:root {
    --background-color: #f8f8f8;
    --content-background-color: #ffffff;
    --text-color: #333333;
    --heading-color: #1a1a1a;
    --primary: #5d7a75;
    --primary-hover: #4a615d;
    --border-color: #e0e0e0;
    --muted-color: #757575;
    --code-background-color: #f4f4f4;
    --border-radius: 4px;
    --font-serif: 'Playfair Display', serif;
    --font-sans-serif: 'Lato', serif;
    /* Header Variables */
    --header-bg-light: rgba(255, 255, 255, 0.7);
    --header-bg-dark: rgba(45, 55, 72, 0.7);
    --header-border-light: rgba(224, 224, 224, 0.8);
    --header-border-dark: rgba(74, 85, 104, 0.8);
}

[data-theme="dark"] {
    --background-color: #1a202c;
    --content-background-color: #2d3748;
    --text-color: #e2e8f0;
    --heading-color: #ffffff;
    --primary: #81a19b;
    --primary-hover: #98b9b3;
    --border-color: #4a5568;
    --muted-color: #a0aec0;
    --code-background-color: #1e2633;
}

body {
    background-color: var(--background-color);
    font-family: var(--font-sans-serif);
    color: var(--text-color);
    line-height: 1.8;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body:not(.home) {
    padding-top: 80px; 
}

main.container {
    max-width: 1400px;
    margin: 2rem auto;
    background-color: var(--content-background-color);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius);
}

footer.container {
    background: none;
    border: none;
    box-shadow: none;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

body.home main.container {
    max-width: 100%;
    padding: 0;
    border: none;
    box-shadow: none;
    background-color: transparent;
    margin: 0;
}

body.home footer.container {
    margin-top: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    color: var(--heading-color);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* --- Header Styles --- */

#site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    background-color: var(--header-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--header-border-light);
    transition: background-color 0.3s ease-in-out;
}

[data-theme="dark"] #site-header {
    background-color: var(--header-bg-dark);
    border-bottom: 1px solid var(--header-border-dark);
}

body.home #site-header {
    position: absolute;
    background-color: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom-color: transparent;
}

body.home #site-header.scrolled {
    position: fixed;
    background-color: var(--header-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--header-border-light);
}
[data-theme="dark"] body.home #site-header.scrolled {
    background-color: var(--header-bg-dark);
    border-bottom: 1px solid var(--header-border-dark);
}

#site-header .container {
    padding: 0 2.5rem;
    max-width: 100%;
    background: none;
    border: none;
    box-shadow: none;
    margin: 0 auto;
}

#site-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#site-header nav ul {
    margin-bottom: 0;
}

.header-logo {
    height: 45px;
    width: auto;
    vertical-align: middle;
    border-radius: 50%;
    transition: transform 0.2s ease-in-out;
}

.header-logo:hover {
    transform: scale(1.1);
}

.nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: color 0.2s ease-in-out, background-color 0.2s ease-in-out;
}

body.home #site-header:not(.scrolled) .nav-links a,
body.home #site-header:not(.scrolled) #mobile-menu-button {
    color: #ffffff;
}

.nav-links a:hover {
    background-color: var(--primary);
    color: var(--content-background-color);
    text-decoration: none;
}
[data-theme="dark"] .nav-links a:hover {
    color: #1a202c;
}

.nav-links a.active {
    background-color: var(--primary);
    color: var(--content-background-color);
}
[data-theme="dark"] .nav-links a.active {
    color: #1a202c;
}

body.home #site-header:not(.scrolled) .nav-links a.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}


/* --- Homepage Hero Banner --- */

.hero-banner {
    position: relative;
    width: 100%;
    height: 100vh;
    background-image: url('/img/cat-banner.webp');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    overflow: hidden;
}

.hero-banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 1rem;
}

.hero-content h1 {
    font-family: var(--font-serif);
    font-size: 4.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.1;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero-content .tagline {
    font-family: var(--font-sans-serif);
    font-size: 1.5rem;
    font-style: italic;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 0;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

