/* Color Variables */
:root {
    --primary-blue: #1a4b84;
    --secondary-blue: #2c71c7;
    --light-blue: #e8f1ff;
    --dark-blue: #0d2444;
    --accent-blue: #4a90e2;
    --link-color: #0000EE
}

/* Global Styles */
* {
    transition: all 0.3s ease;
}

body {
    color: #333;
}

/* Navigation Styles */
.navbar {
    background-color: var(--primary-blue) !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: padding 0.3s ease;
    padding: 0.5rem 1rem;
}

.navbar.expanded {
    padding: 1rem;
}

.navbar-light .navbar-brand,
.navbar-light .navbar-nav .nav-link {
    color: white !important;
    position: relative;
    padding-bottom: 3px;
    transition: all 0.3s ease;
}

.navbar-light .navbar-brand {
    font-size: 1.2rem;
    transition: font-size 0.3s ease;
}

.navbar:hover .navbar-brand {
    font-size: 1.4rem;
}

.navbar-light .navbar-nav .nav-link {
    margin: 0 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.navbar:hover .navbar-nav .nav-link {
    padding: 0.7rem 1.2rem;
    margin: 0 0.7rem;
}

.navbar-light .navbar-nav .nav-link:hover {
    background-color: var(--secondary-blue);
    transform: translateY(-2px);
}

.navbar-light .navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--light-blue);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-light .navbar-nav .nav-link:hover::after {
    width: 80%;
}

/* Hero Section Styles */
.hero-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--light-blue) 0%, #ffffff 100%);
}

.hero-section .display-4 {
    color: var(--primary-blue);
    font-weight: 600;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

.hero-section .lead {
    color: var(--secondary-blue);
    opacity: 0;
    animation: fadeInUp 1s ease 0.3s forwards;
}

.hero-section .btn {
    opacity: 0;
    animation: fadeInUp 1s ease 0.6s forwards;
}

.hero-section img {
    transition: transform 0.5s ease;
}

.hero-section img:hover {
    transform: scale(1.05) rotate(2deg);
}

/* Button Styles */
.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary:hover {
    background-color: var(--secondary-blue);
    border-color: var(--secondary-blue);
}

.btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255,255,255,0.1);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
    z-index: -1;
}

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

/* Project Card Styles */
.project-card {
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: none;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

.project-card img {
    transition: all 0.5s ease;
}

.project-card:hover img {
    transform: scale(1.05);
}

/* Skills Section Styles */
.skills-section {
    background-color: var(--light-blue);
    padding: 80px 0;
}

.skills-section .card {
    transition: all 0.3s ease;
    height: 330px;
}

.skills-section .card:hover {
    transform: translateY(-5px);
    background-color: var(--light-blue);
}

/* Progress Bar Styles */
.progress {
    height: 10px;
    border-radius: 5px;
}

.progress-bar {
    background-color: var(--primary-blue);
    width: 0;
    transition: width 1.5s ease-in-out;
}

.card:hover .progress-bar {
    width: var(--width-value);
}

/* Experience Item Styles */
.experience-item {
    margin-bottom: 30px;
    padding: 20px;
    border-left: 3px solid var(--primary-blue);
    background-color: #ffffff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.experience-item:hover {
    border-left: 8px solid var(--primary-blue);
    transform: translateX(10px);
    background-color: var(--light-blue);
}

/* Form Styles */
.form-control {
    transition: all 0.3s ease;
}

.form-control:focus {
    transform: translateY(-2px);
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 0.2rem rgba(74, 144, 226, 0.25);
}

/* Section Title Styles */
section h2 {
    color: var(--primary-blue);
    margin-bottom: 2rem;
    position: relative;
}

section h2:after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background-color: var(--accent-blue);
    margin: 15px auto 0;
    transition: width 0.3s ease;
}

section h2:hover:after {
    width: 100px;
}

/* Footer Styles */
footer {
    background-color: var(--dark-blue) !important;
    color: white;
}

footer a {
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent-blue);
}

/* Card Title Styles */
.card-title {
    color: var(--primary-blue);
}

h3, h4 {
    color: var(--primary-blue);
}

/* Contact Section Styles */
/* Contact Section Styles */
.contact-section {
    background-color: var(--background-color);
    position: relative;
    overflow: hidden;
}

.contact-section .section-title {
    color: var(--text-color);
    font-size: 2.5rem;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

.contact-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 2rem;
    height: 100%;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: calc(var(--animation-order) * 0.1s);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
    border-radius: 15px;
    z-index: 0;
}

.card-content {
    position: relative;
    z-index: 1;
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.contact-card:hover .contact-icon {
    transform: scale(1.1);
}

.contact-card h3 {
    color: var(--text-color);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.contact-link {
    color: var(--link-color);
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
}

.contact-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.contact-link:hover {
    color: var(--primary-color-hover);
}

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

.location-text {
    color: var(--primary-color);
    font-weight: 500;
}

.closing-text {
    margin-top: 3rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.8s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Ensure each card animates in sequence */
.contact-card:nth-child(1) { --animation-order: 1; }
.contact-card:nth-child(2) { --animation-order: 2; }
.contact-card:nth-child(3) { --animation-order: 3; }
.contact-card:nth-child(4) { --animation-order: 4; }

/* Responsive adjustments */
@media (max-width: 768px) {
    .contact-card {
        margin-bottom: 1rem;
    }
    
    .contact-section .section-title {
        font-size: 2rem;
    }
}

/* Animation Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* Project Page */
.project-detail {
    padding: 120px 0 60px 0;
}

.project-detail:not(:first-of-type) {
    padding-top: 60px;
}

.project-image {
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.project-image:hover {
    transform: scale(1.02);
}

.tech-stack {
    margin: 20px 0;
}

.tech-badge {
    background-color: var(--light-blue);
    color: var(--primary-blue);
    padding: 8px 16px;
    border-radius: 20px;
    margin: 5px;
    display: inline-block;
    transition: all 0.3s ease;
}

.tech-badge:hover {
    background-color: var(--primary-blue);
    color: white;
    transform: translateY(-2px);
}

.project-links a {
    margin-right: 15px;
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

.project-links a:hover {
    color: var(--secondary-blue);
}

.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--primary-blue);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
}

.scroll-to-top:hover {
    background-color: var(--secondary-blue);
    color: white;
    transform: translateY(-3px);
}