:root {
    --bg: #0f1419;
    --surface: #1a2029;
    --surface-2: #232b36;
    --border: #2e3947;
    --text: #e6edf3;
    --muted: #8b98a5;
    --primary: #2f81f7;
    --primary-hover: #4a91f8;
    --green: #2ea043;
    --red: #f85149;
    --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    font-size: 15px;
}

/* Topbar */
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo {
    font-size: 26px;
    background: var(--primary);
    color: #fff;
    width: 46px; height: 46px;
    display: grid; place-items: center;
    border-radius: 12px;
}
.brand h1 { font-size: 19px; font-weight: 650; }
.brand p { color: var(--muted); font-size: 13px; }

/* Layout */
.container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 28px 24px 80px;
    display: flex;
    flex-direction: column;
    gap: 22px;
}

/* Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.card-head {
    display: flex; align-items: center; gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
}
.card-head h2 { font-size: 16px; font-weight: 600; }
.step {
    background: var(--primary);
    color: #fff;
    width: 26px; height: 26px;
    border-radius: 50%;
    display: grid; place-items: center;
    font-size: 14px; font-weight: 700;
    flex-shrink: 0;
}
.card-body { padding: 20px; }

/* Dropzone */
.dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 38px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}
.dropzone.drag { border-color: var(--primary); background: rgba(47,129,247,.08); }
.dz-title { font-size: 15px; margin-bottom: 6px; }
.dz-sub { color: var(--muted); font-size: 13px; }
.link {
    background: none; border: none; color: var(--primary);
    cursor: pointer; font-size: inherit; text-decoration: underline;
    padding: 0;
}

/* Options */
.options {
    display: flex; align-items: center; flex-wrap: wrap; gap: 20px;
    margin-top: 18px; padding-top: 18px;
    border-top: 1px solid var(--border);
}
.opt { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; }
.opt select {
    background: var(--surface-2); color: var(--text);
    border: 1px solid var(--border); border-radius: 6px;
    padding: 5px 8px; font-size: 14px;
}
.filename { margin-left: auto; color: var(--text); font-size: 13px; font-weight: 500; }

/* Toolbar */
.toolbar {
    display: flex; align-items: flex-end; flex-wrap: wrap; gap: 24px;
    margin-bottom: 18px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.field input {
    background: var(--surface-2); color: var(--text);
    border: 1px solid var(--border); border-radius: 6px;
    padding: 8px 10px; font-size: 14px; min-width: 120px;
}
#loteInput { max-width: 120px; }
.ncm-tools { display: flex; align-items: flex-end; gap: 10px; flex-wrap: wrap; }

/* Buttons */
.btn {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 9px 16px;
    font-size: 14px; font-weight: 500;
    cursor: pointer;
    background: var(--surface-2); color: var(--text);
    transition: background .15s, border-color .15s;
}
.btn:hover { border-color: var(--primary); }
.btn.ghost { background: transparent; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Table */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th {
    background: var(--surface-2); text-align: left;
    padding: 10px 12px; font-weight: 600; white-space: nowrap;
    border-bottom: 1px solid var(--border);
}
tbody td { padding: 8px 12px; border-bottom: 1px solid var(--border); }
tbody tr:last-child td { border-bottom: none; }
tbody tr.sel { background: rgba(47,129,247,.07); }
.col-check { width: 40px; text-align: center; }
td.col-check { text-align: center; }
td input.ncm-cell,
td input.peso-cell {
    background: var(--surface-2); color: var(--text);
    border: 1px solid var(--border); border-radius: 5px;
    padding: 5px 7px; font-size: 13px; width: 120px;
}
td input.peso-cell { width: 90px; }
.mono { font-family: "SF Mono", Consolas, monospace; font-size: 13px; }
.count { margin-top: 12px; color: var(--muted); font-size: 13px; }

/* Actions / output */
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.output {
    margin-top: 16px; padding: 16px;
    background: #0b0f14; border: 1px solid var(--border); border-radius: 8px;
    font-family: "SF Mono", Consolas, monospace; font-size: 13px;
    white-space: pre-wrap; word-break: break-word;
    max-height: 380px; overflow: auto;
}
.result { margin-top: 16px; padding: 14px 16px; border-radius: 8px; font-size: 14px; }
.result.ok  { background: rgba(46,160,67,.12); border: 1px solid var(--green); }
.result.err { background: rgba(248,81,73,.12); border: 1px solid var(--red); }
.result h3 { font-size: 15px; margin-bottom: 6px; }
.result.ok h3 { color: var(--green); }
.result.err h3 { color: var(--red); }
.result pre { margin-top: 10px; font-family: "SF Mono", Consolas, monospace; font-size: 12px; white-space: pre-wrap; word-break: break-word; color: var(--muted); }

.spinner {
    display: inline-block; width: 14px; height: 14px;
    border: 2px solid rgba(255,255,255,.3); border-top-color: #fff;
    border-radius: 50%; animation: spin .7s linear infinite;
    vertical-align: middle; margin-right: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }