body { font-family: system-ui; display: flex; justify-content: center; background: #f4f7f6; }
.app-container { width: 100%; max-width: 500px; margin-top: 50px; text-align: center; }

.scroll-window { 
    height: 400px; overflow-y: auto; background: white; 
    border-radius: 12px; padding: 20px; margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1); text-align: left;
    display: flex; flex-direction: column; gap: 15px;
    position: relative;
}

#empty-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
    text-align: center;
    color: #aaa;
}

.placeholder-content .icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 10px;
    opacity: 0.5;
}

.placeholder-content p {
    font-size: 1.1rem;
    font-weight: 500;
    margin: 5px 0;
    color: #666;
}

.placeholder-content small {
    display: block;
    max-width: 250px;
    margin: 0 auto;
    line-height: 1.4;
}

.entry { border-left: 4px solid #f63; padding-left: 10px; }
.entry small { color: #888; display: block; margin-top: 5px; }

.controls { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.btn-main { padding: 15px 30px; font-size: 1.1rem; border-radius: 50px; border: none; background: #f63; color: white; cursor: pointer; transition: 0.2s; }
.btn-main:disabled { background: #ccc; cursor: not-allowed; }
.btn-sub { background: none; border: none; color: #666; text-decoration: underline; cursor: pointer; }
.hidden { display: none; }

.user-text {
    color: #888;
    font-style: italic;
    display: block;
    margin-bottom: 10px;
    line-height: 1.4;
}

hr {
    border: 0;
    border-top: 1px solid #eee;
    margin: 15px 0;
}

.entry h2 { font-size: 1rem; margin-top: 15px; margin-bottom: 5px; color: #333; }
.entry p { margin: 5px 0; font-size: 0.95rem; color: #444; }

.entry { 
    border-left: 4px solid #f63; 
    padding: 10px 15px; 
    background: #fafafa;
    border-radius: 0 8px 8px 0;
}

.danger-zone { margin-top: 30px; padding-top: 20px; border-top: 1px solid #eee; }
.btn-clear { 
    background: none; border: 1px solid #ff4444; color: #ff4444; 
    padding: 8px 16px; border-radius: 20px; cursor: pointer; font-size: 0.8rem;
}
.btn-clear:hover { background: #ff4444; color: white; }