: 100vh;
    overflow-y: auto;
    position: sticky;
    top: 0;
}
.brand { margin-bottom: .7rem; padding: 0 .5rem; }
.brand strong { display: block; font-size: 1.05rem; line-height: 1.2; }
.brand span { color: #b7d2c6; font-size: .85rem; }
.sidebar .brand img { display: block; max-width: 100%; max-height: 40px; margin-bottom: .25rem; }
.sidebar-top { display: block; }
.nav-toggle {
    display: none;
    border: 1px solid rgba(255,255,255,.28);
    background: rgba(255,255,255,.1);
    color: #fff;
    border-radius: 8px;
    padding: .45rem .75rem;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}
.sidebar nav { display: grid; gap: .1rem; }
.sidebar a {
    color: #d7ebe2;
    text-decoration: none;
    padding: .42rem .75rem;
    border-radius: 8px;
    font-size: .93rem;
    line-height: 1.25;
}
.sidebar a:hover, .sidebar a.active { background: rgba(255,255,255,.12); color: #fff; }
.sidebar a.logout { margin-top: .35rem; color: #f3c9b6; }

body.login-page {
    display: flex;
    grid-template-columns: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}
.login-box {
    width: min(380px, 100%);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 1.6rem;
    box-shadow: var(--shadow);
    display: grid;
    gap: .9rem;
}
.login-box .brand { margin-bottom: .2rem; padding: 0; }
.login-box .brand strong { color: var(--accent); }
.login-box .brand span { color: var(--muted); }
.login-box h1 { margin: 0; font-size: 1.25rem; }
.login-box .btn { width: 100%; }
.login-box .field {
    display: grid;
    gap: .35rem;
    font-size: .9rem;
    color: var(--muted);
}
.login-box .field-label { color: var(--muted); }
.password-field { display: block; position: relative; }
.password-field input {
    width: 100%;
    padding-right: .75rem;
}
.password-field input::-ms-reveal,
.password-field input::-ms-clear {
    display: none !important;
}
/* Checkbox + texto en la misma línea (evita width:100% global del input) */
.login-box label.show-pass {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    gap: .55rem !important;
    margin-top: .35rem;
    font-size: .88rem;
    color: var(--muted);
    cursor: pointer;
}
.login-box label.show-pass input[type="checkbox"] {
    width: 16px !important;
    min-width: 16px !important;
    max-width: 16px !important;
    height: 16px !important;
    margin: 0 !important;
    padding: 0 !important;
    flex: 0 0 16px !important;
    accent-color: var(--accent);
}
.login-box label.show-pass span {
    display: inline !important;
    line-height: 1.2;
    color: var(--muted);
}

.cliente-info {
    background: #eef6f2;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: .85rem 1rem;
    display: grid;
    gap: .25rem;
    font-size: .95rem;
}
.cliente-info[hidden],
.cliente-info.is-hidden {
    display: none !important;
}
.cliente-info strong { margin-bottom: .2rem; }

.content { padding: 1.5rem; min-width: 0; }
img { max-width: 100%; height: auto; }
.page-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
}
.page-head h1 { margin: 0; font-size: 1.6rem; }
.page-head p { margin: .25rem 0 0; color: var(--muted); }
.rep-meta { margin: .35rem 0 0; color: var(--muted); font-size: .92rem; line-height: 1.45; }

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.2rem;
}
.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1rem;
    box-shadow: var(--shadow);
}
.card .label { color: var(--muted); font-size: .85rem; }
.card .value { font-size: 1.45rem; font-weight: 700; margin-top: .35rem; }

.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1rem;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    border: 0;
    border-radius: 10px;
    padding: .65rem 1rem;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    cursor: pointer;
    font-weight: 600;
}
.btn:hover { filter: brightness(1.05); }
.btn-secondary { background: #3d4d45; }
.btn-danger { background: var(--danger); }
.btn-warn { background: var(--accent-2); }
.btn-sm { padding: .4rem .7rem; font-size: .85rem; }

table { width: 100%; border-collapse: collapse; }
th, td {
    padding: .7rem .55rem;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
    font-size: .92rem;
}
th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: .9rem;
}
label { display: grid; gap: .35rem; font-size: .9rem; color: var(--muted); }
input, select, textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: .65rem .75rem;
    font: inherit;
    color: var(--ink);
    background: #fff;
}
textarea { min-height: 80px; resize: vertical; }

.alert {
    padding: .85rem 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-weight: 600;
}
.alert-ok { background: #e5f5ee; color: var(--ok); }
.alert-error { background: #fde8e8; color: var(--danger); }
.alert-warn { background: #fff4d6; color: var(--warn); }

