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

:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --accent-color: #7209b7;
    --dark-color: #1a1a2e;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --success-color: #4cc9f0;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

.dark-mode {
    --primary-color: #4895ef;
    --secondary-color: #4361ee;
    --accent-color: #7209b7;
    --dark-color: #f8f9fa;
    --light-color: #1a1a2e;
    --gray-color: #adb5bd;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    transition: var(--transition);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }

p {
    color: var(--gray-color);
    margin-bottom: 1rem;
}

.highlight {
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(67, 97, 238, 0.3);
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.dark-mode .navbar {
    background: rgba(26, 26, 46, 0.95);
}

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

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 900;
    text-decoration: none;
    color: var(--dark-color);
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-color);
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--dark-color);
    transition: var(--transition);
}

.theme-toggle:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding-top: 150px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-content {
    animation: fadeInLeft 1s ease;
}

.greeting {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.name {
    font-size: 3.5rem;
    margin-bottom: 10px;
}

.title {
    font-size: 1.8rem;
    color: var(--gray-color);
    margin-bottom: 20px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin: 30px 0;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--light-color);
    color: var(--dark-color);
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
    font-size: 1.2rem;
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.hero-image {
    position: relative;
    animation: fadeInRight 1s ease;
}

.image-container {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}

.image-container img {
    width: 100%;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    box-shadow: var(--shadow);
}

.floating-badge {
    position: absolute;
    background: white;
    padding: 15px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    animation: float 3s ease-in-out infinite;
}

.dark-mode .floating-badge {
    background: var(--secondary-color);
    color: white;
}

.floating-badge.experience {
    top: 20px;
    left: -20px;
    animation-delay: 0.5s;
}

.floating-badge.projects {
    bottom: 20px;
    right: -20px;
    animation-delay: 1s;
}

.floating-badge span {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.dark-mode .floating-badge span {
    color: white;
}

.floating-badge small {
    font-size: 0.8rem;
    color: var(--gray-color);
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.about-details {
    margin: 30px 0;
}

.detail-item {
    display: flex;
    margin-bottom: 15px;
}

.detail-label {
    min-width: 100px;
    font-weight: 600;
    color: var(--dark-color);
}

.detail-value {
    color: var(--gray-color);
}

.detail-value.available {
    color: var(--success-color);
    font-weight: 600;
}

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

.skill-category {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.dark-mode .skill-category {
    background: rgba(255, 255, 255, 0.05);
}

.skill-category:hover {
    transform: translateY(-10px);
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

.skill-item span:first-child {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.skill-bar {
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
    margin: 10px 0;
}

.dark-mode .skill-bar {
    background: rgba(255, 255, 255, 0.1);
}

.skill-level {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
    transition: width 1.5s ease;
}

.skill-percent {
    float: right;
    font-weight: 600;
    color: var(--primary-color);
}

/* Portfolio Section */
.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.portfolio-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.dark-mode .portfolio-item {
    background: rgba(255, 255, 255, 0.05);
}

.portfolio-item:hover {
    transform: translateY(-10px);
}

.portfolio-img {
    height: 250px;
    overflow: hidden;
}

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

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

.portfolio-content {
    padding: 20px;
}

.portfolio-content h3 {
    margin-bottom: 10px;
}

.portfolio-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin: 15px 0;
}

.tag {
    padding: 5px 10px;
    background: var(--light-color);
    color: var(--primary-color);
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.dark-mode .tag {
    background: rgba(255, 255, 255, 0.1);
}

/* Experience Section */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: calc(50% - 30px);
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: calc(50% + 30px);
}

.timeline-date {
    position: absolute;
    top: 0;
    width: 100px;
    padding: 5px 10px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    text-align: center;
    font-weight: 600;
}

.timeline-item:nth-child(odd) .timeline-date {
    right: -120px;
}

.timeline-item:nth-child(even) .timeline-date {
    left: -120px;
}

.timeline-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.dark-mode .timeline-content {
    background: rgba(255, 255, 255, 0.05);
}

.timeline-content h4 {
    color: var(--primary-color);
    margin: 10px 0;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: 60px;
    height: 60px;
    background: rgba(67, 97, 238, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    background: var(--light-color);
    color: var(--dark-color);
}

.dark-mode .contact-form input,
.dark-mode .contact-form textarea {
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 80px 0 20px;
}

.dark-mode .footer {
    background: rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h3,
.footer-newsletter h3 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    display: block;
    margin-bottom: 10px;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.newsletter-form {
    display: flex;
    margin-top: 20px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 30px 0 0 30px;
    outline: none;
}

.newsletter-form button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0 20px;
    border-radius: 0 30px 30px 0;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    color: white;
    font-size: 1.2rem;
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--primary-color);
}

/* Animations */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Responsive Design */
@media (max-width: 992px) {
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2.2rem; }
    
    .hero .container,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        width: calc(100% - 80px);
        left: 80px !important;
    }
    
    .timeline-date {
        left: -120px !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--light-color);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        gap: 30px;
    }
    
    .dark-mode .nav-menu {
        background: var(--dark-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    section {
        padding: 60px 0;
    }
    
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .floating-badge {
        display: none;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}