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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
    color: #e0e0e0;
    overflow-x: hidden;
    scroll-behavior: smooth;
    line-height: 1.6;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 50px;
    background: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all 0.3s ease;
}

nav.scrolled {
    padding: 15px 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
}

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

.nav-links a {
    text-decoration: none;
    color: #b0b0b0;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    position: relative;
    padding: 10px 0;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: #ffffff;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #666, #999);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

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

.back-button {
    background: linear-gradient(135deg, #333333 0%, #555555 100%);
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    color: white;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.back-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

/* Hero Section */
.project-hero {
    padding: 150px 50px 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.project-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.project-hero-content {
    max-width: 800px;
    margin: 0 auto;
    z-index: 2;
    position: relative;
}

.project-status {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(40, 167, 69, 0.2);
    border: 1px solid rgba(40, 167, 69, 0.3);
    border-radius: 25px;
    color: #28a745;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.project-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #999999 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease 0.2s both;
}

.project-subtitle {
    font-size: 1.3rem;
    color: #b0b0b0;
    margin-bottom: 30px;
    animation: fadeInUp 1s ease 0.4s both;
}

.project-tags-hero {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.6s both;
}

.tag-hero {
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.9rem;
    color: #ccc;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.tag-hero:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.project-links-hero {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.8s both;
}

.project-link-hero {
    padding: 15px 30px;
    background: linear-gradient(135deg, #333333 0%, #555555 100%);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.project-link-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.15);
}

.project-link-hero.primary {
    background: linear-gradient(135deg, #666666 0%, #888888 100%);
}

/* Main Content */
.project-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 50px 100px;
}

/* Image Carousel */
.carousel-section {
    margin-bottom: 80px;
}

.carousel-container {
    position: relative;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.carousel-wrapper {
    position: relative;
    height: 500px;
    overflow: visible;
}

.carousel-slides {
    display: flex;
    transition: transform 0.5s ease;
    height: 100%;
}

.carousel-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: all 0.3s ease;
}

.carousel-slide img:hover {
    transform: scale(1.05);
}

.carousel-slide-placeholder {
    color: rgba(255, 255, 255, 0.3);
    font-size: 3rem;
    text-align: center;
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.7);
    border: none;
    color: white;
    font-size: 1.5rem;
    padding: 15px 20px;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s ease;
    z-index: 10;
    opacity: 0;
}

.carousel-container:hover .carousel-nav {
    opacity: 1;
}

.carousel-nav:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: translateY(-50%) scale(1.1);
}

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

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

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.carousel-indicator {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.3);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-indicator:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.1);
}

.carousel-indicator.active {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.2);
}

/* Project Details Grid */
.project-details {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
}

.project-main {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
}

.project-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 30px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.sidebar-card:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: #ffffff;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #666, #999);
    border-radius: 2px;
}

.project-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #b0b0b0;
    margin-bottom: 30px;
}

.project-description p {
    margin-bottom: 20px;
}

.features-list {
    list-style: none;
    margin-bottom: 30px;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    color: #b0b0b0;
}

.features-list li::before {
    content: '✓';
    color: #28a745;
    font-weight: bold;
    background: rgba(40, 167, 69, 0.1);
    width: 25px;
    height: 25px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.sidebar-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #ffffff;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    color: #b0b0b0;
}

.info-label {
    font-weight: 500;
    color: #ffffff;
}

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

.tech-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #ccc;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.tech-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.1);
}

.progress-bar {
    background: rgba(255, 255, 255, 0.1);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 5px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #28a745, #20c997);
    width: 100%;
    border-radius: 4px;
    animation: progressFill 1s ease;
}

/* Challenge and Solution Section */
.challenge-solution {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.challenge-card,
.solution-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 30px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.challenge-card {
    border-left: 4px solid #dc3545;
}

.solution-card {
    border-left: 4px solid #28a745;
}

.challenge-card:hover,
.solution-card:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    opacity: 0.7;
}

.challenge-card .card-icon {
    color: #dc3545;
}

.solution-card .card-icon {
    color: #28a745;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff;
}

.card-description {
    color: #b0b0b0;
    line-height: 1.6;
}

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

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

@keyframes progressFill {
    from {
        width: 0;
    }

    to {
        width: 100%;
    }
}

.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 {
        padding: 15px 20px;
    }

    .nav-container {
        flex-direction: column;
        gap: 20px;
    }

    .nav-links {
        gap: 20px;
    }

    .project-hero {
        padding: 120px 20px 80px;
    }

    .project-content {
        padding: 0 20px 80px;
    }

    .project-details {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .challenge-solution {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .project-tags-hero {
        justify-content: center;
    }

    .carousel-wrapper {
        height: 300px;
    }

    .carousel-nav {
        padding: 10px 15px;
        font-size: 1.2rem;
    }

    .carousel-nav.prev {
        left: 10px;
    }

    .carousel-nav.next {
        right: 10px;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1a1a1a;
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Floating elements animation */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.floating-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    animation: float 8s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 10%;
    animation-delay: 3s;
}

.floating-element:nth-child(3) {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 15%;
    animation-delay: 6s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.3;
    }

    50% {
        transform: translateY(-30px) rotate(5deg);
        opacity: 0.6;
    }
}

/* Loading animation for images */
.carousel-slide img {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.carousel-slide img.loaded {
    opacity: 1;
}

/* Image count indicator */
.image-counter {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    z-index: 10;
}

/* Full screen image viewer */
.fullscreen-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    cursor: pointer;
}

.fullscreen-image {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.fullscreen-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2rem;
    color: white;
    cursor: pointer;
    z-index: 10001;
}