/* Base Reset and Variables (Original Deep Black/Purple Theme) */ 
:root {
    --color-dark: #1a1a1a;      /* Deep Black Base */
    --color-light: #f4f4f4;
    --color-accent: #6C63FF;    /* Classic Vibrant Purple Accent */
    --color-secondary-bg: #282828; /* Slightly lighter dark for contrast */
    --color-text: #e0e0e0;
    --max-width: 1200px;
    --spacing-lg: 80px;
    --spacing-md: 40px;
    --spacing-sm: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--color-dark);
    color: var(--color-text);
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* Global Layout & Typography */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

h1, h2, h3 {
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-light);
}

h1 { font-size: 3.5em; line-height: 1.1; }
h2 { font-size: 2.5em; text-align: center; margin-bottom: var(--spacing-lg); position: relative;}
h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    margin: 15px auto 0;
    border-radius: 5px;
}
h3 { font-size: 1.7em; }

p {
    margin-bottom: 1em;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

a:hover {
    color: #9A94FF; /* Lighter accent on hover */
}

/* --- Read More Link Fix (Global color change) --- */
.read-more-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: var(--spacing-sm);
    font-weight: 600;
    background: none; 
    border: none;
    padding: 0;
    cursor: pointer;
    color: var(--color-accent); 
    text-decoration: none; 
}

.read-more-link:hover {
    color: #9A94FF;
    text-decoration: underline;
}

/* --- Navigation --- */
#navbar {
    background-color: rgba(26, 26, 26, 0.98); 
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
    padding: 15px 0;
    transition: background-color 0.3s ease-in-out;
}

#navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.6em;
    font-weight: 800;
    color: var(--color-accent) !important;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 600;
    color: var(--color-text);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    bottom: -5px;
    left: 0;
    transition: width 0.3s ease-in-out;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none; 
    background: none;
    border: none;
    font-size: 1.8em;
    color: var(--color-light);
    cursor: pointer;
}

/* --- Hero Section (Flexbox) --- */
.hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: 90vh;
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

.hero-content {
    margin-bottom: var(--spacing-md);
    max-width: 800px;
}

.hero h1 {
    font-size: 4.5em;
    margin-bottom: 15px;
}

.tagline {
    font-size: 1.7em;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    font-weight: 400;
}

/* Action Buttons (View My Work & Resume) */
.hero-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.cta-button {
    background-color: var(--color-accent);
    color: var(--color-dark) !important;
    padding: 15px 35px;
    border-radius: 50px; 
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: background-color 0.3s ease-in-out, transform 0.3s ease-in-out;
    letter-spacing: 0.5px;
}

.cta-button:hover {
    background-color: #9A94FF;
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(108, 99, 255, 0.3);
}

.resume-button {
    background-color: var(--color-dark);
    color: var(--color-accent) !important;
    border: 2px solid var(--color-accent);
}

.resume-button:hover {
    background-color: var(--color-accent);
    color: var(--color-dark) !important;
}

.social-links {
    margin-top: var(--spacing-md);
}

.social-links a {
    font-size: 2em;
    margin: 0 15px;
    color: var(--color-text);
    transition: color 0.3s ease-in-out, transform 0.3s ease-in-out;
}

.social-links a:hover {
    color: var(--color-accent);
    transform: translateY(-3px);
}

/* --- About Section (Flexbox for content and image) --- */
#about {
    background-color: var(--color-secondary-bg);
}

.about-flex-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.about-photo-wrapper {
    flex: 1 1 300px;
    text-align: center;
}

.profile-photo {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--color-accent);
    box-shadow: 0 0 0 8px var(--color-secondary-bg);
}

.about-text-content {
    flex: 2 1 400px;
    text-align: left;
}

/* "Read More" Content */
.hidden-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease; 
    margin-bottom: 0; 
}

.hidden-content.expanded {
    /* Let JS control max-height for full content; no static cap here */
    margin-bottom: 1em; 
}


/* --- Projects Grid (CSS Grid) --- */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.project-card {
    background-color: var(--color-secondary-bg);
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out, opacity 0.5s, transform 0.5s;
    display: flex;
    flex-direction: column;
    overflow: hidden; 
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(108, 99, 255, 0.3);
}

.card-image-wrapper {
    height: 200px; 
    overflow: hidden;
    position: relative;
    flex-shrink: 0; 
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover; 
    display: block;
    transition: transform 0.5s;
}

.project-card:hover .card-image {
    transform: scale(1.05); 
}

.card-details {
    flex-grow: 1;
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
}

