/* -------------------------------------------------
   Reset
   ------------------------------------------------- */

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

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

body {
    margin: 0;
    min-width: 20rem;
    background: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-body);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

img,
svg {
    height: auto;
}

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

button {
    border: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

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

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

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

/* -------------------------------------------------
   Global typography
   ------------------------------------------------- */

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-text-strong);
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-heading);
    letter-spacing: var(--letter-spacing-heading);
    text-wrap: balance;
}

h1 {
    font-size: clamp(2.75rem, 6vw, var(--font-size-5xl));
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
}

h2 {
    font-size: clamp(2.15rem, 4vw, var(--font-size-4xl));
}

h3 {
    font-size: clamp(1.35rem, 2vw, var(--font-size-xl));
}

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

p {
    color: var(--color-text-muted);
    text-wrap: pretty;
}

strong {
    color: var(--color-text-strong);
    font-weight: var(--font-weight-semibold);
}

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

a {
    transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

::selection {
    background: var(--color-brand-blue-200);
    color: var(--color-brand-navy-950);
}

/* -------------------------------------------------
   Global layout
   ------------------------------------------------- */

.container {
    width: min( calc(100% - (var(--container-padding) * 2)), var(--container-width) );
    margin-inline: auto;
}

.container--narrow {
    width: min( calc(100% - (var(--container-padding) * 2)), var(--container-width-narrow) );
    margin-inline: auto;
}

.section {
    position: relative;
    padding-block: var(--section-spacing);
}

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

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

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

.section--dark {
    background: var(--gradient-dark);
    color: var(--color-white);
}

    .section--dark h1,
    .section--dark h2,
    .section--dark h3,
    .section--dark h4,
    .section--dark strong {
        color: var(--color-white);
    }

    .section--dark p {
        color: rgba(255, 255, 255, 0.76);
    }

/* -------------------------------------------------
   Shared text patterns
   ------------------------------------------------- */

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    color: var(--color-brand-blue-700);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    line-height: 1;
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
}

    .eyebrow::before {
        content: "";
        width: 1.75rem;
        height: 0.125rem;
        border-radius: var(--radius-pill);
        background: var(--gradient-brand);
    }

.section-heading {
    max-width: 47rem;
    margin-bottom: var(--space-12);
}

    .section-heading h2 {
        margin-bottom: var(--space-5);
    }

    .section-heading p {
        max-width: 43rem;
        font-size: var(--font-size-md);
    }

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

    .section-heading--center p {
        margin-inline: auto;
    }

.split-heading {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.8fr);
    gap: var(--space-16);
    align-items: end;
    margin-bottom: var(--space-12);
}

    .split-heading > p {
        font-size: var(--font-size-md);
    }

/* -------------------------------------------------
   Accessibility
   ------------------------------------------------- */

.skip-link {
    position: fixed;
    top: var(--space-4);
    left: var(--space-4);
    z-index: var(--z-modal);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-sm);
    background: var(--color-brand-navy-950);
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-md);
    transform: translateY(-200%);
}

    .skip-link:focus {
        color: var(--color-white);
        transform: translateY(0);
    }

:focus-visible {
    outline: 3px solid rgba(78, 145, 208, 0.55);
    outline-offset: 3px;
}

[hidden] {
    display: none !important;
}

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

.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;
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

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

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

.no-scroll {
    overflow: hidden;
}

/* -------------------------------------------------
   Responsive foundations
   ------------------------------------------------- */

@media (max-width: 64rem) {
    .split-heading {
        grid-template-columns: 1fr;
        gap: var(--space-6);
        align-items: start;
    }
}

@media (max-width: 48rem) {
    h1 {
        max-width: 15ch;
    }

    .section-heading {
        margin-bottom: var(--space-10);
    }

        .section-heading p,
        .split-heading > p {
            font-size: var(--font-size-base);
        }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

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