:root {
    color-scheme: light;
    --background: #f4f7f2;
    --surface: #ffffff;
    --surface-soft: #e8f0e4;
    --ink: #18201d;
    --muted: #5c6862;
    --green: #1e6b4f;
    --green-deep: #104634;
    --lime: #bfd95a;
    --coral: #ef6b4d;
    --sky: #5aa7c8;
    --line: #d7dfd6;
    --shadow: 0 18px 50px rgba(24, 32, 29, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--background);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
}

a {
    color: inherit;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px clamp(16px, 4vw, 48px);
    background: rgba(244, 247, 242, 0.92);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--green-deep);
    font-weight: 800;
    text-decoration: none;
}

.brand-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    background: var(--lime);
    border: 2px solid var(--green-deep);
    border-radius: 50%;
    color: var(--green-deep);
    font-size: 0.9rem;
}

.nav-links {
    display: flex;
    gap: 18px;
    color: var(--muted);
    font-size: 0.95rem;
}

.nav-links a {
    text-decoration: none;
}

.nav-links a:hover {
    color: var(--green-deep);
}

main {
    overflow: hidden;
}

.hero {
    display: grid;
    min-height: calc(100vh - 75px);
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    gap: clamp(32px, 6vw, 80px);
    align-items: center;
    width: min(100% - 32px, 1180px);
    margin: 0 auto;
    padding: clamp(42px, 6vw, 72px) 0;
}

.hero-copy {
    max-width: 720px;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--coral);
    font-size: 0.84rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    overflow-wrap: anywhere;
}

h1 {
    margin: 0;
    color: var(--green-deep);
    font-size: clamp(3rem, 5.2vw, 5.3rem);
    line-height: 1;
    letter-spacing: 0;
}

h2 {
    margin: 0;
    color: var(--green-deep);
    font-size: clamp(2rem, 4.6vw, 4.2rem);
    line-height: 1.02;
    letter-spacing: 0;
}

h3 {
    margin: 0;
    color: var(--green-deep);
    font-size: 1.25rem;
    letter-spacing: 0;
}

.lead {
    max-width: 620px;
    margin: 18px 0 0;
    color: var(--muted);
    font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
}

.button {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 12px 18px;
    border: 2px solid var(--green-deep);
    border-radius: 8px;
    font-weight: 800;
    text-decoration: none;
}

.button.primary {
    background: var(--green-deep);
    color: #ffffff;
}

.button.secondary {
    background: var(--surface);
    color: var(--green-deep);
}

.challenge-line {
    display: inline-block;
    margin: 18px 0 0;
    color: var(--green-deep);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 900;
    line-height: 1.08;
}

.scoreboard {
    display: grid;
    gap: 18px;
    align-content: center;
}

.timer-disc {
    display: grid;
    width: min(100%, 360px);
    aspect-ratio: 1;
    place-items: center;
    justify-self: center;
    background: radial-gradient(circle at 34% 28%, #ffffff 0 15%, var(--lime) 16% 58%, var(--green) 59% 100%);
    border: 4px solid var(--green-deep);
    border-radius: 50%;
    box-shadow: var(--shadow);
    color: var(--green-deep);
}

.timer-disc span {
    display: block;
    font-size: clamp(5rem, 13vw, 9rem);
    font-weight: 900;
    line-height: 0.9;
}

.timer-disc small {
    display: block;
    margin-top: -54px;
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
}

.goal-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.goal-grid article,
.steps article,
.donation-grid article,
.business-options article {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 8px 28px rgba(24, 32, 29, 0.08);
}

.goal-grid article {
    min-width: 0;
    min-height: 124px;
    padding: 18px;
}

.metric-label {
    display: block;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 0.9rem;
}

.goal-grid strong {
    display: block;
    color: var(--green-deep);
    font-size: clamp(1.35rem, 3vw, 2.2rem);
    line-height: 1.05;
    overflow-wrap: anywhere;
}

.intro-band {
    background: var(--green-deep);
    color: #ffffff;
    padding: 28px 16px;
    text-align: center;
}

.intro-band p {
    width: min(100%, 900px);
    margin: 0 auto;
    font-size: clamp(1.3rem, 3vw, 2.35rem);
    font-weight: 900;
    line-height: 1.12;
}

.section,
.story-section,
.business-section,
.share-section {
    width: min(100% - 32px, 1120px);
    margin: 0 auto;
    padding: clamp(64px, 9vw, 112px) 0;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 30px;
}

.section-heading p:not(.eyebrow),
.story-copy p,
.business-section p {
    color: var(--muted);
    font-size: 1.1rem;
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.steps article {
    min-height: 230px;
    padding: 22px;
}

.steps span {
    display: grid;
    width: 42px;
    height: 42px;
    margin-bottom: 20px;
    place-items: center;
    background: var(--sky);
    border-radius: 50%;
    color: #ffffff;
    font-weight: 900;
}

.steps p,
.business-options p,
.share-copy p {
    margin: 12px 0 0;
    color: var(--muted);
}

.story-section {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
    gap: clamp(28px, 5vw, 64px);
    align-items: center;
}

.story-copy p {
    max-width: 680px;
}

.quote-panel {
    padding: clamp(28px, 5vw, 48px);
    background: var(--green);
    border-radius: 8px;
    color: #ffffff;
    box-shadow: var(--shadow);
}

.quote-panel p {
    margin: 0;
    font-size: clamp(1.6rem, 4vw, 3rem);
    font-weight: 900;
    line-height: 1.05;
}

.donation-section {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.donation-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.donation-grid article {
    min-height: 126px;
    padding: 20px;
}

.donation-grid strong {
    display: block;
    color: var(--coral);
    font-size: 2.1rem;
    line-height: 1;
}

.donation-grid span {
    display: block;
    margin-top: 10px;
    color: var(--green-deep);
    font-weight: 800;
}

.coming-soon {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    padding: 10px 16px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--green-deep);
    font-weight: 800;
}

.business-section {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(340px, 1.1fr);
    gap: clamp(24px, 5vw, 56px);
    align-items: start;
}

.business-options {
    display: grid;
    gap: 14px;
}

.business-options article {
    padding: 24px;
}

.business-options h3 {
    font-size: 2.4rem;
}

.share-section {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1.2fr);
    gap: 28px;
    align-items: start;
    padding-top: 0;
}

.share-copy {
    padding: 24px;
    background: var(--surface-soft);
    border-left: 6px solid var(--coral);
    border-radius: 8px;
}

.share-copy p {
    margin: 0;
    color: var(--green-deep);
    font-size: 1.18rem;
    font-weight: 800;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 28px clamp(16px, 4vw, 48px);
    background: var(--ink);
    color: #ffffff;
}

.site-footer p {
    margin: 0;
}

@media (max-width: 900px) {
    .site-footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
    }

    .nav-links {
        flex-wrap: wrap;
        gap: 10px 14px;
    }

    .hero,
    .story-section,
    .business-section,
    .share-section {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
    }

    .steps,
    .donation-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .site-header {
        position: static;
    }

    .brand {
        align-items: flex-start;
    }

    .nav-links {
        font-size: 0.9rem;
        gap: 8px 12px;
    }

    h1 {
        font-size: clamp(2.55rem, 11vw, 3.4rem);
        line-height: 1.02;
    }

    .lead {
        margin-top: 18px;
    }

    .hero-actions {
        margin-top: 22px;
    }

    .challenge-line {
        margin-top: 22px;
    }

    .goal-grid,
    .steps,
    .donation-grid {
        grid-template-columns: 1fr;
    }

    .timer-disc small {
        margin-top: -42px;
    }
}