.project-card h3 {
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--color-light);
}

.project-card p {
    font-size: 0.95em;
    color: var(--color-text);
    flex-grow: 1; 
}

.tech-stack {
    margin-bottom: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-stack span {
    background-color: var(--color-dark);
    color: var(--color-accent);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8em;
    font-weight: 600;
}

.card-links {
    margin-top: var(--spacing-sm);
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.project-link {
    background-color: var(--color-dark);
    padding: 10px 18px;
    border-radius: 5px;
    font-size: 0.9em;
    font-weight: 600;
    border: 1px solid var(--color-accent);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent) !important;
    transition: background-color 0.3s ease-in-out, color 0.3s ease-in-out;
}

.project-link:hover {
    background-color: var(--color-accent);
    color: var(--color-dark) !important;
}

.load-more-btn {
    display: block;
    margin: 40px auto 0;
    padding: 12px 30px;
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    border-radius: 50px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

.load-more-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-dark);
}

.load-more-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: transparent;
    color: var(--color-accent);
}


/* --- Resources Grid (CSS Grid) --- */
#links {
    background-color: var(--color-dark);
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.resource-card {
    background-color: var(--color-secondary-bg);
    padding: var(--spacing-sm);
    border-radius: 10px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: border-color 0.3s ease-in-out, transform 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.resource-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
}

.resource-card h3 {
    margin-top: 10px;
    margin-bottom: 5px;
    font-size: 1.4em;
    color: var(--color-light);
}

.resource-card p {
    font-size: 0.9em;
    color: #b0b0b0;
    flex-grow: 1;
}

.resource-card i {
    font-size: 3em;
    margin-bottom: 10px;
    color: var(--color-accent);
}

/* --- Testimonials Section --- */
#testimonials {
    background-color: var(--color-secondary-bg);
}

.testimonial-carousel-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    padding: var(--spacing-sm) 0;
}

.testimonial-carousel {
    display: flex;
    overflow-x: auto; 
    scroll-snap-type: x mandatory; 
    -webkit-overflow-scrolling: touch; 
    scroll-behavior: smooth;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-sm); 
}

.testimonial-carousel::-webkit-scrollbar {
    height: 8px;
}

.testimonial-carousel::-webkit-scrollbar-track {
    background: #3a3a3a; 
    border-radius: 10px;
}

.testimonial-carousel::-webkit-scrollbar-thumb {
    background: var(--color-accent); 
    border-radius: 10px;
}

.testimonial-carousel::-webkit-scrollbar-thumb:hover {
    background: #9A94FF; 
}

.testimonial-card {
    flex: 0 0 32%; 
    min-width: 300px; 
    scroll-snap-align: start; 
    background-color: var(--color-dark);
    padding: var(--spacing-md);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
}

.testimonial-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: var(--spacing-sm);
    border: 3px solid var(--color-accent);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    flex-grow: 1; 
}

.testimonial-author {
    font-weight: 600;
    color: var(--color-light);
    margin-top: auto; 
}

.carousel-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-md);
    gap: 15px;
}

.carousel-button {
    background-color: var(--color-secondary-bg);
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2em;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s, transform 0.3s;
}

.carousel-button:hover:not(:disabled) {
    background-color: var(--color-accent);
    color: var(--color-dark);
    transform: scale(1.05);
}

.carousel-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.carousel-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 10px;
    height: 10px;
    background-color: #555;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
}

.dot.active {
    background-color: var(--color-accent);
    transform: scale(1.2);
}

/* --- Contact Section (Form) --- */
#contact {
    padding-bottom: var(--spacing-lg);
}

.contact-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-md) auto;
    font-size: 1.1em;
    color: #b0b0b0;
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--color-secondary-bg);
    padding: var(--spacing-md);
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-light);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 12px;
    background-color: #333;
    border: 1px solid #444;
    border-radius: 5px;
    color: var(--color-light);
    font-size: 1em;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(108, 99, 255, 0.4);
    outline: none;
}

.form-group textarea {
    resize: vertical; 
    min-height: 120px;
}

.contact-form .cta-button {
    width: auto; 
    margin-top: var(--spacing-sm);
    padding: 12px 40px;
    font-size: 1.1em;
    display: block; 
    margin-left: auto;
    margin-right: auto;
}

.form-status {
    margin-top: var(--spacing-sm);
    text-align: center;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.3s;
}

