/* 笔顺工具样式 - 参考 ICO 工具风格 */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #111827;
    background-color: #f9fafb;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.5rem 1rem 2.5rem;
}

.header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.page-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 2rem;
    font-weight: 700;
    color: #111827;
    margin: 0 0 0.5rem;
}

.page-subtitle {
    margin: 0;
    font-size: 0.975rem;
    color: #6b7280;
}

.card {
    background: #ffffff;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.1), 0 1px 2px rgba(15, 23, 42, 0.06);
    border: 1px solid #e5e7eb;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: #111827;
    margin: 0 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #eef2ff;
}

.section-title svg {
    color: #4f46e5;
}

/* 输入区域 */
.input-area {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.text-input {
    flex: 1;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    font-family: inherit;
}

.text-input:focus {
    outline: none;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 1rem;
}

.btn {
    padding: 0.6rem 1.4rem;
    border-radius: 0.5rem;
    border: none;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.1s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #4f46e5, #6366f1);
    color: #ffffff;
    box-shadow: 0 8px 18px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4338ca, #4f46e5);
    box-shadow: 0 12px 24px rgba(79, 70, 229, 0.45);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 6px 12px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background: #6b7280;
    color: #ffffff;
}

.btn-secondary:hover {
    background: #4b5563;
}

/* 快速选择 */
.quick-chars {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding-top: 0.75rem;
    border-top: 1px solid #e5e7eb;
}

.quick-label {
    font-size: 0.875rem;
    color: #6b7280;
    font-weight: 500;
}

.quick-char-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #374151;
}

.quick-char-btn:hover {
    background: #e5e7eb;
    border-color: #4f46e5;
    color: #4f46e5;
}

/* 绘制容器 */
.draw-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 1.5rem;
    background: #f9fafb;
    border-radius: 0.5rem;
    border: 2px dashed #e5e7eb;
    min-height: 200px;
}

/* 字符笔顺区域 */
.char-stroke-section {
    background: white;
    border-radius: 0.5rem;
    padding: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    display: flex;
}

.char-section-label {
    font-size: 1.25rem;
    font-weight: 600;
    color: #4f46e5;
    text-align: center;
    padding-bottom: 0.5rem;
    border-right: 2px solid #eef2ff;
    display: flex;
    align-items: center;
    padding: 0 12px;
    margin-right: 12px;
}

/* 笔画容器（横向排列） */
.stroke-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: flex-start;
    align-items: flex-start;
    display: flex;
    align-items: center;
}

/* stroke模式生成的每个笔画块 */
.stroke-wrapper .hanzi-writer-target {
    background: #f9fafb;
    border-radius: 0.375rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    padding: 0.5rem;
    margin: 0;
    flex-shrink: 0;
}

/* 动画容器（横向排列） */
.animation-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 0.5rem 0;
}

/* 动画模式的字符绘制块 */
.char-draw-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex-shrink: 0;
}

.char-draw-block .char-label {
    font-size: 0.875rem;
    color: #6b7280;
    margin-top: 0.5rem;
    font-weight: 500;
}

/* 动画模式的绘制容器 */
.draw-container .char-draw-block .hanzi-writer-target {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 1rem;
    margin: 0;
}

/* 使用说明 */
.guide-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.guide-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.guide-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    font-weight: 600;
    flex-shrink: 0;
}

.guide-text {
    flex: 1;
    color: #374151;
    line-height: 1.6;
}

.guide-text strong {
    color: #111827;
}

/* 加载状态 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: #6b7280;
    font-size: 0.875rem;
}

.loading::before {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid #e5e7eb;
    border-top-color: #4f46e5;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 0.5rem;
}

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

/* 错误提示 */
.error-message {
    padding: 1rem;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 0.5rem;
    color: #991b1b;
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.error-message svg {
    flex-shrink: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 1.5rem;
    }
    
    .input-area {
        flex-direction: column;
    }
    
    .draw-container {
        padding: 1rem;
        gap: 1rem;
    }
    
    .draw-container .hanzi-writer-target {
        padding: 0.75rem;
    }
}