body, html {
    margin: 0;
    padding: 0;
    overflow: auto;
    height: 100%;
    font-family: Arial, Helvetica, sans-serif;
}

body.light-mode {
    background: linear-gradient(135deg, #f8f6f2 0%, #efe8e1 45%, #f3e7e1 100%);
    color: #2f2a3d;
}

body.dark-mode {
    background: linear-gradient(135deg, #121826 0%, #1d2433 45%, #2a2f4a 100%);
    color: #f5efe8;
}

#catWall {
    display: flex;
    flex-wrap: wrap;
    width: min(100vw, 1040px);
    margin: 0 auto;
    min-height: 100vh;
    padding: 2rem 1rem 80px;
    box-sizing: border-box;
    align-content: flex-start;
    justify-content: center;
    gap: 0.25rem;
}

.banner {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    min-height: 64px;
    background: rgba(255, 255, 255, 0.82);
    color: #2f2a3d;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    border-radius: 999px;
    box-shadow: 0 12px 30px rgba(46, 36, 53, 0.16);
    z-index: 1000;
    font-size: 16px;
    padding: 0.75rem 1rem;
    backdrop-filter: blur(12px);
}

.cat-img {
    width: 100px;
    height: 100px;
    margin: 0;
    border-radius: 12px;
    object-fit: cover;
    display: block;
    box-shadow: 0 8px 20px rgba(46, 36, 53, 0.12);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

#loadSentinel {
    width: 100%;
    height: 1px;
}

.banner {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    height: 60px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 30px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    font-size: 16px;
    padding: 0 20px;
}

body.light-mode .banner {
    background: rgba(255, 255, 255, 0.82);
    color: #2f2a3d;
}

body.dark-mode .banner {
    background: rgba(17, 24, 39, 0.82);
    color: #f5efe8;
}

.button {
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 700;
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    color: #fff;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    margin: 0 6px;
    min-width: 120px;
    text-align: center;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 24px rgba(124, 58, 237, 0.24);
}

.button:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, #7c3aed, #6d28d9);
}

.button-secondary {
    background: rgba(255, 255, 255, 0.7);
    color: #1f2937;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.12);
}

.button-secondary:hover {
    background: rgba(255, 255, 255, 0.85);
    color: #1f2937;
    transform: translateY(-2px);
}

body.dark-mode .button-secondary {
    background: rgba(255, 255, 255, 0.14);
    color: #f9fafb;
}

body.dark-mode .button-secondary:hover {
    background: rgba(255, 255, 255, 0.22);
    color: #f9fafb;
}