/* Modern Reset with :focus-visible and CSS Nesting */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;

    &:focus-visible {
        outline: 3px solid var(--secondary);
        outline-offset: 3px;
        border-radius: 4px;
    }
}

/* Smooth page transitions */
html {
    scroll-behavior: smooth;
}

/* Global transition for theme changes */
body,
body * {
    transition: background-color 0.3s ease,
                color 0.3s ease,
                border-color 0.3s ease,
                box-shadow 0.3s ease;
}

/* Skip link styling - hidden until focused */
.skip-link {
    /* Visually hidden by default - fully clipped, not just off-screen */
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
    /* Prevent any touch interaction */
    pointer-events: none;
    /* Disable tap highlight on iOS */
    -webkit-tap-highlight-color: transparent;
    /* Styling for when visible */
    background: var(--secondary);
    color: white;
    font-weight: 600;
    text-decoration: none;
    z-index: 10000;
}

/* Only show skip link when:
   1. User is navigating with keyboard (html.using-keyboard)
   2. AND the link is focused */
html.using-keyboard .skip-link:focus {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    height: auto;
    padding: 12px 24px;
    margin: 0;
    overflow: visible;
    clip: auto;
    clip-path: none;
    white-space: normal;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 4px 12px rgba(33, 158, 188, 0.3);
    pointer-events: auto;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Visible focus indicator for all interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--secondary);
    outline-offset: 3px;
    border-radius: 4px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow: 0 0 0 2px var(--primary);
        --shadow-md: 0 0 0 3px var(--primary);
    }

    .skill-card,
    .education-card,
    .company-block {
        border: 2px solid var(--primary);
    }
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

:root {
    /* Color Palette */
    --primary: #1a1a1a;
    --secondary: #219ebc;
    --tertiary: #1d8aa8;
    --accent: #023047;
    --background: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 8px 15px -3px rgb(0 0 0 / 0.1);
    --gradient: linear-gradient(135deg, var(--secondary), var(--tertiary));
    
    /* Transitions */
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-body);
    background-color: var(--gray-50);
    color: var(--primary);
    line-height: 1.7;
}

/* Container */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 6rem 2rem 4rem; /* Changed from margin to padding for better control */
}

/* Header Section with Hero Improvements */
.header {
    text-align: center;
    padding-top: 2rem;
    margin-bottom: 4rem;
    position: relative;
    animation: heroFadeIn 0.8s ease-out;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.profile-picture-container {
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
}

.profile-picture {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--background);
    box-shadow: var(--shadow-md);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    position: relative;
    z-index: 1;
}

/* Gradient ring around profile picture */
.profile-picture-container::before {
    content: '';
    position: absolute;
    top: -6px;
    left: -6px;
    right: -6px;
    bottom: -6px;
    background: var(--gradient);
    border-radius: 50%;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.profile-picture-container:hover::before {
    opacity: 1;
}

.profile-picture:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md), 0 0 30px rgba(33, 158, 188, 0.3);
}

.header h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
    animation: slideInUp 0.6s ease-out 0.2s both;
}

.subtitle {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--gray-500);
    margin-bottom: 2rem;
    animation: slideInUp 0.6s ease-out 0.3s both;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Down Indicator */
.scroll-indicator {
    position: absolute;
    bottom: -3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-400);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: bounce 2s ease-in-out infinite;
    cursor: pointer;
    transition: color 0.3s ease;
}

.scroll-indicator:hover {
    color: var(--secondary);
}

.scroll-indicator svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Contact Info */
.contact-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-500);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item svg {
    width: 1.25rem;
    height: 1.25rem;
}

.contact-item:hover {
    color: var(--secondary);
}

/* Section styling and consistent spacing */
.section {
    margin-bottom: 2.5rem;
    scroll-margin-top: 5rem;
    padding-top: 1rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation for section children */
.section.visible .education-card,
.section.visible .company-block,
.section.visible .skill-card {
    animation: staggerFadeIn 0.5s ease-out forwards;
    opacity: 0;
}

