[data-theme="theme-sand"] {
  --color-bg: #f8f2e8;
  --color-surface-1: #fffaf0;
  --color-surface-2: #f4ecde;
  --color-surface-3: #eadfce;
  --color-border: #d6c6ad;
  --color-text: #2f2a24;
  --color-text-muted: #7e6e5b;
  --color-primary: #c76b2d;
  --color-secondary: #3e9f8f;
  --color-success: #2f9b63;
  --color-warning: #b8821b;
  --color-danger: #b64c44;
  --color-focus-ring: rgba(199, 107, 45, 0.3);

  --accent-cyan: #2a8ab7;
  --accent-magenta: #b64f88;
  --accent-violet: #7561c8;
  --accent-success: #2f9f68;
  --accent-cyan-rgb: 42, 138, 183;
  --accent-magenta-rgb: 182, 79, 136;
  --accent-violet-rgb: 117, 97, 200;

  --panel-alpha: 0.72;
  --stroke-alpha: 0.6;
  --panel-blur: 1px;
  --grain-opacity: 0.012;
  --shadow-soft: 0 14px 24px rgba(50, 32, 18, 0.12);
  --shadow-glow: 0 0 18px rgba(var(--accent-magenta-rgb), 0.1);

  --btn-primary-bg: linear-gradient(140deg, #c76b2d, #db8441);
  --btn-primary-bg-hover: linear-gradient(140deg, #d27938, #e1904f);
  --btn-primary-text: #fff7ef;
  --btn-primary-border: rgba(199, 107, 45, 0.58);
  --btn-primary-hover-border: rgba(199, 107, 45, 0.74);
}