/* Offset Calculator Plugin — calculator.css */

.oc-root *,
.oc-root *::before,
.oc-root *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.oc-root {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    color: #1a1a1a;
    max-width: 640px;
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 10px;
    overflow: hidden;
    line-height: 1.5;
}

/* ── Tabs ── */
.oc-tabs {
    display: flex;
    border-bottom: 1px solid #e5e5e5;
    background: #fafafa;
}

.oc-tab {
    padding: 10px 18px;
    font-size: 13px;
    cursor: pointer;
    border: none;
    background: none;
    color: #666;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    font-weight: 400;
    transition: color .15s;
}

.oc-tab:hover { color: #333; }

.oc-tab.active {
    color: #0073aa;
    border-bottom-color: #0073aa;
    font-weight: 500;
}

/* ── Panels ── */
.oc-panel { padding: 16px; }

/* ── Form rows ── */
.oc-dim-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 12px;
}

.oc-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.oc-field label {
    font-size: 12px;
    color: #666;
    font-weight: 400;
}

.oc-field input,
.oc-field select,
.oc-input {
    padding: 7px 9px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    color: #1a1a1a;
    width: 100%;
    transition: border-color .15s;
}

.oc-field input:focus,
.oc-field select:focus,
.oc-input:focus {
    outline: none;
    border-color: #0073aa;
    box-shadow: 0 0 0 2px rgba(0,115,170,.15);
}

/* ── Bế type toggle ── */
.oc-be-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.oc-be-row > label {
    font-size: 13px;
    color: #555;
    min-width: 70px;
}

.oc-seg {
    display: flex;
    border: 1px solid #ddd;
    border-radius: 6px;
    overflow: hidden;
}

.oc-seg button {
    padding: 6px 14px;
    font-size: 13px;
    border: none;
    background: #fff;
    color: #555;
    cursor: pointer;
    transition: background .15s, color .15s;
}

.oc-seg button + button {
    border-left: 1px solid #ddd;
}

.oc-seg button.active {
    background: #e8f4fd;
    color: #0073aa;
    font-weight: 500;
}

.oc-gap-hint {
    font-size: 12px;
    color: #888;
    padding: 4px 10px;
    background: #f5f5f5;
    border-radius: 20px;
}

/* ── Option chips ── */
.oc-opt-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.oc-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border: 1px solid #ddd;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    color: #555;
    background: #fff;
    user-select: none;
    transition: border-color .15s, background .15s, color .15s;
}

.oc-chip input[type="checkbox"] {
    width: 14px;
    height: 14px;
    cursor: pointer;
    accent-color: #0073aa;
}

.oc-chip.on {
    border-color: #0073aa;
    background: #e8f4fd;
    color: #0073aa;
}

/* ── Orient buttons ── */
.oc-orient-row {
    display: flex;
    gap: 6px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.oc-o-btn {
    padding: 4px 12px;
    font-size: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    cursor: pointer;
    background: #fff;
    color: #555;
    transition: border-color .15s, background .15s, color .15s;
}

.oc-o-btn.active {
    border-color: #0073aa;
    background: #e8f4fd;
    color: #0073aa;
    font-weight: 500;
}

.oc-badge {
    display: inline-block;
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 20px;
    background: #d4edda;
    color: #155724;
    margin-left: 4px;
    font-weight: 500;
}

/* ── Result box ── */
.oc-result {
    background: #f7f9fc;
    border: 1px solid #e0e8f0;
    border-radius: 8px;
    padding: 14px 16px;
    margin-top: 4px;
}

.oc-res-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 10px;
}

.oc-res-label {
    font-size: 11px;
    color: #888;
    margin-bottom: 3px;
    text-transform: uppercase;
    letter-spacing: .03em;
}

.oc-res-value {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.2;
}

.oc-res-value.green { color: #1a7a3c; }
.oc-res-value.blue  { color: #0055a5; }

.oc-res-sub {
    display: flex;
    gap: 16px;
    border-top: 1px solid #dde5ee;
    padding-top: 8px;
    flex-wrap: wrap;
}

