/* Custom Keyframes and Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes glow {
    0% {
        text-shadow: 0 0 20px rgba(20, 184, 166, 0.5);
    }
    100% {
        text-shadow: 0 0 30px rgba(20, 184, 166, 0.8), 0 0 40px rgba(139, 92, 246, 0.5);
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes tilt {
    0% {
        transform: rotate(0deg);
    }
    25% {
        transform: rotate(1deg);
    }
    50% {
        transform: rotate(0deg);
    }
    75% {
        transform: rotate(-1deg);
    }
    100% {
        transform: rotate(0deg);
    }
}

@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(10px, -10px) rotate(90deg);
    }
    50% {
        transform: translate(-5px, -15px) rotate(180deg);
    }
    75% {
        transform: translate(-10px, -5px) rotate(270deg);
    }
}

@keyframes bgShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Glassmorphism Effects */
.glass-card {
    backdrop-filter: blur(16px) saturate(180%);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 
        0 8px 32px rgba(31, 38, 135, 0.37),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 12px 48px rgba(31, 38, 135, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

/* Navigation Animations */
.nav-link {
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #14B8A6, #8B5CF6);
    transition: top 0.3s ease;
}

.nav-link:hover::before {
    top: 95%;
}

/* Button Animations */
.cta-btn {
    position: relative;
    overflow: hidden;
}

.cta-btn::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;
}

.cta-btn:hover::before {
    left: 100%;
}

.cta-btn-secondary {
    position: relative;
    overflow: hidden;
}

.cta-btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, #14B8A6, #8B5CF6);
    transition: width 0.3s ease;
    z-index: -1;
}

.cta-btn-secondary:hover::before {
    width: 100%;
}

/* Skill Card Hover Effects */
.skill-card {
    perspective: 1000px;
}

.skill-card:hover .glass-card {
    transform: rotateY(5deg) rotateX(5deg) scale(1.02);
    box-shadow: 
        0 20px 60px rgba(31, 38, 135, 0.6),
        0 0 0 1px rgba(255, 255, 255, 0.1);
}

/* Project Card Animations */
.project-card {
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(20, 184, 166, 0.1),
        transparent
    );
    transform: rotate(45deg);
    transition: all 0.5s ease;
    opacity: 0;
}

.project-card:hover::before {
    opacity: 1;
    animation: shine 1.5s ease-in-out;
}

@keyframes shine {
    0% {
        transform: rotate(45deg) translate(-100%, -100%);
    }
    100% {
        transform: rotate(45deg) translate(100%, 100%);
    }
}

/* Form Animations */
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    transform: scale(1.02);
    box-shadow: 
        0 0 20px rgba(20, 184, 166, 0.3),
        0 8px 25px rgba(0, 0, 0, 0.2);
}

.form-group label {
    transition: all 0.3s ease;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group select:focus + label {
    color: #14B8A6;
}

/* Social Links Hover Effects */
.social-link {
    position: relative;
}

.social-link::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: linear-gradient(45deg, #14B8A6, #8B5CF6, #14B8A6);
    border-radius: inherit;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.social-link:hover::before {
    opacity: 1;
}

/* Particle Animation */
.floating-shape {
    animation: particleFloat 20s infinite ease-in-out;
}

/* Background Canvas Animations */
#bg-canvas {
    background: 
        radial-gradient(circle at 20% 80%, rgba(20, 184, 166, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(236, 72, 153, 0.05) 0%, transparent 50%);
    animation: bgShift 20s ease-in-out infinite;
    background-size: 400% 400%;
}

/* Scroll Animations */
.hero-content {
    animation: slideUp 1s ease-out;
}

/* Text Selection Styling */
::selection {
    background: rgba(20, 184, 166, 0.3);
    color: white;
}

::-moz-selection {
    background: rgba(20, 184, 166, 0.3);
    color: white;
}

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

::-webkit-scrollbar-track {
    background: rgba(15, 23, 42, 0.5);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, #14B8A6, #8B5CF6);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, #0D9488, #7C3AED);
}

/* Focus Styles for Accessibility */
.nav-link:focus,
.cta-btn:focus,
.cta-btn-secondary:focus {
    outline: 2px solid #14B8A6;
    outline-offset: 2px;
    border-radius: 4px;
}

button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid #14B8A6;
    outline-offset: 2px;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .floating-shape {
        display: none;
    }
    
    .glass-card:hover {
        transform: none;
    }
    
    .skill-card:hover .glass-card {
        transform: scale(1.02);
    }
    
    .project-card:hover .glass-card {
        transform: scale(1.02);
    }
}

/* High Performance Mode for Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-shape {
        animation: none;
    }
    
    #bg-canvas {
        animation: none;
    }
}

/* Dark Mode Enhancements */
@media (prefers-color-scheme: dark) {
    .glass-card {
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.08);
    }
    
    .glass-card:hover {
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.15);
    }
}

/* Loading Animation */
@keyframes loadingPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

.loading {
    animation: loadingPulse 1.5s ease-in-out infinite;
}

/* Custom Cursor Effects */
.cursor-pointer {
    cursor: pointer;
}

.cursor-pointer:hover {
    cursor: pointer;
}

/* Advanced Glassmorphism Variants */
.glass-elevated {
    backdrop-filter: blur(20px) saturate(200%);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 
        0 16px 64px rgba(31, 38, 135, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.glass-subtle {
    backdrop-filter: blur(8px) saturate(120%);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 
        0 4px 16px rgba(31, 38, 135, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Project Filter Button Active State */
.filter-btn.active {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.2), rgba(139, 92, 246, 0.2));
    border-color: rgba(20, 184, 166, 0.6);
    color: rgb(20, 184, 166);
    box-shadow: 
        0 0 20px rgba(20, 184, 166, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.filter-btn.active:hover {
    border-color: rgba(20, 184, 166, 0.8);
    box-shadow: 
        0 0 30px rgba(20, 184, 166, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}