/* ============================================================
   ToddCRM - 登录页样式
   ============================================================ */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

/* 头部 */
.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
    padding: 40px 30px 30px;
}

.logo-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    margin: 0 auto 15px;
    backdrop-filter: blur(10px);
}

.login-header h1 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 5px;
    letter-spacing: 1px;
}

.login-header p {
    font-size: 13px;
    opacity: 0.85;
}

/* 表单区域 */
#login-form {
    padding: 35px 30px 30px;
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group label svg {
    color: #667eea;
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 13px 16px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    outline: none;
}

.form-group input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

/* 密码显示/隐藏 */
.password-wrapper {
    position: relative;
}

.password-wrapper input {
    padding-right: 48px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    color: #6c757d;
    transition: color 0.3s ease;
}

.toggle-password:hover {
    color: #667eea;
}

/* 错误提示 */
.error-message {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 18px;
    font-size: 14px;
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* 登录按钮 */
.btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.btn-login:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-login:active:not(:disabled) {
    transform: translateY(0);
}

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.spinner-small {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

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

/* 底部 */
.login-footer {
    text-align: center;
    padding: 20px;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
}

.login-footer p {
    font-size: 12px;
    color: #6c757d;
}

/* 响应式 */
@media (max-width: 480px) {
    .login-card {
        border-radius: 0;
        box-shadow: none;
    }

    body {
        padding: 0;
        align-items: flex-start;
    }

    .login-container {
        max-width: 100%;
    }
}