/* General Resets & Box-sizing */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Modern Neutral Paper Base */
    --color-paper-light: #fdfaf7; /* Off-white / very light cream */
    --color-paper-dark: #f0ede9; /* Slightly darker cream for contrast sections */
    --color-text-dark: #333333;
    --color-text-light: #666666;

    /* Subtle Accents */
    --color-accent-primary: #5a7d7d; /* Dusty Teal/Green */
    --color-accent-secondary: #a87e6b; /* Muted Terracotta */
    --color-link: #4a6c6c; /* Slightly darker accent for links */

    /* WhatsApp Colors */
    --color-whatsapp: #25D366;
    --color-whatsapp-dark: #128C7E;

    /* Typography */
    --font-serif: 'Lora', serif;
    --font-sans-serif: 'Montserrat', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Box Shadows for depth */
    --shadow-subtle: 0 4px 8px rgba(0, 0, 0, 0.05); /* Light, soft shadow */
    --shadow-medium: 0 8px 16px rgba(0, 0, 0, 0.1); /* Slightly more prominent */
}

body {
    font-family: var(--font-serif); /* Serif for body text */
    line-height: 1.7;
    color: var(--color-text-dark);
    background-color: var(--color-paper-light); /* Main paper background */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md); /* Overall page padding like paper margins */
}

/* Page "Paper" Sections */
.paper-section {
    background-color: var(--color-paper-light); /* Ensure sections have the paper background */
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    border-radius: 4px; /* Slight rounded corners for a softer feel */
    box-shadow: var(--shadow-subtle); /* Subtle lift off the "desk" */
    position: relative; /* For potential pseudo-elements or background textures */
}

/* Subtle Paper Texture (Optional, advanced CSS) */
/* This can be achieved with a pseudo-element or background image */
/* For example: */
/* .paper-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml;base64,...'); (a very subtle noise/grain SVG)
    opacity: 0.1;
    pointer-events: none;
    z-index: -1;
} */


/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans-serif); /* Sans-serif for headings */
    color: var(--color-accent-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; margin-bottom: var(--spacing-lg); }
h3 { font-size: 1.8rem; margin-bottom: var(--spacing-sm); }

p {
    margin-bottom: var(--spacing-sm);
    max-width: 75ch; /* Optimal line length for readability */
}

.intro-text {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-text-light);
}

.drop-cap {
    float: left;
    font-size: 4em; /* Adjust size as needed */
    line-height: 0.8;
    margin-right: 0.1em;
    font-family: var(--font-serif); /* Ensure it's a serif font */
    color: var(--color-accent-secondary);
}

/* Layout & Structure */
main {
    max-width: 1000px; /* Max width for content, like a page */
    margin: var(--spacing-xl) auto; /* Center content with generous margins */
    flex-grow: 1; /* Allows main content to expand */
}

.main-header {
    background-color: var(--color-paper-light); /* Consistent with paper theme */
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-subtle);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.main-nav .logo {
    font-family: var(--font-sans-serif);
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--color-accent-primary);
}

.main-nav ul {
    list-style: none;
    display: flex;
}

.main-nav ul li {
    margin-left: var(--spacing-lg);
}

.main-nav ul li a {
    text-decoration: none;
    color: var(--color-text-dark);
    font-family: var(--font-sans-serif);
    font-weight: 400;
    padding-bottom: 5px;
    position: relative;
}

.main-nav ul li a::after { /* Underline effect on hover */
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent-secondary);
    transition: width 0.3s ease-out;
}

.main-nav ul li a:hover::after,
.main-nav ul li a.active::after {
    width: 100%;
}

/* Hero Section */
#hero {
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
    background-color: var(--color-paper-dark); /* Slightly darker paper tone */
}
.hero-content h1 {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-dark); /* Hero title can be darker */
}
.hero-content .subtitle {
    font-size: 1.5rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-sans-serif);
}

/* Buttons */
.btn, .btn-sm {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: transparent;
    border: 1px solid var(--color-accent-primary);
    color: var(--color-accent-primary);
    text-decoration: none;
    border-radius: 4px;
    font-family: var(--font-sans-serif);
    transition: all 0.3s ease;
    font-weight: 600;
}

.btn:hover, .btn-sm:hover {
    background-color: var(--color-accent-primary);
    color: var(--color-paper-light);
    box-shadow: var(--shadow-subtle);
}
.btn-sm {
    font-size: 0.9rem;
    padding: 0.6rem 1rem;
}

/* About Section */
.about-content {
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start; /* Align bio text with drop cap */
}
.profile-image-wrapper {
    flex-shrink: 0;
    width: 200px; /* Fixed width for the image */
    height: 200px; /* Fixed height for the image */
    border-radius: 50%; /* Make it circular */
    overflow: hidden; /* Hide overflow for circular shape */
    box-shadow: var(--shadow-medium); /* More prominent shadow for profile photo */
    border: 3px solid var(--color-accent-secondary); /* Subtle border like a framed photo */
}
.profile-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.bio-text {
    flex-grow: 1;
}

/* Grids (Skills, Services, Projects) */
.skills-grid, .services-grid, .projects-grid {
    display: grid;
    gap: var(--spacing-md);
}

.skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    text-align: center;
}

.skill-card {
    background-color: var(--color-paper-dark);
    padding: var(--spacing-sm);
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03); /* Lighter shadow for smaller cards */
    font-family: var(--font-sans-serif);
    font-weight: 400;
    color: var(--color-text-dark);
    transition: transform 0.2s ease;
}
.skill-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-subtle);
}

