/* Custom CSS for IT Hub Portfolio */

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

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1f2937;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, #3b82f6, #8b5cf6);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, #2563eb, #7c3aed);
}

/* Floating background shapes */
.floating-shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

/* Navigation animations */
.nav-link {
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(45deg, #3b82f6, #8b5cf6);
    transition: width 0.3s ease;
}

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

.nav-link.active::after {
    width: 100%;
}

/* Mobile menu animations */
.mobile-nav-link {
    display: block;
    padding: 1rem 0;
    color: #9ca3af;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(75, 85, 99, 0.3);
}

.mobile-nav-link:hover {
    color: #3b82f6;
    padding-left: 1rem;
}

/* Hero section animations */
.hero-content {
    opacity: 0;
    transform: translateY(50px);
}

.hero-title {
    opacity: 0;
    transform: translateY(30px);
}

.hero-subtitle {
    opacity: 0;
    transform: translateY(30px);
}

.hero-description {
    opacity: 0;
    transform: translateY(30px);
}

.hero-buttons {
    opacity: 0;
    transform: translateY(30px);
}

/* FIXED: Service cards - Hidden initially, only show on scroll trigger */
.service-card {
    transition: all 0.3s ease;
    opacity: 0; /* Hidden initially */
    transform: translateY(0) rotateX(0) rotateY(0);
    will-change: transform, opacity;
    perspective: 1000px;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    visibility: hidden; /* Ensure hidden until triggered */
}

.service-card:hover {
    transform: translateY(-10px) rotateX(5deg) rotateY(5deg);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.2);
}

/* FIXED: Project cards - Hidden initially, only show on scroll trigger */
.project-card {
    transition: all 0.3s ease;
    opacity: 0; /* Hidden initially */
    transform: translateY(0) rotateX(0) rotateY(0);
    will-change: transform, opacity;
    perspective: 1000px;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    visibility: hidden; /* Ensure hidden until triggered */
}

.project-card:hover {
    transform: translateY(-15px) rotateX(10deg) rotateY(10deg);
    box-shadow: 0 25px 50px rgba(139, 92, 246, 0.3);
}

/* FIXED: Technology items - Hidden initially, only show on scroll trigger */
.tech-item {
    transition: all 0.3s ease;
    opacity: 0; /* Hidden initially */
    transform: translateY(0) scale(1) rotate(0deg);
    will-change: transform, opacity;
    perspective: 1000px;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    position: relative;
    overflow: hidden;
    visibility: hidden; /* Ensure hidden until triggered */
}

.tech-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.2), transparent);
    transition: left 0.5s;
}

.tech-item:hover::before {
    left: 100%;
}

.tech-item:hover {
    transform: translateY(-10px) scale(1.1) rotate(5deg);
    box-shadow: 0 15px 30px rgba(59, 130, 246, 0.4);
}

/* Contact form animations */
.contact-item {
    opacity: 0;
    transform: translateX(-30px);
}

/* Form input focus effects */
input:focus, textarea:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Button hover effects */
button {
    position: relative;
    overflow: hidden;
}

button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

button:hover::before {
    left: 100%;
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ENHANCED: New animation keyframes */
@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(100px);
    }
    50% {
        opacity: 1;
        transform: scale(1.05) translateY(-10px);
    }
    70% {
        transform: scale(0.9) translateY(0);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes flipIn {
    0% {
        opacity: 0;
        transform: rotateY(90deg) translateY(80px);
    }
    100% {
        opacity: 1;
        transform: rotateY(0deg) translateY(0);
    }
}

@keyframes elasticIn {
    0% {
        opacity: 0;
        transform: scale(0) rotate(360deg);
    }
    50% {
        opacity: 1;
        transform: scale(1.2) rotate(180deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(59, 130, 246, 0.6);
    }
}

/* ENHANCED: Animation classes for better control */
.animate-fade-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fade-left {
    animation: fadeInLeft 0.8s ease-out forwards;
}

.animate-fade-right {
    animation: fadeInRight 0.8s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease-out forwards;
}

.animate-bounce-in {
    animation: bounceIn 1s ease-out forwards;
}

.animate-flip-in {
    animation: flipIn 1.2s ease-out forwards;
}

.animate-elastic-in {
    animation: elasticIn 0.8s ease-out forwards;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

