/* ==========================================================================
   Design tokens
   ========================================================================== */
:root {
    /* Brand palette */
    --color-deal-teal: #0E7C66;
    --color-sunny-tag: #FFC83D;
    --color-pine-ink: #10231E;
    --color-mint-mist: #F3FBF8;
    --color-teal-glow: #34D3AE;

    /* Derived shades (same hues, used for text contrast and borders only) */
    --color-teal-deep: #0A5C4C;
    --color-mint-strong: #E2F4EE;
    --color-sunny-soft: #FFD566;

    /* Semantic roles */
    --color-text: var(--color-pine-ink);
    --color-text-muted: #4B5D58;
    --color-text-inverse: #FFFFFF;
    --color-text-inverse-muted: rgba(255, 255, 255, 0.78);
    --color-link: var(--color-deal-teal);
    --color-link-hover: var(--color-teal-deep);

    --color-bg: #FFFFFF;
    --color-bg-alt: var(--color-mint-mist);
    --color-surface: #FFFFFF;
    --color-border: #DCE8E3;
    --color-border-strong: #B9D3CA;

    --color-primary: var(--color-deal-teal);
    --color-primary-hover: var(--color-teal-glow);
    --color-on-primary: #FFFFFF;
    --color-on-primary-hover: var(--color-pine-ink);
    --color-highlight: var(--color-sunny-tag);
    --color-on-highlight: var(--color-pine-ink);
    --color-success: var(--color-teal-glow);
    --color-success-bg: rgba(52, 211, 174, 0.16);
    --color-success-text: var(--color-teal-deep);
    --color-error: #B42318;

    --color-overlay: rgba(16, 35, 30, 0.55);
    --color-focus: var(--color-deal-teal);
    --color-focus-inverse: var(--color-sunny-tag);

    /* Typography */
    --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --fw-regular: 400;
    --fw-semibold: 600;
    --fw-heavy: 800;

    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-md: 1.125rem;
    --fs-lg: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: clamp(1.625rem, 1.3rem + 1.4vw, 2.25rem);
    --fs-3xl: clamp(2rem, 1.4rem + 2.6vw, 3.25rem);

    --lh-tight: 1.2;
    --lh-snug: 1.35;
    --lh-base: 1.6;

    /* Spacing scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 3rem;
    --space-8: 4rem;

    /* Layout */
    --container-width: 1200px;
    --container-gutter: 1rem;
    --sidebar-width: 320px;
    --layout-gap: var(--space-6);
    --header-height: 72px;

    /* Shape */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-pill: 999px;

    /* Elevation */
    --shadow-sm: 0 1px 2px rgba(16, 35, 30, 0.06);
    --shadow-md: 0 8px 24px rgba(16, 35, 30, 0.08);
    --shadow-lg: 0 18px 48px rgba(16, 35, 30, 0.18);

    /* Motion */
    --transition-fast: 150ms ease;
    --transition: 220ms ease;

    /* Layers */
    --z-header: 100;
    --z-dropdown: 200;
    --z-drawer: 1000;
    --z-modal: 1100;
}

@media (min-width: 768px) {
    :root {
        --container-gutter: 1.5rem;
    }
}

@media (max-width: 1199.98px) {
    :root {
        --sidebar-width: 280px;
        --layout-gap: var(--space-5);
    }
}

@media (max-width: 1099.98px) {
    :root {
        --header-height: 116px;
    }
}

@media (prefers-reduced-motion: reduce) {
    :root {
        --transition-fast: 0ms;
        --transition: 0ms;
    }
}