:root {
    --primary: #f6e01a;
    --bg: #000000;
    --card-bg: rgba(20, 20, 20, 0.9);
}

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

body {
    background-color: var(--bg);
    color: white;
    font-family: 'Orbitron', sans-serif;
    overflow-x: hidden;
}

#canvas1 {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
}

/* Portfolio Container */
.portfolio-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 100px 5%;
}

/* Hero Section */
.portfolio-hero {
    text-align: center;
    margin-bottom: 60px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(50px);
    animation: heroTitleAnim 1s forwards;
}

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

.hero-description {
    font-size: 1.2rem;
    color: #ccc;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0;
    transform: translateY(30px);
    animation: heroDescAnim 1s 0.3s forwards;
}

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

.yellow-underline {
    width: 150px;
    height: 4px;
    background: var(--primary);
    margin: 20px auto;
    transform: scaleX(0);
    animation: underlineExpand 1s 0.5s forwards;
}

@keyframes underlineExpand {
    to { transform: scaleX(1); }
}

/* Category Links */
.category-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.category-btn {
    padding: 12px 25px;
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    text-decoration: none;
    font-weight: 900;
    border-radius: 30px;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    font-size: 0.9rem;
}

.category-btn:hover {
    background: var(--primary);
    color: black;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 20px rgba(246, 224, 26, 0.3);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

/* Project Card */
.project-card {
    background: var(--card-bg);
    border: 1px solid rgba(246, 224, 26, 0.1);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--primary);
    box-shadow: 0 20px 30px rgba(246, 224, 26, 0.15);
}

/* Card Image */
.card-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

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

/* Overlay */
.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(246, 224, 26, 0.9), rgba(0, 0, 0, 0.8));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
}

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

.overlay-content {
    text-align: center;
    transform: translateY(20px);
    transition: transform 0.4s ease;
}

.project-card:hover .overlay-content {
    transform: translateY(0);
}

.overlay-content h4 {
    color: black;
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 15px;
}

.view-details-btn {
    padding: 10px 25px;
    background: black;
    color: var(--primary);
    border: none;
    font-weight: 900;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    transition: all 0.3s ease;
}

.view-details-btn:hover {
    background: white;
    transform: scale(1.05);
}

/* Card Content */
.card-content {
    padding: 25px;
}

.card-content h3 {
    color: var(--primary);
    font-size: 1.4rem;
    font-weight: 900;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.card-subtitle {
    font-size: 0.9rem;
    color: #aaa;
    margin-bottom: 15px;
    font-weight: 700;
}

.card-description {
    color: #ccc;
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background: rgba(246, 224, 26, 0.1);
    border: 1px solid var(--primary);
    padding: 5px 12px;
    border-radius: 3px;
    font-size: 0.7rem;
    color: var(--primary);
    font-weight: 700;
}

/* Responsive */
@media (max-width: 768px) {
    .category-links {
        flex-direction: column;
        align-items: center;
    }
    
    .category-btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-container {
        padding: 60px 5%;
    }
}