html {
    padding: 0;
    margin: 0;
    background:
            url(/app/noise.svg),
            linear-gradient(160deg, #06adea 0%, #1a2327 60%, #0884b3 100%);
    background-blend-mode: soft-light, normal;
    overflow: hidden;
}

body {
    padding: 0;
    margin: 0;
    overflow-x: hidden;
}

#container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100dvh;
    box-sizing: border-box;
    padding: 80px 80px;
}

.letter {
    position: relative;
    width: min(480px, calc(100vw - 80px));
    padding: 72px 80px 80px;
    box-sizing: border-box;

    background-color: #faf6ef;
    /* very faint horizontal lines like writing paper */
    background-image: repeating-linear-gradient(
        transparent,
        transparent 31px,
        rgba(180, 160, 120, 0.18) 31px,
        rgba(180, 160, 120, 0.18) 32px
    );
    background-size: 100% 32px;
    background-position: 0 64px;

    color: #2c2010;
    font-family: Georgia, 'Times New Roman', serif;
    text-align: center;

    transform: rotate(-3.7deg);

    box-shadow:
        0 1px 2px rgba(0, 0, 0, 0.25),
        0 4px 8px rgba(0, 0, 0, 0.2),
        0 12px 24px rgba(0, 0, 0, 0.18),
        0 24px 48px rgba(0, 0, 0, 0.12);
}

.sticker {
    position: absolute;
    width: 180px;
    filter: drop-shadow(2px 3px 6px rgba(0, 0, 0, 0.45));
}

.sticker-loki {
    bottom: -48px;
    left: -50px;
    transform: rotate(-12deg);
}

.sticker-maze {
    bottom: -44px;
    right: -63px;
    transform: rotate(10deg);
}

/* inset border frame */
.letter::before {
    content: '';
    position: absolute;
    inset: 18px;
    border: 1px solid rgba(160, 130, 80, 0.25);
    pointer-events: none;
}

/* aged paper edge tint at top */
.letter::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #b8936a, #d4aa70, #b8936a);
}

.letter h3 {
    margin: 0 0 32px;
    font-size: 0.85rem;
    font-weight: normal;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: #8b6b3d;
}

.letter p {
    margin: 0;
    font-size: 2rem;
    font-style: italic;
    color: #2c2010;
    letter-spacing: 0.05em;
}

@media (max-width: 400px) {
    .letter p:first-of-type {
        font-size: 1.4rem;
    }
}

@media (max-width: 500px) {
    .letter p span {
        display: block;
        line-height: 1.4;
    }

    .letter p .amp {
        font-size: 1.2rem;
    }
}