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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-glass: rgba(255, 255, 255, 0.25);
    --shadow-light: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --shadow-strong: 0 20px 60px 0 rgba(0, 0, 0, 0.1);
    --border-glass: 1px solid rgba(255, 255, 255, 0.18);
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-light: #888888;
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-glass: rgba(255, 255, 255, 0.1);
    --shadow-light: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    --shadow-strong: 0 20px 60px 0 rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] #particles-js {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    transition: var(--transition);
}

/* Particles Background */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: linear-gradient(135deg, #e6eeff 0%, #f0e6ff 100%);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-bottom: var(--border-glass);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .navbar.scrolled {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

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

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

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--bg-glass);
    transform: rotate(180deg);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    z-index: 1;
    background: transparent;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-greeting {
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 400;
    display: block;
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.5s forwards;
}

.hero-name {
    font-size: 4rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.7s forwards;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin: 1rem 0;
    min-height: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.9s forwards;
}

.cursor {
    animation: blink 1s infinite;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin: 2rem 0;
    line-height: 1.8;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1.1s forwards;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1.3s forwards;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-light);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-strong);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: var(--border-glass);
    backdrop-filter: blur(20px);
}

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

/* Profile Card */
.profile-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: var(--border-glass);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    opacity: 0;
    animation: fadeInUp 1s ease-out 1.5s forwards;
    transform: translateY(50px);
}

.profile-avatar {
    text-align: center;
    margin-bottom: 1.5rem;
}

.profile-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto;
    display: block;
    border: 4px solid transparent;
    background: var(--gradient-primary);
    background-clip: padding-box;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.profile-image:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-strong);
}

.avatar-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    color: white;
    font-size: 2.5rem;
    font-weight: 700;
}

.profile-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.profile-info p {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 2rem;
}

.profile-stats {
    display: flex;
    justify-content: space-around;
}

.stat {
    text-align: center;
}

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

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Section Styles */
section {
    padding: 6rem 0;
    position: relative;
    background: var(--bg-primary);
    z-index: 1;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* About Section */
.about {
    background: var(--bg-secondary);
    z-index: 2;
}

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

.about-intro {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: var(--border-glass);
    border-radius: 15px;
    transition: var(--transition);
}

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

.highlight-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-top: 0.5rem;
}

.highlight-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

/* Skills Section */
.skills-section h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.skills-grid {
    display: grid;
    gap: 2rem;
}

.skill-category h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    width: 3px;
    background: var(--gradient-primary);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1.5px;
    border-radius: 2px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background: transparent;
    width: 50%;
    opacity: 0;
    animation-fill-mode: forwards;
}

.timeline-item:nth-child(odd) {
    left: 0;
    animation: slideInLeft 0.8s ease-out forwards;
}

.timeline-item:nth-child(even) {
    left: 50%;
    animation: slideInRight 0.8s ease-out forwards;
}

.timeline-item:nth-child(1) { animation-delay: 0.2s; }
.timeline-item:nth-child(2) { animation-delay: 0.4s; }
.timeline-item:nth-child(3) { animation-delay: 0.6s; }
.timeline-item:nth-child(4) { animation-delay: 0.8s; }
.timeline-item:nth-child(5) { animation-delay: 1.0s; }

.timeline-marker {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    top: 15px;
    z-index: 1;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

.timeline-item:nth-child(odd) .timeline-marker {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-marker {
    left: -10px;
}

.timeline-content {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: var(--border-glass);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
}

.timeline-header {
    margin-bottom: 1rem;
}

.timeline-header h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.timeline-role {
    color: var(--primary-color);
    font-weight: 600;
    display: block;
    margin-bottom: 0.5rem;
}

.timeline-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tag {
    background: var(--gradient-accent);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Achievements Grid */
.achievements {
    background: var(--bg-secondary);
    z-index: 2;
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.achievement-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: var(--border-glass);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(50px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.achievement-card:nth-child(1) { animation-delay: 0.1s; }
.achievement-card:nth-child(2) { animation-delay: 0.2s; }
.achievement-card:nth-child(3) { animation-delay: 0.3s; }
.achievement-card:nth-child(4) { animation-delay: 0.4s; }
.achievement-card:nth-child(5) { animation-delay: 0.5s; }
.achievement-card:nth-child(6) { animation-delay: 0.6s; }

.achievement-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.achievement-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.achievement-card h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.achievement-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: var(--border-glass);
    border-radius: 15px;
    transition: var(--transition);
}

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

.contact-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
    width: 20px;
}

.hobbies-section h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hobbies-section p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hobbies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.hobby-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: var(--border-glass);
    border-radius: 15px;
    transition: var(--transition);
    text-align: center;
}

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

.hobby-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.hobby-item span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    position: relative;
    z-index: 3;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-glass);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        padding: 2rem 0;
        border-top: var(--border-glass);
    }

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

    .hamburger {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

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

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 50px;
        padding-right: 25px;
    }

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

    .timeline-marker {
        left: 10px !important;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .hobbies-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 6rem 1rem 2rem;
    }

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

    .hero-name {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }
}

/* Scroll Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}