/* FIXED: Visibility states for cards - Only visible when triggered */
.card-visible {
    opacity: 1 !important;
    transform: translateY(0) scale(1) rotate(0deg) !important;
    visibility: visible !important;
}

.card-hidden {
    opacity: 0;
    transform: translateY(30px);
    visibility: hidden;
}

/* ENHANCED: Better animation performance */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ENHANCED: 3D perspective containers */
.perspective-container {
    perspective: 1000px;
    transform-style: preserve-3d;
}

/* ENHANCED: Technology section special effects */
#technology {
    position: relative;
    overflow: hidden;
}

#technology::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* ENHANCED: Card content animations */
.service-card .text-blue-400,
.project-card .text-blue-400,
.tech-item .text-blue-400 {
    transition: all 0.3s ease;
}

.service-card:hover .text-blue-400,
.project-card:hover .text-blue-400,
.tech-item:hover .text-blue-400 {
    transform: scale(1.2);
    filter: drop-shadow(0 0 10px currentColor);
}

/* Responsive design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .floating-shape {
        display: none;
    }
    
    /* FIXED: Better mobile card visibility - still hidden initially */
    .service-card,
    .project-card,
    .tech-item {
        opacity: 0;
        visibility: hidden;
    }
    
    /* Disable complex 3D effects on mobile for performance */
    .service-card:hover,
    .project-card:hover,
    .tech-item:hover {
        transform: translateY(-5px) scale(1.02);
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* Custom animations for GSAP */
.gsap-fade-up {
    opacity: 0;
    transform: translateY(50px);
}

.gsap-fade-left {
    opacity: 0;
    transform: translateX(-50px);
}

.gsap-fade-right {
    opacity: 0;
    transform: translateX(50px);
}

.gsap-scale {
    opacity: 0;
    transform: scale(0.8);
}

.gsap-rotate {
    opacity: 0;
    transform: rotate(-10deg) scale(0.8);
}

/* Parallax effect */
.parallax {
    transform: translateZ(0);
    will-change: transform;
}

/* Smooth transitions for all elements */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* Custom focus styles */
.focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Success/Error states for form */
.success {
    border-color: #10b981 !important;
}

.error {
    border-color: #ef4444 !important;
}

/* Custom tooltip */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #1f2937;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Gradient text animation */
.gradient-text {
    background: linear-gradient(45deg, #3b82f6, #8b5cf6, #ec4899, #f59e0b);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Pulse animation for call-to-action elements */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Stagger animation for lists */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
}

/* Custom cursor for interactive elements */
.interactive {
    cursor: pointer;
}

.interactive:hover {
    transform: scale(1.05);
}

/* Glass morphism effect */
.glass {
    background: rgba(31, 41, 55, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Neon glow effect */
.neon-glow {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.neon-glow:hover {
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
}

/* Typewriter effect */
.typewriter {
    overflow: hidden;
    border-right: 2px solid #3b82f6;
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink-caret {
    from, to {
        border-color: transparent;
    }
    50% {
        border-color: #3b82f6;
    }
}

/* Smooth page transitions */
.page-transition {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.page-transition.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Custom selection color */
::selection {
    background: rgba(59, 130, 246, 0.3);
    color: white;
}

/* Focus ring for accessibility */
.focus-ring:focus {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
}

/* FIXED: Force visibility for critical elements - Only when triggered */
.service-card,
.project-card,
.tech-item {
    /* Cards are hidden by default, only visible when triggered */
    opacity: 0;
    visibility: hidden;
}

/* ENHANCED: Better animation performance */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .project-card,
    .tech-item {
        transition: transform 0.3s ease, opacity 0.3s ease, box-shadow 0.3s ease;
    }
}

/* ENHANCED: Fallback for reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    /* Ensure cards are visible even with reduced motion */
    .service-card,
    .project-card,
    .tech-item {
        opacity: 1 !important;
        transform: none !important;
        visibility: visible !important;
    }
}

/* ENHANCED: Debug styles (remove in production) */
.debug-animation {
    border: 2px solid red;
}

.debug-animation.animated {
    border-color: green;
}

/* ENHANCED: Special effects for technology items */
.tech-item {
    position: relative;
    overflow: hidden;
}

.tech-item::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    animation: rotate 4s linear infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tech-item:hover::after {
    opacity: 1;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}