/**
 * 登录注册页面样式
 * Auth Page Styles
 */

/* 页面背景 */
body {
    min-height: 100vh;
    background: var(--color-bg-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

/* 主题切换容器 */
.theme-toggle-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--color-border-light);
    border-radius: 20px;
    z-index: 1000;
}

[data-theme="dark"] .theme-toggle-container {
    background: rgba(45, 45, 47, 0.9);
    border-color: var(--color-border);
}

.theme-icon {
    font-size: 16px;
}

/* 开关切换样式 */
.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: #e0e0e0;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.3s;
}

.toggle-switch.active {
    background: var(--color-primary);
}

.toggle-slider {
    position: absolute;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: left 0.3s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.toggle-switch.active .toggle-slider {
    left: 22px;
}

/* 认证容器 */
.auth-container {
    width: 100%;
    max-width: 400px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
    animation: fadeInUp 0.5s ease-out;
}

[data-theme="dark"] .auth-container {
    background: rgba(45, 45, 47, 0.9);
    border-color: rgba(255, 255, 255, 0.1);
}

/* Logo */
.auth-logo {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.auth-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.auth-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* 标签切换 */
.auth-tabs {
    display: flex;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    padding: 4px;
    margin-bottom: var(--spacing-lg);
}

.auth-tab {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.auth-tab.active {
    background: var(--color-bg-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

/* 表单 */
.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.2);
}

/* 提交按钮 */
.auth-button {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: var(--spacing-md);
}

.auth-button:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.auth-button:active {
    transform: translateY(0);
}

.auth-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 消息提示 */
.auth-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    display: none;
}

.auth-message.success {
    display: block;
    background: rgba(52, 199, 89, 0.15);
    color: #34c759;
}

.auth-message.error {
    display: block;
    background: rgba(255, 59, 48, 0.15);
    color: #ff3b30;
}

/* 返回链接 */
.auth-back {
    display: inline-block;
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.auth-back:hover {
    color: var(--color-primary);
}

/* 淡入动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================
   移动端响应式样式
   ============================================================ */

@media (max-width: 768px) {
    body {
        padding: var(--spacing-md);
    }

    /* 主题切换 */
    .theme-toggle-container {
        top: 12px;
        right: 12px;
        padding: 6px 10px;
    }

    .auth-container {
        padding: var(--spacing-xl);
    }

    .auth-logo {
        font-size: 3rem;
    }

    .auth-title {
        font-size: var(--font-size-lg);
    }
}

@media (max-width: 480px) {
    body {
        padding: var(--spacing-sm);
    }

    .theme-toggle-container {
        top: 8px;
        right: 8px;
        padding: 4px 8px;
    }

    .theme-icon {
        font-size: 12px;
    }

    .toggle-switch {
        width: 36px;
        height: 20px;
    }

    .toggle-slider {
        width: 16px;
        height: 16px;
    }

    .toggle-switch.active .toggle-slider {
        left: 18px;
    }

    .auth-container {
        padding: var(--spacing-lg);
    }

    .auth-logo {
        font-size: 2.5rem;
    }

    .form-group input {
        padding: var(--spacing-sm);
    }
}