* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html,
body {
	width: 100%;
	height: 100%;
	overflow: hidden;
}

body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
	background: linear-gradient(135deg, #0c0c1e 0%, #1a1a3e 50%, #0d1b2a 100%);
	min-height: 100vh;
	display: flex;
	justify-content: center;
	align-items: center;
	overflow: hidden;
	position: relative;
	margin: 0;
	padding: 0;
}

/* 粒子缠绕效果 */
#particles-canvas {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 0;
}

/* 深空科技主题 */
body.theme-dark {
	--card-bg: #0f172a;
	--card-border: rgba(0, 195, 255, 0.5);
	--card-shadow: rgba(0, 195, 255, 0.2);
	--logo-gradient: linear-gradient(135deg, #00c3ff 0%, #0066ff 100%);
	--logo-shadow: rgba(0, 195, 255, 0.4);
	--text-primary: #ffffff;
	--text-secondary: rgba(255, 255, 255, 0.7);
	--text-muted: rgba(255, 255, 255, 0.5);
	--input-bg: rgba(0, 0, 0, 0.4);
	--input-border: rgba(0, 195, 255, 0.5);
	--btn-bg: linear-gradient(135deg, #00c3ff 0%, #0066ff 100%);
	--btn-hover: linear-gradient(135deg, #00d4ff 0%, #0077ff 100%);
}

/* 登录卡片 */
.login-container {
	position: relative;
	z-index: 1;
	width: 100%;
	max-width: 420px;
	padding: 20px;
}

.login-card {
	background: var(--card-bg);
	backdrop-filter: blur(20px);
	border: 1px solid var(--card-border);
	border-radius: 16px;
	padding: 48px 40px;
	box-shadow:
		0 0 40px var(--card-shadow),
		inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.login-header {
	text-align: center;
	margin-bottom: 40px;
}

.login-logo {
	width: 64px;
	height: 64px;
	margin: 0 auto 20px;
	background: var(--logo-gradient);
	border-radius: 16px;
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow: 0 4px 20px var(--logo-shadow);
}

.login-logo svg {
	width: 36px;
	height: 36px;
	fill: white;
}

.login-header h1 {
	color: var(--text-primary);
	font-size: 24px;
	font-weight: 600;
	margin-bottom: 8px;
	letter-spacing: 1px;
}

.login-header p {
	color: var(--text-secondary);
	font-size: 14px;
}

.form-group {
	margin-bottom: 24px;
}

.form-group label {
	display: block;
	color: var(--text-primary);
	font-size: 14px;
	margin-bottom: 8px;
	font-weight: 500;
}

.input-wrapper {
	position: relative;
}

.input-wrapper svg {
	position: absolute;
	left: 16px;
	top: 50%;
	transform: translateY(-50%);
	width: 20px;
	height: 20px;
	fill: var(--text-secondary);
	transition: fill 0.3s;
}

.form-input {
	width: 100%;
	padding: 14px 16px 14px 48px;
	background: var(--input-bg);
	border: 1px solid var(--input-border);
	border-radius: 10px;
	color: var(--text-primary);
	font-size: 15px;
	transition: all 0.3s;
	outline: none;
}

.form-input::placeholder {
	color: var(--text-muted);
}

.form-input:focus {
	border-color: var(--card-border);
	background: var(--input-bg);
	box-shadow: 0 0 0 2px var(--card-shadow);
}

.form-input:focus+svg,
.input-wrapper:hover svg {
	fill: #00c3ff;
}

.login-btn {
	width: 100%;
	padding: 14px;
	background: var(--btn-bg);
	border: none;
	border-radius: 10px;
	color: #fff;
	font-size: 16px;
	font-weight: 600;
	cursor: pointer;
	transition: all 0.3s;
	position: relative;
	overflow: hidden;
}

.login-btn:hover {
	transform: translateY(-2px);
	background: var(--btn-hover);
	box-shadow: 0 6px 20px var(--card-shadow);
}

.login-btn:active {
	transform: translateY(0);
}

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

.login-btn .btn-text {
	transition: opacity 0.3s;
}

.login-btn.loading .btn-text {
	opacity: 0;
}

/* 隐藏浏览器默认验证提示 */
input::-webkit-validation-bubble,
input::-webkit-validation-bubble-message,
input::-webkit-validation-bubble-heading,
input::-webkit-validation-bubble-text {
	display: none !important;
}

input:invalid {
	box-shadow: none !important;
}

/* 现代浏览器 */
input::-ms-validation-bubble {
	display: none !important;
}

.login-btn .spinner {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 20px;
	height: 20px;
	border: 2px solid rgba(255, 255, 255, 0.3);
	border-top-color: #fff;
	border-radius: 50%;
	opacity: 0;
	animation: spin 0.8s linear infinite;
}

.login-btn.loading .spinner {
	opacity: 1;
}

@keyframes spin {
	to {
		transform: translate(-50%, -50%) rotate(360deg);
	}
}

.error-message {
	background: rgba(255, 71, 87, 0.15);
	border: 1px solid rgba(255, 71, 87, 0.4);
	border-radius: 8px;
	padding: 10px 16px;
	color: #ff6b7a;
	font-size: 13px;
	text-align: center;
	display: none;
}

.error-message.show {
	display: block;
	animation: shake 0.5s ease;
}

@keyframes shake {

	0%,
	100% {
		transform: translateX(0);
	}

	25% {
		transform: translateX(-5px);
	}

	75% {
		transform: translateX(5px);
	}
}

.demo-hint {
	text-align: center;
	margin-top: 24px;
	padding-top: 24px;
	border-top: 1px solid var(--card-border);
}

.demo-hint p {
	color: var(--text-muted);
	font-size: 13px;
}

.demo-hint code {
	background: var(--input-bg);
	padding: 2px 8px;
	border-radius: 4px;
	color: var(--logo-gradient);
	font-family: 'Monaco', 'Consolas', monospace;
}

/* 模态框样式 */
.modal-overlay {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: rgba(0, 0, 0, 0.7);
	display: none;
	align-items: center;
	justify-content: center;
	z-index: 1000;
}

.modal-overlay.show {
	display: flex;
}

.modal {
	background: var(--card-bg);
	border-radius: 12px;
	width: 100%;
	max-width: 400px;
	overflow: hidden;
	box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 16px 20px;
}

.modal-title {
	color: var(--text-primary);
	font-size: 16px;
	font-weight: 600;
}

.modal-close {
	background: none;
	border: none;
	cursor: pointer;
	padding: 4px;
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0.7;
	transition: opacity 0.2s;
}

.modal-close:hover {
	opacity: 1;
}

.modal-close svg {
	width: 20px;
	height: 20px;
	fill: var(--text-secondary);
}

.modal-body {
	padding: 24px 20px;
	text-align: center;
}

.modal-footer {
	display: flex;
	gap: 12px;
	justify-content: center;
	padding: 16px 20px;
}

.modal-footer .btn {
	flex: 1;
	max-width: 160px;
	height: 40px;
	font-size: 14px;
}

.btn {
	padding: 10px 20px;
	border: none;
	border-radius: 8px;
	font-size: 14px;
	cursor: pointer;
	transition: all 0.3s;
	background: var(--btn-bg);
	color: #fff;
}

.btn:hover {
	background: var(--btn-hover);
}

.btn-primary {
	background: var(--btn-bg);
}