/*
  color.css
  Chi khai bao bien mau (CSS Custom Properties). Khong chua rule/selector khac.
  1 bang mau duy nhat (khong co light/dark mode) - tong cam do (red-orange),
  nen toi am mau nau-do thay vi xam trung tinh.
*/

:root {
    /* Nen */
    --color-bg: #180f0d;           /* canvas ngoai cung, dung cho .app-bg */
    --color-surface: #3d2620;      /* diem dau gradient cua 1 .page */
    --color-surface-2: #221310;    /* diem cuoi gradient cua 1 .page (toi hon) */
    --color-surface-alt: #32201b;  /* nen phu, box/card long trong page */
    --color-overlay: rgba(0, 0, 0, 0.6);

    /* Lop nen trang tri dung chung (.app-bg): luoi + quang sang */
    --color-grid-line: rgba(255, 130, 90, 0.06);
    --color-glow: rgba(255, 87, 51, 0.3);
    --color-circuit-line: rgba(255, 122, 74, 0.55);   /* net cam neon (mach dien) */
    --color-circuit-metal: rgba(178, 184, 192, 0.4);  /* net xam kim loai */

    /* Nhan / accent - tong cam do */
    --color-primary: #ff5a36;
    --color-primary-dark: #c7391d;
    --color-primary-light: #ff9270;
    --color-secondary: #b3452e;

    /* Chu */
    --color-text: #f4ece9;
    --color-text-muted: #c9b4ac;
    --color-text-subtle: #93807a;
    --color-text-inverse: #241310;

    /* Vien / bong */
    --color-border: rgba(255, 154, 120, 0.16);
    --color-shadow: rgba(0, 0, 0, 0.4);
    --color-shadow-strong: rgba(0, 0, 0, 0.6);

    /* Trang thai */
    --color-success: #2e7d32;
    --color-warning: #ed6c02;
    --color-error: #d32f2f;
}