@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    /* Colors - NEW PALETTE: #08D9D6, #252A34, #FF2E63, #EAEAEA */
    --primary-bg: #252A34; /* Dark Blue-Gray - Main body background */
    --secondary-bg: #303642; /* Slightly lighter dark blue-gray - Main panels (sidebar, main-content block) */
    --card-bg: #3B424D; /* Even lighter dark blue-gray - Cards within panels */
    --border-color: #4A515E; /* Subtle border color */
    --text-primary: #EAEAEA; /* Very Light Gray - Main text color */
    --text-secondary: #CFCFCF; /* Muted Light Gray - Secondary text color */
    --accent-primary: #08D9D6; /* Bright Cyan/Turquoise - Main highlight, buttons, titles */
    --accent-secondary: #FF2E63; /* Vibrant Pink/Red - Secondary accent, hover states, errors */
    --error-color: #FF2E63; /* Vibrant Pink/Red - Error messages */
    --overlay-color: rgba(37, 42, 52, 0.9); /* Derived from primary-bg with opacity */

    /* Fonts */
    --font-family-poppins: 'Poppins', sans-serif;
    --font-size-xl: 2.25rem; /* 36px */
    --font-size-lg: 1.5rem; /* 24px */
    --font-size-md: 1.25rem; /* 20px */
    --font-size-base: 1rem; /* 16px */
    --font-size-sm: 0.875rem; /* 14px */
    --font-size-xs: 0.75rem; /* 12px */

    /* Font Weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Spacing */
    --spacing-xs: 0.5rem; /* 8px */
    --spacing-sm: 1rem; /* 16px */
    --spacing-md: 1.5rem; /* 24px */
    --spacing-lg: 2rem; /* 32px */
    --spacing-xl: 3rem; /* 48px */

    /* Borders & Radius */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
    --border-thickness: 1px;

    /* Shadows */
    --shadow-sm: 0 4px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.4);

    /* Transitions */
    --transition-ease: 0.3s ease;
}

/* Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-family: var(--font-family-poppins);
    scroll-behavior: smooth;
    min-height: 100vh; /* Ensure html is at least full viewport height */
}

body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden; /* Prevent horizontal scroll */
    min-height: 100vh; /* Ensure body is at least full viewport height */
}

a {
    text-decoration: none;
    color: inherit;
}

li { list-style: none; }

img, ion-icon, button, input, textarea { display: block; }

button {
    font: inherit;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    color: var(--text-primary);
}

input, textarea {
    width: 100%;
    background: none;
    font: inherit;
    color: var(--text-primary);
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    outline: none;
    transition: border-color var(--transition-ease);
}

input:focus, textarea:focus {
    border-color: var(--accent-primary);
}

input:focus:invalid, textarea:focus:invalid {
    border-color: var(--error-color);
}

::selection {
    background: var(--accent-primary);
    color: var(--primary-bg); /* Text on selection will be dark */
}

/* Utility Classes */
.h2, .h3, .h4, .h5 {
    color: var(--text-primary);
    text-transform: capitalize;
    font-weight: var(--font-semibold);
}

.h2 { font-size: var(--font-size-lg); }
.h3 { font-size: var(--font-size-md); }
.h4 { font-size: var(--font-size-base); }
.h5 { font-size: var(--font-size-sm); }

.article-title {
    position: relative;
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--accent-primary); /* Highlight main titles */
}

.article-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--accent-primary);
    border-radius: var(--border-radius-sm);
}

.btn {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    text-transform: capitalize;
    transition: background-color var(--transition-ease), color var(--transition-ease);
}

.primary-btn {
    background-color: var(--accent-primary);
    color: var(--primary-bg);
    box-shadow: var(--shadow-sm);
}

.primary-btn:hover {
    background-color: var(--accent-secondary);
}

.text-btn {
    color: var(--accent-primary);
    padding: 0;
}

.text-btn:hover {
    color: var(--accent-secondary);
}

.icon-box {
    background-color: var(--card-bg); /* Changed to card-bg for consistency */
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: var(--font-size-md);
    color: var(--accent-primary);
    box-shadow: var(--shadow-sm);
    border: var(--border-thickness) solid var(--border-color);
}