.section.visible .education-card:nth-child(1),
.section.visible .company-block:nth-child(1),
.section.visible .skill-card:nth-child(1) { animation-delay: 0.1s; }

.section.visible .education-card:nth-child(2),
.section.visible .company-block:nth-child(2),
.section.visible .skill-card:nth-child(2) { animation-delay: 0.2s; }

.section.visible .education-card:nth-child(3),
.section.visible .company-block:nth-child(3),
.section.visible .skill-card:nth-child(3) { animation-delay: 0.3s; }

.section.visible .education-card:nth-child(4),
.section.visible .company-block:nth-child(4),
.section.visible .skill-card:nth-child(4) { animation-delay: 0.4s; }

@keyframes staggerFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 15px;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

/* Animated underline for section headers */
.section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.6s ease-out;
}

.section.visible h2::after {
    width: 100%;
}

/* Education Section */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px; /* Space between education entries */
    margin-top: 15px;
}

.education-card {
    background: var(--background);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.institution-header {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.institution-logo {
    height: 30px;
    width: auto;
    object-fit: contain;
    margin-right: 10px;
}

.institution {
    font-weight: 500;
    color: var(--gray-500);
}

.education-content h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 10px; /* Space between header and body text */
}

.education-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: 10px;
}

.grade {
    font-weight: 600;
    color: var(--accent);
    padding: 0.25rem 0.75rem;
    background: var(--gray-100);
    border-radius: 0.5rem;
}

/* Experience Section */
.company-block {
    margin-bottom: 20px; /* Space between experience entries */
    position: relative;
    background: var(--background);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.company-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.company-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px; /* Space between company header and first role */
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--secondary);
}

.company-info {
    display: flex;
    align-items: center;
}

.company-logo {
    height: 30px;
    width: auto;
    object-fit: contain;
    margin-right: 10px;
}

.company-header h3 {
    color: var(--secondary);
    font-size: 1.4rem;
    margin: 0;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.company-location {
    color: var(--gray-500);
    font-size: 0.9rem;
    padding: 0.4rem 1rem;
    background: var(--gray-100);
    border-radius: 20px;
}

.role-timeline {
    position: relative;
    padding-left: 1rem;
}

/* Vertical timeline line */
.role-timeline::before {
    content: '';
    position: absolute;
    left: 0.35rem;
    top: 0.5rem;
    bottom: 0.5rem;
    width: 2px;
    background: linear-gradient(to bottom, var(--secondary), var(--tertiary));
    opacity: 0.3;
}

.role-item {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 20px;
    opacity: 1;
    transform: none;
}

.role-item.animate {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s ease forwards;
}

.role-item:last-child {
    margin-bottom: 0;
}

/* Timeline dot marker */
.role-item::before {
    content: '';
    position: absolute;
    left: -0.65rem;
    top: 0.5rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--gradient);
    box-shadow: 0 0 0 4px rgba(33, 158, 188, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    z-index: 1;
}

.role-item:hover::before {
    transform: scale(1.2);
    box-shadow: 0 0 0 6px rgba(33, 158, 188, 0.25);
}

/* Connector line to content */
.role-item::after {
    content: '';
    position: absolute;
    left: 0.05rem;
    top: 0.85rem;
    width: 1rem;
    height: 2px;
    background: var(--secondary);
    opacity: 0.4;
}

.role-content h4 {
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px; /* Space between role header and date */
}

.experience-date {
    display: inline-block;
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-bottom: 10px;
    padding: 0.2rem 1rem;
    background: var(--gray-100);
    border-radius: 15px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.experience-date:hover,
.experience-date:focus-visible {
    background: var(--secondary);
    color: #ffffff;
}

/* Duration tooltip - hidden by default */
.duration-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0.9);
    padding: 0.4rem 0.8rem;
    background: var(--primary);
    color: var(--background);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    z-index: 100;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Tooltip arrow */
.duration-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--primary);
}

/* Show tooltip on hover (desktop) */
@media (hover: hover) and (pointer: fine) {
    .experience-date:hover .duration-tooltip,
    .experience-date:focus-visible .duration-tooltip {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) scale(1);
    }
}

