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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Color Variables */
:root {
    --primary-color: #011627;
    --primary-dark: #000b14;
    --primary-light: #1a2b3d;
    --secondary-color: #007EA7;
    --accent-color: #F1FFFA;
    --text-dark: #011627;
    --text-light: #C6C5B9;
    --bg-light: #F1FFFA;
    --bg-white: #ffffff;
    --border-color: #C6C5B9;
    --success-color: #007EA7;
    --warning-color: #007EA7;
    --error-color: #011627;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
}

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

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

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.cv-btn {
    background: var(--primary-color);
    color: white !important;
    padding: 10px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

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

.cv-btn::after {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

.nav-toggle.active .bar:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .bar:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #011627 0%, #007EA7 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.name-highlight {

    background: linear-gradient(45deg, #F1FFFA, #C6C5B9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nickname {
    color: var(--accent-color);
    font-style: italic;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: white;
    transform: translateY(-2px);
    color: var(--secondary-color);
    box-shadow: 0 10px 25px rgba(80, 78, 225, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.3s ease;
    max-width: 400px;
    margin: 0 auto;

}

.profile-card:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.profile-photo {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 50%;
    object-fit: cover;
    aspect-ratio: 1;
    border: 4px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.profile-placeholder i {
    font-size: 4rem;
    margin-bottom: 0.5rem;
    opacity: 0.7;
}

.card-stats {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.stat {
    text-align: center;
    color: white;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--bg-light);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-description {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 3rem;
    text-align: center;
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.highlight-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-5px);
}

.highlight-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.highlight-item h3 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.highlight-item p {
    color: var(--text-light);
}

/* Skills Section */
.skills {
    padding: 100px 0;
    background: white;
}

.skills-content {
    max-width: 900px;
    margin: 0 auto;
}

.skills-category {
    margin-bottom: 4rem;
}

.skills-category h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.skill-item {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.skill-item.featured {
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.skill-item:hover {
    transform: translateY(-5px);
}

.skill-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: white;
    font-size: 1.5rem;
}

.skill-item h4 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.skill-bar {
    background: #e5e7eb;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 1rem;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 2s ease;
}

.tools-section {
    text-align: center;
}

.tools-section h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
}

.tools-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    min-width: 120px;
    transition: transform 0.3s ease;
}

.tool-item:hover {
    transform: translateY(-5px);
}

.tool-item i {
    font-size: 2.5rem;
}

.tool-item.excel i {
    color: #217346;
}

.tool-item.powerbi i {
    color: #f2c811;
}

.tool-item.tableau i {
    color: #e97627;
}

.tool-item.metabase i {
    color: #509ee3;
}

.tool-item.sql i {
    color: #336791;
}

.tool-item.python i {
    color: #3776ab;
}

.tool-item span {
    font-weight: 600;
    color: var(--text-dark);
}

/* Projects Section */
.projects {
    padding: 100px 0;
    background: var(--bg-light);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.project-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.project-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.project-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

.project-content {
    padding: 2rem;
}

.project-description {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tool-tag {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
}

.tool-tag.powerbi {
    background: #f2c811;
}

.tool-tag.sql {
    background: #336791;
}

.tool-tag.excel {
    background: #217346;
}

.tool-tag.tableau {
    background: #e97627;
}

.tool-tag.metabase {
    background: #509ee3;
}

.project-insights h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.project-insights ul {
    list-style: none;
    padding: 0;
}

.project-insights li {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.project-insights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.project-footer {
    padding: 1rem 2rem 2rem;
}

.btn-view-project {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-view-project:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Resume Section */
.resume {
    padding: 100px 0;

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

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

.resume-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.resume-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.btn-download:hover {
    background: white;
}

.resume-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cv-preview-title {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    text-align: center;
}

.cv-preview {
    width: 300px;
    height: 400px;
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    font-size: 0.8rem;
    overflow: hidden;
}

.cv-preview:hover {
    transform: scale(1.05);
}

.cv-header {
    text-align: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #ddd;
}

.cv-header h4 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1rem;
}

.cv-header p {
    margin: 0.2rem 0 0 0;
    color: var(--secondary-color);
    font-size: 0.8rem;
}

.cv-section {
    margin-bottom: 1rem;
}

.cv-section h5 {
    margin: 0 0 0.5rem 0;
    color: var(--primary-color);
    font-size: 0.9rem;
    border-bottom: 1px solid #eee;
    padding-bottom: 0.2rem;
}

.cv-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.3rem;
}

.cv-item strong {
    color: var(--text-dark);
    font-size: 0.75rem;
}

.cv-item span {
    color: var(--text-light);
    font-size: 0.7rem;
}

.cv-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.cv-skills span {
    background: var(--bg-light);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-size: 0.65rem;
    color: var(--text-dark);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.contact-details h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-details a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.contact-form {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: white;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: 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;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
/* Tablet Large (1024px - 1199px) */
@media (max-width: 1199px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .profile-photo {
        width: 300px;
        max-width: 100%;
    }
}

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .resume-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .profile-photo {
        width: 250px;
        max-width: 100%;
    }
}

/* Mobile Large (481px - 767px) */
@media (max-width: 767px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 1rem;
        height: calc(100vh - 70px);
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }
    
    .nav-container {
        padding: 0 15px;
    }

    .hero {
        padding: 90px 0 50px;
    }

    .hero-title {
        font-size: 2.2rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }

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

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

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

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

    .card-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .section-subtitle {
        font-size: 1.1rem;
    }
    
    .profile-photo {
        width: 200px;
        max-width: 100%;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* Mobile Small (320px - 480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .nav-container {
        padding: 0 10px;
    }

    .hero {
        padding: 80px 0 30px;
    }

    .hero-title {
        font-size: 1.8rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }

    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }

    .profile-photo {
        width: 180px;
        max-width: 100%;
    }

    .project-card {
        margin: 0 5px;
    }
    
    .project-header,
    .project-content {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .highlight-item {
        padding: 1.5rem;
    }
    
    .skill-item {
        padding: 1.5rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .tool-item {
        padding: 1rem;
        min-width: auto;
    }
    
    .nav-logo h2 {
        font-size: 1.5rem;
    }
    
    .social-links a {
        width: 45px;
        height: 45px;
    }
}

/* Loading Animation */
.loading {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 70px;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    z-index: 999;
    transition: width 0.1s ease;
}