/* ============================================
   萬大發電廠環境教育學習網 - 會員認證頁面樣式
   kun 2025-01-17
   ============================================ */

/* ============================================
   4張輪播圖設定覆蓋
   ============================================ */
.banner-carousel .carousel-slide {
    animation: fadeSlide4 16s infinite;
}

.banner-carousel .carousel-slide:nth-child(1) {
    animation-delay: 0s;
}

.banner-carousel .carousel-slide:nth-child(2) {
    animation-delay: 4s;
}

.banner-carousel .carousel-slide:nth-child(3) {
    animation-delay: 8s;
}

.banner-carousel .carousel-slide:nth-child(4) {
    animation-delay: 12s;
}

@keyframes fadeSlide4 {
    0% {
        opacity: 0;
    }

    5% {
        opacity: 1;
    }

    25% {
        opacity: 1;
    }

    30% {
        opacity: 0;
    }

    100% {
        opacity: 0;
    }
}

/* ============================================
   灰色調 Banner
   ============================================ */
.banner-gray .banner-carousel .carousel-slide img {
    filter: grayscale(100%) opacity(0.7);
}

/* ============================================
   AUTH SECTION - 認證區塊
   ============================================ */
.auth-section {
    padding: var(--spacing-6xl) var(--container-padding-md);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.auth-container {
    max-width: 550px;
    width: 100%;
}

/* ============================================
   AUTH HEADER - 標題區
   ============================================ */
.auth-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-4xl);
}

.auth-icon {
    width: 48px;
    height: 48px;
}

.auth-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

/* ============================================
   AUTH FORM - 表單
   ============================================ */
.auth-form {
    width: 100%;
}

/* 登入表單 - 全寬輸入 */
.login-form .form-group {
    margin-bottom: var(--spacing-3xl);
}

.login-form .form-label {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.login-form .form-input {
    width: 100%;
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-base);
    color: var(--color-text);
    border: none;
    border-bottom: 1px solid var(--color-border);
    background: transparent;
    outline: none;
    transition: border-color var(--transition-fast);
}

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

.login-form .form-input:focus {
    border-bottom-color: var(--color-primary);
}

/* 註冊表單 - 左右排列 */
.register-form .form-group-inline {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.register-form .form-label {
    flex: 0 0 140px;
    font-size: var(--font-size-lg);
    color: var(--color-text);
    text-align: right;
    padding-right: var(--spacing-md);
}

.register-form .form-label .required {
    color: #e74c3c;
    margin-right: 2px;
}

.register-form .form-input {
    flex: 1;
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-base);
    color: var(--color-text);
    border: none;
    border-bottom: 1px solid var(--color-border);
    background: transparent;
    outline: none;
    transition: border-color var(--transition-fast);
}

.register-form .form-input:focus {
    border-bottom-color: var(--color-primary);
}

/* Checkbox 樣式 */
.form-checkbox {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding-left: 140px;
    margin-bottom: var(--spacing-4xl);
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: var(--spacing-sm);
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-checkbox label {
    font-size: var(--font-size-base);
    color: var(--color-text);
}

.form-checkbox label a {
    color: var(--color-text);
    text-decoration: underline;
}

.form-checkbox label a:hover {
    color: var(--color-primary);
}

/* ============================================
   FORM ACTIONS - 按鈕區
   ============================================ */
.form-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.form-actions-center {
    justify-content: center;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-3xl);
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
}

.btn-primary span {
    font-weight: var(--font-weight-bold);
}

.btn-submit {
    min-width: 150px;
}

/* ============================================
   FORM LINKS - 連結區
   ============================================ */
.form-links {
    display: flex;
    justify-content: center;
}

.forgot-password {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-base);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.forgot-password img {
    width: 18px;
    height: 18px;
}

.forgot-password span {
    text-decoration: underline;
}

.forgot-password:hover {
    color: var(--color-primary);
}

/* ============================================
   TERMS SECTION - 條款區塊
   ============================================ */
.terms-section {
    padding: var(--spacing-6xl) var(--container-padding-md);
    display: flex;
    justify-content: center;
}

.terms-container {
    max-width: 600px;
    width: 100%;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-4xl);
    border-right: 4px solid var(--color-primary);
}

.terms-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.terms-content {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    line-height: var(--line-height-loose);
}

.terms-content h3 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.terms-content p {
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

/* ============================================
   SUCCESS SECTION - 成功區塊
   ============================================ */
.success-section {
    padding: var(--spacing-6xl) var(--container-padding-md);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

.success-container {
    text-align: center;
}

.success-icon {
    margin-bottom: var(--spacing-2xl);
}

.success-icon img {
    width: 80px;
    height: 80px;
    margin: 0 auto;
}

.success-message {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet */
@media (max-width: 768px) {
    .auth-section {
        padding: var(--spacing-4xl) var(--container-padding-sm);
    }

    .auth-header {
        margin-bottom: var(--spacing-3xl);
    }

    .auth-icon {
        width: 40px;
        height: 40px;
    }

    .auth-title {
        font-size: var(--font-size-2xl);
    }

    /* 註冊表單響應式 */
    .register-form .form-group-inline {
        flex-direction: column;
        align-items: flex-start;
    }

    .register-form .form-label {
        flex: none;
        text-align: left;
        padding-right: 0;
        margin-bottom: var(--spacing-sm);
    }

    .register-form .form-input {
        width: 100%;
    }

    .form-checkbox {
        padding-left: 0;
    }

    .form-actions {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .btn-primary {
        width: 100%;
    }

    /* 條款區塊響應式 */
    .terms-section {
        padding: var(--spacing-4xl) var(--container-padding-sm);
    }

    .terms-container {
        padding: var(--spacing-2xl);
    }

    .terms-title {
        font-size: var(--font-size-xl);
    }

    /* 成功區塊響應式 */
    .success-section {
        padding: var(--spacing-4xl) var(--container-padding-sm);
    }

    .success-icon img {
        width: 60px;
        height: 60px;
    }

    .success-message {
        font-size: var(--font-size-2xl);
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .auth-title {
        font-size: var(--font-size-xl);
    }

    .login-form .form-group {
        margin-bottom: var(--spacing-2xl);
    }

    .terms-container {
        border-right: none;
        border-bottom: 4px solid var(--color-primary);
    }

    .success-message {
        font-size: var(--font-size-xl);
    }
}