/* Basic Reset */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Poppins', sans-serif; }

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-dark: #2d3748;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body { 
    line-height: 1.6; 
    color: var(--text-dark); 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

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

.nav-logo {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

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

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

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

/* Header */
header { 
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white; 
    padding: 120px 20px 80px; 
    text-align: center; 
    position: relative;
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-particles::before,
.hero-particles::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.hero-particles::before {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.hero-particles::after {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 10%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 50px;
    position: relative;
    z-index: 1;
}

.profile-img-container {
    position: relative;
    width: 180px;
    height: 180px;
    flex-shrink: 0;
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

.profile-img-border {
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--accent-color), var(--primary-color));
    z-index: -1;
    animation: rotate 3s linear infinite;
}

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

.profile-img-container:hover .profile-img {
    transform: scale(1.05);
    border-color: rgba(255, 255, 255, 0.4);
}

.hero-text {
    text-align: left;
    max-width: 600px;
}

header h1 { 
    font-size: 3em; 
    margin-bottom: 15px; 
    font-weight: 700;
    background: linear-gradient(45deg, #ffffff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header p { 
    font-size: 1.3em; 
    margin-bottom: 15px; 
    opacity: 0.9;
}

header .btn { 
    background: white; 
    color: var(--primary-color); 
    padding: 12px 30px; 
    margin: 0 10px 10px 0; 
    text-decoration: none; 
    border-radius: 50px; 
    font-weight: 600;
    display: inline-block;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

header .btn:hover { 
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
}

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

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

.social-links {
    margin-top: 20px;
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

/* Sections */
section { 
    padding: 80px 20px; 
    margin: 0 auto; 
    max-width: 1200px;
    background: var(--white);
    margin: 40px auto;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.section-title {
    font-size: 2.5em; 
    margin-bottom: 40px; 
    text-align: center;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.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;
}

/* About Section */
#about {
    margin-top: 80px;
}

#about p {
    font-size: 1.1em;
    margin-bottom: 25px;
    color: var(--text-light);
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

#about ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

#about li {
    background: linear-gradient(135deg, #f6f8fb 0%, #ffffff 100%);
    padding: 15px 25px;
    border-radius: 50px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

#about li::before {
    content: '✓';
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

#about li:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.skill-card {
    background: linear-gradient(135deg, #f6f8fb 0%, #ffffff 100%);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
}

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

.skill-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    margin-bottom: 20px;
}

.skill-card h3 {
    font-size: 1.3em;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.skill-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    width: 0;
    transition: width 2s ease-in-out;
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.project-card {
    background: linear-gradient(135deg, #f6f8fb 0%, #ffffff 100%);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(45deg, var(--accent-color), var(--primary-color));
}

.project-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    cursor: pointer;
}

.project-card.expanded {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

/* Project Slider */
.project-slider {
    position: relative;
    width: 100%;
    height: 200px;
    margin-bottom: 20px;
    border-radius: 12px;
    overflow: hidden;
    background: #f8f9fa;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.slide-image.active {
    opacity: 1;
    position: relative;
}

.slide-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    color: var(--text-light);
    text-align: center;
    opacity: 1;
    position: relative;
}

.slide-placeholder i {
    font-size: 48px;
    margin-bottom: 10px;
    color: var(--primary-color);
    opacity: 0.6;
}

.slide-placeholder p {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
    color: var(--text-dark);
}

.slide-placeholder small {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 5px;
    font-style: italic;
}

.slider-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 10px;
    pointer-events: none;
}

.slider-btn {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    pointer-events: all;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    color: var(--primary-color);
}

.slider-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.slider-btn.prev {
    margin-left: 10px;
}

.slider-btn.next {
    margin-right: 10px;
}

.project-details {
    list-style: none;
    padding: 0;
    margin: 15px 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, margin 0.3s ease-out;
}

.project-details[style*="block"] {
    max-height: 500px;
    transition: max-height 0.5s ease-in, margin 0.3s ease-in;
}

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

.project-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--accent-color), var(--primary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    margin-bottom: 20px;
}

.project-card h3 {
    font-size: 1.3em;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.project-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.project-details {
    list-style: none;
    padding: 0;
    margin: 15px 0;
}

.project-details li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
    color: var(--text-light);
    font-size: 0.95em;
    line-height: 1.5;
}

.project-details li::before {
    content: '▸';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2em;
}

.project-details li:hover {
    color: var(--text-dark);
    transform: translateX(5px);
    transition: var(--transition);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.project-tech span {
    background: linear-gradient(45deg, #e6f2ff, #f0f8ff);
    color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 600;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.github-link {
    text-align: center;
    margin-top: 40px;
}

.github-link p {
    font-size: 1.1em;
    color: var(--text-light);
}

.github-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.github-link a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Experience */
#experience {
    background: linear-gradient(135deg, #f6f8fb 0%, #ffffff 100%);
}

#experience p {
    font-size: 1.1em;
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.8;
}

#experience strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Contact */
#contact {
    text-align: center;
}

#contact h2 {
    margin-bottom: 40px;
}

#contact p {
    font-size: 1.1em;
    margin-bottom: 15px;
    color: var(--text-light);
}

#contact a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

#contact a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Footer */
footer { 
    text-align: center; 
    padding: 30px; 
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white; 
    margin-top: 60px;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
}

.fade-in-delay {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease 0.2s forwards;
}

.fade-in-delay-2 {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease 0.4s forwards;
}

.fade-in-delay-3 {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease 0.6s forwards;
}

.fade-in-delay-4 {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease 0.8s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .hero-text {
        text-align: center;
    }

    .profile-img-container {
        width: 150px;
        height: 150px;
    }

    header h1 {
        font-size: 2.2em;
    }

    header p {
        font-size: 1.1em;
    }

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

    section {
        margin: 20px;
        padding: 40px 20px;
    }

    #about ul {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .profile-img-container {
        width: 120px;
        height: 120px;
    }

    header h1 {
        font-size: 1.8em;
    }

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

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

    header .btn {
        margin: 5px 0;
        width: 200px;
    }
}