/* --- Social Links Section --- */

.social-section {
    padding: 3rem 0;
    background-color: var(--background-color);
}

.social-section .container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1rem;
}

.social-icons-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
}

.social-icon {
    color: var(--muted-color);
    text-decoration: none;
    transition: color 0.2s ease-in-out, transform 0.2s ease-in-out;
}

.social-icon:hover {
    color: var(--primary);
    transform: scale(1.1);
    text-decoration: none;
}

/* --- Latest Articles & Blog List Section (Grid Design) --- */

.latest-articles-section {
    padding: 4rem 0;
    background-color: var(--background-color);
}

.latest-articles-section .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.title-hr {
    width: 100px;
    height: 2px;
    background-color: var(--primary);
    border: none;
    margin: 0 auto 3rem auto;
}

.posts-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.post-link-wrapper {
    text-decoration: none;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
}

.post-link-wrapper:hover {
    text-decoration: none;
}

.posts-list .post-item {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    background-color: var(--content-background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    overflow: hidden;
}

.post-link-wrapper:hover .post-item {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.post-item-image-container {
    width: 100%;
    height: 200px;
    flex-shrink: 0;
}

.post-item-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.post-link-wrapper:hover .post-item-image {
    transform: scale(1.05);
}

.post-item-text {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.post-item-text h4 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    color: var(--heading-color);
    transition: color 0.2s ease;
}

.post-link-wrapper:hover .post-item-text h4 {
    color: var(--primary);
}

.post-meta {
    color: var(--muted-color);
    margin-top: 0;
    font-size: 0.9em;
}

.view-all-posts {
    text-align: center;
    margin-top: 3rem;
}

.view-all-posts .button.outline {
    border-color: var(--primary);
    color: var(--primary);
    background: none;
    padding: 0.8em 1.5em;
    font-size: 1.1em;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all 0.2s ease-in-out;
}

.view-all-posts .button.outline:hover {
    background-color: var(--primary);
    color: var(--content-background-color);
}


/* --- Projects Page Styles --- */

.projects-wrapper .page-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem auto;
}

.projects-wrapper .page-header h1 {
    margin-bottom: 0.5rem;
}

.projects-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    background-color: var(--content-background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    text-decoration: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.04);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.08);
    text-decoration: none;
}

.project-card-content {
    padding: 1.5rem;
    flex-grow: 1;
}

.project-card-content h4 {
    color: var(--heading-color);
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.project-card-content p {
    margin-bottom: 0;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--muted-color);
}

.project-stack {
    padding: 1rem 1.5rem;
    background-color: var(--background-color);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.stack-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
    font-family: 'JetBrains Mono', monospace;
    background-color: var(--background-color);
    color: var(--primary);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    font-weight: 500;
}

/* --- About Page --- */

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    margin-top: 2rem;
}

.about-text-column .page-header {
    text-align: left;
    margin-bottom: 2rem;
}

.about-text-column .page-content h3 {
    margin-top: 2rem;
    color: var(--primary);
}

.about-terminal-column {
    position: sticky;
    top: 100px;
}

.terminal-prompt-intro {
    text-align: center;
    color: var(--muted-color);
    margin-top: 1.5rem;
}
.terminal-prompt-intro p {
    margin: 0;
    font-family: var(--font-sans-serif);
    font-size: 1rem;
}
.terminal-prompt-intro code {
    background-color: var(--code-background-color);
    color: var(--primary);
    padding: 0.2rem 0.5rem;
    border-radius: var(--border-radius);
    font-family: 'JetBrains Mono', monospace;
    border: 1px solid var(--border-color);
}


.terminal-window {
    width: 100%;
    height: 70vh;
    max-height: 650px;
    margin: 0;
    background-color: var(--code-background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

