/* ═══════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-accent-deep);
}

::selection {
    background: var(--color-accent-light);
    color: var(--color-accent-deep);
}

/* ═══════════════════════════════════════════
   TYPOGRAPHY
   ═══════════════════════════════════════════ */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

h1 {
    font-size: clamp(3rem, 7vw, 5.5rem);
    color: var(--color-text);
}

h2 {
    font-size: clamp(2.2rem, 4.5vw, 3.5rem);
    color: var(--color-text);
}

h3 {
    font-size: clamp(1.5rem, 2.8vw, 2rem);
}

h4 {
    font-size: 1.15rem;
    font-family: var(--font-sans);
    font-weight: 600;
    letter-spacing: 0;
}

.label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}

.label--accent {
    color: var(--color-accent);
}

/* Visually hidden (screen-reader only / honeypot) */
.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;
}

/* ═══════════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════════ */
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-md);
    background: var(--color-accent);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    z-index: 200;
    font-size: 0.875rem;
    font-weight: 600;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: var(--space-xs);
    color: #fff;
}

/* ═══════════════════════════════════════════
   FOCUS STYLES (keyboard navigation)
   ═══════════════════════════════════════════ */

/* Standard interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* Nav links — tighter radius to match the underline aesthetic */
.nav__links a:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: 3px;
}

/* Nav CTA pill buttons — match border-radius of the element */
.nav__cta:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 100px;
}

/* .btn components — pill-radius focus ring */
.btn:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 100px;
}

/* Back-to-top button — circular, so circular ring */
.back-to-top:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 50%;
}

/* Dark mode toggle button — circular */
.dark-toggle__btn:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 50%;
}

/* Mobile nav toggle — rectangular button */
.nav__mobile-toggle:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* YP toggle switch — pill shape */
.yp-toggle__switch:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 100px;
}

/* Form inputs and textareas — override the existing box-shadow-only approach */
.form__input:focus-visible,
.form__textarea:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 0;
    border-radius: var(--radius-sm);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-focus-accent);
}

/* Job card toggle buttons (careers.html) */
.job-card__toggle:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* Help topic toggle buttons (get-help.html) */
.help-topic__toggle:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* Modal close button */
.modal__close:focus-visible {
    outline: 3px solid var(--color-red);
    outline-offset: 3px;
    border-radius: 50%;
}

/* Crisis bar links (get-help.html — white context on coloured background) */
.crisis-bar__number:focus-visible,
.crisis-bar__more:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 3px;
    border-radius: 3px;
}

/* Share buttons (manifesto.html CTA section — on coloured background) */
.share-btn:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 3px;
    border-radius: 50%;
}

/* Priority cards and article cards (links used as cards) */
.priority-card:focus-visible,
.article-card:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: var(--radius-lg);
}

/* Footer links */
.footer__links a:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 3px;
}

/* Dark mode — invert focus ring colour where accent is too dark */
[data-theme="dark"] a:focus-visible,
[data-theme="dark"] button:focus-visible,
[data-theme="dark"] input:focus-visible,
[data-theme="dark"] textarea:focus-visible,
[data-theme="dark"] [tabindex]:focus-visible {
    outline-color: var(--color-accent);
}

[data-theme="dark"] .form__input:focus-visible,
[data-theme="dark"] .form__textarea:focus-visible {
    box-shadow: var(--shadow-focus-accent);
}