.badge {
    display: inline-block;
    padding: .2rem .55rem;
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 700;
}
.badge-ok { background: #e5f5ee; color: var(--ok); }
.badge-warn { background: #fff4d6; color: var(--warn); }
.badge-danger { background: #fde8e8; color: var(--danger); }
.badge-muted { background: #eee; color: #555; }

.actions { display: flex; gap: .4rem; flex-wrap: wrap; }
.muted { color: var(--muted); }
.right { text-align: right; }
.stack { display: grid; gap: .8rem; }

.detalle-table input { min-width: 90px; }
.detalle-table select { min-width: 180px; }
.doc-totales { display: grid; gap: .2rem; min-width: 190px; margin-left: auto; }
.doc-totales div { display: flex; justify-content: space-between; gap: 1rem; }
.doc-totales .total { font-size: 1.05rem; }

@media (max-width: 900px) {
    body { grid-template-columns: 1fr; }
    .sidebar {
        position: sticky;
        top: 0;
        z-index: 30;
        height: auto;
        min-height: 0;
        overflow: visible;
        padding: .65rem .75rem;
    }
    .sidebar-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: .75rem;
    }
    .brand { margin: 0; min-width: 0; }
    .brand strong { font-size: 1rem; }
    .nav-toggle { display: inline-block; flex: 0 0 auto; }
    .sidebar nav {
        display: none;
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        background: #16382d;
        padding: .35rem .75rem .85rem;
        box-shadow: 0 16px 28px rgba(0,0,0,.22);
        max-height: calc(100vh - 64px);
        overflow-y: auto;
    }
    .sidebar.is-open nav { display: grid; grid-template-columns: 1fr; }
    .sidebar a { padding: .72rem .75rem; }

    .content { padding: 1rem .8rem 1.6rem; }
    .page-head { flex-direction: column; align-items: stretch; }
    .page-head h1 { font-size: 1.35rem; }
    .page-head .actions, .page-head > a.btn { width: 100%; }
    .page-head .btn { text-align: center; }
    .cards { grid-template-columns: 1fr 1fr; gap: .7rem; }
    .card .value { font-size: 1.15rem; }
    .form-grid { grid-template-columns: 1fr; }
    .panel { padding: .85rem; overflow-x: auto; }
    .actions label { min-width: 0 !important; width: 100%; }
    th, td { white-space: nowrap; }
    .btn { min-height: 42px; }
    .doc-totales { margin-left: 0; width: 100%; }

    .detalle-table { width: 100%; min-width: 0; }
    .detalle-table th, .detalle-table td { white-space: normal; }
    .detalle-table thead { display: none; }
    .detalle-table,
    .detalle-table tbody,
    .detalle-table tr,
    .detalle-table td { display: block; width: 100%; }
    .detalle-table tr {
        border: 1px solid var(--line);
        border-radius: 12px;
        padding: .55rem .7rem;
        margin-bottom: .75rem;
        background: #fff;
    }
    .detalle-table td { border: 0; padding: .4rem 0; }
    .detalle-table td::before {
        content: "";
        display: block;
        margin-bottom: .2rem;
        font-size: .72rem;
        font-weight: 700;
        letter-spacing: .03em;
        text-transform: uppercase;
        color: var(--muted);
    }
    .detalle-table td:last-child { text-align: right; }
    .detalle-table td:last-child::before { display: none; }
    .detalle-table input, .detalle-table select { min-width: 0; }
    #tabla_remision td:nth-child(1)::before { content: "Producto"; }
    #tabla_remision td:nth-child(2)::before { content: "Cantidad"; }
    #tabla_remision td:nth-child(3)::before { content: "Precio"; }
    #tabla_remision td:nth-child(4)::before { content: "Descuento %"; }
    #tabla_remision td:nth-child(5)::before { content: "Subtotal"; }
    #tabla_compra td:nth-child(1)::before { content: "Producto"; }
    #tabla_compra td:nth-child(2)::before { content: "Cantidad"; }
    #tabla_compra td:nth-child(3)::before { content: "Costo"; }
    #tabla_compra td:nth-child(4)::before { content: "Subtotal"; }
}

@media (max-width: 480px) {
    body.login-page { padding: .75rem; align-items: flex-start; }
    .login-box { padding: 1.15rem; }
}

@media (max-width: 360px) {
    .cards { grid-template-columns: 1fr; }
}

@media print {
    @page { margin: 12mm; }
    body {
        display: block !important;
        background: #fff !important;
        color: #000 !important;
    }
    .sidebar,
    .no-print,
    .alert,
    form.no-print,
    .page-head .actions,
    .page-head a.btn {
        display: none !important;
    }
    .content {
        padding: 0 !important;
        width: 100% !important;
    }
    .panel, .card, .cards {
        box-shadow: none !important;
        break-inside: avoid;
    }
    a { color: #000; text-decoration: none; }
    .badge { border: 1px solid #999; }
}