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

:root {
    /* Color Palette */
    --primary-blue: #4A90E2;
    --light-blue: #E3F2FD;
    --dark-blue: #2C5AA0;
    --accent-blue: #64B5F6;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --border-light: #E9ECEF;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --section-padding: 120px 0;
    --container-padding: 0 20px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo .logo-img {
    margin-top: 10px;
    height: 40px;
    width: auto;
    transition: transform var(--transition-normal);
}

.nav-logo .logo-img:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: var(--font-weight-medium);
    font-size: 16px;
    position: relative;
    transition: color var(--transition-fast);
}

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

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

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

.nav-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

.language-toggle {
    display: flex;
    background: var(--light-gray);
    border-radius: 25px;
    padding: 4px;
}

.lang-btn {
    background: none;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-light);
}

.lang-btn.active {
    background: var(--primary-blue);
    color: var(--white);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="%234A90E2" opacity="0.3"/><circle cx="80" cy="40" r="1.5" fill="%234A90E2" opacity="0.4"/><circle cx="40" cy="80" r="1" fill="%234A90E2" opacity="0.2"/><circle cx="90" cy="90" r="2.5" fill="%234A90E2" opacity="0.3"/></svg>') repeat;
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-100px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-text {
    animation: slideInLeft 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-top: 40px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 16px 32px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-size: 16px;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    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 var(--transition-slow);
}

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

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.btn-primary:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
}

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

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

.hero-visual {
    animation: slideInRight 1s ease-out;
}

.code-animation {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
}

.code-window {
    background: #1e1e1e;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    animation: codeWindowFloat 4s ease-in-out infinite;
}

.window-header {
    background: #2d2d2d;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid #404040;
}

.window-controls {
    display: flex;
    gap: 8px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.close {
    background: #ff5f57;
}

.control.minimize {
    background: #ffbd2e;
}

.control.maximize {
    background: #28ca42;
}

.window-title {
    color: #ffffff;
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.code-content {
    padding: 20px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
    position: relative;
    background: #1e1e1e;
}

.code-line {
    display: flex;
    margin-bottom: 4px;
    opacity: 0;
    animation: typeIn 0.5s ease forwards;
}

.code-line:nth-child(1) { animation-delay: 0.5s; }
.code-line:nth-child(2) { animation-delay: 1s; }
.code-line:nth-child(3) { animation-delay: 1.5s; }
.code-line:nth-child(4) { animation-delay: 2s; }
.code-line:nth-child(5) { animation-delay: 2.5s; }
.code-line:nth-child(6) { animation-delay: 3s; }
.code-line:nth-child(7) { animation-delay: 3.5s; }
.code-line:nth-child(8) { animation-delay: 4s; }
.code-line:nth-child(9) { animation-delay: 4.5s; }
.code-line:nth-child(10) { animation-delay: 5s; }
.code-line:nth-child(11) { animation-delay: 5.5s; }

.line-number {
    color: #6a6a6a;
    margin-right: 16px;
    min-width: 20px;
    text-align: right;
    user-select: none;
}

.code-text {
    flex: 1;
}

.keyword {
    color: #569cd6;
    font-weight: var(--font-weight-semibold);
}

.variable {
    color: #9cdcfe;
}

.operator {
    color: #d4d4d4;
}

.string {
    color: #ce9178;
}

.comment {
    color: #6a9955;
    font-style: italic;
}

.function {
    color: #dcdcaa;
}

.bracket {
    color: #d4d4d4;
}

.parameter {
    color: #9cdcfe;
}

.object {
    color: #d4d4d4;
}

.property {
    color: #9cdcfe;
}

.comma {
    color: #d4d4d4;
}

.indent {
    color: transparent;
}

.cursor {
    display: inline-block;
    width: 2px;
    height: 20px;
    background: #ffffff;
    animation: blink 1s infinite;
    margin-left: 4px;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
    justify-content: center;
}

