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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --primary-glow: rgba(37, 99, 235, 0.1);
    --black: #000000;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --tailwind-color: #374151;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Typography */
    --font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

.dark-mode {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --primary-glow: rgba(59, 130, 246, 0.15);
    --black: #ffffff;
    --white: #111827;
    --gray-50: #1f2937;
    --gray-100: #374151;
    --gray-200: #4b5563;
    --gray-300: #6b7280;
    --gray-400: #9ca3af;
    --gray-500: #d1d5db;
    --gray-600: #e5e7eb;
    --gray-700: #f3f4f6;
    --gray-800: #f9fafb;
    --gray-900: #ffffff;
    --tailwind-color: #FFFFFF;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    transition: background-color var(--transition), color var(--transition);
    overflow-x: hidden;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

.dark-mode h1,
.dark-mode h2,
.dark-mode h3,
.dark-mode h4,
.dark-mode h5,
.dark-mode h6 {
    color: var(--black);
}

h1 {
    font-size: var(--font-size-5xl);
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark-mode h1 {
    background: linear-gradient(135deg, var(--white) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

p {
    margin-bottom: var(--space-lg);
    color: var(--gray-600);
}

.dark-mode p {
    color: var(--gray-500);
}

/* Section Styling */
.section {
    padding: var(--space-3xl) 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--transition), transform 0.8s var(--transition);
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-lg);
    color: var(--gray-900);
    position: relative;
    display: inline-block;
}

.dark-mode .section-title {
    color: var(--black);
}

.section-line {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    margin: 0 auto;
    border-radius: var(--radius-full);
    position: relative;
    overflow: hidden;
}

.section-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    100% {
        left: 100%;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
    line-height: 1;
    height: 48px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--gray-300);
}

.dark-mode .btn-outline {
    border-color: var(--gray-600);
}

.btn-outline:hover {
    border-color: var(--primary);
    background-color: var(--primary-glow);
    transform: translateY(-2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition);
}

.dark-mode .navbar {
    background-color: rgba(17, 24, 39, 0.95);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
}

.navbar.scrolled {
    background-color: var(--white);
    box-shadow: var(--shadow-lg);
}

.dark-mode .navbar.scrolled {
    background-color: var(--gray-900);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    cursor: pointer;
}

.logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary);
}

.logo-dot {
    width: 8px;
    height: 8px;
    background-color: var(--primary);
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

.logo-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-900);
    margin-left: var(--space-xs);
}

.dark-mode .logo-name {
    color: var(--black);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    font-size: var(--font-size-sm);
    padding: var(--space-sm) 0;
    position: relative;
    transition: color var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dark-mode .nav-link {
    color: var(--gray-400);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    border-radius: var(--radius-full);
    transition: all var(--transition);
    transform: translateX(-50%);
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background-color: var(--gray-100);
    border: none;
    color: var(--gray-600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-mode .theme-toggle {
    background-color: var(--gray-800);
    color: var(--gray-300);
}

.theme-toggle:hover {
    background-color: var(--gray-200);
    color: var(--primary);
    transform: rotate(30deg);
}

.dark-mode .theme-toggle:hover {
    background-color: var(--gray-700);
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition);
    transform-origin: left center;
}

.dark-mode .hamburger span {
    background-color: var(--gray-300);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translateY(-2px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(2px);
}

/* Hero Section */
.hero {
    padding: 160px 0 var(--space-3xl);
    background-color: var(--white);
    position: relative;
    overflow: hidden;
}

.dark-mode .hero {
    background-color: var(--white);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    animation: fadeInUp 1s ease 0.2s both;
}

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

.greeting {
    font-size: var(--font-size-lg);
    color: var(--primary);
    margin-bottom: var(--space-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--space-sm);
    line-height: 1.1;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    color: var(--gray-600);
    margin-bottom: var(--space-lg);
    min-height: 2rem;
    animation: fadeInUp 1s ease 0.6s both;
}

.dark-mode .hero-subtitle {
    color: var(--gray-500);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: var(--space-xl);
    max-width: 500px;
    line-height: 1.7;
    animation: fadeInUp 1s ease 0.8s both;
}

.dark-mode .hero-description {
    color: var(--gray-500);
}

.hero-buttons {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 1s ease 1s both;
}

.hero-social {
    display: flex;
    gap: var(--space-md);
    animation: fadeInUp 1s ease 1.2s both;
}

.social-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background-color: var(--gray-100);
    color: var(--gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-mode .social-icon {
    background-color: var(--gray-800);
    color: var(--gray-400);
}

.social-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.social-icon:hover::before {
    left: 100%;
}

.social-icon:hover {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 1s ease 0.5s both;
}

.image-wrapper {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    overflow: hidden;
    border: 8px solid transparent;
    background: linear-gradient(45deg, var(--primary), var(--primary-light)) border-box;
    box-shadow: var(--shadow-2xl);
    transition: all var(--transition-slow);
    position: relative;
}

