/* static/css/online/login.css - 科技魔塔主题登录页面样式 */

/* 登录页面容器 */
.login-page-container {
    max-width: 500px;
    margin: 2rem auto;
    padding: 0 1rem;
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* 登录标题 - 科技魔塔风格 */
.login-title {
    color: #ffffff;
    font-size: 2.2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2.5rem;
    text-shadow: 0 0 20px rgba(0, 150, 255, 0.5);
    font-family: 'Orbitron', monospace;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 1rem;
}

.login-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg,
            rgba(0, 150, 255, 0.8),
            rgba(138, 43, 226, 0.8));
    border-radius: 2px;
}

/* 登录卡片 */
.login-card {
    background: linear-gradient(135deg,
            rgba(15, 23, 42, 0.9),
            rgba(30, 41, 59, 0.9));
    border-radius: 12px;
    border: 1px solid rgba(0, 150, 255, 0.4);
    box-shadow: 0 10px 30px rgba(0, 150, 255, 0.15);
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg,
            rgba(0, 150, 255, 0.1),
            rgba(138, 43, 226, 0.1),
            rgba(0, 150, 255, 0.1));
    border-radius: 14px;
    z-index: -1;
    filter: blur(3px);
    opacity: 0.5;
}

/* 登录表单 */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

/* 输入框组 */
.login-input-group {
    position: relative;
}

.login-label {
    display: block;
    color: #a5b4fc;
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 0.6rem;
    font-family: 'Orbitron', monospace;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
}

/* 输入框 - 科技主题 */
.login-input {
    width: 100%;
    padding: 1rem 1.2rem;
    background: linear-gradient(135deg,
            rgba(30, 41, 59, 0.95),
            rgba(51, 65, 85, 0.95));
    border: 1px solid rgba(0, 150, 255, 0.4);
    border-radius: 8px;
    color: #e0e7ff;
    font-size: 1rem;
    font-family: 'Orbitron', monospace;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 150, 255, 0.1);
    outline: none;
}

.login-input:focus {
    border-color: rgba(138, 43, 226, 0.6);
    box-shadow: 0 0 0 2px rgba(138, 43, 226, 0.2),
        0 5px 15px rgba(138, 43, 226, 0.15);
    background: rgba(15, 23, 42, 0.95);
}

.login-input::placeholder {
    color: rgba(165, 180, 252, 0.5);
}

/* 输入框图标 */
.login-input-group::after {
    content: '⟁';
    position: absolute;
    right: 1.2rem;
    top: 2.8rem;
    color: #60a5fa;
    font-size: 1.1rem;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.login-input:focus+.login-label+ ::after {
    opacity: 1;
    animation: pulse 1s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.7;
    }

    50% {
        opacity: 1;
    }
}

/* 提交按钮 - 科技主题 */
.login-submit-btn {
    padding: 1.2rem;
    background: linear-gradient(135deg,
            rgba(0, 150, 255, 0.3),
            rgba(138, 43, 226, 0.2));
    border: 1px solid rgba(0, 150, 255, 0.4);
    border-radius: 8px;
    color: #a5b4fc;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: 'Orbitron', monospace;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    box-shadow: 0 3px 12px rgba(0, 150, 255, 0.2);
}

.login-submit-btn:hover {
    background: linear-gradient(135deg,
            rgba(0, 150, 255, 0.4),
            rgba(138, 43, 226, 0.3));
    color: #ffffff;
    border-color: rgba(138, 43, 226, 0.6);
    transform: translateY(-3px);
    box-shadow: 0 5px 18px rgba(138, 43, 226, 0.25);
}

.login-submit-btn:active {
    transform: translateY(-1px);
}

/* 按钮发光效果 */
.login-submit-btn::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg,
            rgba(0, 150, 255, 0.3),
            rgba(138, 43, 226, 0.3),
            rgba(0, 150, 255, 0.3));
    border-radius: 10px;
    z-index: -1;
    filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.login-submit-btn:hover::before {
    opacity: 0.7;
}

/* 注册提示区域 */
.register-tip {
    margin-top: 2.5rem;
    background: linear-gradient(135deg,
            rgba(30, 41, 59, 0.8),
            rgba(51, 65, 85, 0.8));
    border: 1px solid rgba(0, 150, 255, 0.3);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 150, 255, 0.1);
}

/* 提示标题 */
.tip-header {
    width: 100%;
    padding: 1.2rem 1.5rem;
    background: transparent;
    border: none;
    color: #a5b4fc;
    font-size: 1.05rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: 'Orbitron', monospace;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.tip-header:hover {
    color: #ffffff;
    background: rgba(0, 150, 255, 0.1);
}

