:root {
    --floating-duration: 8s;
    --bg-color: #f8f7f2;
    --paper-texture: url("cream-paper.png");
    --text-color: #2c2c2c;
    --meta-color: #888;
    --border-color: #ddd;
    --glow-opacity: 0;
    --btn-border-color: #333;
    --btn-icon-color: #333;
}
@font-face {
  font-family: 'font';
  src: url('XANO-mincho-U32.ttf') format('truetype');
}
body {
    background-color: var(--bg-color);
    background-image: var(--paper-texture);
    color: var(--text-color);
    font-family: 'font', serif;
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
    overflow: hidden;
    transition: background-color 1.5s ease, color 1.5s ease, border-color 1.5s ease;
}
body.dark-mode {
    --bg-color: #161614;
    --paper-texture: url("black-paper.png");
    --text-color: #b3a594;
    --meta-color: #555;
    --border-color: #333333;
    --glow-opacity: 0.3;
    --btn-border-color: #b3a594;
    --btn-icon-color: #b3a594;
}
#diary-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    overflow-x: auto;
    overflow-y: hidden;
    height: 100vh;
    padding: 20px; padding-right: 100px;
    border-right: 1px solid var(--border-color);
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}
#diary-container::-webkit-scrollbar {
    height: 4px;
}
#diary-container::-webkit-scrollbar-thumb {
    background: #e0ddd5;
    border-radius: 10px;
}
@keyframes floating {
    0% {
        translate: 0;
    }
    50% {
        translate: 0 -5px;  
    }
    100% {
        translate: 0;
    }
}
.entry {
    writing-mode: vertical-rl;
    margin-left: 120px;
    height: 60vh;
    opacity: 0;
    filter: blur(5px);
    transition: opacity 2s ease, transform 2s ease, filter 2s ease;
}
.entry:first-of-type {
    margin-left: 100px;
}
.entry.is-visible {
    opacity: .8;
    filter: blur(0);
    animation: floating var(--floating-duration) ease-in-out infinite;
}
.entry.is-visible:hover {
    opacity: 1;
}
.date { font-size: 0.8em; color: var(--meta-color); margin-bottom: 30px; }
.text { font-size: 1.25em; font-weight: 300; line-height: 2.8; letter-spacing: 0.2em; flex-grow: 1; text-shadow: 0 0 5px rgba(179, 165, 148, var(--glow-opacity)); }
.footer { font-size: 0.7em; color: var(--meta-color); text-align: end; }
#music-toggle, #theme-toggle {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--meta-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.5s ease;
    z-index: 2000;
    outline: none;
    backdrop-filter: blur(2px);
}
#music-toggle {
    right: 40px;
}
#theme-toggle {
    right: 100px;
}
#music-toggle:hover, #theme-toggle:hover {
    color: var(--btn-icon-color);
    border-color: var(--btn-border-color);
    transform: scale(1.1);
}
#music-toggle svg, #theme-toggle svg {
    width: 20px;
    height: 20px;
}