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

:root {
    /* Colors */
    --primary-purple: #8a2be2;
    --deep-space: #0d0215;
    --cosmic-purple: #1a052a;
    --stardust: rgba(255, 255, 255, 0.85);
    --nebula-pink: #ff4d79;
    --bright-green: #4ade80;
    --text-muted-dark: rgba(255, 255, 255, 0.7);
    --card-bg-dark: rgba(26, 5, 42, 0.6);
    --card-border-dark: rgba(138, 43, 226, 0.2);
    --footer-text-muted: rgba(255, 255, 255, 0.65);
    --footer-icon-color: #a855f7; /* Purple-ish */
    --gradient-purple-start: #a855f7;
    --gradient-purple-end: #d8b4fe;


    /* Gradients */
    --galaxy-gradient: linear-gradient(135deg, #8a2be2, #5e17eb, #3b0f70);
    --cosmic-glow: radial-gradient(circle at 75% 30%, rgba(138, 43, 226, 0.15), transparent 60%);
    --course-gradient: linear-gradient(135deg, var(--gradient-purple-start), var(--gradient-purple-end)); /* Used for project buttons */
    --footer-gradient: linear-gradient(135deg, var(--gradient-purple-start), var(--gradient-purple-end));

    /* Shadows */
    --deep-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --light-glow: 0 0 20px rgba(138, 43, 226, 0.4);

    /* Transitions */
    --smooth-transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Base Styles */
html {
    scroll-behavior: smooth; /* For smooth #anchor scrolling */
}
body {
    font-family: 'Poppins', system-ui, -apple-system, sans-serif;
    background: var(--deep-space);
    color: var(--stardust);
    overflow-x: hidden;
    line-height: 1.6;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        var(--cosmic-glow),
        radial-gradient(circle at top right, #4a00e0, #3b0f70 50%, #1a052a 80%, #0d0215);
    z-index: -1;
}

/* --- Utility Animation Class --- */
.needs-animation {
    opacity: 0;
    transform: translateY(20px); /* Default animation: fade up */
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.needs-animation.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Navbar */
.navbar {
    background: rgba(13, 2, 21, 0.85) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(138, 43, 226, 0.2);
    padding: 1rem 0;
    transition: var(--smooth-transition);
}
.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--deep-shadow);
    background: rgba(13, 2, 21, 0.95) !important; /* Slightly more opaque on scroll */
}
.navbar-brand {
    font-size: 1.8rem; font-weight: 700; letter-spacing: 1.5px;
    background: var(--galaxy-gradient);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-flex; align-items: center;
    transition: var(--smooth-transition);
}
.logo-icon {
    font-size: 1.8rem; margin-right: 0.5rem;
    background: var(--galaxy-gradient);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-link {
    position: relative; color: rgba(255, 255, 255, 0.8);
    margin: 0 1rem; font-weight: 500; padding: 0.5rem 0;
    transition: var(--smooth-transition);
}
.nav-link::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
    background: var(--galaxy-gradient); transition: var(--smooth-transition);
}
.nav-link:hover, .nav-link.active { color: white; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* Hero Section */
#hero {
    min-height: 100vh; padding: 140px 0 80px; position: relative; /* Increased top padding slightly */
    overflow: hidden; display: flex; align-items: center;
}
#hero::before { /* Subtle radial glow for hero */
    content: ''; position: absolute; top: -50%; right: -30%; width: 80vh; height: 80vh;
    background: radial-gradient(circle, rgba(138, 43, 226, 0.10) 0%, transparent 70%); /* Reduced opacity */
    z-index: -1;
}
.gradient-text {
    background: var(--galaxy-gradient);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative; display: inline-block;
}
.hero-illustration {
    max-width: 100%; height: auto;
    filter: drop-shadow(0 20px 30px rgba(138, 43, 226, 0.3));
    animation: float 6s ease-in-out infinite;
}
@keyframes float {
    0% { transform: translateY(0px); } 50% { transform: translateY(-15px); } 100% { transform: translateY(0px); }
}
.stats-section { position: relative; margin-top: 2rem; }