/* Show tooltip on tap (mobile) - uses .show-duration class */
.experience-date.show-duration .duration-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) scale(1);
}

/* Dark mode tooltip adjustment */
.dark-mode .duration-tooltip {
    background: var(--gray-100);
    color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.dark-mode .duration-tooltip::after {
    border-top-color: var(--gray-100);
}

.role-description {
    margin: 0;
    padding: 0;
    list-style: none;
}

.role-description,
.role-description li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-color) !important;
    transition: color 0.3s ease;
    opacity: 1 !important;
    transform: none !important;
    visibility: visible !important;
    display: block !important;
}

/* Animation only for initial load */
.role-item.animate .role-description li {
    opacity: 0;
    transform: translateX(20px);
    animation: fadeInRight 0.5s ease forwards;
}

.role-description li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--secondary);
}

/* Skills Section */
.skills {
    margin-bottom: 2rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.skill-card {
    background: var(--background);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(20px);
    position: relative;
}

/* Gradient border effect on hover */
.skill-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 2px;
    background: var(--gradient);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.skill-card:hover::before {
    opacity: 1;
}

.skill-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(33, 158, 188, 0.15);
}

.skill-card-header {
    padding: 1.2rem 1.5rem;
    border-bottom: 2px solid var(--gray-200);
    transition: all 0.3s ease;
}

.skill-card:hover .skill-card-header {
    border-bottom: 2px solid var(--secondary);
}

.skill-card-header h3 {
    margin: 0;
    color: var(--secondary);
    font-size: 1.2rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.skill-card-content {
    padding: 1.2rem 1.5rem;
    opacity: 1; /* Always visible */
    transform: none; /* No initial transform */
    transition: all 0.3s ease;
}

.skill-card-content ul.skill-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.skill-card-content li {
    position: relative;
    padding-left: 1.2rem;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--primary);
    transition: color 0.3s ease;
}

.skill-card:hover .skill-card-content li {
    color: var(--secondary);
}

.skill-card-content li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--secondary);
    transition: color 0.3s ease;
}

/* Skill items for comma-separated format */
.skill-item-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-item {
    background: var(--gray-100);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--primary);
    transition: all 0.3s ease;
}

.skill-card:hover .skill-item {
    background: var(--gray-200);
    color: var(--secondary);
}

/* Language progress bars */
.language-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

.skill-card:hover .language-item {
    color: var(--secondary);
}

.language-name {
    width: 80px;
    font-weight: 500;
}

.progress-container {
    flex: 1;
    height: 8px;
    background-color: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
    margin: 0 10px;
}

.progress-bar {
    height: 100%;
    background: var(--gradient);
    border-radius: 4px;
    position: relative;
    transition: width 1s ease, background 0.3s ease;
}

.progress-bar:after {
    content: attr(data-percent);
    position: absolute;
    right: 0;
    top: -18px;
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.language-item:hover .progress-bar:after {
    opacity: 1;
}

.proficiency-level {
    font-size: 0.85rem;
    color: var(--gray-500);
    transition: color 0.3s ease;
}

.skill-card:hover .proficiency-level {
    color: var(--secondary);
}

/* Skills animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Modern CSS Nesting for media queries */
@media (max-width: 768px) {
    .container {
        padding: 5rem 1rem 2rem;
    }

    .navbar {
        height: 3.5rem;
        
        .nav-content {
            padding: 0 1rem;
            height: 3.5rem;
        }
    }

    .header {
        padding-top: 1rem;
    }

    .contact-info {
        flex-direction: column;
        align-items: center;
    }

    .education-grid {
        grid-template-columns: 1fr;
    }

    .company-block {
        padding: 1.5rem;
    }

    .company-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .role-item {
        padding-left: 1.5rem;
    }

    .skills li {
        padding: 1rem;
    }
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .skill-card {
        margin-bottom: 1rem;
    }
    
    .language-name {
        width: 65px;
    }
    
    .progress-container {
        margin: 0 5px;
    }
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .container {
        padding: 5rem 1rem 2rem; /* Slightly reduced padding on mobile */
    }

