<template>
	<div class="not-found-container">
		<div class="tech-decoration">
			<div class="tech-circle"></div>
			<div class="tech-circle"></div>
			<div class="tech-circle"></div>
		</div>

		<div class="not-found-content">
			<div class="error-code">404</div>
			<div class="error-title">页面未找到</div>
			<div class="error-description">抱歉，您访问的页面不存在或已被移除</div>

			<div class="action-buttons">
				<a-button type="primary" size="large" @click="goBack">
					<template #icon>
						<ArrowLeftOutlined />
					</template>
					返回上一页
				</a-button>
				<a-button size="large" @click="goHome">
					<template #icon>
						<HomeOutlined />
					</template>
					返回首页
				</a-button>
			</div>
		</div>
	</div>
</template>

<script setup>
import { useRouter } from 'vue-router'
import { ArrowLeftOutlined, HomeOutlined } from '@ant-design/icons-vue'
import '@/assets/style/auth.scss'

const router = useRouter()

// Go back to previous page
const goBack = () => {
	router.back()
}

// Go to home page
const goHome = () => {
	router.push('/')
}
</script>

<style scoped lang="scss">
.not-found-container {
	width: 100%;
	min-height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
	position: relative;
	overflow: hidden;

	.tech-decoration {
		position: absolute;
		width: 100%;
		height: 100%;
		top: 0;
		left: 0;
		pointer-events: none;
		overflow: hidden;

		.tech-circle {
			position: absolute;
			border: 2px solid rgba(255, 107, 53, 0.1);
			border-radius: 50%;
			animation: pulse 4s ease-in-out infinite;
		}

		.tech-circle:nth-child(1) {
			width: 300px;
			height: 300px;
			top: -150px;
			left: -150px;
			animation-delay: 0s;
		}

		.tech-circle:nth-child(2) {
			width: 200px;
			height: 200px;
			bottom: -100px;
			right: -100px;
			animation-delay: 1s;
		}

		.tech-circle:nth-child(3) {
			width: 150px;
			height: 150px;
			bottom: 20%;
			left: -75px;
			animation-delay: 2s;
		}
	}
}

@keyframes pulse {
	0%,
	100% {
		opacity: 0.3;
		transform: scale(1);
	}

	50% {
		opacity: 0.6;
		transform: scale(1.05);
	}
}

.not-found-content {
	text-align: center;
	padding: 40px;
	position: relative;
	z-index: 1;

	.error-code {
		font-size: 120px;
		font-weight: 700;
		background: linear-gradient(135deg, var(--auth-primary-dark), var(--auth-primary));
		-webkit-background-clip: text;
		-webkit-text-fill-color: transparent;
		background-clip: text;
		margin-bottom: 20px;
		line-height: 1;
		animation: float 3s ease-in-out infinite;
	}

	@keyframes float {
		0%,
		100% {
			transform: translateY(0);
		}

		50% {
			transform: translateY(-10px);
		}
	}

	.error-title {
		font-size: 32px;
		font-weight: 600;
		color: var(--text-primary);
		margin-bottom: 16px;
	}

	.error-description {
		font-size: 16px;
		color: var(--text-secondary);
		margin-bottom: 40px;
		line-height: 1.6;
	}

	.action-buttons {
		display: flex;
		gap: 16px;
		justify-content: center;
		flex-wrap: wrap;

		.ant-btn {
			height: 48px;
			padding: 0 32px;
			font-size: 16px;
			font-weight: 600;
			border-radius: 12px;

			&.ant-btn-primary {
				background: linear-gradient(135deg, var(--auth-primary), var(--auth-primary-dark));
				border: none;
				box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
				transition: all 0.3s ease;

				&:hover {
					background: linear-gradient(135deg, var(--auth-primary-light), var(--auth-primary));
					transform: translateY(-2px);
					box-shadow: 0 12px 32px rgba(255, 107, 53, 0.45);
				}
			}

			&:not(.ant-btn-primary) {
				background: rgba(255, 255, 255, 0.9);
				border: 2px solid var(--border-color);
				color: var(--text-secondary);
				box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
				transition: all 0.3s ease;

				&:hover {
					border-color: var(--auth-primary);
					color: var(--auth-primary);
					transform: translateY(-2px);
					box-shadow: 0 8px 20px rgba(255, 107, 53, 0.15);
				}
			}
		}
	}
}

// Responsive design
@media (max-width: 768px) {
	.not-found-content {
		padding: 20px;

		.error-code {
			font-size: 80px;
		}

		.error-title {
			font-size: 24px;
		}

		.error-description {
			font-size: 14px;
		}

		.action-buttons {
			.ant-btn {
				width: 100%;
				max-width: 200px;
			}
		}
	}
}
</style>
