:root {
    --color-bg: #FFFEF5;
    --color-accent: #FFE55C;
    --color-accent-hover: #FFD93D;
    --color-text: #1A1A1A;
    --color-text-muted: #6B6B6B;
    --color-line: #E8E8E8;
    --color-white: #FFFFFF;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

.lightning-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background-image: 
        url('data:image/svg+xml,<svg width="1200" height="800" xmlns="http://www.w3.org/2000/svg"><path d="M 100,200 Q 300,150 500,250" stroke="%23E8E8E8" stroke-width="1.5" fill="none" opacity="0.4"/><path d="M 800,100 L 850,180 L 820,200 L 870,300" stroke="%23E8E8E8" stroke-width="1" fill="none" opacity="0.3"/><path d="M 200,600 L 240,550 L 220,530 L 260,480" stroke="%23E8E8E8" stroke-width="1" fill="none" opacity="0.3"/><path d="M 900,500 Q 950,450 1000,550" stroke="%23E8E8E8" stroke-width="1.5" fill="none" opacity="0.4"/></svg>');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

main.container {
    max-width: 800px;
    padding-top: 3rem;
    padding-bottom: 3rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 400;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

header p {
    font-size: 1rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.main-card {
    background: var(--color-white);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    margin-bottom: 2rem;
}

label {
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

textarea {
    resize: vertical;
    border: 1px solid var(--color-line);
    background-color: var(--color-white);
    transition: all 0.2s ease;
    font-size: 1rem;
}

textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(255, 229, 92, 0.15);
}

.submit-btn {
    background-color: var(--color-accent);
    color: var(--color-text);
    border: none;
    padding: 0.875rem 2rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    margin-top: 1rem;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.submit-btn:hover:not(:disabled) {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 229, 92, 0.3);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.spinner {
    display: none;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--color-text);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.spinner.active {
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error-message {
    background-color: #FEE;
    border-left: 3px solid #C33;
    color: #C33;
    padding: 1rem;
    border-radius: 6px;
    margin-top: 1.5rem;
}

.answer-card {
    background-color: #FAFAFA;
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 2rem;
    border-left: 3px solid var(--color-accent);
}

.answer-card h2 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.answer-text {
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 1rem;
}

.metadata {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding-top: 1rem;
    border-top: 1px solid var(--color-line);
}

.tag {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    background-color: var(--color-white);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    border: 1px solid var(--color-line);
}

.site-footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--color-text-muted);
}

.site-footer small {
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    main.container {
        padding-top: 2rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .main-card {
        padding: 1.5rem;
    }
}