/* Buttons (General gradient button) */
.btn-gradient {
    background: var(--galaxy-gradient); color: white; border: none;
    border-radius: 50px; padding: 12px 28px; font-weight: 600;
    letter-spacing: 0.5px; position: relative; overflow: hidden;
    transition: var(--smooth-transition);
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.4); z-index: 1;
}
.btn-gradient::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, #5e17eb, #8a2be2); opacity: 0;
    transition: var(--smooth-transition); z-index: -1;
}
.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(138, 43, 226, 0.6);
}
.btn-gradient:hover::before { opacity: 1; }

/* Play/Contact Button Style from Hero */
.btn-play {
    display: inline-flex; align-items: center; color: white;
    font-weight: 500; transition: var(--smooth-transition); text-decoration: none;
}
.btn-play i {
    font-size: 1.8rem; /* Slightly smaller if fa-2x is used in HTML */
    margin-right: 0.75rem; transition: var(--smooth-transition);
    background: var(--galaxy-gradient); -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.btn-play:hover { color: rgba(255, 255, 255, 0.9); transform: translateX(5px); }
.btn-play:hover i {
    transform: scale(1.1); filter: drop-shadow(0 0 10px rgba(138, 43, 226, 0.5));
}

/* About Me Section (#about) */
#about {
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}
.image-display-container { perspective: 1000px; }
/* Carousel styles (if used) */
.carousel-nav .btn-carousel-nav {
    background-color: rgba(168, 85, 247, 0.25); border: 1px solid rgba(168, 85, 247, 0.6);
    color: var(--gradient-purple-start); width: 44px; height: 44px; border-radius: 12px;
    display: inline-flex; align-items: center; justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.carousel-nav .btn-carousel-nav:hover {
    background-color: rgba(168, 85, 247, 0.5); color: #fff; transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(168, 85, 247, 0.3);
}
.image-wrapper { min-height: 450px; position: relative; }
.image-card {
    min-width: 100%; height: 100%; position: absolute; top: 0; left: 0;
    border-radius: 16px; overflow: hidden; box-shadow: 0 15px 40px rgba(0,0,0,0.4);
    transform: scale(0.9); opacity: 0; transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex; align-items: flex-end;
}
.image-card.active-card { transform: scale(1.05); opacity: 1; z-index: 3; }
.image-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.image-card.active-card img { transform: scale(1.03); }
.card-overlay {
    width: 100%; background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: white; padding: 30px 25px; transform: translateY(0); transition: all 0.4s ease;
}
.card-overlay h5 { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.5rem; }
.card-overlay p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 0; }
.info-checklist .checkmark-icon {
    color: var(--gradient-purple-start); font-size: 1.2rem;
    transition: transform 0.3s ease, color 0.3s ease;
}
.info-checklist li:hover .checkmark-icon {
    transform: scale(1.2); color: var(--nebula-pink);
}
.btn-about-more-gradient { /* Reused .btn-gradient styling */
    background: var(--galaxy-gradient); color: white; border: none;
    /* Other properties inherited from .btn-gradient */
}

/* Skills Section (#skills) */
.bg-cosmic-purple-tint {
    background-color: rgba(26, 5, 42, 0.3); /* Subtle bg for contrast */
    padding: 6rem 0;
}
.skill-item {
    background: var(--card-bg-dark);
    border: 1px solid var(--card-border-dark);
    border-radius: 12px;
    transition: var(--smooth-transition);
    padding: 1.5rem; /* Added padding */
}
.skill-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(138, 43, 226, 0.25);
    border-color: rgba(138, 43, 226, 0.4);
}
.skill-item i {
    transition: transform 0.3s ease;
    color: var(--nebula-pink); /* Consistent icon color */
}
.skill-item:hover i {
    transform: scale(1.1);
}
.skill-item h6 {
    font-weight: 500;
    margin-top: 0.5rem;
}

/* Services Section (#services) & General Card Styling */
#services { padding: 6rem 0; } /* Consistent padding */
.text-purple-light { color: var(--primary-purple); opacity: 0.8; }

