/* ==========================================================================
   AAsys Technologies
   Global Design System
   ========================================================================== */

/* ==========================================================================
   1. Design Tokens
   ========================================================================== */

:root {
    /* ----------------------------------------------------------------------
       Brand Colors
       ---------------------------------------------------------------------- */

    --color-primary-900: #0b1f3a;
    --color-primary-800: #102a4c;
    --color-primary-700: #173b67;
    --color-primary-600: #1f4f85;
    --color-primary-500: #2c66a3;

    --color-accent-700: #087b72;
    --color-accent-600: #0b9488;
    --color-accent-500: #12a89b;
    --color-accent-400: #3bc0b5;

    /* ----------------------------------------------------------------------
       Neutral Colors
       ---------------------------------------------------------------------- */

    --color-white: #ffffff;

    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* ----------------------------------------------------------------------
       Semantic Colors
       ---------------------------------------------------------------------- */

    --color-background: var(--color-white);
    --color-background-subtle: var(--color-gray-50);
    --color-surface: var(--color-white);

    --color-text-primary: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-600);
    --color-text-muted: var(--color-gray-500);

    --color-border: var(--color-gray-200);
    --color-border-strong: var(--color-gray-300);

    --color-link: var(--color-primary-600);
    --color-link-hover: var(--color-primary-800);

    --color-focus: var(--color-accent-500);

    /* ----------------------------------------------------------------------
       Typography
       ---------------------------------------------------------------------- */

    --font-family-base:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;

    --font-family-heading: var(--font-family-base);

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 1.875rem;
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 3rem;
    --font-size-5xl: 3.75rem;

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

    --line-height-tight: 1.15;
    --line-height-heading: 1.25;
    --line-height-base: 1.6;
    --line-height-relaxed: 1.75;

    /* ----------------------------------------------------------------------
       Spacing
       ---------------------------------------------------------------------- */

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* ----------------------------------------------------------------------
       Layout
       ---------------------------------------------------------------------- */

    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1200px;
    --container-2xl: 1360px;

    --page-padding-mobile: 1.25rem;
    --page-padding-tablet: 2rem;
    --page-padding-desktop: 3rem;

    /* ----------------------------------------------------------------------
       Borders
       ---------------------------------------------------------------------- */

    --radius-sm: 0.375rem;
    --radius-md: 0.625rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* ----------------------------------------------------------------------
       Shadows
       ---------------------------------------------------------------------- */

    --shadow-sm:
        0 1px 2px rgb(15 23 42 / 0.05);

    --shadow-md:
        0 8px 24px rgb(15 23 42 / 0.08);

    --shadow-lg:
        0 16px 40px rgb(15 23 42 / 0.12);

    /* ----------------------------------------------------------------------
       Motion
       ---------------------------------------------------------------------- */

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* ----------------------------------------------------------------------
       Layering
       ---------------------------------------------------------------------- */

    --z-base: 1;
    --z-dropdown: 100;
    --z-header: 500;
    --z-overlay: 900;
    --z-modal: 1000;
}


/* ==========================================================================
   2. Modern CSS Reset
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;

    background-color: var(--color-background);
    color: var(--color-text-primary);

    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);

    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
    margin: 0;
}

ul,
ol {
    margin: 0;
    padding: 0;
}

img,
picture,
svg,
canvas,
video {
    display: block;
    max-width: 100%;
}

img {
    height: auto;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    border: 0;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}


/* ==========================================================================
   3. Base Typography
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-text-primary);
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
}

h1 {
    font-size: clamp(2.5rem, 5vw, var(--font-size-5xl));
    letter-spacing: -0.035em;
}

h2 {
    font-size: clamp(2rem, 4vw, var(--font-size-4xl));
    letter-spacing: -0.03em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, var(--font-size-2xl));
    letter-spacing: -0.02em;
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    color: var(--color-text-secondary);
}

strong,
b {
    font-weight: var(--font-weight-semibold);
}

small {
    font-size: var(--font-size-sm);
}

a {
    color: var(--color-link);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;

    transition:
        color var(--transition-fast),
        opacity var(--transition-fast);
}

a:hover {
    color: var(--color-link-hover);
}


/* ==========================================================================
   4. Accessibility
   ========================================================================== */

:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 3px;
}

::selection {
    background: var(--color-primary-800);
    color: var(--color-white);
}

[hidden] {
    display: none !important;
}


/* ==========================================================================
   5. Global Layout
   ========================================================================== */

.site {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-main {
    flex: 1;
}

.container {
    width: min(calc(100% - (var(--page-padding-mobile) * 2)),
            var(--container-xl));

    margin-inline: auto;
}

.container--wide {
    width: min(calc(100% - (var(--page-padding-mobile) * 2)),
            var(--container-2xl));

    margin-inline: auto;
}

.container--narrow {
    width: min(calc(100% - (var(--page-padding-mobile) * 2)),
            var(--container-md));

    margin-inline: auto;
}


/* ==========================================================================
   6. Global Section Rhythm
   ========================================================================== */

.section {
    padding-block: var(--space-20);
}

.section--small {
    padding-block: var(--space-12);
}

.section--large {
    padding-block: var(--space-24);
}

.section--subtle {
    background-color: var(--color-background-subtle);
}


/* ==========================================================================
   7. Common Content Rules
   ========================================================================== */

.prose {
    max-width: 70ch;
}

.prose>*+* {
    margin-top: var(--space-5);
}

.prose p {
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
}

.prose ul,
.prose ol {
    padding-left: 1.5rem;
}

.prose li+li {
    margin-top: var(--space-2);
}


/* ==========================================================================
   8. Screen Reader Utility
   ========================================================================== */

.visually-hidden {
    position: absolute !important;

    width: 1px !important;
    height: 1px !important;

    padding: 0 !important;
    margin: -1px !important;

    overflow: hidden !important;

    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;

    border: 0 !important;
}


/* ==========================================================================
   9. Responsive Foundation
   ========================================================================== */

@media (min-width: 768px) {

    .container,
    .container--wide,
    .container--narrow {
        width: calc(100% - (var(--page-padding-tablet) * 2));
    }

    .section {
        padding-block: var(--space-24);
    }

    .section--large {
        padding-block: var(--space-32);
    }
}


@media (min-width: 1200px) {

    .container {
        width: min(calc(100% - (var(--page-padding-desktop) * 2)),
                var(--container-xl));
    }

    .container--wide {
        width: min(calc(100% - (var(--page-padding-desktop) * 2)),
                var(--container-2xl));
    }

    .container--narrow {
        width: min(calc(100% - (var(--page-padding-desktop) * 2)),
                var(--container-md));
    }
}


/* ==========================================================================
   10. Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}