/* ==========================================================================
   DGN Design System — Base (reset, elements, layout primitives)
   ========================================================================== */

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

* {
    margin: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    tab-size: 4;
}

body {
    min-height: 100vh;
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    font-feature-settings: "ss01", "cv01";
}

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

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

button {
    cursor: pointer;
    background: none;
    border: none;
}

a {
    color: var(--color-primary-dark);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

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

ul,
ol {
    list-style: none;
    padding: 0;
}

/* ----- Headings & prose -------------------------------------------------- */

/* Public-facing headings speak in the serif; admin shells re-assert the
   sans (see layout.css) so dashboards keep a working-tool voice. */
h1,
h2,
h3 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: var(--leading-tight);
    letter-spacing: -0.01em;
    color: var(--color-ink-900);
    text-wrap: balance;
}

h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--color-ink-900);
    text-wrap: balance;
}

h1 {
    font-size: var(--text-4xl);
    font-weight: 900;
}

h2 {
    font-size: var(--text-3xl);
}

h3 {
    font-size: var(--text-2xl);
}

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

h1 em,
h2 em,
h3 em {
    font-style: italic;
    font-weight: inherit;
    color: var(--color-forest-700);
}

p {
    text-wrap: pretty;
}

strong {
    font-weight: 600;
}

code,
kbd,
samp {
    font-family: var(--font-mono);
    font-size: 0.9em;
}

::selection {
    background: var(--color-lime-300);
    color: var(--color-forest-900);
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-6) 0;
}

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

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.section {
    padding-block: clamp(var(--space-7), 8vw, var(--space-10));
}

.stack > * + * {
    margin-top: var(--space-4);
}

.stack-lg > * + * {
    margin-top: var(--space-6);
}

.grid {
    display: grid;
    gap: var(--space-5);
}

@media (min-width: 768px) {
    .grid--2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid--3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid--4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

.cluster {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    align-items: center;
}

.flow-center {
    text-align: center;
    margin-inline: auto;
}

/* ----- Utility ----------------------------------------------------------- */

.text-muted {
    color: var(--color-text-muted);
}

.text-accent {
    color: var(--color-primary);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: var(--tracking-caps);
    text-transform: uppercase;
    color: var(--color-forest-700);
}

.eyebrow::before {
    content: "";
    width: 1.75rem;
    height: 2px;
    background: var(--color-lime-400);
    border-radius: var(--radius-pill);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    left: var(--space-4);
    top: -3rem;
    z-index: var(--z-modal);
    padding: var(--space-2) var(--space-4);
    background: var(--color-forest-800);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    transition: top var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
    top: var(--space-4);
    color: var(--color-white);
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}