.course-card { /* Used for Service Cards & Project Cards */
    background: var(--card-bg-dark);
    border: 1px solid var(--card-border-dark);
    border-radius: 16px;
    backdrop-filter: blur(8px);
    transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
    overflow: hidden;
    position: relative;
    z-index: 1;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}
/* Floating animation for service cards */
#services .course-card:nth-child(1) { animation: float 6s ease-in-out infinite; }
#services .course-card:nth-child(2) { animation: float 7s ease-in-out 0.5s infinite; }
#services .course-card:nth-child(3) { animation: float 5.5s ease-in-out 1s infinite; }

.course-card::before { /* Shine effect for cards */
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: linear-gradient(to bottom right, transparent 45%, rgba(138, 43, 226, 0.05) 50%, transparent 55%); /* Subtle shine */
    transform: rotate(30deg); animation: shine 6s infinite; z-index: -1;
    opacity: 0.7;
}
#services .course-card:nth-child(1)::before { animation-delay: 0s; }
#services .course-card:nth-child(2)::before { animation-delay: 1s; }
#services .course-card:nth-child(3)::before { animation-delay: 2s; }
@keyframes shine { 0% { transform: rotate(30deg) translate(-30%, -30%); } 100% { transform: rotate(30deg) translate(30%, 30%); } }

.course-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 35px rgba(138, 43, 226, 0.3);
    border-color: rgba(138, 43, 226, 0.4);
}

.card-icon { /* For service cards */
    font-size: 2.8rem; /* Increased size */
    background: var(--galaxy-gradient);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; margin-bottom: 1rem;
    transition: all 0.5s ease;
    display: inline-block; /* To allow transform */
}
.course-card:hover .card-icon {
    transform: scale(1.2) rotate(5deg); /* Added rotation */
    filter: drop-shadow(0 0 10px rgba(138, 43, 226, 0.5));
}

/* Projects Section (#projects) */
#projects { padding: 6rem 0; } /* Consistent padding */
.course-section-label { color: var(--text-muted-dark); letter-spacing: 1px; }

#projects .course-card { /* Styling for project cards */
    background-color: var(--card-bg-dark); border: 1px solid var(--card-border-dark);
    border-radius: 1rem; overflow: hidden; transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: none; /* Base shadow, hover enhances it */
}
#projects .course-card:hover { transform: translateY(-8px); box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35); } /* Stronger hover shadow */
.course-img { height: 220px; object-fit: cover; width: 100%;} /* Ensure full width */
#projects .card-body { padding: 1.5rem; } /* Increased padding */
.course-title { color: #fff; font-weight: 600; font-size: 1.3rem; margin-bottom: 0.75rem !important; }
.badge.bg-primary-purple {
    background-color: var(--primary-purple) !important;
    color: white;
    font-size: 0.75em;
    padding: 0.4em 0.7em;
    margin-bottom: 0.25rem; /* Space between badges if they wrap */
}
.btn-course-gradient { /* For project "Live Demo" button */
    background: var(--course-gradient); color: white; border: none; font-weight: 500;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    padding: 0.5rem 1rem; /* Adjusted padding for smaller buttons */
}
.btn-course-gradient:hover { color: white; transform: translateY(-2px); box-shadow: 0 4px 15px rgba(168, 85, 247, 0.3); }

.btn-outline-light.rounded-pill { /* For project "GitHub" button */
    border-color: rgba(255,255,255,0.5);
    color: rgba(255,255,255,0.8);
    padding: 0.5rem 1rem;
    transition: var(--smooth-transition);
}
.btn-outline-light.rounded-pill:hover {
    background-color: rgba(255,255,255,0.1);
    border-color: white;
    color: white;
    transform: translateY(-2px);
}


/* Why Work With Me Section (#why-me) */
#why-me { padding: 6rem 0; position: relative; overflow: hidden; }
.image-button-wrapper img { transition: transform 0.5s ease; border-radius: 16px; } /* Added border-radius */
.image-button-wrapper:hover img { transform: scale(1.03); }
.why-choose-label { color: var(--text-muted-dark); letter-spacing: 1px; }
.why-choose-headline { font-weight: 700; }
#why-me .text-white-50 { color: rgba(255, 255, 255, 0.8) !important; }
.why-choose-list { list-style: none; padding-left: 0; }
.why-choose-list li { margin-bottom: 1rem; transition: transform 0.3s ease; }
.why-choose-list li:hover { transform: translateX(5px); }
.why-choose-list .checkmark-icon {
    color: var(--gradient-purple-start); font-size: 1.2rem;
    transition: transform 0.3s ease, color 0.3s ease;
}
.why-choose-list li:hover .checkmark-icon {
    transform: scale(1.2); color: var(--nebula-pink);
}
.btn-choose-gradient { /* Reused .btn-gradient styling */
    background: var(--galaxy-gradient); color: white; border: none;
    /* Other properties inherited from .btn-gradient */
}

