/* 登录页面样式 */

/* 主体布局 */
.login-main {
    min-height: calc(100vh - 80px);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.login-container {
    position: relative;
    width: 100%;
    max-width: 450px;
    z-index: 10;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 3rem 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 登录头部 */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.login-header h1 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.login-header p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* 表单样式 */
.login-form {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-group label i {
    color: var(--primary-color);
    width: 16px;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #fff;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(76, 175, 80, 0.2);
}

.form-group input::placeholder {
    color: #adb5bd;
}

/* 密码输入框 */
.password-input {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.password-toggle:hover {
    background: rgba(76, 175, 80, 0.1);
    color: var(--primary-color);
}

/* 表单选项 */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-dark);
}

.checkbox-container input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #e1e5e9;
    border-radius: 4px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-container input:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-container input:checked + .checkmark::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 10px;
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.forgot-password:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* 登录按钮 */
.login-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-color), #45a049);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(76, 175, 80, 0.4);
}

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

.btn-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.login-btn.loading .btn-text {
    opacity: 0;
}

.login-btn.loading .btn-loader {
    display: block !important;
}

/* 分隔线 */
.divider {
    text-align: center;
    margin: 2rem 0;
    position: relative;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #e1e5e9;
}

.divider span {
    background: rgba(255, 255, 255, 0.95);
    padding: 0 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    position: relative;
}

/* 社交登录 */
.social-login {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem;
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    background: white;
    color: var(--text-dark);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.github-btn:hover {
    border-color: #24292e;
    color: #24292e;
}

.google-btn:hover {
    border-color: #4285f4;
    color: #4285f4;
}

.social-btn i {
    font-size: 1.2rem;
}

/* 登录页脚 */
.login-footer {
    text-align: center;
}

.login-footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.login-footer a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* 背景装饰 */
.login-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 100px;
    height: 100px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 20%;
    right: 15%;
    animation-delay: 2s;
}

.shape-3 {
    width: 80px;
    height: 80px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 20px;
    width: 90%;
    max-width: 400px;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-header {
    padding: 1.5rem 2rem 1rem;
    border-bottom: 1px solid #e1e5e9;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--text-dark);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: rgba(255, 0, 0, 0.1);
    color: #dc3545;
}

.modal-body {
    padding: 2rem;
}

.reset-btn {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.reset-btn:hover {
    background: #45a049;
    transform: translateY(-2px);
}

/* 错误消息 */
.error-message {
    color: #dc3545;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    display: block;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Toast 消息 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(0);
}

.toast-content {
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 4px solid var(--primary-color);
}

.toast.success .toast-content {
    border-left-color: #28a745;
}

.toast.error .toast-content {
    border-left-color: #dc3545;
}

.toast.warning .toast-content {
    border-left-color: var(--accent-color);
}

.toast-icon {
    font-size: 1.2rem;
}

.toast.success .toast-icon {
    color: #28a745;
}

.toast.error .toast-icon {
    color: #dc3545;
}

.toast.warning .toast-icon {
    color: var(--accent-color);
}

.toast-message {
    color: var(--text-dark);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .login-main {
        padding: 1rem;
        min-height: calc(100vh - 60px);
    }

    .login-card {
        padding: 2rem 1.5rem;
        border-radius: 16px;
    }

    .login-header h1 {
        font-size: 1.75rem;
    }

    .login-icon {
        font-size: 3rem;
    }

    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .social-login {
        gap: 0.75rem;
    }

    .toast {
        right: 10px;
        left: 10px;
        transform: translateY(-100px);
    }

    .toast.show {
        transform: translateY(0);
    }

    .modal-content {
        margin: 1rem;
        width: calc(100% - 2rem);
    }

    .modal-body {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem 1rem;
    }

    .form-group input {
        padding: 0.875rem;
        font-size: 0.9rem;
    }

    .login-btn {
        padding: 0.875rem;
        font-size: 1rem;
    }

    .social-btn {
        padding: 0.875rem;
        font-size: 0.9rem;
    }
}