:root{
 --h-bg:#f6f7f4;--h-surface:#ffffff;--h-text:#26362e;--h-muted:#626e65;--h-line:#dce2da;--h-control-line:#87958b;--h-accent:#35664d;--h-accent-hover:#294f3c;--h-tint:#edf3ed;--h-error:#a53131;--h-selected:#e3ece3;
 --h-space-1:4px;--h-space-2:8px;--h-space-3:12px;--h-space-4:16px;--h-space-6:24px;--h-space-8:32px;--h-space-12:48px;
 --h-font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
 --h-caption:12px;--h-body:14px;--h-section:16px;--h-subvalue:20px;--h-title:24px;--h-value:32px;
 --h-leading-caption:16px;--h-leading-body:20px;--h-leading-section:24px;--h-leading-title:32px;--h-leading-value:40px;
 --h-regular:400;--h-medium:500;--h-semibold:600;--h-radius-control:8px;--h-radius-panel:12px;
 --h-control:40px;--h-row:48px;--h-nav:200px;--h-content:1280px;--h-dialog:480px;--h-dialog-wide:720px;
 --h-shadow:0 12px 32px #26362e20;
}

/* Themes alter color only; spacing, typography and semantic errors stay consistent. */
:root[data-theme="blue"]{--h-accent:#315f91;--h-accent-hover:#25486e;--h-tint:#edf2f8;--h-selected:#e0eaf5;}
:root[data-theme="violet"]{--h-accent:#68518c;--h-accent-hover:#503d70;--h-tint:#f3eff8;--h-selected:#eae3f3;}
:root[data-theme="amber"]{--h-accent:#855c2e;--h-accent-hover:#684722;--h-tint:#f7f1e9;--h-selected:#f0e5d6;}
:root[data-theme="graphite"]{--h-accent:#4c5865;--h-accent-hover:#37414c;--h-tint:#eef1f4;--h-selected:#e2e7ec;}

/* Categorical chart palettes: separate hues retain legibility in every theme. */
:root,[data-theme="forest"]{--h-chart-hue:145;--h-chart-0:#427864;--h-chart-1:#547aa5;--h-chart-2:#b48245;--h-chart-3:#8c68a1;--h-chart-4:#4c9298;--h-chart-5:#b76469;--h-chart-6:#879448;--h-chart-7:#866d57;--h-chart-8:#6874bb;--h-chart-9:#a56392}
[data-theme="blue"]{--h-chart-hue:210;--h-chart-0:#396fa3;--h-chart-1:#598f99;--h-chart-2:#ba8750;--h-chart-3:#806aab;--h-chart-4:#589076;--h-chart-5:#b76780;--h-chart-6:#849750;--h-chart-7:#8c735d;--h-chart-8:#6071ba;--h-chart-9:#a5679e}
[data-theme="violet"]{--h-chart-hue:275;--h-chart-0:#7d5c9c;--h-chart-1:#57849d;--h-chart-2:#b68957;--h-chart-3:#af678c;--h-chart-4:#4f958e;--h-chart-5:#bb7167;--h-chart-6:#88944c;--h-chart-7:#8e7462;--h-chart-8:#6675b6;--h-chart-9:#688e66}
[data-theme="amber"]{--h-chart-hue:35;--h-chart-0:#a77834;--h-chart-1:#537e9b;--h-chart-2:#b46654;--h-chart-3:#906c9e;--h-chart-4:#538b76;--h-chart-5:#b76688;--h-chart-6:#879544;--h-chart-7:#827266;--h-chart-8:#677ab6;--h-chart-9:#508f95}
[data-theme="graphite"]{--h-chart-hue:220;--h-chart-0:#52616c;--h-chart-1:#607e9d;--h-chart-2:#a2865e;--h-chart-3:#847394;--h-chart-4:#608e80;--h-chart-5:#a76e78;--h-chart-6:#85905c;--h-chart-7:#897767;--h-chart-8:#7480aa;--h-chart-9:#987594}