    .navbar {
        height: 3.5rem; /* Slightly smaller navbar on mobile */
    }

    .nav-content {
        padding: 0 1rem;
        height: 3.5rem;
    }

    .header {
        padding-top: 1rem;
    }

    .contact-info {
        flex-direction: column;
        align-items: center;
    }

    .education-grid {
        grid-template-columns: 1fr;
    }

    .company-block {
        padding: 1.5rem;
    }

    .company-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .role-item {
        padding-left: 1.5rem;
    }

    .skills li {
        padding: 1rem;
    }
}

/* Enhanced Print Styles with logical properties */
@media print {
    :root {
        --primary: #000 !important;
        --secondary: #000 !important;
    }
    
    body {
        background: none;
        padding: 0;
        font-size: 12pt;
        line-height: 1.5;
    }

    .container {
        box-shadow: none;
        padding: 0 !important;
        max-width: 100% !important;
    }

    .skills li:hover {
        transform: none;
        background: var(--gray-100);
        color: var(--primary);
    }

    .section {
        break-inside: avoid;
        margin-bottom: 1cm;
    }

    a {
        text-decoration: none;
        color: var(--primary);
    }

    a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        font-weight: normal;
    }

    .no-print {
        display: none !important;
    }
    body {
        background: none;
        padding: 0;
    }

    .container {
        box-shadow: none;
    }

    .skills li:hover {
        transform: none;
        background: var(--gray-100);
        color: var(--primary);
    }

    .section {
        break-inside: avoid;
    }
}

/* Dark mode styles with muted colors */
.dark-mode {
    --primary: #e8e8e8;
    --secondary: #4fc3dc;
    --tertiary: #3db0c9;
    --accent: #034b6d;
    --background: #121212;
    --gray-50: #0a0a0a;
    --gray-100: #1a1a1a;
    --gray-200: #252525;
    --gray-300: #3a3a3a;
    --gray-400: #6a6a6a;
    --gray-500: #9a9a9a;
    --text-color: #e8e8e8;
}

/* Reduce image brightness in dark mode */
.dark-mode .profile-picture,
.dark-mode .company-logo,
.dark-mode .institution-logo {
    filter: brightness(0.95) contrast(1.05);
}

/* Softer shadows in dark mode */
.dark-mode .company-block,
.dark-mode .education-card,
.dark-mode .skill-card {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.dark-mode .company-block:hover,
.dark-mode .education-card:hover,
.dark-mode .skill-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

/* Skills Section Animation */
.skill-animate {
    animation: slideInFade 0.6s ease forwards;
}

@keyframes slideInFade {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Print preview modal */
.print-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Navigation buttons styling */
.download-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--gradient);
    color: white;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}

.download-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    opacity: 0.9;
}

.download-button svg {
    width: 16px;
    height: 16px;
    stroke: white;
    stroke-width: 2;
    transition: var(--transition);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    stroke: var(--secondary);
    stroke-width: 2;
    transition: var(--transition);
    opacity: 1;
}

.download-button:hover svg,
.theme-toggle:hover svg {
    stroke: var(--secondary);
    opacity: 0.8;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .download-button {
        padding: 0.5rem 1rem;
        background: none !important;
        color: var(--gray-500) !important;
    }
    
    .theme-toggle {
        background: none !important;
    }
    
    .download-button:hover,
    .theme-toggle:hover {
        background: var(--gray-100) !important;
    }
}

.download-button svg,
.theme-toggle svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    stroke-width: 2;
    transition: var(--transition);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

.download-button:hover svg,
.theme-toggle:hover svg {
    stroke: var(--secondary);
}

body.dark-mode .theme-toggle .sun-icon {
    display: block;
    stroke: currentColor;
}

body.dark-mode .theme-toggle .moon-icon {
    display: none;
}

/* Optional: Add rotation animation for icon switch */
.theme-toggle svg {
    width: 24px;
    height: 24px;
    stroke: white;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: all 0.3s ease;
    fill: none;
}

