/* --------------------------------Base-------------------------------- */
:root {
    --color-primary: #004270;
    --color-primary-dark: #002f50;
    --color-text: #24323d;
    --color-muted: #667680;
    --color-background: #f5f7f8;
    --color-white: #ffffff;
    --color-border: #dce3e7;
    --container-width: 1200px;
    --radius: 8px;
}
* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    color: var(--color-text);
    background: var(--color-background);
    line-height: 1.6;
}
img {
    max-width: 100%;
    height: auto;
}
a {
    color: inherit;
}
.container {
    width: min(calc(100% - 40px),var(--container-width));
    margin-inline: auto;
}
/* --------------------------------Header-------------------------------- */
.site-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.site-logo {
    color: var(--color-primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
}
.site-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}
.site-nav a {
    color: var(--color-text);
    font-weight: 600;
    text-decoration: none;
}
.site-nav a:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
}
.site-nav a:hover {
    color: var(--color-primary);
}
/* --------------------------------Main-------------------------------- */
.site-main {
    min-height: 70vh;
}
/* --------------------------------Charities-------------------------------- */
.charities {
    padding: 80px 0;
}
.section-header {
    max-width: 680px;
    margin-bottom: 48px;
}
.section-header__eyebrow {
    margin: 0 0 8px;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.section-header h1 {
    margin: 0 0 16px;
    color: var(--color-primary);
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    line-height: 1.1;
}
.section-header > p:last-child {
    margin: 0;
    color: var(--color-muted);
    font-size: 1.125rem;
}
/* --------------------------------Charity grid-------------------------------- */
.charity-grid {
    display: grid;
    grid-template-columns:repeat(3, minmax(0, 1fr));
    gap: 24px;
}
/* --------------------------------Charity card-------------------------------- */
.charity-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: transform 160ms ease,box-shadow 160ms ease;
}
.charity-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}
.charity-card__image {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #eef3f6;
}
.charity-card__image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.charity-card__image span {
    width: 80px;
    height: 80px;
    position: relative;
    top: 50%;
    left: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 2rem;
    font-weight: 700;
}
.charity-card__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 28px;
}
.charity-card h2 {
    margin: 0 0 12px;
    color: var(--color-primary);
    font-size: 1.35rem;
    line-height: 1.25;
}
.charity-card p {
    margin: 0 0 24px;
    color: var(--color-muted);
}
.charity-card__link {
    margin-top: auto;
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: none;
}
.charity-card__link:hover {
    text-decoration: underline;
}
/* --------------------------------Charity detail-------------------------------- */
.charity-detail {
    padding: 60px 0 80px;
}
.back-link {
    display: inline-block;
    margin-bottom: 28px;
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
}
.back-link:hover {
    text-decoration: underline;
}
.charity-detail__card {
    display: grid;
    grid-template-columns: 360px minmax(0, 1fr);
    overflow: hidden;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}
.charity-detail__image {
    overflow: hidden;
    background: #eef3f6;
}
.charity-detail__image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.charity-detail__content {
    padding: 56px;
}
.charity-detail__content h1 {
    margin: 0 0 24px;
    color: var(--color-primary);
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.1;
}
.charity-detail__description {
    max-width: 700px;
    margin-bottom: 40px;
    color: var(--color-muted);
    font-size: 1.1rem;
}
.charity-detail__description p {
    margin: 0 0 16px;
}
.charity-detail__contact {
    display: grid;
    gap: 20px;
    margin: 0;
}
.charity-detail__contact > div {
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}
.charity-detail__contact dt {
    margin-bottom: 4px;
    color: var(--color-text);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.charity-detail__contact dd {
    margin: 0;
    color: var(--color-muted);
}
.charity-detail__contact a {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
}
.charity-detail__contact a:hover {
    text-decoration: underline;
}
/* --------------------------------Empty state-------------------------------- */
.empty-state {
    padding: 48px;
    text-align: center;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}
/* --------------------------------Footer-------------------------------- */
.site-footer {
    padding: 40px 0;
    background: var(--color-primary);
    color: var(--color-white);
}
.site-footer p {
    margin: 0;
}
.site-footer__disclaimer {
    margin-top: 8px !important;
    opacity: 0.75;
    font-size: 0.875rem;
}
/* --------------------------------Error page-------------------------------- */
.error-page {
    padding: 100px 0;
}
.error-page__content {
    margin-top: 5vh;
    max-width: 680px;
}
.error-page__content h1 {
    margin: 0 0 16px;
    color: var(--color-primary);
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    line-height: 1.1;
}
.error-page__content > p:not(.section-header__eyebrow) {
    margin: 0 0 32px;
    color: var(--color-muted);
    font-size: 1.125rem;
}
.error-page__link {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: none;
}
.error-page__link:hover {
    text-decoration: underline;
}
.error-page__link:focus-visible,.back-link:focus-visible,.charity-card__link:focus-visible,.site-logo:focus-visible,.site-nav a:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
}
@media (max-width: 560px) {
    .error-page {
        padding: 60px 0;
    }
}
/* -------------------------------- Accessibility -------------------------------- */
a:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: 3px;
}
.site-footer a:focus-visible {
    outline: 3px solid var(--color-white);
}
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .charity-card {
        transition: none;
    }
    .charity-card:hover {
        transform: none;
    }
}
/* --------------------------------Responsive-------------------------------- */
@media (max-width: 900px) {
    .charity-grid {
        grid-template-columns: 1fr 1fr;
    }
    .charity-detail__card {
        grid-template-columns: 1fr;
    }
    .charity-detail__image {
        aspect-ratio: 16 / 9;
    }
    .charity-detail__content {
        padding: 40px;
    }
}
@media (max-width: 600px) {
    .container {
        width: min(calc(100% - 30px),var(--container-width));
    }
    .site-header__inner {
        min-height: 64px;
    }
    .site-logo {
        font-size: 1.35rem;
    }
    .site-nav a {
        font-size: 0.95rem;
    }
    .charities {
        padding: 50px 0;
    }
    .section-header {
        margin-bottom: 32px;
    }
    .section-header h1 {
        font-size: 2.25rem;
    }
    .section-header > p:last-child {
        font-size: 1rem;
    }
    .charity-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .charity-card__content {
        padding: 24px;
    }
    .charity-card h2 {
        font-size: 1.25rem;
    }
    .charity-detail {
        padding: 40px 0 60px;
    }
    .charity-detail__image {
        aspect-ratio: 16 / 10;
    }
    .charity-detail__content {
        padding: 30px 24px;
    }
    .charity-detail__content h1 {
        margin-bottom: 20px;
        font-size: 2rem;
    }
    .charity-detail__description {
        margin-bottom: 32px;
        font-size: 1rem;
    }
    .back-link {
        margin-bottom: 20px;
    }
    .empty-state {
        padding: 32px 24px;
    }
    .site-footer {
        padding: 32px 0;
    }
}
@media (max-width: 560px) {
    .site-nav {
        gap: 16px;
    }
}