.badge {
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    animation: badgeFloat 3s ease-in-out infinite;
}

.badge:nth-child(1) { animation-delay: 0s; }
.badge:nth-child(2) { animation-delay: 0.5s; }
.badge:nth-child(3) { animation-delay: 1s; }
.badge:nth-child(4) { animation-delay: 1.5s; }
.badge:nth-child(5) { animation-delay: 2s; }
.badge:nth-child(6) { animation-delay: 2.5s; }

@keyframes codeWindowFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes typeIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes badgeFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--primary-blue);
    border-bottom: 2px solid var(--primary-blue);
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(45deg); }
    40% { transform: translateY(-10px) rotate(45deg); }
    60% { transform: translateY(-5px) rotate(45deg); }
}

/* Sections */
section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 20px;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Services Section */
.services {
    background: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-blue));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--light-blue), var(--accent-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: transform var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

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

.service-card h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 16px;
    color: var(--text-dark);
}

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

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.6;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-blue);
    margin-bottom: 8px;
}

.stat p {
    color: var(--text-light);
    font-weight: var(--font-weight-medium);
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.tech-item {
    background: var(--white);
    padding: 20px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-light);
}

.tech-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.tech-item i {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: 12px;
    display: block;
}

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

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

/* Projects Carousel */
.projects-carousel {
    position: relative;
    margin-top: 60px;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
}

.carousel-track {
    display: flex;
    transition: transform 0.4s ease;
    will-change: transform;
}

.project-slide {
    min-width: 100%;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid var(--primary-blue);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    color: var(--primary-blue);
    font-size: 1.2rem;
}

.carousel-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn-prev {
    left: 20px;
}

.carousel-btn-next {
    right: 20px;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 30px;
}

.carousel-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--primary-blue);
    background: transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    padding: 0;
}

.carousel-indicator.active {
    background: var(--primary-blue);
    transform: scale(1.2);
}

.carousel-indicator:hover {
    transform: scale(1.3);
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

/* New Project Item Styles */
.project-item {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-light);
    margin-bottom: 40px;
}

.project-item-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--border-light);
}

.project-item-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-dark);
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-item-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    font-weight: var(--font-weight-medium);
}

.project-item-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.project-images-gallery {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.project-main-image {
    width: 100%;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    background: var(--light-gray);
    position: relative;
    cursor: pointer;
}

.project-main-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.project-main-image:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(74, 144, 226, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    opacity: 0;
    transition: opacity var(--transition-normal);
    color: var(--white);
    font-weight: var(--font-weight-medium);
}

.project-main-image:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay i {
    font-size: 2rem;
}

.gallery-overlay span {
    font-size: 1rem;
}

.project-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.project-thumbnail {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    background: var(--light-gray);
    opacity: 0.6;
}

.project-thumbnail.active {
    opacity: 1;
    border-color: var(--primary-blue);
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
}

.project-thumbnail:hover {
    transform: scale(1.05);
    border-color: var(--primary-blue);
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.project-tech-icons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}

.tech-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 12px;
    background: var(--white);
    border-radius: 8px;
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    min-width: 70px;
}

.tech-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-blue);
}

.tech-icon i {
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.tech-icon span {
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
    text-align: center;
    white-space: nowrap;
}

.project-description {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.project-description-section {
    background: var(--light-gray);
    padding: 24px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-blue);
}

.description-section-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.description-section-title::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--primary-blue);
    border-radius: 2px;
}

/* Compact Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-dark);
    line-height: 1.5;
    font-size: 0.9rem;
    padding: 8px;
    background: var(--white);
    border-radius: 6px;
    transition: all var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.feature-item i {
    color: var(--primary-blue);
    font-size: 1rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.feature-item span {
    flex: 1;
}

/* Compact Tech Grid */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.tech-item-compact {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 12px;
    background: var(--white);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
    text-align: center;
}