@keyframes rotateIcon {
    from {
        transform: rotate(-180deg) scale(0.5);
        opacity: 0;
    }
    to {
        transform: rotate(0) scale(1);
        opacity: 1;
    }
}

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
}

/* Ensure SVGs stay white in dark mode */
body.dark-mode .theme-toggle svg,
.theme-toggle svg {
    stroke: white;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient);
    z-index: 1000;
    transition: width 0.1s ease;
}

.button-container {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 4px;
    z-index: 1000;
}

.button {
    height: 40px;
    width: 40px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
}

.blue-button {
    background: var(--gradient) !important;  /* Using the same gradient as the heading */
    color: white;
}

.button svg {
    stroke: white;
    stroke-width: 2;
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(33, 158, 188, 0.3);
    opacity: 0.95;
}

/* Icon display logic */
.sun-icon { display: block; }
.moon-icon { display: none; }
body.dark-mode .sun-icon { display: none; }
body.dark-mode .moon-icon { display: block; }

.download-button {
    display: flex !important;
    visibility: visible !important;
}

body:not(.dark-mode) .download-button svg,
body:not(.dark-mode) .theme-toggle svg,
body:not(.dark-mode) .theme-toggle .moon-icon {
    opacity: 1;
    stroke: currentColor;
}

/* Navigation and Scrolling */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    height: 4rem; /* Fixed height for consistency */
    transition: var(--transition);
}

body.dark-mode .navbar {
    background: rgba(26, 26, 26, 0.95);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 4rem; /* Match navbar height */
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem; /* Increased gap for better spacing */
}

.nav-links {
    flex: 1;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 0 2rem; /* Equal spacing on both sides */
}

.nav-logo {
    flex: 0 0 auto;
}

.nav-links {
    flex: 1;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.nav-utils {
    flex: 0 0 auto;
    display: flex;
    gap: 1.5rem;
}

.nav-spacer {
    flex: 1;
    max-width: 100px;
}

.nav-logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--secondary);
    text-decoration: none;
    display: inline-block;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    flex: 1;
}

.nav-links a,
.nav-links button {
    color: var(--gray-500);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-utils {
    display: flex;
    gap: 1.5rem;
    margin-left: auto;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--gray-100);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
}

.sun-icon {
    display: none;
}

.moon-icon {
    display: block;
}

body.dark-mode .sun-icon {
    display: block;
}

body.dark-mode .moon-icon {
    display: none;
}

.nav-buttons {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.download-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-500);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: 0.5rem;
}

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    color: var(--gray-500);
    position: relative;
}

.theme-toggle:hover {
    color: var(--secondary);
    background: transparent;
    transform: none;
    box-shadow: none;
}

.theme-toggle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--secondary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.theme-toggle:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    transition: var(--transition);
    opacity: 1;
}

.theme-toggle:hover svg {
    transform: none;
}

.download-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    color: var(--gray-500);
    position: relative;
}

.download-button:hover {
    color: var(--secondary);
    background: transparent;
    transform: none;
    box-shadow: none;
}

.download-button::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--secondary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.download-button:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.download-button svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    transition: var(--transition);
    opacity: 1;
}

.download-button:hover svg {
    transform: none;
}

@media (max-width: 768px) {
    .nav-buttons {
        width: 100%;
        margin: 1rem 0 0;
        justify-content: center;
    }
    
    .download-button {
        flex: 1;
        justify-content: center;
    }
    
    .theme-toggle {
        flex: 0 0 36px;
    }
}

/* Remove duplicate styles */

@media (max-width: 768px) {
    .nav-links a,
    .nav-links button {
        width: 100%;
        justify-content: center;
        padding: 1rem;
    }
    
    .download-button {
        justify-content: center;
        margin-top: 1rem;
    }

    /* Hide desktop buttons on mobile */
    .nav-utils .nav-buttons {
        display: none;
    }

    /* Show mobile menu buttons */
    .mobile-menu-button {
        display: block;
        width: 100%;
    }
}

