/* ========== DeepSpaceAi 亮色极简主题 ========== */

:root {
    --bg-primary: #f5f5f7;
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    --border-color: #e4e4e7;
    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-muted: #71717a;
    --accent-color: #4f46e5;
    --accent-hover: #6366f1;
    --accent-light: #eef2ff;
    --error-color: #ef4444;
    --success-color: #10b981;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-page {
    width: 100%;
    padding: 24px;
}

.auth-container {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
}

/* 卡片样式 */
.auth-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 44px 36px;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border-color);
}

/* 头部 */
.auth-header {
    text-align: left;
    margin-bottom: 32px;
}

.logo {
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(135deg, #4f46e5 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 15px;
}

/* 表单 */
.auth-form {
    margin-top: 24px;
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

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

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: var(--text-primary);
    transition: all 0.2s ease;
    outline: none;
}

.form-group input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

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

/* 验证码区域 */
.input-group {
    display: flex;
    gap: 12px;
}

.input-group input {
    flex: 1;
}

.btn-send-code {
    padding: 0 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-send-code:hover:not(:disabled) {
    background: var(--border-color);
    color: var(--text-primary);
}

.btn-send-code:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 密码切换按钮 */
.toggle-password {
    position: absolute;
    right: 16px;
    top: 38px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 18px;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.toggle-password:hover {
    color: var(--accent-color);
    background: var(--bg-primary);
}

/* Font Awesome 图标样式 */
.toggle-password i {
    font-size: 18px;
    pointer-events: none;
}

/* 表单选项 */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 14px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-secondary);
}

.checkbox-label input {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--accent-color);
}

.forgot-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.forgot-link:hover {
    color: var(--accent-color);
}

/* 主按钮 */
.btn-primary {
    width: 100%;
    padding: 12px;
    background: var(--accent-color);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

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

.btn-primary:active {
    transform: scale(0.98);
}

/* 提示框 */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 14px;
}

.alert-error {
    background: #fef2f2;
    border: 1px solid #fee2e2;
    color: var(--error-color);
}

.alert-success {
    background: #f0fdf4;
    border: 1px solid #dcfce7;
    color: var(--success-color);
}

/* 协议文本 */
.terms-text {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: var(--text-muted);
}

.terms-text a {
    color: var(--accent-color);
    text-decoration: none;
}

.terms-text a:hover {
    text-decoration: underline;
}

/* 底部链接 */
.auth-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

.auth-footer a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* 加载状态 */
.btn-primary.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.btn-primary.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* 响应式 */
@media (max-width: 480px) {
    .auth-card {
        padding: 32px 24px;
    }
    
    .logo {
        font-size: 28px;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .btn-send-code {
        padding: 10px;
    }
    
    .toggle-password {
        top: 38px;
    }
}