.tech-item-compact:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.tech-item-compact i {
    font-size: 1.75rem;
    color: var(--primary-blue);
}

.tech-item-compact span {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
}

/* Legacy styles for backward compatibility */
.feature-list,
.tech-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-list li,
.tech-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-dark);
    line-height: 1.6;
}

.feature-list li i,
.tech-list li i {
    color: var(--primary-blue);
    font-size: 1.125rem;
    margin-top: 4px;
    flex-shrink: 0;
}

.feature-list li span,
.tech-list li span {
    flex: 1;
    font-size: 1rem;
}

.tech-list li {
    padding: 12px;
    background: var(--white);
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
}

.tech-list li:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

/* Legacy styles for backward compatibility */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-light);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-overlay {
    text-align: center;
    color: var(--white);
}

.project-overlay h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 8px;
}

.project-overlay p {
    font-size: 1rem;
    opacity: 0.9;
}

.project-content {
    padding: 30px;
}

.project-content h4 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 12px;
    color: var(--text-dark);
}

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

.project-tech {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.project-tech span {
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info {
    text-align: left;
}

.contact-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.6;
    text-align: left;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 20px;
    text-align: left;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-item > div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.contact-item h4 {
    font-weight: var(--font-weight-semibold);
    margin-bottom: 4px;
    color: var(--text-dark);
    text-align: left;
}

.contact-item p {
    color: var(--text-light);
    text-align: left;
}

.contact-link {
    color: var(--text-light);
    text-decoration: none;
    transition: all var(--transition-normal);
    border-bottom: 1px solid transparent;
}

.contact-link:hover {
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue);
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-light);
}

.contact-form form {
    display: flex;
    flex-direction: column;
}

.contact-form .btn {
    align-self: flex-end;
    margin-top: 10px;
}

.form-group {
    position: relative;
    margin-bottom: 30px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius);
    font-size: 16px;
    font-family: var(--font-primary);
    transition: all var(--transition-normal);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-group label {
    position: absolute;
    top: 16px;
    left: 20px;
    color: var(--text-light);
    font-size: 16px;
    transition: all var(--transition-normal);
    pointer-events: none;
    background: var(--white);
    padding: 0 8px;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -8px;
    font-size: 14px;
    color: var(--primary-blue);
}

/* Footer */
.footer {
    background: #f8f9fa;
    color: var(--text-dark);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo .logo-img {
    height: 50px;
    width: auto;
    margin-bottom: 12px;
}

.footer-logo p {
    color: var(--text-light);
    margin-top: 12px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-section h4 {
    font-weight: var(--font-weight-semibold);
    margin-bottom: 20px;
    color: var(--text-dark);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--primary-blue);
}

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: 30px;
    text-align: center;
    color: var(--text-light);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.2s ease;
}

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

.animate-on-scroll.slide-left {
    transform: translateX(-30px);
}

.animate-on-scroll.slide-left.animated {
    transform: translateX(0);
}

.animate-on-scroll.slide-right {
    transform: translateX(30px);
}

.animate-on-scroll.slide-right.animated {
    transform: translateX(0);
}

/* Image Gallery Lightbox */
.gallery-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gallery-lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

#lightboxImage {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 30px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid var(--white);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--white);
    font-size: 1.5rem;
    transition: all var(--transition-normal);
    z-index: 10001;
}

.lightbox-close:hover {
    background: var(--white);
    color: var(--text-dark);
    transform: rotate(90deg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid var(--white);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--white);
    font-size: 1.5rem;
    transition: all var(--transition-normal);
    z-index: 10001;
}

.lightbox-nav:hover {
    background: var(--white);
    color: var(--text-dark);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: 30px;
}

.lightbox-next {
    right: 30px;
}

.lightbox-counter {
    color: var(--white);
    font-size: 1.1rem;
    font-weight: var(--font-weight-medium);
    background: rgba(0, 0, 0, 0.5);
    padding: 8px 16px;
    border-radius: 20px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        transition: left var(--transition-normal);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    /* Mobile logo centering and sizing */
    .nav-logo .logo-img {
        height: 30px;
        width: auto;
    }
    