/* Show desktop buttons on larger screens */
@media (min-width: 769px) {
    .mobile-menu-button {
        display: none;
    }
    
    .nav-utils .nav-buttons {
        display: flex;
        gap: 1rem;
        align-items: center;
    }
}

.nav-links a {
    position: relative;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
}

.nav-links a:hover,
.nav-links a:focus {
    color: var(--secondary);
    background: transparent;
}

.nav-links a.active {
    color: var(--secondary);
    font-weight: 600;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--secondary);
    transform: scaleX(1);
    transition: transform 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--secondary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.nav-links a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Mobile Navigation Styles */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--secondary);
    margin: 5px 0;
    transition: transform 0.3s ease;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
        position: absolute;
        right: 1rem;
        top: 50%;
        transform: translateY(-50%);
    }

    .nav-content {
        padding: 1rem;
        position: relative;
        justify-content: space-between;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 85%;
        height: 100vh;
        height: 100dvh; /* account for dynamic mobile browser UI */
        background: var(--background);
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        gap: 0;
        padding: 0;
        padding-top: calc(4.5rem + env(safe-area-inset-top)); /* clear the navbar/hamburger area */
        padding-bottom: calc(1.25rem + env(safe-area-inset-bottom));
        overflow-y: auto; /* ensure bottom content remains reachable */
        margin: 0;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        z-index: 1000;
    }

    .nav-links.active {
        transform: translateX(0);
    }

    /* Ensure links are visible and properly spaced in mobile menu */
    .nav-links a {
        display: block;
        padding: 1rem 2rem;
        width: 100%;
        text-align: center;
    }
    .nav-links a:first-of-type {
        margin-top: 0.5rem; /* a little breathing room below top padding */
    }

    /* Pin action buttons (Download + Theme) to bottom and separate them */
    .mobile-menu-button {
        padding: 1rem 1.5rem;
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        background: var(--background);
    }

    .mobile-menu-button:first-of-type {
        margin-top: auto;
        border-top: 1px solid var(--gray-200);
        position: sticky;
        bottom: 0;
    }

    .mobile-menu-button .download-button,
    .mobile-menu-button .theme-toggle {
        width: 100%;
        height: auto;
        justify-content: center;
        padding: 0.9rem 1rem;
        border-radius: 0.6rem;
        background: var(--gray-100);
        color: var(--primary);
    }

    .mobile-menu-button .download-button svg,
    .mobile-menu-button .theme-toggle svg {
        width: 18px;
        height: 18px;
        stroke: currentColor;
    }

    .mobile-menu-toggle.active .hamburger-line:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .mobile-menu-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active .hamburger-line:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* Enhanced Backdrop styles with better blur */
    .nav-backdrop {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0);
        z-index: 999;
        backdrop-filter: blur(0px);
        -webkit-backdrop-filter: blur(0px);
        pointer-events: none;
        transition: background 0.3s ease, backdrop-filter 0.3s ease, -webkit-backdrop-filter 0.3s ease;
    }

    .nav-backdrop.active {
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        pointer-events: auto;
    }

    /* Enhanced hamburger animation */
    .hamburger-line {
        transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55),
                    opacity 0.3s ease;
    }

    .mobile-menu-toggle.active .hamburger-line {
        background-color: var(--secondary);
    }
}

/* Prevent body scroll when menu is open */
body.menu-open {
    overflow: hidden;
}

/* Mobile menu buttons */
.mobile-menu-button {
    display: none;
}

@media (max-width: 768px) {
    .mobile-menu-button {
        display: flex;
        justify-content: center;
        width: 100%;
        padding: 1rem;
    }
    
    .mobile-menu-button .theme-toggle,
    .mobile-menu-button .download-button {
        width: 100%;
        justify-content: center;
        padding: 0.75rem;
        border-radius: 0.5rem;
        background: var(--gray-100);
    }
    
    .mobile-menu-button .theme-toggle:hover,
    .mobile-menu-button .download-button:hover {
        background: var(--gray-200);
    }
}

/* Ensure navbar stays on top */
.navbar {
    z-index: 1000;
}