/* CRAM Platform - Login Page Styles */

body {
    margin: 0;
    padding: 0;
    height: 100vh;
    overflow: hidden;
}

.login-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 100vh;
}

/* 左側品牌區 */
.login-brand {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.login-brand::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.brand-content {
    position: relative;
    z-index: 1;
    color: white;
    text-align: center;
    max-width: 500px;
}

.back-home {
    position: absolute;
    top: var(--spacing-xl);
    left: var(--spacing-xl);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 700;
    font-size: var(--text-base);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-sm);
    z-index: 10;
}

.back-home:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateX(-3px);
    box-shadow: var(--shadow-md);
}

.brand-logo {
    margin-bottom: var(--spacing-2xl);
}

.logo-circle {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    animation: pulse 2s ease-in-out infinite;
}

.logo-circle img {
    max-width: 160px;
    max-height: 120px;
    width: auto;
    height: auto;
    display: block;
}

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

.brand-logo h1 {
    font-size: var(--text-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.brand-logo p {
    font-size: var(--text-lg);
    opacity: 0.9;
    line-height: 1.8;
}

.brand-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.feature-icon {
    width: 32px;
    height: 32px;
    background: white;
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.feature-text {
    font-size: var(--text-base);
    font-weight: 500;
}

/* 右側表單區 */
.login-form-container {
    background: white;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-2xl);
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 100vh;
}

.login-form-wrapper {
    width: 100%;
    max-width: 480px;
    background: #ffffff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: calc(var(--spacing-2xl) + 8px) var(--spacing-xl) var(--spacing-xl);
    overflow: visible;
    position: relative;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    /* 當畫面高度較短時，確保頂部可見 */
    flex-shrink: 0;
}

.form-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    margin-bottom: var(--spacing-sm);
    text-align: center;
    line-height: 1.5;
    padding: 12px 0;
    display: block;
    overflow: visible;
    position: relative;
    /* 確保字體不會被裁切 */
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

.form-subtitle {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

/* 身份選擇器 */
.role-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.role-btn {
    padding: var(--spacing-lg);
    border: 2px solid var(--gray-200);
    background: white;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.role-btn:hover {
    border-color: var(--primary-color);
    background: var(--gray-50);
}

.role-btn.active {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #f0fdf4 0%, #d1fae5 100%);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.role-icon {
    font-size: 32px;
    margin-bottom: var(--spacing-sm);
}

.role-name {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
}

/* 登入表單 */
.login-form {
    margin-bottom: var(--spacing-xl);
}

.login-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.login-form label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: var(--text-sm);
}

.password-input-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    font-size: 18px;
    opacity: 0.6;
    transition: var(--transition);
}

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

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 600;
    transition: var(--transition);
}

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

/* 測試帳號 */
.test-accounts {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.test-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.test-account-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.test-account-item {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

.test-account-item strong {
    color: var(--text-primary);
    font-family: inherit;
}

/* 註冊連結 */
.register-link {
    text-align: center;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.register-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.register-link a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* IP提示 */
.ip-notice {
    text-align: center;
    color: var(--text-light);
    font-size: var(--text-xs);
}

/* 響應式設計 */
@media (max-width: 1024px) {
    .login-container {
        grid-template-columns: 1fr;
    }
    
    .login-brand {
        display: none;
    }
    
    /* 移動端在表單上方顯示返回按鈕 */
    .login-form-container {
        padding: var(--spacing-lg);
        align-items: flex-start;
        padding-top: calc(var(--spacing-xl) + 50px);
        position: relative;
    }
    
    .login-form-wrapper {
        margin-top: 0;
    }
    
    .back-home {
        top: var(--spacing-lg);
        left: var(--spacing-lg);
        padding: 8px 16px;
        font-size: var(--text-sm);
    }
}

@media (max-width: 480px) {
    .role-selector {
        grid-template-columns: 1fr;
    }
    
    .form-title {
        font-size: var(--text-2xl);
        line-height: 1.4;
        padding: 6px 0;
    }
    
    .login-form-container {
        padding: var(--spacing-md);
        padding-top: var(--spacing-lg);
    }
    
    .login-form-wrapper {
        max-width: 100%;
        padding-top: var(--spacing-lg);
        margin-top: 0;
        margin-bottom: var(--spacing-md);
    }
}

/* 載入動畫 */
.login-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}