.separator {
    width: 100%;
    height: var(--border-thickness);
    background: var(--border-color);
    margin: var(--spacing-md) 0;
}

.has-scrollbar::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}

.has-scrollbar::-webkit-scrollbar-track {
    background: var(--secondary-bg);
    border-radius: 5px;
}

.has-scrollbar::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 5px;
}

.has-scrollbar::-webkit-scrollbar-button { width: 20px; }

/* Main Layout */
main {
    margin: var(--spacing-md) var(--spacing-xs); /* Adjusted horizontal margin for small mobile */
    margin-bottom: calc(var(--spacing-xl) * 2); /* Space for fixed navbar */
}

/* Base styles for sidebar and main content block */
.sidebar, .main-content {
    background-color: var(--secondary-bg); /* Unified background for main blocks */
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-xl); /* Unified rounded corners */
    box-shadow: var(--shadow-md);
    z-index: 1;
}

/* Specific padding for mobile */
.sidebar { padding: var(--spacing-md); }
.main-content { padding: 0; } /* Padding handled by children on desktop, mobile articles get their own padding */


.page-content { /* Now only for the article content */
    display: none;
    animation: fadeIn 0.5s ease forwards;
    padding: var(--spacing-md); /* Default padding for articles on mobile */
    background: none; /* No separate background for articles */
    border: none; /* No separate border for articles */
    box-shadow: none; /* No separate shadow for articles */
    height: 100%; /* Ensure content fills available space in flex column */
}

.page-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Sidebar */
.sidebar {
    margin-bottom: var(--spacing-md);
    max-height: 160px; /* Increased initial collapsed height for more info */
    overflow: hidden;
    transition: max-height 0.5s ease-in-out;
}

.sidebar.active {
    max-height: 700px; /* Increased expanded height to ensure all content shows */
}

.sidebar-info {
    position: relative;
    display: flex;
    flex-direction: column; /* Stack avatar, name, and title */
    align-items: center; /* Center horizontally */
    gap: var(--spacing-sm); /* Space between items */
    text-align: center; /* Center text within content box */
}

.avatar-box {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xs);
}

.avatar-box img {
    border-radius: 50%; /* Make avatar round */
}

.info-content {
    /* Ensure name and title can take full width and stack */
    display: flex;
    flex-direction: column;
    align-items: center; /* Center name and title */
    width: 100%; /* Take full available width */
}

.info-content .name {
    font-size: var(--font-size-md);
    font-weight: var(--font-medium);
    margin-bottom: 4px;
    white-space: normal; /* Allow name to wrap on mobile */
    overflow: hidden;
    text-overflow: ellipsis; /* Add ellipsis if it still overflows after wrapping */
    max-width: 100%; /* Prevent horizontal overflow */
}

.info-content .title {
    color: var(--text-secondary);
    background-color: var(--primary-bg);
    font-size: var(--font-size-xs);
    font-weight: var(--font-light);
    white-space: normal; /* Allow title to wrap on mobile */
    overflow: hidden;
    text-overflow: ellipsis; /* Add ellipsis if it still overflows after wrapping */
    max-width: 100%; /* Prevent horizontal overflow */
    padding: 4px 10px;
    border-radius: var(--border-radius-sm);
    display: block; /* Ensure it behaves as a block element for sizing */
}

.info-more-btn {
    position: absolute;
    top: -15px; /* Adjust to align with card top */
    right: -15px; /* Adjust to align with card right */
    background-color: var(--card-bg);
    color: var(--accent-primary);
    border-radius: 0 var(--border-radius-lg); /* Rounded top-right */
    padding: 10px 15px;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-ease);
}

.info-more-btn:hover {
    background-color: var(--accent-secondary);
    color: var(--text-primary);
}

.info-more-btn span { display: none; } /* Hide text on mobile */
.info-more-btn ion-icon { font-size: var(--font-size-base); }

.sidebar-info-more {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease-in-out;
}

.sidebar.active .sidebar-info-more {
    opacity: 1;
    visibility: visible;
}

.contacts-list {
    display: grid;
    gap: var(--spacing-sm);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.contact-info .contact-link,
.contact-info address {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.contact-info address { font-style: normal; }

