/* Skin: Marian Blue — xanh Đức Mẹ · vàng thánh · nền ivory (mặc định) */
:root[data-skin="marian-blue"] {
  --c-bg: #f7f4ec;          --c-surface: #ffffff;
  --c-text: #23304a;        --c-muted: #6b7691;
  --c-primary: #1d3a6e;     --c-primary-ink: #ffffff;
  --c-accent: #f5c542;      --c-accent-ink: #3a2f00;
  --c-danger: #b33939;      --c-danger-bg: #f9e5e5;
  --c-ok: #2e7d32;          --c-ok-bg: #e6f3e6;
  --c-chip-bg: #eef2fa;     --c-code-bg: #eeeae0;
  --c-border: #d5dcec;      --c-input-bg: #fdfdfb;
  --radius: 16px;
  --shadow: 0 2px 10px rgba(29, 58, 110, .07);
}
:root[data-skin="marian-blue"][data-mode="dark"] {
  --c-bg: #10182a;          --c-surface: #1a2440;
  --c-text: #e8ecf6;        --c-muted: #96a2c0;
  --c-primary: #3f66b0;     --c-primary-ink: #ffffff;
  --c-accent: #f5c542;      --c-accent-ink: #3a2f00;
  --c-border: #2c3a5e;      --c-danger: #e07a7a;    --c-danger-bg: #3a2020;
  --c-ok: #7cc980;          --c-ok-bg: #1c3220;
  --c-chip-bg: #223055;     --c-code-bg: #263457;
  --c-input-bg: #14203a;
  --shadow: 0 2px 12px rgba(0, 0, 0, .35);
}