    .nav-container {
        height: 70px;
    }
    
    /* Mobile text centering for all sections */
    .hero-text {
        text-align: center;
    }
    
    .about-text {
        text-align: center;
    }
    
    .contact-info {
        text-align: center;
    }
    
    .contact-description {
        text-align: center;
    }
    
    /* Center contact details on mobile */
    .contact-details {
        align-items: center;
        text-align: center;
    }
    
    .contact-item {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        gap: 15px;
    }
    
    .contact-item > div {
        align-items: center;
        text-align: center;
    }
    
    .contact-item h4 {
        text-align: center;
    }
    
    .contact-item p {
        text-align: center;
    }
    
    .contact-form .btn {
        align-self: flex-end;
        width: 100%;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    /* Mobile styles for new project item layout */
    .project-item {
        padding: 30px 20px;
    }
    
    .project-item-title {
        font-size: 2rem;
    }
    
    .project-item-subtitle {
        font-size: 1.125rem;
    }
    
    .project-item-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .project-slide {
        padding: 30px 20px;
        gap: 30px;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .carousel-btn-prev {
        left: 10px;
    }
    
    .carousel-btn-next {
        right: 10px;
    }
    
    .lightbox-close {
        top: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .lightbox-nav {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .lightbox-prev {
        left: 15px;
    }
    
    .lightbox-next {
        right: 15px;
    }
    
    .lightbox-content {
        max-width: 95%;
        max-height: 95vh;
    }
    
    #lightboxImage {
        max-height: 80vh;
    }
    
    .project-thumbnails {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .project-thumbnail {
        height: 80px;
    }
    
    .project-description-section {
        padding: 20px;
    }
    
    .description-section-title {
        font-size: 1.125rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .project-tech-icons {
        gap: 10px;
        margin-top: 15px;
        padding-top: 15px;
    }
    
    .tech-icon {
        padding: 8px 10px;
        min-width: 60px;
    }
    
    .tech-icon i {
        font-size: 1.25rem;
    }
    
    .tech-icon span {
        font-size: 0.7rem;
    }
    
    .stats {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .tech-stack {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .footer-content {
        text-align: center;
    }
    
    .footer-logo {
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .btn {
        padding: 14px 28px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .service-card,
    .project-card {
        padding: 30px 20px;
    }
    
    /* Extra small screens - project item */
    .project-item {
        padding: 20px 15px;
    }
    
    .project-item-title {
        font-size: 1.75rem;
    }
    
    .project-item-subtitle {
        font-size: 1rem;
    }
    
    .project-thumbnail {
        height: 60px;
    }
    
    .project-description-section {
        padding: 15px;
    }
    
    .description-section-title {
        font-size: 1rem;
    }
    
    .feature-item {
        font-size: 0.85rem;
        padding: 6px;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-item-compact {
        padding: 12px 8px;
    }
    
    .tech-item-compact i {
        font-size: 1.5rem;
    }
    
    .tech-item-compact span {
        font-size: 0.8rem;
    }
    
    .project-tech-icons {
        gap: 8px;
        margin-top: 12px;
        padding-top: 12px;
    }
    
    .tech-icon {
        padding: 6px 8px;
        min-width: 55px;
    }
    
    .tech-icon i {
        font-size: 1.1rem;
    }
    
    .tech-icon span {
        font-size: 0.65rem;
    }
    
    .feature-list li,
    .tech-list li {
        font-size: 0.9rem;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .floating-cards {
        height: 300px;
    }
    
    .card {
        padding: 20px;
    }
    
    .card i {
        font-size: 1.5rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .scroll-indicator,
    .hero-buttons,
    .contact-form {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 40px 0;
    }
    
    section {
        padding: 40px 0;
    }
}