.contact-title {
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    margin-bottom: 2px;
}

.social-list {
    display: flex;
    flex-direction: column; /* Stack social items vertically */
    gap: var(--spacing-xs); /* Smaller gap between social buttons */
    padding-top: var(--spacing-sm);
}

.social-list .social-item {
    width: 100%; /* Ensure item takes full width */
}

.social-list .social-link {
    display: flex; /* Flexbox for icon and text */
    align-items: center;
    gap: 10px; /* Space between icon and text */
    background-color: var(--card-bg); /* Button background */
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 8px 12px; /* Padding for button */
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-ease);
}

.social-list .social-link:hover {
    background-color: var(--primary-bg); /* Darker background on hover */
    color: var(--accent-primary); /* Accent color on hover */
}

.social-list .social-link ion-icon {
    font-size: var(--font-size-md);
    color: var(--accent-primary); /* Icon color */
    flex-shrink: 0; /* Prevent icon from shrinking */
}

.social-list .social-link span {
    display: block; /* Ensure text displays */
    flex-grow: 1; /* Allow text to take remaining space */
    text-align: left; /* Align text to left */
}


/* Navbar */
.navbar {
    position: fixed; /* Keep fixed on mobile */
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(37, 42, 52, 0.85); /* New primary-bg color with opacity */
    backdrop-filter: blur(10px);
    border-top: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.navbar-list {
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-sm) var(--spacing-xs);
    overflow-x: auto; /* Enable scroll on small screens */
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    white-space: nowrap; /* Prevent wrapping */
}

.navbar-item {
    flex-shrink: 0; /* Prevent items from shrinking */
}

.navbar-link {
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-medium);
    padding: var(--spacing-sm) var(--spacing-xs);
    transition: color var(--transition-ease);
}

.navbar-link:hover, .navbar-link:focus {
    color: var(--text-primary);
}

.navbar-link.active {
    color: var(--accent-primary);
}

/* About Section */
.about-text p {
    margin-bottom: var(--spacing-sm);
    text-align: justify;
    color: var(--text-primary); /* Ensure clear text color */
}

.sub-title {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary); /* Highlight sub-titles */
}

.home-action {
    text-align: center;
    margin-top: var(--spacing-md);
}

/* Tools Section */
.tools-list-section {
    display: grid;
    gap: var(--spacing-lg);
}

.tool-category {
    background-color: var(--card-bg);
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.tool-category .title-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.tool-category .detailed-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-primary); /* Ensure text color */
}

.tool-category .detailed-list li {
    padding: 4px 0;
}

/* Projects Section */
.projects-content .filter-list { display: none; } /* Hidden on mobile by default */

.filter-select-box {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.filter-select {
    background-color: var(--card-bg);
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-regular);
    padding: var(--spacing-sm) var(--spacing-md);
}

.filter-select.active ion-icon { transform: rotate(0.5turn); }

.select-list {
    background-color: var(--card-bg);
    position: absolute;
    top: calc(100% + 8px);
    width: 100%;
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-md);
    z-index: 2;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.filter-select.active + .select-list {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
}

.select-item button {
    width: 100%;
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    text-transform: capitalize;
    transition: background-color var(--transition-ease);
}

.select-item button:hover {
    background-color: var(--primary-bg);
}

.project-list {
    display: grid;
    gap: var(--spacing-lg);
}

.project-item {
    /* Ensure initial visibility for default 'all' category */
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
/* This controls the hide/show animation when filtering */
.project-item.active {
    display: block; /* Show active items */
}
.project-item:not(.active) {
    display: none; /* Hide inactive items immediately to prevent flash of content */
}


.project-item a {
    display: block;
    background-color: var(--card-bg);
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition-ease);
}

.project-item a:hover {
    transform: translateY(-5px);
}

.project-img {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-ease);
}

.project-item a:hover .project-img img {
    transform: scale(1.05);
}

.project-item-icon-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background-color: rgba(0, 0, 0, 0.6);
    color: var(--accent-primary);
    padding: var(--spacing-sm);
    border-radius: 50%;
    opacity: 0;
    transition: all var(--transition-ease);
}

