:root {
    --teal: #245665;
    --navy: #18354b;
    --mid-teal: #39666f;
    --soft-teal: #55787c;
    --pale-teal: #7e9893;
    --white: #ffffff;
    --off-white: #f7f8f8;
    --light-grey: #eef1f1;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--navy);
    background: linear-gradient(180deg, var(--white) 0%, var(--off-white) 55%, var(--light-grey) 100%);
    min-height: 100vh;
}

.page {
    padding: 40px 20px 70px;
}

.container {
    width: min(100%, 1000px);
    margin: 0 auto;
}

.banner {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 28px rgba(24, 53, 75, 0.1);
}

.content {
    max-width: 760px;
    margin: 55px auto 0;
    text-align: center;
}

.subtitle {
    margin: 0 0 15px;
    color: var(--teal);
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.12em;
}

h1 {
    margin: 0;
    color: var(--navy);
    font-size: clamp(2rem, 5vw, 3.2rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.intro {
    max-width: 680px;
    margin: 25px auto 32px;
    color: #425c65;
    font-size: 1.15rem;
    line-height: 1.7;
}

.petition-button {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    background: var(--teal);
    color: var(--white);
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.15s ease, background 0.15s ease;
}

.petition-button:hover {
    background: var(--navy);
    transform: translateY(-2px);
}

.petition-button:focus-visible {
    outline: 3px solid var(--pale-teal);
    outline-offset: 4px;
}

.important-note {
    margin: 48px auto 0;
    padding: 24px 28px;
    border-left: 4px solid var(--soft-teal);
    border-radius: 6px;
    background: rgba(126, 152, 147, 0.12);
    text-align: left;
    line-height: 1.6;
}

.important-note strong {
    color: var(--navy);
}

.important-note p {
    margin: 5px 0 0;
    color: #52676d;
}

.coming-soon {
    margin: 35px 0 0;
    color: var(--soft-teal);
    font-size: 0.95rem;
    font-weight: 600;
}

@media (max-width: 650px) {
    .page {
        padding: 18px 14px 45px;
    }

    .banner {
        border-radius: 6px;
    }

    .content {
        margin-top: 38px;
    }

    h1 {
        font-size: 2rem;
    }

    .intro {
        font-size: 1.05rem;
    }

    .petition-button {
        width: 100%;
    }

    .note {
        margin-top: 38px;
        padding: 20px;
    }
}