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

:root {
    --primary-color: #3eb489;
    --secondary-color: #2c3e50;
    --text-color: #333;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body.loading {
    overflow: hidden;
}

.main-content {
    transition: transform 0.8s ease, opacity 0.8s ease;
}

body.loading .main-content {
    transform: translateY(50px);
    opacity: 0;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.preloader.fade-out {
    opacity: 0;
    transform: translateY(-20px);
}

.loader-logo {
    position: relative;
    width: 150px;
    height: 150px;
}

.loader-crescent {
    position: absolute;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: var(--primary-color);
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
    opacity: 0.8;
    transform-origin: center;
    animation: rotateCrescent 1.2s ease-in-out forwards;
}

.loader-circle {
    position: absolute;
    width: 120px;
    height: 120px;
    background: var(--secondary-color);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.loader-circle span {
    color: var(--white);
    font-size: 4rem;
    font-weight: bold;
}

@keyframes rotateCrescent {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(180deg);
    }
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.2rem;
}

.logo-wrapper {
    position: relative;
    width: 40px;
    height: 40px;
}

.logo-crescent {
    position: absolute;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
    opacity: 0.8;
}

.logo-circle {
    position: absolute;
    width: 32px;
    height: 32px;
    background: var(--secondary-color);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: bold;
    font-size: 1rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

.download-cv {
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.download-cv:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 150px 20px 50px;
    background: linear-gradient(135deg, rgba(62, 180, 137, 0.1) 0%, rgba(245, 247, 250, 0.95) 30%, rgba(195, 207, 226, 0.9) 70%, rgba(62, 180, 137, 0.15) 100%);
    backdrop-filter: blur(10px);
}

.social-links {
    position: fixed;
    left: 30px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 20px;
    z-index: 100;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: 50%;
    color: var(--text-color);
    font-size: 1.2rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.social-links a:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateX(5px);
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 10;
}

body.loading .hero-image,
body.loading .hero-name,
body.loading .hero-title,
body.loading .cta-text {
    opacity: 0;
    transform: translateY(30px);
}

.hero-image,
.hero-name,
.hero-title,
.cta-text {
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.hero-image {
    transition-delay: 0.2s;
}

.hero-name {
    transition-delay: 0.4s;
}

.hero-title {
    transition-delay: 0.6s;
}

.cta-text {
    transition-delay: 0.8s;
}

.hero-image {
    position: relative;
    margin: 0 auto 2rem;
    width: 300px;
    height: 300px;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 8rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.image-placeholder:has(img) .fa-user {
    display: none;
}

.circle-decoration {
    position: absolute;
    width: 340px;
    height: 340px;
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    animation: circleRotate 8s linear infinite, circlePulse 3s ease-in-out infinite;
}

@keyframes circleRotate {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

@keyframes circlePulse {
    0%, 100% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.05);
    }
}

.hero-name {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.hero-title {
    font-size: 1.2rem;
    color: #666;
    letter-spacing: 2px;
    margin-bottom: 2rem;
}

.cta-text {
    margin-top: 2rem;
}

.cta-text a {
    text-decoration: none;
}

.cta-text span {
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    display: inline-block;
    transition: var(--transition);
}

.cta-text span:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(62, 180, 137, 0.4);
}

/* Company Logos */
.company-logos {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 3rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 1000px;
}

.logo-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #666;
    font-weight: 500;
    font-size: 1.1rem;
    opacity: 0.7;
    transition: var(--transition);
}

.logo-item i {
    font-size: 2rem;
}

.logo-item:hover {
    opacity: 1;
    color: var(--primary-color);
}

/* Section Styles */
section {
    padding: 80px 20px;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--secondary-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    margin: 1rem auto;
    border-radius: 2px;
}

/* About Section */
.about {
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #555;
    line-height: 1.8;
}

.skills {
    margin-top: 2rem;
}

.skills h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    background: var(--light-gray);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-color);
    border: 2px solid transparent;
    transition: var(--transition);
}

.skill-tag:hover {
    border-color: var(--primary-color);
    background: var(--white);
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: 10px;
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #666;
    font-weight: 500;
}

/* Experience Section */
.experience {
    background: var(--light-gray);
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    padding-left: 50px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -56px;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid var(--white);
}

.timeline-date {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.timeline-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.timeline-content h3 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 500;
}

.timeline-content p {
    color: #555;
    margin-bottom: 1rem;
}

.timeline-content ul {
    list-style: none;
    padding: 0;
}

.timeline-content ul li {
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    color: #666;
}

.timeline-content ul li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Projects Section */
.projects {
    background: var(--white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    text-decoration: none;
    display: block;
}

.project-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.project-image {
    height: 250px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 4rem;
    overflow: hidden;
    position: relative;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.project-content p {
    color: #666;
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.project-tags span {
    background: var(--light-gray);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
    color: var(--text-color);
}

.project-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    font-size: 0.9rem;
}

.project-link:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.project-link i {
    font-size: 0.85rem;
}

/* Contact Section */
.contact {
    background: var(--light-gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-intro {
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.contact-item h4 {
    color: var(--secondary-color);
    margin-bottom: 0.3rem;
}

.contact-item p {
    color: #666;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.submit-btn {
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.submit-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 2rem 0;
}

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

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    transition: var(--transition);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hero-name {
        font-size: 2.5rem;
    }

    .hero-image {
        width: 200px;
        height: 200px;
    }

    .image-placeholder {
        width: 200px;
        height: 200px;
        font-size: 5rem;
    }

    .circle-decoration {
        width: 280px;
        height: 280px;
    }

    .company-logos {
        gap: 1.5rem;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .social-links {
        left: 10px;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline-item::before {
        left: -36px;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-name {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }
}