/* ========== miAruba Design Tokens v5.0 ========== */
/* Mobile-first design system for Android PWA */

:root {
    /* ── Brand Colors ── */
    --aruba-blue: #4B92DB;
    --aruba-blue-light: #F0F7FF;
    --navy: #0F172A;
    --yellow: #F59E0B;
    --yellow-light: #FFFBEB;

    /* ── Semantic Colors ── */
    --blue: #1A56DB;
    --blue-dark: #1344B0;
    --blue-light: #EBF0FF;
    --red: #DC2626;
    --red-light: #FEE2E2;
    --green: #16A34A;
    --green-light: #DCFCE7;
    --orange: #EA580C;
    --orange-light: #FFF7ED;
    --purple: #7C3AED;
    --purple-light: #EDE9FE;
    --pink: #EC4899;
    --pink-light: #FCE7F3;
    --coral: #F97316;
    --coral-light: #FFF7ED;
    --dark-red: #5C1A1A;

    /* ── Gray Scale ── */
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;

    /* ── Typography Scale (7 steps) ── */
    --text-xs: 0.75rem;     /* 12px — captions, timestamps */
    --text-sm: 0.875rem;    /* 14px — secondary text, labels */
    --text-base: 1rem;      /* 16px — body (min for mobile) */
    --text-lg: 1.125rem;    /* 18px — card titles */
    --text-xl: 1.5rem;      /* 24px — section headings */
    --text-2xl: 2rem;       /* 32px — page titles */
    --text-3xl: 2.5rem;     /* 40px — hero headlines */

    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.7;

    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* ── Spacing Scale (4px base) ── */
    --space-0: 0;
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.5rem;    /* 24px */
    --space-6: 2rem;      /* 32px */
    --space-8: 3rem;      /* 48px */
    --space-10: 4rem;     /* 64px */

    /* ── Border Radius ── */
    --radius-xs: 6px;
    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    /* ── Shadows (elevation levels) ── */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.05);

    /* ── Z-Index Scale ── */
    --z-base: 1;
    --z-card: 10;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 500;
    --z-modal: 1000;
    --z-topbar: 1100;
    --z-toast: 9000;
    --z-max: 10000;

    /* ── Transitions ── */
    --duration-fast: 150ms;
    --duration-base: 200ms;
    --duration-slow: 300ms;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

    /* ── Touch Targets ── */
    --touch-min: 44px;
    --touch-gap: 8px;

    /* ── Layout ── */
    --topbar-height: 56px;
    --bottom-nav-height: 60px;
    --content-max: 1200px;
    --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ── Focus Visible ── */
:focus-visible {
    outline: 3px solid var(--blue);
    outline-offset: 2px;
    border-radius: var(--radius-xs);
}

:focus:not(:focus-visible) {
    outline: none;
}