:root {
    --bg:
        radial-gradient(circle at top left, rgba(26, 122, 230, 0.10), transparent 30%),
        radial-gradient(circle at bottom right, rgba(26, 122, 230, 0.06), transparent 25%),
        #f3f6fb;
    --text: #111111;
    --muted: #4b5563;
    --accent: #1a7ae6;
    --panel: rgba(255, 255, 255, 0.82);
    --border: rgba(17, 24, 39, 0.08);
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.10);

    --max-width: 760px;
    --radius: 22px;

    --logo-light: block;
    --logo-dark: none;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg:
            radial-gradient(circle at top left, rgba(26, 122, 230, 0.18), transparent 30%),
            radial-gradient(circle at bottom right, rgba(26, 122, 230, 0.10), transparent 25%),
            #050608;
        --text: #ffffff;
        --muted: #c9c9c9;
        --accent: #2b8cff;
        --panel: rgba(255, 255, 255, 0.05);
        --border: rgba(255, 255, 255, 0.08);
        --shadow: 0 24px 60px rgba(0, 0, 0, 0.42);

        --logo-light: none;
        --logo-dark: block;
    }
}

:root[data-theme="dark"] {
    --bg:
        radial-gradient(circle at top left, rgba(26, 122, 230, 0.18), transparent 30%),
        radial-gradient(circle at bottom right, rgba(26, 122, 230, 0.10), transparent 25%),
        #050608;
    --text: #ffffff;
    --muted: #c9c9c9;
    --accent: #2b8cff;
    --panel: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.42);

    --logo-light: none;
    --logo-dark: block;
}

:root[data-theme="light"] {
    --bg:
        radial-gradient(circle at top left, rgba(26, 122, 230, 0.10), transparent 30%),
        radial-gradient(circle at bottom right, rgba(26, 122, 230, 0.06), transparent 25%),
        #f3f6fb;
    --text: #111111;
    --muted: #4b5563;
    --accent: #1a7ae6;
    --panel: rgba(255, 255, 255, 0.82);
    --border: rgba(17, 24, 39, 0.08);
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.10);

    --logo-light: block;
    --logo-dark: none;
}

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

html {
    font-size: 16px;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    transition:
        background 0.25s ease,
        color 0.25s ease;
}

button,
input,
select,
textarea {
    font: inherit;
}

.page {
    min-height: 100vh;
    display: flex;
    align-items: flex-start;   /* statt center */
    justify-content: center;
    padding: 60px 24px 24px;   /* oben größer, unten kleiner */
}

.card {
    width: 100%;
    max-width: var(--max-width);
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: 18px 24px 34px; /* vorher: 28px 24px 34px */
    text-align: center;
    position: relative;
    transition:
        background 0.25s ease,
        border-color 0.25s ease,
        box-shadow 0.25s ease;
}


.topbar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    margin-bottom: 0;   /* vorher 6px */
}

.toplink,
.theme-toggle {
    color: var(--muted);
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid transparent;
    background: transparent;
    cursor: pointer;
    transition:
        background-color 0.2s ease,
        color 0.2s ease,
        border-color 0.2s ease,
        transform 0.2s ease;
}

.toplink:hover,
.toplink:focus-visible,
.theme-toggle:hover,
.theme-toggle:focus-visible {
    background: rgba(127, 127, 127, 0.10);
    color: var(--text);
    border-color: var(--border);
    outline: none;
}

.theme-toggle:active {
    transform: scale(0.98);
}

.logo-wrap {
    margin: 4px auto 26px;  /* vorher: 8px auto 28px */
    width: min(100%, 430px);
}

.logo {
    width: 100%;
    height: auto;
    display: none;
}

.logo-light {
    display: var(--logo-light);
}

.logo-dark {
    display: var(--logo-dark);
}


.claim {
    margin: 0 0 16px;
    font-size: clamp(1.2rem, 1.8vw, 1.5rem);
    line-height: 1.35;
    font-weight: 600;
    color: var(--accent);

}

.subclaim {
    margin: 0 auto 28px;
    max-width: 40rem;
    color: var(--muted);
    font-size: clamp(0.98rem, 1.5vw, 1.08rem);
    line-height: 1.6;
}

.text {
    margin: 0 auto 10px;
    max-width: 38rem;
    color: var(--muted);
    font-size: clamp(1rem, 1.7vw, 1.12rem);
    line-height: 1.65;
}

.mail {
    margin-top: 22px;
}

.mail a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 700;
    word-break: break-word;
}

.mail a:hover,
.mail a:focus-visible {
    text-decoration: underline;
}

@media (max-width: 640px) {
    .page {
        padding: 16px;
    }

    .card {
        padding: 14px 16px 24px;
        border-radius: 18px;
    }

    .topbar {
        gap: 6px;
        margin-bottom: 2px;
    }

    .toplink,
    .theme-toggle {
        padding: 7px 9px;
        font-size: 0.95rem;
    }

    .logo-wrap {
        width: min(100%, 320px);
        margin: 6px auto 20px;
    }

    .claim {
        font-size: clamp(1.25rem, 6vw, 1.7rem);
        margin-bottom: 14px;
    }

    .subclaim {
        margin-bottom: 22px;
        font-size: 0.98rem;
    }

    .text {
        font-size: 1rem;
        line-height: 1.6;
    }

    .mail {
        margin-top: 18px;
    }
}