.project-item a:hover .project-item-icon-box {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.project-content-box {
    padding: var(--spacing-md);
}

.project-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-medium);
    margin-bottom: 4px;
    color: var(--text-primary);
}

.project-category {
    font-size: var(--font-size-sm);
    color: var(--text-primary); /* Ensure text color */
}

/* Services Section */
.services-list-container {
    margin-bottom: var(--spacing-lg);
}

.services-list {
    display: grid;
    gap: var(--spacing-md);
}

.service-item {
    background-color: var(--card-bg);
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
}

.service-icon-box {
    flex-shrink: 0;
}

.service-item-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-medium);
    margin-bottom: 4px;
}

.service-item-text {
    font-size: var(--font-size-sm);
    color: var(--text-primary); /* Ensure text color */
}

/* Blog Section */
.blog-posts {
    margin-bottom: var(--spacing-lg);
}

.blog-posts-list {
    display: grid;
    gap: var(--spacing-md);
}

.blog-post-item a {
    display: block;
    background-color: var(--card-bg);
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition-ease);
}

.blog-post-item a:hover {
    transform: translateY(-5px);
}

.blog-banner-box {
    width: 100%;
    height: 180px; /* Adjust height for blog images */
    overflow: hidden;
}

.blog-banner-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-ease);
}

.blog-post-item a:hover .blog-banner-box img {
    transform: scale(1.05);
}

.blog-content {
    padding: var(--spacing-md);
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: var(--spacing-sm);
}

.blog-meta .blog-category,
.blog-meta time {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.blog-meta .dot {
    width: 4px;
    height: 4px;
    background-color: var(--text-secondary);
    border-radius: 50%;
}

.blog-item-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-medium);
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-ease);
}

.blog-post-item a:hover .blog-item-title {
    color: var(--accent-primary);
}

.blog-text {
    font-size: var(--font-size-sm);
    color: var(--text-primary); /* Ensure text color */
    text-align: justify;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3; /* Limit text to 3 lines */
    -webkit-box-orient: vertical;
    margin-bottom: var(--spacing-sm);
}

.view-all-btn-container {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* Certifications Section */
.certifications-list-section .title-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.cert-list {
    background-color: var(--card-bg);
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    display: grid;
    gap: var(--spacing-md); /* Increased gap for certificates */
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); /* Responsive grid for certs */
}

.cert-list li {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    background-color: var(--secondary-bg); /* Background for each cert item */
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    border: var(--border-thickness) solid var(--border-color);
    text-align: center;
    cursor: pointer;
    transition: background-color var(--transition-ease), transform var(--transition-ease);
}

.cert-list li:hover {
    background-color: var(--primary-bg);
    transform: translateY(-3px);
}

.cert-list li img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-xs);
}

.cert-list li p {
    color: var(--text-primary);
    font-size: var(--font-size-xs);
}

/* Certificate Modal (Lightbox) */
.cert-modal-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--overlay-color);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-ease), visibility var(--transition-ease);
}

.cert-modal-container.active {
    opacity: 1;
    visibility: visible;
}

.cert-modal {
    background-color: var(--secondary-bg);
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
    max-width: 90%;
    width: 700px; /* Larger width for certificate view */
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.cert-modal-container.active .cert-modal {
    transform: scale(1);
}

.modal-close-btn { /* Reusing button from original template, but for cert modal too */
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: var(--card-bg);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: var(--font-size-base);
    z-index: 101;
}

.cert-modal-content {
    text-align: center;
}

.cert-modal-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
}

.cert-modal-desc {
    font-size: var(--font-size-base);
    color: var(--text-primary);
}


/* Contact Section */
.mapbox {
    width: 100%;
    height: 250px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
    border: var(--border-thickness) solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.mapbox iframe {
    width: 100%;
    height: 100%;
    border: none;
    filter: grayscale(1) brightness(0.8) invert(0); /* Subtle grayscale and brightness for dark theme */
}

.contact-form-section {
    margin-bottom: var(--spacing-lg);
}

.contact-form .input-wrapper {
    display: grid;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.contact-form textarea {
    min-height: 120px;
    resize: vertical;
    margin-bottom: var(--spacing-md);
}

