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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --accent-blue: #4facfe;
    --accent-cyan: #00f2fe;
    --accent-orange: #fa709a;
    --accent-yellow: #fee140;
    --accent-green: #30cfd0;
    --accent-pink: #f093fb;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-colorful: 0 10px 30px rgba(102, 126, 234, 0.3);
}

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

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

/* Navigation */
.navbar {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textGradient 3s ease infinite;
    background-size: 200% 200%;
}

@keyframes textGradient {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #4facfe);
    transition: width 0.3s;
    border-radius: 2px;
}

.nav-menu a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
    color: white;
    padding: 5rem 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

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

.image-border-wrapper {
    position: relative;
    width: 210px;
    height: 210px;
    border-radius: 50%;
    padding: 5px;
    background: linear-gradient(45deg, #667eea, #764ba2, #f093fb, #4facfe, #00f2fe, #667eea);
    background-size: 400% 400%;
    animation: borderRotate 3s linear infinite;
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes borderRotate {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s;
    position: relative;
    z-index: 1;
}

.profile-image:hover {
    transform: scale(1.05);
}

.hero-name {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.hero-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

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

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.5);
    background: linear-gradient(135deg, #ffffff, #e0e0e0);
}

.btn-secondary {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
    color: white;
    border: 2px solid white;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.8));
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.4);
}

/* Section Styles */
section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb, #4facfe, #00f2fe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: textGradient 4s ease infinite;
    position: relative;
    padding-bottom: 1rem;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #4facfe, #00f2fe, #667eea);
    background-size: 200% 100%;
    animation: gradientShift 3s ease infinite;
    border-radius: 2px;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.5);
}

/* About Section */
.about {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* Education & Experience Timeline */
.education {
    background: linear-gradient(135deg, #ffeaa7 0%, #fab1a0 50%, #fd79a8 100%);
    position: relative;
}

.experience {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 50%, #d299c2 100%);
    position: relative;
}

.education-timeline,
.experience-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    padding-left: 2rem;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #667eea, #764ba2, #f093fb, #4facfe, #00f2fe);
    background-size: 100% 400%;
    animation: gradientShift 4s ease infinite;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #fa709a, #fee140, #30cfd0, #4facfe);
    background-size: 100% 400%;
    animation: gradientShift 4s ease infinite;
    box-shadow: 0 0 10px rgba(250, 112, 154, 0.5);
}

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

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 0.5rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    border: 3px solid var(--bg-white);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3), 0 0 20px rgba(102, 126, 234, 0.5);
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3), 0 0 20px rgba(102, 126, 234, 0.5);
    }
    50% {
        transform: scale(1.2);
        box-shadow: 0 0 0 5px rgba(102, 126, 234, 0.5), 0 0 30px rgba(102, 126, 234, 0.8);
    }
}

.timeline-year {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.timeline-subtitle {
    color: rgba(0, 0, 0, 0.7);
    margin-bottom: 1rem;
    font-style: italic;
    font-weight: 600;
}

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

.timeline-content li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: rgba(0, 0, 0, 0.8);
    font-weight: 500;
}

.timeline-content li::before {
    content: '▸';
    position: absolute;
    left: 0;
    background: linear-gradient(135deg, #667eea, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
    font-size: 1.2rem;
}

/* Skills Section */
.skills {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%);
    background-size: 400% 400%;
    animation: gradientShift 10s ease infinite;
    color: white;
    position: relative;
}

.skills::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.skills-content {
    max-width: 1000px;
    margin: 0 auto;
}

.skills-category {
    margin-bottom: 3rem;
}

.skills-category h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
}

.skill-item {
    background: rgba(255, 255, 255, 0.95);
    padding: 1.5rem;
    border-radius: 0.5rem;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.skill-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.2), transparent);
    transition: left 0.5s;
}

.skill-item:hover::before {
    left: 100%;
}

.skill-item:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    border-color: rgba(102, 126, 234, 0.5);
}

.skill-item i {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform 0.3s;
}

.skill-item:hover i {
    transform: scale(1.2) rotate(5deg);
}

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

.soft-skills,
.languages {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.soft-skill-tag {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s;
    position: relative;
    z-index: 1;
}

.soft-skill-tag:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
    background: linear-gradient(135deg, #764ba2, #f093fb);
}

.language-tag {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
    transition: all 0.3s;
    position: relative;
    z-index: 1;
}

.language-tag:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 20px rgba(79, 172, 254, 0.6);
    background: linear-gradient(135deg, #00f2fe, #30cfd0);
}

.specialization {
    font-size: 1.2rem;
    font-weight: 700;
    padding: 1rem 2rem;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 0.5rem;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    transition: all 0.3s;
    border: 3px solid;
    border-image: linear-gradient(135deg, #667eea, #764ba2, #f093fb) 1;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-color: rgba(255, 255, 255, 0.95);
}

.specialization:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 50%, #30cfd0 100%);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 15s linear infinite;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 0.5rem;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
    border: 2px solid transparent;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 0.5rem;
    padding: 2px;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb, #4facfe);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s;
}

.contact-item:hover::before {
    opacity: 1;
}

.contact-item:hover {
    transform: translateX(15px) translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.contact-item i {
    font-size: 1.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    width: 30px;
    text-align: center;
    transition: transform 0.3s;
}

.contact-item:hover i {
    transform: scale(1.3) rotate(5deg);
}

.contact-item a {
    text-decoration: none;
    color: var(--text-dark);
    font-size: 1.1rem;
    transition: color 0.3s;
}

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

.contact-item span {
    font-size: 1.1rem;
    color: var(--text-dark);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    color: white;
    text-align: center;
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
}

.footer p {
    position: relative;
    z-index: 1;
}

/* Mobile Responsive Styles */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
        gap: 1rem;
    }

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

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

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

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

    .image-border-wrapper {
        width: 160px;
        height: 160px;
        margin: 0 auto 2rem;
    }

    .profile-image {
        width: 150px;
        height: 150px;
    }

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

    .education-timeline,
    .experience-timeline {
        padding-left: 1.5rem;
    }

    .timeline-item {
        padding-left: 2rem;
    }

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 1rem;
    }

    .skill-item {
        padding: 1rem;
    }

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

    .hero-buttons {
        justify-content: center;
    }

    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }

    section {
        padding: 3rem 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 3rem 0;
        min-height: 70vh;
    }

    .hero-name {
        font-size: 1.75rem;
    }

    .hero-title {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .timeline-content h3 {
        font-size: 1.2rem;
    }

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

    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

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

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.timeline-item,
.skill-item,
.contact-item {
    animation: fadeIn 0.6s ease-out;
}