/**
 * KMP字符串匹配可视化样式
 * @author changyadai
 */

.container {
    max-width: 950px;
    padding: 25px;
}

.nav-link {
    position: absolute;
    top: 25px;
    left: 25px;
}

.section-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-align: center;
}

/* 输入区 */
.input-section {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
}

.input-group {
    flex: 1;
    max-width: 350px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.input-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    color: #fff;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 1rem;
}

.input-group input:focus {
    outline: none;
    border-color: #ec4899;
    box-shadow: 0 0 15px rgba(236, 72, 153, 0.3);
}

/* 前缀表 */
.prefix-section {
    margin-bottom: 20px;
}

.prefix-table {
    display: flex;
    justify-content: center;
    gap: 3px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    overflow-x: auto;
}

.prefix-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 32px;
}

.prefix-char {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(236, 72, 153, 0.2);
    border: 1px solid rgba(236, 72, 153, 0.4);
    border-radius: 5px;
    font-weight: bold;
    font-size: 0.9rem;
    margin-bottom: 3px;
}

.prefix-value {
    width: 32px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
}

.prefix-item.building .prefix-char {
    background: rgba(251, 191, 36, 0.4);
    border-color: #fbbf24;
}

.prefix-item.building .prefix-value {
    background: rgba(251, 191, 36, 0.3);
    color: #fff;
}

/* 匹配区 */
.match-section {
    margin-bottom: 20px;
}

.match-container {
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    overflow-x: auto;
}

.text-row, .pattern-row {
    display: flex;
    gap: 3px;
    min-height: 40px;
    margin-bottom: 10px;
}

.pattern-row {
    margin-bottom: 0;
    position: relative;
}

.char-box {
    width: 32px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 5px;
    font-weight: bold;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.char-box.text {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.char-box.pattern {
    background: rgba(236, 72, 153, 0.2);
    border: 1px solid rgba(236, 72, 153, 0.4);
}

.char-box.comparing {
    background: rgba(251, 191, 36, 0.4);
    border-color: #fbbf24;
    transform: scale(1.1);
    z-index: 10;
}

.char-box.match {
    background: rgba(34, 197, 94, 0.4);
    border-color: #22c55e;
}

.char-box.mismatch {
    background: rgba(239, 68, 68, 0.4);
    border-color: #ef4444;
    animation: shake 0.3s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    75% { transform: translateX(3px); }
}

.char-box.found {
    background: #22c55e;
    color: #fff;
    animation: foundPulse 0.5s ease;
}

@keyframes foundPulse {
    50% { transform: scale(1.2); }
}

.char-box.spacer {
    visibility: hidden;
}

/* 结果 */
.result-section {
    margin-bottom: 20px;
}

.match-results {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    min-height: 45px;
    align-items: center;
    color: rgba(255, 255, 255, 0.5);
}

.match-pos {
    padding: 8px 15px;
    background: rgba(34, 197, 94, 0.3);
    border: 1px solid #22c55e;
    border-radius: 6px;
    font-weight: bold;
    animation: posAppear 0.3s ease-out;
}

@keyframes posAppear {
    from { transform: scale(0); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* 响应式 */
@media (max-width: 768px) {
    .input-section {
        flex-direction: column;
    }
    
    .input-group {
        max-width: 100%;
    }
}