.services-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.service-card {
    background-color: var(--color-paper-dark);
    padding: var(--spacing-md);
    border-radius: 4px;
    box-shadow: var(--shadow-subtle);
    transition: transform 0.2s ease;
}
.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}
.service-card h3 {
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.4rem;
}
.service-card p {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.project-card {
    background-color: var(--color-paper-dark);
    padding: var(--spacing-md);
    border-radius: 4px;
    box-shadow: var(--shadow-subtle);
    text-align: center;
    transition: transform 0.2s ease;
}
.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

/* Project Image Container with Pills */
.project-image-container {
    position: relative;
    margin-bottom: var(--spacing-sm);
}

.project-image-container img {
    max-width: 100%;
    height: 200px; /* Fixed height for consistent cards */
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid rgba(0,0,0,0.05); /* Subtle border for images */
    display: block;
    width: 100%;
}

/* Project Pills positioned on bottom right of image */
.project-pills {
    position: absolute;
    bottom: 8px;
    right: 8px;
    display: flex;
    gap: 6px;
    z-index: 10;
}

/* Pill Links */
.pill-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(4px);
}

.pill-link:hover {
    transform: translateY(-2px) scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.github-pill {
    background-color: rgba(36, 41, 46, 0.9);
    color: white;
}

.github-pill:hover {
    background-color: rgba(26, 30, 34, 0.95);
}

.release-pill {
    background-color: rgba(168, 126, 107, 0.9);
    color: white;
}

.release-pill:hover {
    background-color: rgba(149, 107, 87, 0.95);
}

.pill-link svg {
    width: 16px;
    height: 16px;
}

/* Legacy project cards without image container */
.project-card img:not(.project-image-container img) {
    max-width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: var(--spacing-sm);
    border: 1px solid rgba(0,0,0,0.05);
}

/* Optional: Sepia/desaturation for project images */
/* .project-card img {
    filter: grayscale(20%) sepia(5%);
} */


/* Timeline (Experience) */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    width: 2px;
    background-color: var(--color-accent-primary);
    top: 0;
    bottom: 0;
    left: 20px; /* Adjust for spacing */
}

.timeline-item {
    padding: 10px 0 10px 40px; /* Left padding for content */
    position: relative;
    margin-bottom: var(--spacing-md);
    background-color: var(--color-paper-light); /* Content background */
    border-radius: 4px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--color-accent-secondary);
    border: 2px solid var(--color-accent-primary);
    border-radius: 50%;
    left: 16px; /* Align with line */
    top: 15px;
    z-index: 1;
}

.timeline-item h3 {
    margin-bottom: 0;
    font-size: 1.3rem;
}

.timeline-item .date {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: 5px;
    font-family: var(--font-sans-serif);
}

/* Contact Section - Centered */
#contact {
    text-align: center;
}

#contact h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

#contact > p {
    text-align: center;
    margin: 0 auto var(--spacing-lg) auto;
    max-width: 600px;
}

/* WhatsApp Contact Section */
.whatsapp-contact {
    display: flex;
    justify-content: center;
    margin: var(--spacing-xl) 0;
}

.whatsapp-card {
    background-color: var(--color-paper-dark);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
    text-align: center;
    max-width: 500px;
    width: 100%;
    transition: transform 0.2s ease;
}

.whatsapp-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.whatsapp-icon {
    color: var(--color-whatsapp);
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: center;
}

.whatsapp-card h3 {
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
    font-size: 1.8rem;
}

.whatsapp-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
    line-height: 1.6;
}

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-whatsapp);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-family: var(--font-sans-serif);
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
    white-space: nowrap;
    min-width: fit-content;
}

.whatsapp-btn:hover {
    background-color: var(--color-whatsapp-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 211, 102, 0.4);
}

.whatsapp-btn svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.social-links {
    text-align: center;
    margin-top: var(--spacing-xl);
}
.social-links a {
    text-decoration: none;
    color: var(--color-accent-primary);
    font-family: var(--font-sans-serif);
    font-weight: 500;
    margin: 0 var(--spacing-sm);
    padding-bottom: 3px;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}
.social-links a:hover {
    border-color: var(--color-accent-primary);
}


/* Footer */
.main-footer {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--color-paper-dark);
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-top: auto; /* Pushes footer to the bottom */
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.03); /* Subtle shadow on top */
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2rem; }

    .main-nav ul {
        display: none; /* Or implement a mobile menu */
    }
    .main-nav {
        justify-content: center;
    }

    #hero {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .about-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .profile-image-wrapper {
        margin-bottom: var(--spacing-md);
    }

    .timeline::before {
        left: 5px;
    }
    .timeline-item {
        padding-left: 25px;
    }
    .timeline-item::before {
        left: 0;
    }

    .skills-grid, .services-grid, .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-pills {
        bottom: 4px;
        right: 4px;
        gap: 4px;
    }

    .pill-link {
        width: 28px;
        height: 28px;
    }

    .pill-link svg {
        width: 14px;
        height: 14px;
    }

    .whatsapp-card {
        padding: var(--spacing-lg);
        margin: 0 var(--spacing-md);
    }

    .whatsapp-card h3 {
        font-size: 1.5rem;
    }

    .whatsapp-card p {
        font-size: 1rem;
    }

    .whatsapp-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1rem;
        gap: var(--spacing-xs);
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .whatsapp-btn svg {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    body {
        padding: var(--spacing-sm);
    }

    .paper-section {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .whatsapp-card {
        padding: var(--spacing-md);
        margin: 0;
    }

    .whatsapp-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.95rem;
        max-width: 100%;
    }

    .social-links a {
        margin: 0 var(--spacing-xs);
        font-size: 0.9rem;
    }
}