[data-theme="dark"] .terminal-window {
    background-color: #1a202c;
}

.terminal-header {
    background-color: var(--background-color);
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.terminal-buttons {
    display: flex;
    gap: 0.5rem;
}
.terminal-dot {
    display: block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.terminal-title {
    flex-grow: 1;
    text-align: center;
    font-family: 'JetBrains Mono', monospace;
    color: var(--muted-color);
    font-size: 0.9rem;
}

.terminal-body { 
    flex-grow: 1;
    overflow-y: auto;
    padding: 1.5rem; 
    font-family: 'JetBrains Mono', monospace; 
}

.terminal-line {
    display: flex;
    align-items: flex-start;
}
.terminal-prompt {
    margin-right: 0.5rem;
    white-space: nowrap;
}
.terminal-user {
    color: #81a19b;
}
.terminal-colon {
    color: var(--text-color);
}
.terminal-tilde {
    color: #5d7a75;
}

.terminal-input-line {
    display: flex;
    align-items: center;
    flex-wrap: nowrap !important;
}

.terminal-input {
    flex-grow: 1;
    background: none !important;
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
    height: auto !important;
    color: var(--text-color);
    font-family: 'JetBrains Mono', monospace;
    font-size: 1em;
    caret-color: var(--primary);
}
.terminal-input:focus {
    outline: none !important;
}

.output-line {
    margin-bottom: 1rem;
    white-space: pre-wrap;
}

.ascii-art {
    font-family: 'JetBrains Mono', monospace;
    color: var(--primary);
    line-height: 1.15;
    font-size: clamp(0.4em, 1.7vh, 0.9em);
    margin-bottom: 1rem;
    white-space: pre;
    overflow: hidden;
}

.command-executed {
    color: var(--text-color);
    white-space: pre-wrap;
    word-break: break-all;
}
.command-list {
    color: var(--primary);
}
.directory {
    color: var(--primary);
    font-weight: bold;
}

.about-output {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    font-family: 'Lora', serif;
    font-size: 1rem;
    line-height: 1.8;
}

.about-avatar-cli {
    flex-shrink: 0;
    width: 90px;
    height: 90px;
}

.about-avatar-cli img {
    width: 100%;
    border-radius: var(--border-radius);
}

.about-text-cli {
    flex-grow: 1;
}

.stack-list-cli {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}

.stack-list-cli li {
    font-size: 1rem;
}

.status-ok {
    color: #61c554;
    margin-right: 0.5rem;
}
.skill-name {
    color: var(--text-color);
}

/* --- Other Styles --- */

#theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    font-size: 1.25rem;
    line-height: 1;
    vertical-align: middle;
}
.moon {
    display: none;
}
[data-theme="dark"] .sun {
    display: none;
}
[data-theme="dark"] .moon {
    display: inline;
}

/* --- Responsive Design --- */
@media (max-width: 900px) {
    main.container {
        padding: 1.5rem 1rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-terminal-column {
        display: none;
    }
}


/* --- Mobile Navigation Styles --- */

.mobile-only {
    display: none;
}

#mobile-menu-panel {
    display: none;
    background-color: var(--content-background-color);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    border-bottom: 1px solid var(--border-color);
}

#mobile-menu-panel.is-open {
    display: block;
}

#mobile-menu-panel ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
#mobile-menu-panel a {
    display: block;
    padding: 1rem 1.5rem;
    text-decoration: none;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
}
#mobile-menu-panel li:last-child a {
    border-bottom: none;
}
#mobile-menu-button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-color);
}

@media (max-width: 768px) {
    .desktop-only {
        display: none;
    }
    .mobile-only {
        display: block;
    }
    #site-header .container {
        padding: 0 1rem;
    }

    body.home #site-header,
    body:not(.home) #site-header {
        position: fixed;
        background-color: var(--header-bg-light);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--header-border-light);
    }
    [data-theme="dark"] body.home #site-header,
    [data-theme="dark"] body:not(.home) #site-header {
        background-color: var(--header-bg-dark);
        border-bottom: 1px solid var(--header-border-dark);
    }
}