:root {
  --color-bg: #f4f6fa;
  --color-surface: #ffffff;
  --color-surface-alt: #eef1f7;
  --color-border: #dde2ec;
  --color-text: #16233e;
  --color-text-muted: #5b6785;
  --color-primary: #0f2a5c;
  --color-primary-hover: #0b2047;
  --color-accent: #d99a1b;
  --color-accent-hover: #b87f12;
  --color-success: #1c8a5a;
  --color-success-bg: #e4f6ee;
  --color-danger: #c23b3b;
  --color-danger-bg: #fbe9e9;
  --color-warning: #b8860b;
  --color-warning-bg: #fdf3dd;
  --shadow-card: 0 1px 3px rgba(16, 33, 74, 0.08), 0 1px 2px rgba(16, 33, 74, 0.06);
  --radius-md: 10px;
  --radius-lg: 16px;

  /* Barra lateral: navy fixo da marca, igual em claro e escuro (não é
     redefinido nos blocos de tema abaixo) — separa bem do conteúdo e o
     dourado do logo/acento continua combinando. */
  --sidebar-bg: #0f2a5c;
  --sidebar-text: rgba(255, 255, 255, 0.75);
  --sidebar-text-active: #ffffff;
  --sidebar-hover-bg: rgba(255, 255, 255, 0.08);
  --sidebar-active-bg: rgba(255, 255, 255, 0.14);
  --sidebar-accent: #d99a1b;
  --sidebar-border: rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] {
  --color-bg: #0d1526;
  --color-surface: #131d34;
  --color-surface-alt: #1a2540;
  --color-border: #263252;
  --color-text: #e7ecf7;
  --color-text-muted: #9aa7c7;
  --color-primary: #4d7cf0;
  --color-primary-hover: #6c92f2;
  --color-accent: #e6ab2e;
  --color-accent-hover: #f0bc4f;
  --color-success: #34b57c;
  --color-success-bg: #10301f;
  --color-danger: #e2685f;
  --color-danger-bg: #331515;
  --color-warning: #e0b23a;
  --color-warning-bg: #362a0d;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --color-bg: #0d1526;
    --color-surface: #131d34;
    --color-surface-alt: #1a2540;
    --color-border: #263252;
    --color-text: #e7ecf7;
    --color-text-muted: #9aa7c7;
    --color-primary: #4d7cf0;
    --color-primary-hover: #6c92f2;
    --color-accent: #e6ab2e;
    --color-accent-hover: #f0bc4f;
    --color-success: #34b57c;
    --color-success-bg: #10301f;
    --color-danger: #e2685f;
    --color-danger-bg: #331515;
    --color-warning: #e0b23a;
    --color-warning-bg: #362a0d;
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
  }
}