/* 全局樣式 */
body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
}

/* 導航欄樣式 */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.navbar-brand {
    font-weight: bold;
    color: #007bff;
}

.nav-link {
    transition: color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: #007bff;
}

/* 主要內容區域 */
main {
    min-height: calc(100vh - 140px);
    padding: 2rem 0;
}

/* 標題樣式 */
h1, h2, h3 {
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    color: #007bff;
}

h2 {
    font-size: 2rem;
    color: #0056b3;
}

h3 {
    font-size: 1.5rem;
    color: #004085;
}

/* 響應式調整 */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    h2 {
        font-size: 1.75rem;
    }
    h3 {
        font-size: 1.25rem;
    }
}


/* 按鈕樣式 */
.btn {
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
}

.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

.btn-secondary {
    background-color: #6c757d;
    border-color: #6c757d;
}

.btn-secondary:hover {
    background-color: #545b62;
    border-color: #545b62;
}

/* 頁腳樣式 */
footer {
    background-color: #f8f9fa;
    padding: 1rem 0;
    text-align: center;
    box-shadow: 0 -2px 4px rgba(0,0,0,.1);
}

/* 模態框樣式 */
.modal-content {
    border-radius: 10px;
}

.modal-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
}

.modal-title {
    color: #007bff;
}

.modal-body img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    margin-bottom: 1rem;
}

/* 額外的實用類 */
.text-primary {
    color: #007bff;
}

.bg-light {
    background-color: #f8f9fa;
}

.mt-5 {
    margin-top: 3rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.py-3 {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

/* 博客網格樣式 */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.blog-item {
    background-color: #fff;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1));
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.blog-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.blog-item img {
    border-radius: 5px;
    margin-bottom: 1rem;
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.blog-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.blog-item p {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1rem;
}



/* Resume Page Specific Styles */
.profile-header {
    text-align: center;
    margin-bottom: 2rem;
}

.profile-header img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid #007bff;
    margin-bottom: 1rem;
}

.profile-header h1 {
    font-size: 2.8rem;
    color: #333;
    margin-bottom: 0.5rem;
}

.profile-header p {
    font-size: 1.2rem;
    color: #555;
}

.section-title {
    border-bottom: 2px solid #007bff;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    color: #007bff;
}

.experience-item, .education-item, .skill-item {
    margin-bottom: 2rem;
    padding-left: 1.5rem;
    border-left: 3px solid #eee;
}

.experience-item h3, .education-item h3 {
    font-size: 1.6rem;
    color: #0056b3;
    margin-bottom: 0.5rem;
}

.experience-item p, .education-item p {
    margin-bottom: 0.3rem;
}

.experience-item ul, .education-item ul {
    list-style-type: disc;
    padding-left: 20px;
}

.experience-item ul li, .education-item ul li {
    margin-bottom: 0.5rem;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-badge {
    background-color: #007bff;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Timeline for resume */
.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10px;
    width: 3px;
    height: 100%;
    background: #007bff;
}

.timeline-item {
    margin-bottom: 30px;
    position: relative;
    padding-left: 40px;
}

.timeline-icon {
    width: 20px;
    height: 20px;
    background: #007bff;
    border-radius: 50%;
    position: absolute;
    left: 0;
    top: 5px;
    z-index: 1;
}

.timeline-content {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1));
}

.timeline-content h2 {
    font-size: 1.4rem;
    color: #0056b3;
    margin-top: 0;
    margin-bottom: 10px;
}

.timeline-content h3 {
    font-size: 1.2rem;
    color: #004085;
    margin-bottom: 5px;
}

.timeline-content p {
    font-size: 0.95rem;
    line-height: 1.5;
}

.timeline-content ul {
    list-style-type: disc;
    padding-left: 20px;
    margin-top: 10px;
}

.timeline-content ul li {
    margin-bottom: 5px;
}

/* Adjustments for index.html profile section */
.profile-section {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

.profile-section img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid #007bff;
}

