/* Global Styles */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #333;
    --text-light: #7f8c8d;
    --white: #fff;
    --black: #000;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

section {
    padding: 80px 0;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 15px;
}

p {
    margin-bottom: 15px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    text-transform: capitalize;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    font-size: 16px;
}

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

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-3px);
    box-shadow: var(--box-shadow);
    border-color: #2980b9;
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    margin-left: 15px;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--box-shadow);
}

.btn-small {
    padding: 8px 15px;
    font-size: 14px;
    margin-right: 10px;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
    position: relative;
}

.section-title span {
    color: var(--primary-color);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Header Styles */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--white);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 10px 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 15px;
}

.logo a {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark-color);
}

.logo a span {
    color: var(--primary-color);
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--dark-color);
    font-weight: 600;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

nav ul li a:hover::after {
    width: 100%;
}

nav ul li a.active {
    color: var(--primary-color);
}

.mobile-menu {
    display: none;
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
    color: var(--dark-color);
    background: none;
    border: none;
    outline: none;
    transition: var(--transition);
}

.mobile-menu:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--light-color);
    padding-top: 120px;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    flex: 1;
    padding-right: 30px;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 10px;
}

.hero-content h1 span {
    color: var(--primary-color);
}

.hero-content h2 {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 20px;
    color: var(--text-light);
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    color: var(--text-light);
}

.hero-buttons {
    display: flex;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0);
    }
}

/* About Section */
.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-image {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.about-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin: 30px 0;
}

.info-item {
    display: flex;
}

.info-item span {
    font-weight: 600;
    margin-right: 10px;
    color: var(--dark-color);
    min-width: 80px;
}

.info-item p {
    margin: 0;
    color: var(--text-light);
}

/* Skills Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.skill-category {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
}

.skill-category h3 {
    font-size: 22px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.skill-item {
    margin-bottom: 20px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.skill-info span {
    font-weight: 600;
}

.skill-bar {
    height: 10px;
    background-color: #f1f1f1;
    border-radius: 5px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 5px;
    transition: width 1.5s ease;
}

/* Portfolio Section */
.portfolio-filter {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    margin: 0 10px 10px 0;
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    position: relative;
    height: 300px;
}

.portfolio-image {
    position: relative;
    width: 100%;
    height: 100%;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(52, 152, 219, 0.9);
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    text-align: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.portfolio-overlay p {
    margin-bottom: 20px;
    font-size: 14px;
}

.portfolio-links {
    display: flex;
}

/* Contact Section */
.contact-container {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

.contact-info p {
    margin-bottom: 30px;
    color: var(--text-light);
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.info-item i {
    font-size: 24px;
    color: var(--primary-color);
    margin-right: 20px;
    margin-top: 5px;
}

.info-content h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.social-links {
    display: flex;
    margin-top: 30px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    margin-right: 15px;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--dark-color);
    transform: translateY(-5px);
}

.contact-form {
    flex: 1;
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-message {
    margin-top: 15px;
    padding: 12px;
    border-radius: 5px;
    display: none;
    transition: all 0.3s ease;
    animation: fadeIn 0.3s ease-out;
}

.form-message.success {
    display: block;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    display: block;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.form-message::before {
    font-family: "Font Awesome 5 Free";
    margin-right: 10px;
    font-weight: 900;
}

.form-message.success::before {
    content: "\f058";
}

.form-message.error::before {
    content: "\f06a";
}

.close-message {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.2em;
    cursor: pointer;
    float: right;
    padding: 0;
    margin-left: 10px;
    line-height: 1;
}

.close-message:hover {
    opacity: 0.8;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 70px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.footer-logo a {
    color: var(--white);
    font-size: 24px;
    font-weight: 700;
}

.footer-logo a span {
    color: var(--primary-color);
}

.footer-logo p {
    margin-top: 15px;
    color: #bdc3c7;
}

.footer-links h4 {
    font-size: 20px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: #bdc3c7;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin: 0;
    color: #bdc3c7;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 50px;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .contact-container {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    nav ul {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        transition: var(--transition);
        padding: 30px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        z-index: 1000;
    }
    
    nav ul.active {
        left: 0;
    }
    
    nav ul li {
        margin: 15px 0;
        width: 100%;
    }
    
    nav ul li a {
        font-size: 18px;
        padding: 10px 0;
        display: block;
        border-bottom: 1px solid rgba(0,0,0,0.05);
    }
    
    .mobile-menu {
        display: block;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-content h2 {
        font-size: 20px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-buttons .btn {
        width: 100%;
        margin-left: 0;
    }
}

@media (max-width: 576px) {
    .about-info {
        grid-template-columns: 1fr;
    }
    
    .filter-btn {
        margin-bottom: 10px;
    }
    
    .portfolio-item {
        height: 250px;
    }
}