/* ===== 企业级登录页面样式 ===== */
/* 基于红鲸品牌设计系统 */

/* ===== 登录页面主容器 ===== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1f2e 0%, #2c2c2c 50%, #1f2937 100%);
    position: relative;
    overflow: hidden;
}

/* 背景装饰元素 */
.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(229, 57, 53, 0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* ===== 登录卡片容器 ===== */
.login-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
    padding: 20px;
}

.login-card {
    background: #FFFFFF;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
}

/* 卡片顶部红鲸品牌装饰条 */
.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

/* ===== 品牌Logo区域 ===== */
.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-brand-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    box-shadow: 0 8px 24px rgba(229, 57, 53, 0.3);
    animation: fadeInDown 0.6s ease-out;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-brand-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-neutral-900);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-brand-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-neutral-600);
    font-weight: var(--font-weight-normal);
}

/* ===== 表单样式 ===== */
.login-form {
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-form .form-label {
    font-weight: var(--font-weight-medium);
    color: var(--color-neutral-800);
    margin-bottom: 8px;
    font-size: var(--font-size-sm);
}

.login-form .form-control {
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: var(--font-size-base);
    transition: var(--transition-base);
    background: var(--input-bg);
    color: var(--input-text);
}

.login-form .form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.1);
    outline: none;
}

.login-form .form-control::placeholder {
    color: var(--input-placeholder);
}

/* ===== 记住我复选框 ===== */
.login-form .form-check {
    margin-bottom: 24px;
}

.login-form .form-check-input {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-neutral-300);
    border-radius: var(--radius-sm);
    margin-top: 2px;
}

.login-form .form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.login-form .form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.1);
    border-color: var(--color-primary);
}

.login-form .form-check-label {
    color: var(--color-neutral-700);
    font-size: var(--font-size-sm);
    margin-left: 8px;
    user-select: none;
}

/* ===== 登录按钮 ===== */
.btn-login {
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
    box-shadow: 0 4px 12px rgba(229, 57, 53, 0.3);
    cursor: pointer;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(229, 57, 53, 0.4);
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

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

.btn-login:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.2);
}

/* ===== 验证错误提示 ===== */
.text-danger {
    font-size: var(--font-size-xs);
    color: var(--color-danger);
    margin-top: 4px;
    display: block;
}

.alert {
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    padding: 12px 16px;
    margin-bottom: 20px;
    border: 1px solid var(--color-danger-light);
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

/* ===== 页脚信息 ===== */
.login-footer {
    text-align: center;
    margin-top: 24px;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

.login-footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 8px;
}

.login-footer-brand i {
    color: var(--color-primary-light);
    font-size: 16px;
}

.login-footer-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-xs);
}

/* ===== 响应式设计 ===== */
@media (max-width: 576px) {
    .login-container {
        padding: 16px;
    }
    
    .login-card {
        padding: 32px 24px;
    }
    
    .login-brand-icon {
        width: 56px;
        height: 56px;
        font-size: 28px;
    }
    
    .login-brand-title {
        font-size: var(--font-size-2xl);
    }
    
    .login-brand-subtitle {
        font-size: var(--font-size-sm);
    }
}

/* ===== 无障碍优化 ===== */
.login-form .form-control:focus,
.login-form .form-check-input:focus,
.btn-login:focus {
    outline: 2px solid transparent;
    outline-offset: 2px;
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .login-card {
        border: 2px solid var(--color-neutral-900);
    }
    
    .login-form .form-control {
        border-width: 2px;
    }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== Toast 通知样式 ===== */
.toast-container {
    z-index: 9999;
}

.toast {
    min-width: 300px;
    max-width: 500px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(10px);
}

.toast.bg-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-light) 100%) !important;
}

.toast.bg-success {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-light) 100%) !important;
}

.toast.bg-warning {
    background: linear-gradient(135deg, var(--color-warning) 0%, var(--color-warning-light) 100%) !important;
}

.toast-body {
    padding: 16px 20px;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    display: flex;
    align-items: center;
}

.toast-body i {
    font-size: 18px;
}

.toast .btn-close {
    padding: 0.75rem;
    opacity: 0.8;
}

.toast .btn-close:hover {
    opacity: 1;
}

/* Toast 动画优化 */
.toast.showing {
    animation: slideInRight 0.3s ease-out;
}

.toast.hide {
    animation: slideOutRight 0.3s ease-in;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}