:root {
    --page-bg: #06262b;
    --accent: #55b8c4;
    --button-text: #06262b;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body,
form {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100%;
    background: var(--page-bg);
}

body {
    overflow-x: hidden;
}

.agenda-page {
    width: 100%;
    min-height: 100vh;
    background: var(--page-bg);
}

.agenda-image {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    margin: 0;
}

/* Floating registration button stays accessible while scrolling */
.register-btn {
    position: fixed;
    z-index: 9999;
    left: 50%;
    bottom: max(18px, env(safe-area-inset-bottom));
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-width: 230px;
    min-height: 58px;
    padding: 14px 34px;

    border: 2px solid rgba(255,255,255,.92);
    border-radius: 999px;
    background: var(--accent);
    color: var(--button-text);

    font-family: Arial, Tahoma, sans-serif;
    font-size: 21px;
    font-weight: 700;
    line-height: 1.2;
    text-decoration: none;

    box-shadow: 0 8px 24px rgba(0,0,0,.35);
}

.register-btn:hover {
    filter: brightness(1.08);
}

.register-btn:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 4px;
}

@media (max-width: 600px) {
    .register-btn {
        width: calc(100% - 28px);
        min-width: 0;
        min-height: 54px;
        bottom: max(12px, env(safe-area-inset-bottom));
        font-size: 19px;
        padding: 12px 20px;
    }
}

@media print {
    .register-btn {
        display: none;
    }
}