.contact-form .primary-btn {
    width: 100%;
}

.social-connect-section, .newsletter-section {
    margin-top: var(--spacing-lg);
}

.social-list-large {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-sm);
    background-color: var(--card-bg);
    border: var(--border-thickness) solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.social-link-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--font-size-sm);
    color: var(--text-primary); /* Ensure text color */
    transition: color var(--transition-ease);
}

.social-link-item ion-icon {
    font-size: var(--font-size-md);
    color: var(--accent-primary);
}

.social-link-item:hover {
    color: var(--accent-primary);
}

.newsletter-section .primary-btn {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--card-bg);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    border-top: var(--border-thickness) solid var(--border-color);
    margin-top: var(--spacing-xl);
}

/* Media Queries */
@media (max-width: 575px) {
    main {
        margin: var(--spacing-md) var(--spacing-xs); /* Reduced horizontal margin for smallest screens */
    }
}

@media (min-width: 576px) {
    main {
        margin-left: auto;
        margin-right: auto;
        max-width: 540px;
    }

    /* Adjusted padding for larger mobile screens, applies to both sidebar and main-content */
    .sidebar, .main-content {
        padding: var(--spacing-lg);
    }

    .info-more-btn {
        right: -20px;
        top: -20px;
        padding: 12px 18px;
    }
    .info-more-btn span {
        display: block;
        font-size: var(--font-size-xs);
    }
    .info-more-btn ion-icon { display: none; }

    .sidebar.active { max-height: 650px; } /* Adjusted for more content */

    .navbar {
        border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    }
    .navbar-list {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    .navbar-link {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm) var(--spacing-sm);
    }

    .project-list, .blog-posts-list, .services-list {
        grid-template-columns: 1fr 1fr;
    }

    .mapbox {
        height: 350px;
    }

    .social-list-large {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    }

    .cert-list {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); /* Slightly wider for medium screens */
    }
}

@media (min-width: 768px) {
    main {
        max-width: 720px;
    }

    .sidebar.active { max-height: 700px; } /* Further adjusted for content */

    .contacts-list {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }

    .projects-content .filter-list {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
    .filter-select-box { display: none; } /* Hide dropdown on larger screens */

    .filter-btn {
        background-color: var(--card-bg);
        color: var(--text-secondary);
        padding: 8px 15px;
        border: var(--border-thickness) solid var(--border-color);
        border-radius: var(--border-radius-md);
        transition: background-color var(--transition-ease), color var(--transition-ease);
    }
    .filter-btn:hover {
        background-color: var(--primary-bg);
        color: var(--text-primary);
    }
    .filter-btn.active {
        background-color: var(--accent-primary);
        color: var(--primary-bg);
    }

    .project-list {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); /* Auto-fit columns */
    }
    .blog-posts-list {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    .services-list {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .mapbox {
        height: 400px;
    }

    .contact-form .input-wrapper {
        grid-template-columns: 1fr 1fr;
    }
    .contact-form .primary-btn {
        width: auto;
        margin-left: auto; /* Align to right */
    }
    .cert-list {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); /* Adjusted for this breakpoint */
    }
}

@media (min-width: 992px) {
    main {
        max-width: 960px;
        display: grid; /* Use grid for main layout */
        grid-template-columns: 300px 1fr; /* Sidebar width: 300px */
        gap: var(--spacing-lg);
        margin-top: var(--spacing-xl);
        align-items: flex-start; /* Align content to the top */
    }

    .sidebar {
        grid-column: 1 / 2; /* Place in first column */
        max-height: 100%; /* Always expanded */
        position: sticky;
        top: var(--spacing-lg); /* Keep it sticky with some top offset */
        height: calc(100vh - (2 * var(--spacing-xl))); /* Set explicit height for sidebar */
        overflow-y: auto; /* Enable scrolling for sidebar if content overflows */
        margin-bottom: 0; /* Remove bottom margin */
        padding-top: var(--spacing-xl); /* More padding at top for sticky effect */
    }
    /* Hide sidebar scrollbar by default, show on hover */
    .sidebar::-webkit-scrollbar {
        display: none;
    }
    .sidebar:hover::-webkit-scrollbar {
        display: block;
        width: 6px; /* Narrower scrollbar for sidebar */
    }
    .sidebar::-webkit-scrollbar-track {
        background: var(--primary-bg);
        border-radius: 3px;
    }
    .sidebar::-webkit-scrollbar-thumb {
        background: var(--border-color);
        border-radius: 3px;
    }
    .sidebar::-webkit-scrollbar-thumb:hover {
        background: var(--text-secondary);
    }


