* {
    box-sizing: border-box;
}

html, body {
    min-height: 100%;
    margin: 0;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #ffffff;
    background:
        linear-gradient(rgba(0,0,0,0.42), rgba(0,0,0,0.42)),
        url("images/Splash7-maj25.jpg") center center / cover no-repeat fixed;
    overflow-x: hidden;
}

.page {
    width: 100%;
    min-height: 100vh;
    padding: 42px 20px 30px;
    text-align: center;
}

.intro h1 {
    margin: 0 0 20px;
    font-size: clamp(2.4rem, 6vw, 5rem);
    line-height: 1.05;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    text-shadow: 0 4px 16px rgba(0,0,0,0.75);
}

.three-lines {
    width: 600px;
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.25;
    color: #f1f1f1;
    text-shadow: 0 2px 8px rgba(0,0,0,0.85);
}

.form-panel {
    width: min(92%, 500px);
    margin: 30px auto;
    padding: 28px 26px 24px;
    background: rgba(0,0,0,0.74);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 14px;
    box-shadow: 0 10px 28px rgba(0,0,0,0.45);
}

.form-heading {
    margin: 0 0 24px;
    font-size: 1.05rem;
    line-height: 1.55;
    color: #ffffff;
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

form > label:not(.check) {
    width: min(100%, 280px);
    margin: 12px 0 7px;
    text-align: left;
    font-weight: 700;
}

input[type="text"],
input[type="email"] {
    width: min(100%, 280px);
    padding: 10px 12px;
    border: 1px solid #666;
    border-radius: 7px;
    background: #1d1d1d;
    color: #fff;
    font-size: 1rem;
}

.check {
    width: min(100%, 280px);
    display: flex;
    align-items: flex-start;
    gap: 9px;
    margin: 19px 0;
    text-align: left;
    font-size: 0.9rem;
    line-height: 1.45;
    font-weight: normal;
}

.check input {
    margin-top: 3px;
}

button {
    width: min(100%, 280px);
    padding: 12px 14px;
    border: 0;
    border-radius: 7px;
    background: #c4161c;
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
}

button:hover {
    background: #e11f26;
}

.not-now {
    display: inline-block;
    margin-top: 18px;
    color: #fff;
    font-size: 0.95rem;
    text-decoration: none;
}

.not-now:hover {
    text-decoration: underline;
}

.closing-text {
    max-width: 500px;
    margin: 0 auto 24px;
    text-align: left;
    line-height: 1.25;
    color: #f1f1f1;
    text-shadow: 0 2px 8px rgba(0,0,0,0.85);
}

@media (max-width: 600px) {

    .page {
        width: 100%;
        padding: 24px 12px 28px;
    }

    .intro,
    .closing-text {
        width: 100%;
        max-width: none;
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }

    .intro h1 {
        width: 100%;
        margin-left: auto;
        margin-right: auto;
        font-size: 2.25rem;
        line-height: 1.08;
        text-align: center;
    }

    .three-lines {
        width: 100%;
        max-width: none;
        margin-left: auto;
        margin-right: auto;
        font-size: 1rem;
        line-height: 1.55;
        text-align: center;
    }

    .form-panel {
        width: calc(100% - 8px);
        max-width: none;
        margin: 26px auto;
        padding: 24px 16px 22px;
        text-align: center;
    }

    .form-heading {
        width: 100%;
        text-align: center;
    }

    form {
        width: 100%;
        align-items: center;
    }

    form > label:not(.check),
    input[type="text"],
    input[type="email"],
    .check,
    button {
        width: 100%;
        max-width: 360px;
    }

    .check {
        text-align: left;
    }

    .footer-logo {
        width: min(400px, 92vw);
        height: auto;
    }
}