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

/* --- CSS Variables & Theming --- */
:root {
    /* Light Mode */
    --bg-color: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-nav: rgba(255, 255, 255, 0.7);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-primary: #4f46e5;      /* Indigo 600 */
    --accent-hover: #4338ca;        /* Indigo 700 */
    --accent-light: #e0e7ff;        /* Indigo 100 */
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Layout */
    --max-width: 1200px;
    --nav-height: 80px;

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

[data-theme="dark"] {
    /* Dark Mode - Pitch Black High Contrast */
    --bg-color: #000000;            /* Pitch black */
    --bg-secondary: #0a0a0a;        /* Very dark for cards */
    --bg-nav: rgba(0, 0, 0, 0.85);  /* Black nav */
    --text-primary: #ffffff;        /* Pure white */
    --text-secondary: #d1d5db;      /* Light gray */
    --accent-primary: #6366f1;      /* Indigo */
    --accent-hover: #818cf8;        
    --accent-light: #222222;        /* Dark gray for tags */
    --border-color: #222222;        /* Borders */
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.8), 0 2px 4px -2px rgb(0 0 0 / 0.8);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.9), 0 4px 6px -4px rgb(0 0 0 / 0.9);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
    position: relative;
}

main, footer {
    position: relative;
    z-index: 2;
}

/* --- Interactive Canvas Trail --- */
#cursor-trail {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: -1; /* Move behind content */
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    color: var(--text-primary);
    font-weight: 600;
}

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

ul {
    list-style: none;
}

/* --- Typography --- */
p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* --- Scroll Progress Indicator --- */
.scroll-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    z-index: 1001;
}

.scroll-progress-bar {
    height: 100%;
    background: var(--accent-primary);
    width: 0%;
    transition: width 0.1s ease;
}

/* --- Navigation --- */
.navbar.dock {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: max-content;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    background-color: var(--bg-nav);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.navbar.scrolled.dock {
    bottom: 1.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* --- Floating Brand Logo --- */
.logo {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    text-decoration: none;
    z-index: 1001;
}

.logo span {
    color: var(--accent-primary);
}

.floating-logo {
    position: fixed;
    top: 2rem;
    left: 2rem;
}

.animate-logo-flip {
    animation: magicSpin 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

@keyframes magicSpin {
    0% { transform: rotateY(0deg) scale(1); }
    50% { transform: rotateY(180deg) scale(1.2); color: var(--accent-primary); }
    100% { transform: rotateY(360deg) scale(1); }
}

.dock-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.dock-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.dock-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.2rem;
    transition: var(--transition);
    text-decoration: none;
    background: transparent;
    border: none;
    cursor: pointer;
}

.dock-pill {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1.25rem;
    height: 40px;
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
}

.nav-link.dock-icon:hover,
.nav-link.dock-icon.active,
.nav-link.dock-pill:hover,
.nav-link.dock-pill.active {
    background-color: var(--accent-primary);
    color: #ffffff;
    transform: translateY(-2px);
}

.dock-divider {
    width: 1px;
    height: 24px;
    background-color: var(--border-color);
    margin: 0 0.25rem;
    opacity: 0.5;
}

#theme-toggle:hover {
    background-color: var(--bg-secondary);
    color: var(--accent-primary);
}

/* Theme Toggle Internal Animation */
.mode-icon {
    transition: transform 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55), opacity 0.3s ease;
}

.animate-mode-spin {
    transform: rotate(360deg) scale(0.5);
    opacity: 0;
}

/* --- Layout Utilities --- */
.section {
    padding: 6rem 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-title {
    margin-bottom: 4rem;
    text-align: center;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.section-title .underline {
    width: 60px;
    height: 4px;
    background-color: var(--accent-primary);
    margin: 0 auto;
    border-radius: 2px;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn i {
    margin-left: 0.5rem;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: #ffffff;
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--accent-primary);
}

.btn-outline:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
    transform: translateY(-2px);
}

/* --- Home / Hero Section --- */
.hero {
    position: relative;
    padding-top: calc(var(--nav-height) + 4rem);
    align-items: flex-start;
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero-content {
    max-width: 800px;
}

.greeting {
    color: var(--accent-primary);
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: block;
}

.name {
    font-size: clamp(3rem, 8vw, 5rem);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.typing-text {
    color: var(--text-primary);
}

.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--accent-primary);
    animation: blink 1s step-end infinite;
}

