/* ===== DIARY BOOK ===== */
.diary-book {
    width: 90%; max-width: 500px;
    min-height: 500px; padding: 0;
    background: linear-gradient(135deg, #1a0e1e 0%, #0f0a18 100%);
    border: 2px solid rgba(255,107,157,0.15);
    border-radius: 8px 24px 24px 8px;
    box-shadow: -4px 0 0 #2a1a2e, -8px 0 0 #1a0e1e,
                0 20px 60px rgba(0,0,0,0.5);
    position: relative; overflow: hidden;
    animation: slideUp 0.5s ease;
}
.diary-book::before {
    content: ''; position: absolute;
    left: 40px; top: 0; bottom: 0; width: 1px;
    background: rgba(255,107,157,0.1);
}
.diary-page {
    padding: 40px 32px 40px 56px;
    min-height: 420px;
}
.diary-date {
    font-size: 0.85rem; color: var(--pink);
    font-weight: 600; margin-bottom: 4px;
}
.diary-title {
    font-size: 1.4rem; font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--pink-light), var(--purple));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.diary-illustration {
    width: 100%; height: 160px;
    border-radius: 12px; margin-bottom: 16px;
    background: linear-gradient(135deg, rgba(255,107,157,0.1), rgba(168,85,247,0.1));
    border: 1px dashed var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: 3rem;
}
.diary-body {
    font-size: 0.95rem; line-height: 2;
    color: rgba(255,255,255,0.8);
}
.diary-affinity {
    margin-top: 20px; padding: 12px;
    background: rgba(255,107,157,0.05);
    border-radius: 12px; border: 1px solid rgba(255,107,157,0.1);
}
.diary-affinity-label {
    font-size: 0.8rem; color: var(--pink); margin-bottom: 6px;
}
.diary-affinity-bar {
    height: 6px; border-radius: 3px;
    background: rgba(255,255,255,0.1); overflow: hidden;
}
.diary-affinity-fill {
    height: 100%; border-radius: 3px;
    background: linear-gradient(90deg, var(--pink), var(--purple));
    transition: width 1s ease;
}
.diary-shard {
    display: flex; align-items: center; gap: 8px;
    margin-top: 12px; padding: 8px 12px;
    background: rgba(168,85,247,0.1);
    border-radius: 8px; font-size: 0.85rem;
}
.diary-shard-icon { font-size: 1.2rem; }
.diary-bgm {
    margin-top: 8px; font-size: 0.8rem;
    color: var(--text-dim); font-style: italic;
}
.diary-nav {
    display: flex; justify-content: center; align-items: center;
    gap: 16px; padding: 12px;
    border-top: 1px solid var(--border);
}
.diary-nav button {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--bg-glass); border: 1px solid var(--border);
    color: var(--text); cursor: pointer; transition: all 0.2s;
    font-size: 0.9rem;
}
.diary-nav button:hover { border-color: var(--pink); }
#diary-page-num { font-size: 0.85rem; color: var(--text-dim); }
.diary-close {
    position: absolute; top: 12px; right: 12px;
    width: 32px; height: 32px; border-radius: 50%;
    background: rgba(255,255,255,0.05); border: 1px solid var(--border);
    color: var(--text); cursor: pointer; font-size: 0.9rem;
    transition: all 0.2s;
}
.diary-close:hover { background: rgba(255,107,157,0.1); }

/* Empty diary state */
.diary-empty {
    text-align: center; padding: 60px 24px;
    color: var(--text-dim);
}
.diary-empty-icon { font-size: 4rem; margin-bottom: 12px; opacity: 0.3; }
.diary-empty p { font-size: 0.9rem; }