.form-status.success {
    color: #4CAF50; 
    opacity: 1;
}

.form-status.error {
    color: #f44336; 
    opacity: 1;
}


/* --- Footer (3-Column Structure) --- */
#footer {
    padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md) var(--spacing-sm);
    background-color: var(--color-dark); 
    border-top: 1px solid #3d3d3d;
}

.footer-columns {
    /* Main grid for the three columns */
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr; /* Custom widths for the three columns */
    gap: 40px;
    max-width: var(--max-width);
    margin: 0 auto 50px auto; /* Space before the bottom copyright bar */
    text-align: left;
}

.footer-col h3 {
    font-size: 1.3em;
    margin-bottom: 20px;
    color: var(--color-light);
    position: relative;
}

.footer-col h3::after {
    /* Underline style, left-aligned */
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background-color: var(--color-accent);
    margin: 5px 0 0 0;
}

/* Quick Links Styling */
.links-col ul {
    list-style: none;
    padding: 0;
}
.links-col li {
    margin-bottom: 10px;
}
.links-col a {
    color: var(--color-text);
    transition: color 0.3s;
}
.links-col a:hover {
    color: var(--color-accent);
}


/* Contact Information Styling */
.contact-col .contact-detail {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
}

.contact-col .contact-detail i {
    font-size: 1.2em;
    color: var(--color-accent);
    margin-right: 15px;
    margin-top: 3px; /* Align icon vertically with text */
    flex-shrink: 0; /* Prevent icon from shrinking */
}

.contact-col .contact-detail p {
    margin: 0;
    font-size: 1em;
}

.contact-col a {
    color: var(--color-text);
    text-decoration: none;
}
.contact-col a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}


.footer-bottom {
    margin-top: var(--spacing-md);
    border-top: 1px solid #3d3d3d;
    padding-top: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85em;
    color: #888;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-social {
    display: flex;
    gap: 15px;
    align-items: center;
}

.footer-social a {
    font-size: 1.3em;
    margin-left: 0;
    color: #888;
}
.footer-social a:hover {
    color: var(--color-accent);
}


/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    h1 { font-size: 3em; }
    h2 { font-size: 2em; margin-bottom: var(--spacing-md); }
    .tagline { font-size: 1.2em; }

    /* Footer changes for mobile */
    .footer-columns {
        grid-template-columns: 1fr; /* Stack all columns */
        text-align: center;
        gap: 30px;
    }
    .footer-col h3::after {
        margin: 5px auto 0 auto; /* Center underline */
    }
    /* Center Quick Links list for mobile */
    .links-col ul {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    /* Center Contact Details for mobile */
    .contact-col .contact-detail {
        justify-content: center;
        align-items: center;
    }
    .contact-col .contact-detail i {
        margin-top: 0;
    }
    
    /* Hero Buttons Stack */
    .hero-actions {
        flex-direction: column;
        gap: 15px;
    }
    .cta-button {
        width: 100%;
        max-width: 300px;
    }

    /* Navbar Toggle */
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: var(--color-dark);
        position: absolute;
        top: 60px;
        left: 0;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.5);
        padding-bottom: 10px;
    }
    .nav-links.active {
        display: flex;
    }
    .nav-links a {
        margin: 10px 0;
        padding: 10px 20px;
        text-align: center;
        width: 100%;
    }
    .nav-links a::after {
        display: none;
    }
    .nav-toggle {
        display: block;
    }
    #navbar .container {
        justify-content: space-between;
    }

    /* Hero Section */
    .hero {
        min-height: 70vh;
        padding-top: var(--spacing-md);
    }
    .hero h1 {
        font-size: 3em;
    }

    /* About Section */
    .about-flex-container {
        flex-direction: column;
        text-align: center;
    }
    .profile-photo {
        width: 200px;
        height: 200px;
    }
    .about-text-content {
        text-align: center;
    }

    /* Project & Resource Grids */
    .project-grid, .resource-grid {
        grid-template-columns: 1fr;
    }

    /* Testimonials Carousel for smaller screens */
    .testimonial-carousel {
        flex-wrap: nowrap; 
        overflow-x: auto;
    }
    .testimonial-card {
        flex: 0 0 80%; 
        margin-right: var(--spacing-sm);
        min-width: unset; 
    }
    .carousel-nav {
        margin-top: var(--spacing-md);
    }
    .carousel-nav .carousel-button,
    .carousel-nav .carousel-dots {
        flex-shrink: 0; 
    }

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .footer-social {
        margin-top: 15px;
        gap: 15px;
    }
}