/* Contact Section (#contact) */
#contact { padding: 6rem 0; }
#contact .form-control {
    background-color: var(--card-bg-dark) !important; /* Ensure high specificity */
    border: 1px solid var(--card-border-dark) !important;
    color: var(--stardust) !important;
    border-radius: 0.5rem;
    padding: 0.85rem 1.25rem; /* Consistent padding */
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
#contact .form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
}
#contact .form-control:focus {
    background-color: rgba(26, 5, 42, 0.8) !important; /* Slightly darker on focus */
    border-color: var(--primary-purple) !important;
    box-shadow: 0 0 0 0.2rem rgba(138, 43, 226, 0.25);
    color: var(--stardust) !important;
}
#contact .btn-gradient { /* For Send Message button */
    padding: 14px 32px; /* Slightly larger padding */
}
#contact .fa-envelope, #contact .fa-linkedin, #contact .fa-github {
    color: var(--primary-purple);
    transition: color 0.3s ease;
}
#contact a.text-white-50:hover {
    color: white !important;
}
#contact a.text-white-50:hover i {
    color: var(--nebula-pink);
}


/* Footer Section (#main-footer) */
#main-footer {
    background-color: var(--cosmic-purple);
    color: var(--footer-text-muted); font-size: 0.9rem;
    position: relative; overflow: hidden;
    padding-top: 4rem; /* Adjusted padding */
    padding-bottom: 2rem; /* Adjusted padding */
}
.footer-bg-element { position: absolute; border-radius: 50%; opacity: 0.05; z-index: 0; }
.footer-bg-element-1 { width: 300px; height: 300px; background: var(--primary-purple); top: -150px; right: -100px; animation: floatFooter 8s ease-in-out infinite; }
.footer-bg-element-2 { width: 200px; height: 200px; background: var(--nebula-pink); bottom: -50px; left: -50px; animation: floatFooter 6s ease-in-out infinite reverse; }
@keyframes floatFooter { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }

#main-footer .container > .row,
#main-footer .container > hr,
#main-footer .container > .footer-copyright {
    position: relative; z-index: 1;
}

.footer-brand { font-size: 1.75rem; letter-spacing: 1px; color: #fff; text-decoration: none; }
.footer-brand .logo-icon { color: var(--footer-icon-color); } /* Already has gradient */
.footer-headline { font-weight: 600; line-height: 1.4; color: #fff; }
.footer-text { color: var(--footer-text-muted); line-height: 1.7; }
.follow-us-text { color: #fff; font-weight: 500; }
.social-icon {
    display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; /* Slightly larger */
    border-radius: 50%; background-color: rgba(255, 255, 255, 0.1); color: #fff;
    text-decoration: none; transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.social-icon:hover {
    background-color: var(--footer-icon-color); color: #fff;
    transform: translateY(-5px) rotate(10deg);
    box-shadow: 0 5px 15px rgba(138, 43, 226, 0.4);
}
.social-icon i { font-size: 1rem; }
.footer-heading { color: #fff; font-weight: 600; font-size: 1.1rem; }
.footer-list li { margin-bottom: 0.7rem; } /* Increased spacing */
.footer-list a { color: var(--footer-text-muted); text-decoration: none; transition: color 0.3s ease, transform 0.3s ease; display: inline-block;}
.footer-list a:hover { color: #fff; transform: translateX(3px); }
.list-icon { color: var(--footer-icon-color); font-size: 0.8em; vertical-align: middle; } /* Smaller icon */
.address-icon { color: var(--footer-icon-color); font-size: 1.1em; }
/* Removed subscribe group as it's not typical for portfolio */
.footer-small-links a { color: var(--footer-text-muted); font-size: 0.85em; text-decoration: none; transition: color 0.3s ease; }
.footer-small-links a:hover { color: #fff; }
.footer-divider { border-color: rgba(255, 255, 255, 0.15); }
.footer-copyright { color: var(--footer-text-muted); font-size: 0.9rem; }