/* 箭头图标 */
.tip-arrow {
    width: 16px;
    height: 16px;
    border-right: 2px solid #60a5fa;
    border-bottom: 2px solid #60a5fa;
    transform: rotate(45deg);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.tip-arrow.active {
    transform: rotate(-135deg);
    border-color: #7c87ff;
}

/* 提示内容 */
.tip-content {
    max-height: 0;
    overflow: hidden;
    padding: 0 1.5rem;
    color: #cbd5e1;
    font-size: 0.95rem;
    line-height: 1.6;
    background: rgba(15, 23, 42, 0.6);
    transition: all 0.5s ease;
}

.tip-content.active {
    max-height: 200px;
    padding: 1.2rem 1.5rem;
    border-top: 1px solid rgba(0, 150, 255, 0.2);
}

/* 消息提示 */
.flash-messages {
    margin-bottom: 1.5rem;
}

.flash-message {
    padding: 1rem 1.2rem;
    background: linear-gradient(135deg,
            rgba(0, 200, 255, 0.15),
            rgba(0, 150, 255, 0.1));
    color: #60a5fa;
    border-radius: 8px;
    border-left: 3px solid #3b82f6;
    margin-bottom: 0.8rem;
    font-family: 'Orbitron', monospace;
    position: relative;
    overflow: hidden;
}

.flash-message.error {
    background: linear-gradient(135deg,
            rgba(239, 68, 68, 0.15),
            rgba(220, 38, 38, 0.1));
    color: #f87171;
    border-left-color: #ef4444;
}

.flash-message.success {
    background: linear-gradient(135deg,
            rgba(34, 197, 94, 0.15),
            rgba(21, 128, 61, 0.1));
    color: #4ade80;
    border-left-color: #22c55e;
}

/* 加载动画 */
.login-loading {
    display: none;
    text-align: center;
    margin-top: 1.5rem;
}

.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 150, 255, 0.3);
    border-radius: 50%;
    border-top-color: #60a5fa;
    animation: spin 1s linear infinite;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .login-page-container {
        margin: 1rem auto;
        padding: 0 0.8rem;
    }

    .login-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    .login-card {
        padding: 2rem;
    }

    .login-input {
        padding: 0.9rem 1rem;
    }

    .login-submit-btn {
        padding: 1.1rem;
        font-size: 1.05rem;
    }

    .tip-header {
        padding: 1rem 1.2rem;
        font-size: 1rem;
    }

    .tip-content.active {
        padding: 1rem 1.2rem;
    }
}

@media (max-width: 480px) {
    .login-page-container {
        margin: 0.5rem auto;
        padding: 0 0.5rem;
    }

    .login-title {
        font-size: 1.6rem;
        margin-bottom: 1.5rem;
    }

    .login-card {
        padding: 1.5rem;
    }

    .login-input {
        padding: 0.8rem 0.9rem;
        font-size: 0.95rem;
    }

    .login-submit-btn {
        padding: 1rem;
        font-size: 1rem;
    }

    .tip-header {
        padding: 0.9rem 1rem;
        font-size: 0.95rem;
    }

    .tip-arrow {
        width: 14px;
        height: 14px;
    }

    .tip-content {
        font-size: 0.9rem;
    }

    .tip-content.active {
        padding: 0.9rem 1rem;
    }
}

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

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

.login-card {
    animation: fadeInUp 0.6s ease forwards;
}

.register-tip {
    animation: fadeInUp 0.6s ease 0.2s forwards;
    opacity: 0;
}

/* 输入框验证状态 */
.login-input.valid {
    border-color: rgba(34, 197, 94, 0.6);
    box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.3);
}

.login-input.invalid {
    border-color: rgba(239, 68, 68, 0.6);
    box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.3);
}

/* 密码显示/隐藏按钮 */
.password-toggle {
    position: absolute;
    right: 1rem;
    top: 2.8rem;
    background: none;
    border: none;
    color: #60a5fa;
    cursor: pointer;
    font-size: 1.1rem;
    opacity: 0.7;
    transition: opacity 0.3s ease;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    opacity: 1;
}

/* 链接样式 */
.login-link {
    color: #60a5fa;
    text-decoration: none;
    border-bottom: 1px dashed rgba(96, 165, 250, 0.5);
    transition: all 0.2s ease;
    font-family: 'Orbitron', monospace;
}

.login-link:hover {
    color: #7c87ff;
    border-bottom-color: #7c87ff;
}

/* 表单底部 */
.login-form-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 150, 255, 0.2);
    color: #94a3b8;
    font-size: 0.9rem;
}

/* 键盘焦点样式 */
.login-input:focus-visible,
.login-submit-btn:focus-visible,
.tip-header:focus-visible {
    outline: 2px solid #7c87ff;
    outline-offset: 2px;
}