.oc-rs {
    font-size: 13px;
    color: #666;
}

.oc-rs b { color: #1a1a1a; font-weight: 500; }

.oc-layout-note {
    font-size: 11px;
    color: #999;
    margin-top: 6px;
    line-height: 1.5;
}

/* ── Settings panel ── */
.oc-set-section { margin-bottom: 18px; }

.oc-set-title {
    font-size: 11px;
    font-weight: 600;
    color: #888;
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid #f0f0f0;
}

.oc-set-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.oc-set-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.oc-set-row label {
    font-size: 13px;
    color: #555;
    min-width: 155px;
}

.oc-set-row input {
    padding: 5px 8px;
    font-size: 13px;
    width: 100px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    color: #1a1a1a;
}

.oc-set-row input:focus {
    outline: none;
    border-color: #0073aa;
}

.oc-set-row span {
    font-size: 12px;
    color: #999;
    white-space: nowrap;
}

/* ── Mat list ── */
.oc-mat-list { display: flex; flex-direction: column; gap: 6px; }

.oc-mat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border: 1px solid #eee;
    border-radius: 6px;
    background: #fafafa;
}

.oc-mat-item input[type="text"] {
    flex: 1;
    padding: 4px 8px;
    font-size: 13px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background: #fff;
    color: #1a1a1a;
}

.oc-mat-item input[type="number"] {
    width: 90px;
    padding: 4px 8px;
    font-size: 13px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background: #fff;
    color: #1a1a1a;
}

.oc-mat-item span {
    font-size: 12px;
    color: #999;
    white-space: nowrap;
}

.oc-btn-del {
    background: none;
    border: none;
    cursor: pointer;
    color: #bbb;
    font-size: 18px;
    line-height: 1;
    padding: 0 2px;
    transition: color .15s;
}

.oc-btn-del:hover { color: #cc0000; }

/* ── Buttons ── */
.oc-btn-add {
    padding: 5px 14px;
    font-size: 13px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    color: #555;
    cursor: pointer;
    margin-top: 6px;
    transition: background .15s;
}

.oc-btn-add:hover { background: #f5f5f5; }

.oc-btn-save {
    padding: 9px 0;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid #0073aa;
    border-radius: 6px;
    background: #0073aa;
    color: #fff;
    cursor: pointer;
    width: 100%;
    margin-top: 6px;
    transition: background .15s;
}

.oc-btn-save:hover { background: #005f8d; }

.oc-save-note {
    font-size: 12px;
    color: #1a7a3c;
    margin-top: 6px;
    display: none;
}

/* ── Profit tiers ── */
.oc-tier-header {
    display: grid;
    grid-template-columns: 1fr 70px 24px;
    gap: 8px;
    font-size: 11px;
    color: #999;
    padding: 0 0 4px;
    text-transform: uppercase;
    letter-spacing: .03em;
}

.oc-tier-row {
    display: grid;
    grid-template-columns: 1fr 70px 16px 24px;
    gap: 8px;
    align-items: center;
    margin-bottom: 6px;
}

.oc-tier-row input {
    padding: 5px 8px;
    font-size: 13px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    color: #1a1a1a;
    width: 100%;
}

.oc-tier-row input:focus {
    outline: none;
    border-color: #0073aa;
}

.oc-tier-unit {
    font-size: 12px;
    color: #999;
}

/* ── Loading state ── */
.oc-loading {
    padding: 32px;
    text-align: center;
    color: #aaa;
    font-size: 13px;
}

/* ── Responsive ── */
@media (max-width: 480px) {
    .oc-dim-row { grid-template-columns: 1fr 1fr; }
    .oc-dim-row .oc-field:last-child { grid-column: span 2; }
    .oc-res-grid { grid-template-columns: 1fr; }
    .oc-set-grid { grid-template-columns: 1fr; }
    .oc-set-row label { min-width: 120px; }
}