/* Visual Enhancements for Portfolio */

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Space for fixed header */
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, #3f51b5, #9c27b0);
    border-radius: 10px;
    transition: all 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, #5c6bc0, #ab47bc);
}

body.bright-mode ::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, #7986cb, #ba68c8);
}

body.bright-mode ::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, #9fa8da, #ce93d8);
}

/* Custom Cursor */
.custom-cursor {
    position: fixed;
    width: 30px;
    height: 30px;
    border: 2px solid #3f51b5;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease, width 0.3s ease, height 0.3s ease, background-color 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(63, 81, 181, 0.1);
    backdrop-filter: blur(2px);
}

.custom-cursor-dot {
    position: fixed;
    width: 8px;
    height: 8px;
    background-color: #3f51b5;
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
    transition: transform 0.2s ease, width 0.3s ease, height 0.3s ease, background-color 0.3s ease;
}

.cursor-text {
    color: white;
    font-size: 10px;
    font-weight: bold;
    opacity: 0;
    transition: opacity 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.custom-cursor.cursor-hover {
    transform: translate(-50%, -50%) scale(1.5);
    background-color: rgba(63, 81, 181, 0.3);
    border-color: #3f51b5;
}

.custom-cursor-dot.cursor-dot-hover {
    transform: translate(-50%, -50%) scale(0.5);
    background-color: #ff4081;
}

.custom-cursor.cursor-click {
    transform: translate(-50%, -50%) scale(0.8);
    background-color: rgba(255, 64, 129, 0.3);
    border-color: #ff4081;
}

.custom-cursor-dot.cursor-dot-click {
    transform: translate(-50%, -50%) scale(1.5);
    background-color: #ff4081;
}

/* Hide cursor on touch devices */
@media (hover: none) {
    .custom-cursor,
    .custom-cursor-dot {
        display: none;
    }
    body {
        cursor: auto !important;
    }
}

/* Particle Canvas */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.3;
    pointer-events: none;
}

/* Dark mode adjustments */
body.dark-mode #particle-canvas {
    opacity: 0.2;
}

/* Bright mode adjustments */
body.bright-mode #particle-canvas {
    opacity: 0.1;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 20%, rgba(103, 58, 183, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(33, 150, 243, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 50% 50%, rgba(233, 30, 99, 0.1) 0%, transparent 30%);
    z-index: -1;
    animation: gradientShift 15s ease infinite;
    background-size: 200% 200%;
}

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

/* Navigation and Button Styles */
.nav-links a, .btn, .nav-link {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    z-index: 1;
}

.nav-links a::before, 
.btn::before, 
.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #3f51b5, #9c27b0);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
    z-index: -1;
}

.nav-links a:hover::before,
.btn:hover::before,
.nav-link:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

/* Button Hover Effects */
.btn {
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: all 0.3s ease;
    border: none;
    background: linear-gradient(45deg, #3f51b5, #9c27b0);
    color: white;
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(63, 81, 181, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(63, 81, 181, 0.4);
}

.btn:active {
    transform: translateY(1px);
}

/* Social Icons */
.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    margin: 0 5px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.social-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #3f51b5, #9c27b0);
    z-index: -1;
    transform: scale(0);
    transition: transform 0.3s ease;
    border-radius: 50%;
}

.social-links a:hover {
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(63, 81, 181, 0.4);
}

.social-links a:hover::before {
    transform: scale(1);
}

/* Card Hover Effects */
.project-card, .cert-card, .skill-category {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.project-card::before, .cert-card::before, .skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: 0.5s;
    z-index: -1;
}

.project-card:hover, .cert-card:hover, .skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.project-card:hover::before, .cert-card:hover::before, .skill-category:hover::before {
    transform: translateX(100%);
}

/* Animated Icons */
.skill-icon, .project-icon, .cert-icon {
    transition: transform 0.3s ease;
}

.skill-item:hover .skill-icon, 
.project-card:hover .project-icon,
.cert-card:hover .cert-icon {
    transform: scale(1.2) rotate(5deg);
}

/* Glow Effects */
.highlight {
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #00bcd4, #3f51b5);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.highlight:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Floating Animation */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.floating {
    animation: float 6s ease-in-out infinite;
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(45deg, #2196f3, #e91e63);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Tooltip */
.tooltip {
    position: relative;
    display: inline-block;
    cursor: help;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 200px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
} 

/* Responsive Adjustments */
@media (max-width: 768px) {
    .project-card, .cert-card, .skill-category {
        margin: 15px 0;
    }
    
    .highlight::after {
        height: 2px;
    }
}