.profile-section .text-content h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.profile-section .text-content p {
    font-size: 1.2rem;
    color: #555;
}

.social-links a {
    margin-right: 10px;
}

@media (max-width: 768px) {
    .profile-section {
        flex-direction: column;
        text-align: center;
    }

    .profile-section img {
        margin-bottom: 1.5rem;
    }

    .profile-section .text-content h1 {
        font-size: 2.5rem;
    }

    .profile-section .text-content p {
        font-size: 1rem;
    }
}

/* Tutorial Page Specific Styles */
.tutorial-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.5rem auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1));
}
.tutorial-content figure {
    margin: 1.5rem 0;
    text-align: center;
}
.tutorial-content figure img {
    margin: 0 auto;
}
.tutorial-content hr {
    margin: 2rem 0;
    border-top: 2px solid #eee;
}
.highlight-red {
    background-color: #ffe0e0;
    color: #d9534f;
    padding: 0.2em 0.4em;
    border-radius: 3px;
}
.alert-custom {
    background-color: #fff3cd;
    border-color: #ffeeba;
    color: #856404;
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 0.25rem;
}

/* === Dark Theme & Professional Styles === */



/* --- Index Page --- */

.profile-img {

    width: 180px;

    height: 180px;

    border-radius: 50%;

    object-fit: cover;

    border: 4px solid var(--bs-primary));

    box-shadow: 0 0 20px rgba(var(--bs-primary-rgb), 0.3));

}



.section-title-dark {

    text-align: center;

    font-weight: bold;

    margin-bottom: 2.5rem;

    color: var(--bs-body-color));

    position: relative;

    padding-bottom: 10px;

}



.section-title-dark::after {

    content: '';

    position: absolute;

    bottom: 0;

    left: 50%;

    transform: translateX(-50%);

    width: 60px;

    height: 3px;

    background-color: var(--bs-primary));

}



[data-bs-theme="dark"] .card {

    transition: all 0.3s ease;

    border: 1px solid var(--bs-border-color));

}



[data-bs-theme="dark"] .card:hover {

    transform: translateY(-5px);

    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2));

    border-color: var(--bs-primary));

}



[data-bs-theme="dark"] .list-group-item {

    border-color: var(--bs-border-color-translucent) !important;

}



[data-bs-theme="dark"] .blockquote {

    font-size: 1.1rem;

    color: var(--bs-secondary-color));

}



[data-bs-theme="dark"] .blockquote p::before {

    content: '“';

    font-size: 2rem;

    color: var(--bs-primary));

    margin-right: 5px;

    vertical-align: middle;

}



[data-bs-theme="dark"] .blockquote p::after {

    content: '”';

    font-size: 2rem;

    color: var(--bs-primary));

    margin-left: 5px;

    vertical-align: middle;

}



#featured-content .card-title {

    color: var(--bs-primary));

}



#featured-content .card-text {

    color: var(--bs-secondary-color));

}



#featured-content .list-group-item {

    padding: 0.75rem 0.5rem;

    font-size: 0.9rem;

}



#featured-content .list-group-item:hover {

    background-color: rgba(var(--bs-primary-rgb), 0.1)) !important;

}



.back-to-top-btn {

    position: fixed;

    right: 20px;

    top: 50%; /* Vertically center */

    transform: translateY(-50%); /* Adjust for exact centering */

    background-color: #b87333; /* Use a color that fits the cyberpunk theme */

    color: #e5e5e5;

    border-radius: 50%;

    width: 50px;

    height: 50px;

    display: flex;

    justify-content: center;

    align-items: center;

    font-size: 1.5rem;

    text-decoration: none;

    box-shadow: 0 2px 5px rgba(0,0,0,0.2));

    z-index: 1000; /* Ensure it's above other content */

    transition: background-color 0.3s, box-shadow 0.3s;

}



.back-to-top-btn:hover {

    background-color: #ff8c00; /* Brighter amber on hover */

    box-shadow: 0 0 12px rgba(255, 140, 0, 0.6));

}