/* Responsive */
@media (max-width: 991.98px) {
    #hero { padding-top: 120px; text-align: center; }
    .hero-illustration { max-width: 70%; margin: 2rem auto; } /* Adjusted size */
    .navbar-collapse { background: rgba(13, 2, 21, 0.98); border-radius: 12px; padding: 1rem; margin-top: 1rem; box-shadow: var(--deep-shadow); }
    .nav-link { margin: 0.5rem 0; padding: 0.75rem 1rem; border-radius: 8px; }
    .nav-link:hover, .nav-link.active { background-color: rgba(138, 43, 226, 0.1); }
    .nav-link::after { display: none; } /* Remove underline for mobile stacked nav */

    #about { padding-top: 4rem; padding-bottom: 4rem; text-align: center; }
    #about .image-display-container img { margin: 0 auto 2rem auto; } /* Center image */
    .info-checklist li { justify-content: center; }

    #why-me { text-align: center; }
    #why-me .image-button-wrapper img { margin: 0 auto 2rem auto; }
    .why-choose-list li { justify-content: center; }

    #contact .col-lg-8 { padding-left: 1rem; padding-right: 1rem; }
    #footer .col-md-6 { margin-bottom: 2rem;}
}

@media (max-width: 767.98px) {
    body { font-size: 0.95rem; }
    #hero h1, .display-3 { font-size: 2.5rem; } /* Adjust hero heading */
    .display-5 { font-size: 2.2rem; } /* Adjust other large headings */
    
    .stats-section .col-4 { margin-bottom: 1rem; }
    .stats-section h3 { font-size: 1.8rem; }

    #services .course-section .row.mb-4 { flex-direction: column; text-align: center; }
    #services .course-section .col-md-4.text-md-end { margin-top: 1.5rem; text-align: center !important; }
    
    #projects .course-title { font-size: 1.2rem; }

    #main-footer .text-center { text-align: center !important; } /* Ensure centering on mobile */
    #main-footer .social-icons { justify-content: center; margin-bottom: 1rem; }
    .footer-list li { text-align: center; }
    .footer-list .d-flex { justify-content: center; }
    .footer-small-links { text-align: center; }
    .footer-small-links a { margin: 0 0.5rem; }
    .footer-small-links span { display: none; } /* Hide separator on mobile for cleaner look */
}

@media (max-width: 576px) {
    .hero-illustration { max-width: 85%; }
    #hero h1, .display-3 { font-size: 2.1rem; }
    .display-5 { font-size: 1.9rem; }
    .btn-gradient, .btn-play { font-size: 0.9rem; padding: 10px 20px; }
    .btn-play i { font-size: 1.5rem; }
    #contact .btn-gradient { padding: 12px 28px; }
}


/* Focus states for accessibility */
button:focus-visible, a:focus-visible {
    outline: 2px solid var(--primary-purple) !important; /* Ensure visibility */
    outline-offset: 3px;
    box-shadow: 0 0 0 3px var(--deep-space), 0 0 0 5px var(--primary-purple) !important; /* Enhanced focus */
}
/* Ensure form inputs also have clear focus */
#contact .form-control:focus-visible {
     outline: 2px solid var(--primary-purple) !important;
    outline-offset: 2px; /* Slightly less offset for inputs */
    box-shadow: 0 0 0 0.2rem rgba(138, 43, 226, 0.35) !important; /* Consistent with its own focus */
}

/* Particle Canvas Styling */
canvas#particleCanvasPortfolio {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1; 
    display: block;
    pointer-events: none;
}

/* Hero Section H1 - Particle Target Text */
#hero h1 span#particleTextTarget {
    display: inline-block;
    /* color: rgba(255, 255, 255, 0.1); Fallback, JS will control this */
    transition: opacity 0.5s ease, color 0.5s ease;
}

body.hide-cursor {
    cursor: none;
}