.tagline {
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

/* --- About Section --- */
.about {
    max-width: var(--max-width);
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.about-highlights {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.highlight-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-top: 0.2rem;
}

.highlight-item h4 {
    margin-bottom: 0.2rem;
}

.highlight-item span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.about-image-wrapper {
    position: relative;
}

.about-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* --- Skills Section --- */
.skills {
    background-color: var(--bg-secondary);
}

.skills-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.skills-card {
    background-color: var(--bg-color);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.skills-card h3 {
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skills-card h3 i {
    color: var(--accent-primary);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.skill-tag {
    background-color: var(--accent-light);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.skill-tag:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
}

/* --- Projects Section --- */
.projects {
    max-width: var(--max-width);
    margin: 0 auto;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
}

.project-card {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.project-img {
    position: relative;
    height: 160px;
    overflow: hidden;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-img img {
    transform: scale(1.08);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    width: 40px;
    height: 40px;
    background-color: #ffffff;
    color: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1rem;
    transition: var(--transition);
}

.project-link:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
}

.project-info {
    padding: 1.1rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-info h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.project-info p {
    font-size: 0.82rem;
    flex-grow: 1;
    line-height: 1.5;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--accent-primary);
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    margin-top: 1rem;
}

.projects-more {
    text-align: center;
    margin-top: 3rem;
}

/* --- Contact Section --- */
.contact {
    background-color: var(--bg-secondary);
}

.contact-content {
    max-width: var(--max-width);
    margin: 0 auto;
}

.contact-subtext {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 4rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
}

.contact-item h4 {
    margin-bottom: 0.25rem;
}

.contact-socials {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.contact-socials a {
    width: 40px;
    height: 40px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-primary);
    transition: var(--transition);
}

.contact-socials a:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.contact-form button {
    align-self: flex-start;
    border: none;
}

/* --- Footer --- */
.footer {
    background-color: var(--bg-color);
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    position: relative;
}

.footer-content p {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.footer-content i {
    color: #ef4444;
}

.scroll-top {
    position: absolute;
    right: 2rem;
    top: -20px;
    width: 40px;
    height: 40px;
    background-color: var(--accent-primary);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.scroll-top:hover {
    transform: translateY(-5px);
    background-color: var(--accent-hover);
}

/* --- Animations & Utilities --- */

@keyframes blink {
    50% { background-color: transparent; }
}

.fade-in-up {
    animation: fadeInUp 1s forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive Design --- */
@media screen and (max-width: 992px) {
    .about-content,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image-wrapper {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
}

/* --- Resume / Experience Section --- */
.resume-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.resume-block h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.resume-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.resume-item {
    display: flex;
    gap: 1.25rem;
    padding: 1rem 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
}

.resume-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent-hover);
}

.resume-badge {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    flex-shrink: 0;
}

.resume-content {
    flex: 1;
}

.resume-header {
    display: flex;
    justify-content: space-between;
    align-items: center; /* Changed from baseline to center nicely with smaller text */
    margin-bottom: 0; /* Removed margin when collapsed to stay ultra-sleek */
}

.collapsible-header {
    cursor: pointer;
    transition: var(--transition);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.toggle-icon {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.resume-body {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.4s ease;
    margin-top: 0;
}

.resume-item.active .resume-body {
    max-height: 1000px; /* High enough to fit content */
    opacity: 1;
    margin-top: 1rem;
}

.resume-item.active .toggle-icon {
    transform: rotate(180deg);
    color: var(--accent-primary);
}

.resume-header h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.resume-date {
    color: var(--text-secondary);
    font-size: 0.85rem;
    white-space: nowrap;
}

.resume-content h4 {
    font-size: 1rem;
    color: var(--text-primary);
    opacity: 0.8;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.resume-content p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

@media screen and (max-width: 768px) {
    .navbar.dock {
        width: 92%;
        bottom: 1rem;
        padding: 0.5rem;
        gap: 0;
    }

    .dock-icon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }

    .dock-divider {
        margin: 0 0.15rem;
    }

    .hero-cta {
        flex-direction: column;
    }
    
    .skills-content {
        grid-template-columns: 1fr;
    }
    
    .resume-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .resume-item {
        padding: 0.75rem 1rem;
        gap: 0.75rem;
    }
    
    .resume-badge {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .name {
        font-size: clamp(2.5rem, 8vw, 4rem);
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 480px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}