:root {
    --cream: #fbf4ef;
    --paper: #fffaf6;
    --pink-pale: #f2d8d8;
    --pink: #bf7380;
    --pink-deep: #955461;
    --brown: #654f52;
    --muted: #9f8589;
    --line: rgba(149, 84, 97, 0.18);
    --font: "LXGW WenKai Screen", "PingFang SC", sans-serif;
}

html.font-loading {
    --font: "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    background: var(--cream);
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--brown);
    font-family: var(--font);
    font-weight: 400;
    font-synthesis: none;
    background:
        radial-gradient(circle at 18% 10%, rgba(242, 216, 216, 0.55), transparent 25rem),
        radial-gradient(circle at 82% 34%, rgba(246, 226, 213, 0.56), transparent 27rem),
        var(--cream);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.14;
    background-image: radial-gradient(rgba(123, 87, 91, 0.38) 0.55px, transparent 0.55px);
    background-size: 12px 12px;
}

a {
    color: inherit;
}

.journal-page {
    width: min(100% - 32px, 780px);
    margin: 0 auto;
    padding: 28px 0 46px;
}

.page-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--muted);
    font-size: 11px;
    letter-spacing: 0.08em;
}

.page-nav a {
    text-decoration: none;
    transition: color 0.2s ease;
}

.page-nav a:hover {
    color: var(--pink-deep);
}

.page-nav span {
    color: var(--pink-deep);
}

.cover {
    display: grid;
    grid-template-columns: 110px minmax(240px, 1fr) minmax(230px, 0.9fr);
    align-items: center;
    gap: 12px;
    min-height: 430px;
    padding: 46px 10px 32px;
}

.date-stamp {
    align-self: start;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 92px;
    padding: 14px 8px 12px;
    border: 1px solid rgba(149, 84, 97, 0.22);
    border-radius: 18px 12px 20px 14px;
    color: var(--pink-deep);
    background: rgba(255, 250, 246, 0.72);
    transform: rotate(-2deg);
}

.date-stamp span {
    font-size: 9px;
    letter-spacing: 0.18em;
}

.date-stamp strong {
    margin: 3px 0;
    font-size: 34px;
    font-weight: 400;
    line-height: 1;
}

.date-stamp time {
    color: var(--muted);
    font-size: 9px;
}

.cover-portrait {
    position: relative;
    display: grid;
    place-items: center;
}

.cover-portrait::before {
    content: "";
    position: absolute;
    width: 82%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: rgba(242, 216, 216, 0.5);
    filter: blur(25px);
}

.cover-portrait img {
    position: relative;
    display: block;
    width: 100%;
    height: auto;
    animation: breathe 5s ease-in-out infinite;
}

.cover-copy {
    position: relative;
    z-index: 1;
}

.cover-copy p {
    margin: 0 0 12px;
    color: var(--pink);
    font-size: 13px;
}

.cover-copy h1 {
    margin: 0;
    color: var(--pink-deep);
    font-size: clamp(36px, 6vw, 50px);
    font-weight: 400;
    line-height: 1.35;
}

.cover-copy span {
    display: block;
    margin-top: 17px;
    color: var(--muted);
    font-size: 10px;
    letter-spacing: 0.06em;
}

.letter-paper {
    position: relative;
    padding: 52px 58px 46px;
    border: 1px solid var(--line);
    border-radius: 24px 15px 22px 17px;
    background: rgba(255, 250, 246, 0.92);
    box-shadow: 0 14px 34px rgba(105, 76, 80, 0.08);
}

.paper-tape {
    position: absolute;
    top: -9px;
    left: 50%;
    width: 78px;
    height: 20px;
    background: rgba(232, 193, 190, 0.56);
    transform: translateX(-50%) rotate(-1deg);
}

.letter-paper > p {
    margin: 0 0 24px;
    font-size: 15px;
    line-height: 2.15;
    text-align: justify;
}

.letter-paper .greeting {
    margin-bottom: 28px;
    color: var(--pink-deep);
    font-size: 18px;
}

.keepsake-note {
    width: min(100%, 520px);
    margin: 34px auto;
    padding: 24px 28px 22px;
    border: 1px solid rgba(149, 84, 97, 0.13);
    border-radius: 16px 22px 15px 19px;
    background: rgba(246, 225, 226, 0.64);
    transform: rotate(-0.35deg);
}

.keepsake-note p {
    margin: 0 0 14px;
    color: var(--pink-deep);
    font-size: 14px;
}

.keepsake-note ul {
    margin: 0;
    padding-left: 1.2em;
    color: #7e686c;
    font-size: 13px;
    line-height: 2;
}

.keepsake-note li::marker {
    color: var(--pink);
}

.letter-signature {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
    margin-top: 42px;
    color: var(--muted);
    font-size: 12px;
}

.letter-signature strong {
    color: var(--pink-deep);
    font-size: 18px;
    font-weight: 400;
}

.letter-signature time {
    font-size: 10px;
}

.back-home {
    display: block;
    width: fit-content;
    margin: 30px auto 0;
    padding: 10px 19px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--pink-deep);
    background: rgba(255, 250, 246, 0.6);
    font-size: 12px;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.2s ease;
}

.back-home:hover {
    background: var(--pink-pale);
    transform: translateY(-2px);
}

@keyframes breathe {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-6px);
    }
}

@media (max-width: 680px) {
    .journal-page {
        width: min(100% - 22px, 560px);
        padding-top: 20px;
    }

    .cover {
        grid-template-columns: 1fr;
        gap: 2px;
        padding: 46px 6px 26px;
        text-align: center;
    }

    .date-stamp {
        position: absolute;
        z-index: 2;
        align-self: auto;
        width: 76px;
    }

    .date-stamp strong {
        font-size: 27px;
    }

    .cover-portrait {
        width: min(100%, 370px);
        margin: 0 auto;
    }

    .cover-copy {
        margin-top: -4px;
    }

    .letter-paper {
        padding: 42px 24px 36px;
    }

    .letter-paper > p {
        font-size: 14px;
        line-height: 2;
        text-align: left;
    }

    .keepsake-note {
        padding: 22px 20px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}