.image-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        opacity: 0.5;
        transform: scale(0.95);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.image-wrapper:hover {
    transform: scale(1.05) rotate(5deg);
    box-shadow: var(--shadow-2xl), 0 0 50px var(--primary-glow);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.image-wrapper:hover .profile-image {
    transform: scale(1.1);
}

/* About Section */
.about-main {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.about-text-main h3 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-lg);
    color: var(--gray-900);
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark-mode .about-text-main h3 {
    background: linear-gradient(135deg, var(--white) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-text-main p {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.about-text-main p:last-child {
    margin-bottom: 0;
}

.about-details-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-3xl);
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background-color: var(--gray-50);
    border-radius: var(--radius-xl);
    transition: all var(--transition);
    border-left: 4px solid var(--primary);
    position: relative;
    overflow: hidden;
}

.dark-mode .detail-item {
    background-color: var(--gray-100);
}

.detail-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.detail-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

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

.detail-item i {
    font-size: var(--font-size-xl);
    color: var(--primary);
    width: 24px;
    text-align: center;
    transition: transform var(--transition);
}

.detail-item:hover i {
    transform: scale(1.2);
}

.detail-item div {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.detail-label {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    font-size: var(--font-size-base);
    color: var(--gray-800);
    font-weight: 500;
}

.dark-mode .detail-value {
    color: var(--gray-700);
}

.about-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: var(--space-2xl);
    border-radius: var(--radius-2xl);
    color: var(--white);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.about-cta::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 20s linear infinite;
}

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

.about-cta h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-md);
    color: var(--white);
    position: relative;
    z-index: 1;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    position: relative;
    z-index: 1;
}

.about-cta .btn-primary {
    background-color: var(--white);
    color: var(--primary);
    border: none;
}

.about-cta .btn-primary:hover {
    background-color: var(--gray-100);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.about-cta .btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

/* Projects Section */
.projects {
    background-color: var(--gray-50);
}

.dark-mode .projects {
    background-color: var(--gray-100);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-2xl);
}

.project-card {
    background-color: var(--white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition);
    position: relative;
    opacity: 0;
    transform: translateY(30px);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.dark-mode .project-card {
    background-color: var(--white);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.project-image {
    height: 240px;
    overflow: hidden;
    position: relative;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

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

.project-content {
    padding: var(--space-2xl);
    position: relative;
}

.project-content h3 {
    margin-bottom: var(--space-md);
    color: var(--gray-900);
    font-size: var(--font-size-xl);
}

.dark-mode .project-content h3 {
    color: var(--black);
}

.project-content p {
    flex: 1;
    margin-bottom: var(--space-xl);
    color: var(--gray-600);
    line-height: 1.7;
}

.dark-mode .project-content p {
    color: var(--gray-500);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.project-tech span {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background-color: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition);
}

.dark-mode .project-tech span {
    background-color: var(--gray-800);
    color: var(--gray-300);
}

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

.project-tech span i {
    font-size: var(--font-size-sm);
}

/* Skills Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-2xl);
}

.skill-category {
    background-color: var(--white);
    padding: var(--space-2xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.skill-category.visible {
    opacity: 1;
    transform: translateY(0);
}

.dark-mode .skill-category {
    background-color: var(--white);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.category-header i {
    font-size: var(--font-size-2xl);
    color: var(--primary);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-glow);
    border-radius: var(--radius-full);
    transition: all var(--transition);
}

.category-header h3 {
    font-size: var(--font-size-xl);
    margin: 0;
    color: var(--gray-900);
}

.dark-mode .category-header h3 {
    color: var(--black);
}

.skill-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-lg);
}

.skill-item {
    padding: var(--space-lg);
    background-color: var(--gray-50);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-mode .skill-item {
    background-color: var(--gray-100);
}

.skill-item:hover {
    background-color: var(--primary-glow);
    transform: translateY(-5px) scale(1.05);
    box-shadow: var(--shadow-md);
}

.skill-item i {
    font-size: var(--font-size-2xl);
    color: var(--gray-700);
    transition: all var(--transition);
}

.dark-mode .skill-item i {
    color: var(--gray-600);
}

.skill-item:hover i {
    color: var(--primary);
    transform: scale(1.2);
}

.tailwind-icon {
    width: 24px;
    height: 24px;
    fill: var(--gray-700);
    transition: all var(--transition);
}

.dark-mode .tailwind-icon {
    fill: var(--gray-600);
}

.skill-item:hover .tailwind-icon {
    fill: var(--primary);
    transform: scale(1.2);
}

.skill-item span {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.dark-mode .skill-item span {
    color: var(--gray-600);
}

/* Certificates Section */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-2xl);
}

.certificate-card {
    display: flex;
    gap: var(--space-xl);
    padding: var(--space-2xl);
    background-color: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.certificate-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.dark-mode .certificate-card {
    background-color: var(--white);
}

.certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.certificate-icon {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.certificate-card:hover .certificate-icon {
    transform: rotate(15deg) scale(1.1);
}