    .sidebar.active { max-height: 100%; } /* Overwrite active state on desktop */
    .info-more-btn { display: none; } /* Hide button on desktop */
    .sidebar-info-more {
        opacity: 1;
        visibility: visible;
    }

    .info-content .name,
    .info-content .title {
        white-space: nowrap; /* Ensure single line on desktop */
    }

    .main-content {
        grid-column: 2 / 3; /* Place in second column */
        width: auto; /* Let grid handle width */
        margin-left: 0; /* Remove left margin */
        display: flex; /* Flex container for navbar and articles */
        flex-direction: column;
        height: calc(100vh - (2 * var(--spacing-xl))); /* Adjust height to fill viewport minus margins */
        overflow: hidden; /* Hide overflow within this main content block */
        padding: 0; /* Remove padding as children will have it */
    }

    /* Main content internal scrolling */
    .main-content:hover {
        overflow-y: auto; /* Enable scroll on hover or always */
    }
    .main-content::-webkit-scrollbar {
        width: 8px; /* Scrollbar for main content area */
    }
    .main-content::-webkit-scrollbar-track {
        background: var(--primary-bg);
        border-radius: 4px;
    }
    .main-content::-webkit-scrollbar-thumb {
        background: var(--border-color);
        border-radius: 4px;
        border: 2px solid var(--primary-bg);
    }
    .main-content::-webkit-scrollbar-thumb:hover {
        background: var(--text-secondary);
    }

    .navbar {
        position: sticky; /* Sticky within main-content */
        top: 0;
        z-index: 10;
        width: 100%; /* Spans full width of main-content */
        background-color: var(--secondary-bg); /* Match main-content background */
        border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0; /* Rounded top corners */
        border-bottom: var(--border-thickness) solid var(--border-color); /* Separator line */
        padding: var(--spacing-sm) var(--spacing-lg); /* Padding inside navbar */
        box-shadow: var(--shadow-sm); /* Subtle shadow for depth */
        flex-shrink: 0; /* Prevent shrinking */
    }

    .navbar-list {
        justify-content: flex-start; /* Align nav items to start */
        padding: 0; /* Remove internal padding, handled by navbar */
    }
    .navbar-item {
        margin-right: var(--spacing-md);
    }
    .navbar-item:last-child {
        margin-right: 0;
    }

    .page-content {
        padding: var(--spacing-md) var(--spacing-lg); /* Add padding back to articles */
        flex-grow: 1; /* Allow articles to take remaining vertical space */
        overflow-y: auto; /* Internal scroll if content exceeds */
        -webkit-overflow-scrolling: touch;
    }
    /* Hide page-content scrollbar unless specific content needs it */
    .page-content::-webkit-scrollbar {
        display: none;
    }

    .social-list-large {
        grid-template-columns: 1fr; /* Stack vertically for more clear links */
    }
}

@media (min-width: 1200px) {
    main {
        max-width: 1140px;
    }

    .project-list {
        grid-template-columns: repeat(3, 1fr);
    }
    .blog-posts-list {
        grid-template-columns: repeat(3, 1fr);
    }
    .services-list {
        grid-template-columns: repeat(3, 1fr);
    }

    .cert-list {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); /* Larger certificate cards */
    }

    /* Scrollbar for body on desktop (if page is still scrollable) */
    body::-webkit-scrollbar {
        width: 12px;
    }
    body::-webkit-scrollbar-track {
        background: var(--primary-bg);
    }
    body::-webkit-scrollbar-thumb {
        background: var(--border-color);
        border-radius: 6px;
        border: 3px solid var(--primary-bg);
    }
    body::-webkit-scrollbar-thumb:hover {
        background: var(--text-secondary);
    }
}