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

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

body {
    font-family: 'Poppins', sans-serif;
    color: #8c64e9;
    line-height: 1.7;
    overflow-x: hidden;
    letter-spacing: 0.5px;
    min-height: 100vh;
    background-attachment: fixed;
}

/* Background Styles */
.background-3d {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    overflow: hidden;
}

.background-3d::before {
    content: '';
    position: absolute;
    width: 300%;
    height: 300%;
    top: -100%;
    left: -100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><polygon fill="rgba(59,130,246,0.05)" points="50,0 100,0 50,50 0,50"/><polygon fill="rgba(59,130,246,0.05)" points="50,50 100,50 50,100 0,100"/></svg>');
    background-size: 50px 50px;
    animation: bg-move 40s linear infinite;
    transform: rotate(15deg);
}

@keyframes bg-move {
    0% { transform: translate(0, 0) rotate(15deg); }
    100% { transform: translate(-50px, -50px) rotate(15deg); }
}

/* Sidebar Navigation */
.sidebar {
    height: 100vh;
    width: 250px;
    position: fixed;
    background: rgba(255, 255, 255, 0.9);
    padding-top: 40px;
    display: flex;
    flex-direction: column;
    box-shadow: 5px 0 15px rgba(0,0,0,0.1);
    z-index: 10;
    border-right: 1px solid rgba(0,0,0,0.05);
    backdrop-filter: blur(5px);
}

.sidebar a {
    padding: 18px 25px;
    text-decoration: none;
    color: #1F2937;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    position: relative;
    margin: 5px 15px;
    border-radius: 8px;
}

.sidebar a:hover {
    background: rgba(59, 130, 246, 0.1);
    transform: translateX(10px) scale(1.05);
    color: #3B82F6;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.sidebar a.active {
    background: rgba(59, 130, 246, 0.1);
    border-left: 3px solid #3B82F6;
}

.sidebar a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: #3B82F6;
    transform: scaleY(0);
    transition: transform 0.3s;
}

.sidebar a:hover::before,
.sidebar a.active::before {
    transform: scaleY(1);
}

/* Main Content Area */
.main {
    margin-left: 250px;
    padding: 50px 40px;
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.85);
    min-height: 100vh;
    backdrop-filter: blur(3px);
    box-shadow: -5px 0 20px rgba(0,0,0,0.05);
}

/* Typography */
h1 {
    font-size: 36px;
    color: #1F2937;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
    font-weight: 600;
    letter-spacing: 0.5px;
}

h1::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: #3B82F6;
    border-radius: 2px;
}

h2 {
    font-size: 26px;
    margin-top: 40px;
    color: #3B82F6;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* Profile Section */
.profile {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 40px;
}

.profile-pic {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #3B82F6;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.5s, box-shadow 0.5s;
}

.profile-pic:hover {
    transform: rotateY(15deg) scale(1.05);
    box-shadow: 5px 10px 30px rgba(0, 0, 0, 0.15);
}

/* Project Cards */
.project-card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(0,0,0,0.05);
    margin-bottom: 35px;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    transition: all 0.4s ease;
    transform-style: preserve-3d;
}

.project-card:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.project-card h2 {
    color: #3B82F6;
    margin-bottom: 15px;
    font-size: 22px;
}

.project-card ul {
    margin: 15px 0;
    padding-left: 25px;
    color: #4B5563;
}

.project-card .highlight {
    font-style: italic;
    color: #4B5563;
    background: rgba(59, 130, 246, 0.05);
    padding: 12px;
    border-left: 4px solid #3B82F6;
    margin-top: 15px;
    border-radius: 6px;
}

/* Contact Info */
.contact-info {
    background: rgba(255, 255, 255, 0.95);
    padding: 20px;
    border-left: 4px solid #3B82F6;
    margin-bottom: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

/* About Page */
.about-photo {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

/* Skills List */
.skills-list {
    list-style-type: none;
    padding-left: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.skills-list li {
    margin: 0;
    padding: 10px 20px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 20px;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.3s;
    color: #1F2937;
}

.skills-list li:hover {
    background: rgba(59, 130, 246, 0.2);
    transform: translateY(-3px);
}

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        flex-direction: row;
        padding: 15px;
        justify-content: center;
    }
    
    .main {
        margin-left: 0;
        padding: 30px 20px;
    }
    
    .sidebar a {
        padding: 10px 15px;
        margin: 0 5px;
    }
    
    .background-3d::before {
        animation: bg-move 60s linear infinite;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 28px;
    }
    
    h2 {
        font-size: 22px;
    }
    
    .profile {
        flex-direction: column;
        text-align: center;
    }
    
    .project-card {
        padding: 15px;
    }
}