.certificate-icon i {
    font-size: var(--font-size-2xl);
    color: var(--white);
}

.certificate-content {
    flex: 1;
}

.certificate-content h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-sm);
    color: var(--gray-900);
}

.dark-mode .certificate-content h3 {
    color: var(--black);
}

.certificate-issuer {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--space-xs);
    font-size: var(--font-size-sm);
}

.certificate-date {
    color: var(--gray-500);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-lg);
}

.dark-mode .certificate-date {
    color: var(--gray-400);
}

.certificate-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all var(--transition);
    position: relative;
    padding: var(--space-sm) 0;
}

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

.certificate-link:hover {
    gap: var(--space-md);
    color: var(--primary-dark);
}

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

/* Contact Section */
.contact {
    background-color: var(--gray-50);
}

.dark-mode .contact {
    background-color: var(--gray-100);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    max-width: 900px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background-color: var(--white);
    border-radius: var(--radius-2xl);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-mode .contact-item {
    background-color: var(--white);
}

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

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition);
}

.contact-item:hover .contact-icon {
    transform: rotate(15deg) scale(1.1);
}

.contact-icon i {
    font-size: var(--font-size-xl);
    color: var(--white);
}

.contact-item h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-xs);
    color: var(--gray-900);
}

.dark-mode .contact-item h4 {
    color: var(--black);
}

.contact-item p {
    margin: 0;
    color: var(--gray-600);
    font-size: var(--font-size-base);
}

.dark-mode .contact-item p {
    color: var(--gray-500);
}

.contact-social {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    padding: var(--space-2xl);
    border-radius: var(--radius-2xl);
    color: var(--white);
}

.dark-mode .contact-social {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-700) 100%);
}

.contact-social h3 {
    text-align: center;
    margin-bottom: var(--space-xl);
    color: var(--white);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-xl);
    transition: all var(--transition);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.social-link:hover::before {
    left: 100%;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(10px);
}

.social-link i {
    font-size: var(--font-size-lg);
    width: 24px;
    text-align: center;
}

/* Footer */
.footer {
    background-color: var(--gray-900);
    color: var(--gray-400);
    padding: var(--space-3xl) 0 var(--space-xl);
    position: relative;
    overflow: hidden;
}

.dark-mode .footer {
    background-color: var(--gray-800);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.footer-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-logo .logo-dot {
    background-color: var(--primary-light);
}

.footer-logo .logo-name {
    color: var(--white);
    margin: 0;
}

.footer-text {
    font-size: var(--font-size-lg);
    color: var(--gray-300);
    margin: 0;
    max-width: 600px;
}

.footer-social {
    display: flex;
    gap: var(--space-lg);
}

.footer-social .social-icon {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.footer-social .social-icon:hover {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-3px) scale(1.1);
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
}

/* Responsive Design */
@media (max-width: 1024px) {
    h1 {
        font-size: var(--font-size-4xl);
    }
    
    h2 {
        font-size: var(--font-size-3xl);
    }
    
    .hero-content {
        gap: var(--space-2xl);
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .about-details-container {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .details-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--space-3xl);
        transition: left var(--transition);
        gap: var(--space-lg);
        z-index: 999;
        justify-content: center;
    }
    
    .dark-mode .nav-links {
        background-color: var(--white);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-link {
        padding: var(--space-md);
        font-size: var(--font-size-lg);
        text-align: center;
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
    
    .hero-text {
        align-items: center;
    }
    
    .hero-description {
        text-align: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
    }
    
    .image-wrapper {
        width: 300px;
        height: 300px;
        margin: 0 auto;
    }
    
    .details-grid {
        grid-template-columns: 1fr;
    }
    
    .about-cta {
        padding: var(--space-xl);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-container {
        grid-template-columns: 1fr;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    h1 {
        font-size: var(--font-size-3xl);
    }
    
    h2 {
        font-size: var(--font-size-2xl);
    }
    
    h3 {
        font-size: var(--font-size-xl);
    }
    
    .section {
        padding: var(--space-2xl) 0;
    }
    
    .about-text-main h3 {
        font-size: var(--font-size-2xl);
    }
    
    .about-text-main p {
        font-size: var(--font-size-base);
    }
    
    .detail-item {
        padding: var(--space-lg);
    }
    
    .skill-items {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .image-wrapper {
        width: 250px;
        height: 250px;
    }
    
    .contact-item,
    .certificate-card {
        flex-direction: column;
        text-align: center;
        gap: var(--space-md);
    }
    
    .contact-item .contact-icon,
    .certificate-icon {
        margin: 0 auto;
    }
}

/* Typewriter animation */
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.typewriter-text::after {
    content: '|';
    animation: blink 1s infinite;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

.dark-mode ::-webkit-scrollbar-track {
    background: var(--gray-800);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
}

.dark-mode ::-webkit-scrollbar-thumb {
    background: var(--gray-600);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}