:root {
    --primary-color: #2d3436;
    --secondary-color: #0984e3;
    --accent-color: #00b894;
    --text-color: #2d3436;
    --bg-color: #ffffff;
    --section-bg: #f8f9fa;
}

html, body {
    height: 100%;
    margin: 0;
    background-color: var(--bg-color);
    font-family: 'Montserrat', sans-serif;
    color: var(--text-color);
    scroll-behavior: smooth;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
}

/* Header Styles */
header {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

header.scrolled {
    padding: 0.5rem 0;
}

.navbar-brand svg {
    transition: transform 0.3s ease;
}

.navbar-brand:hover svg {
    transform: scale(1.1);
}

/* Main Content */
main {
    flex-grow: 1;
    padding-top: 80px;
    padding-bottom: 60px;
}

section {
    padding: 5rem 0;
    background-color: var(--bg-color);
}

section:nth-child(even) {
    background-color: var(--section-bg);
}

/* Card Styles */
.card {
    border: none;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

/* Button Styles */
.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-custom-black {
    background-color: var(--primary-color);
    color: white;
    border: 2px solid var(--primary-color);
}

.btn-custom-black:hover {
    background-color: transparent;
    color: var(--primary-color);
}

.btn-custom-grey {
    background-color: #6c757d;
    color: white;
    border: 2px solid #6c757d;
}

.btn-custom-grey:hover {
    background-color: transparent;
    color: #6c757d;
}

/* Footer Styles */
footer {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* Responsive Design */
@media (max-width: 768px) {
    main {
        padding-top: 60px;
    }
    
    section {
        padding: 3rem 0;
    }
    
    .btn {
        padding: 0.6rem 1.2rem;
    }
}

/* Skill Tags */
.skill-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    border-radius: 20px;
    background-color: var(--section-bg);
    color: var(--text-color);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background-color: var(--secondary-color);
    color: white;
    transform: scale(1.05);
}

/* Project Cards */
.project-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card .card-body {
    flex-grow: 1;
}

.project-image {
    border-radius: 12px 12px 0 0;
    object-fit: cover;
    height: 200px;
    width: 100%;
}

.project-card {
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.5s ease;
    border: none;
    background: var(--bg-color);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.project-card.show {
    transform: translateY(0);
    opacity: 1;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.technologies {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-stats {
    font-size: 0.9rem;
    color: var(--text-color);
}

/* Contact Section Styles */
.contact-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 100%);
    pointer-events: none;
}

.contact-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.contact-link {
    display: flex;
    align-items: center;
    padding: 1rem;
    color: white;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    margin-bottom: 1rem;
}

.contact-link:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    transform: translateX(5px);
}

.contact-link i {
    font-size: 1.5rem;
    margin-right: 1rem;
}

.contact-info {
    flex-grow: 1;
}

.contact-info h4 {
    margin: 0;
    font-size: 1.1rem;
}

.contact-info p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.8;
}