:root {
    --bg-color: #0d0d0d;
    --card-bg: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent: #FFD700;
    /* Gold/Yellow */
    --accent-hover: #ffea70;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --font-main: 'Inter', sans-serif;
    --modal-overlay: rgba(0, 0, 0, 0.95);
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    background: rgba(13, 13, 13, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 80px;
    width: auto;
}

.social-links a {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-left: 20px;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

/* Hero */
.hero {
    padding: 160px 0 80px;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.highlight {
    color: var(--accent);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background: rgba(255, 215, 0, 0.2);
    z-index: -1;
    transform: skewX(-15deg);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Gallery Grid */
.portfolio {
    padding: 60px 0 100px;
}

.grid-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    /* group: hover; removed invalid property */
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: var(--accent);
}

.card-image-wrapper {
    height: 300px;
    /* Fixed height for consistency */
    overflow: hidden;
    position: relative;
}

.card-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    /* Critical: Show top of project */
    transition: transform 0.6s ease;
}

.card:hover .card-image-wrapper img {
    transform: scale(1.05);
}

.card-content {
    padding: 20px;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.card-category {
    font-size: 0.9rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay);
    z-index: 1000;
    overflow-y: auto;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: block;
    opacity: 1;
}

.modal-content {
    position: relative;
    max-width: 1000px;
    margin: 60px auto;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }

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

.close-modal {
    position: fixed;
    top: 20px;
    right: 30px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 3rem;
    cursor: pointer;
    z-index: 1100;
    transition: color 0.2s;
}

.close-modal:hover {
    color: var(--accent);
}

.modal-body {
    padding: 40px;
}

.modal-body h2 {
    margin-bottom: 30px;
    text-align: center;
    color: var(--accent);
}

.modal-images-container img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer {
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .grid-gallery {
        grid-template-columns: 1fr;
    }

    .modal-content {
        margin: 0;
        min-height: 100vh;
        border-radius: 0;
    }

    .close-modal {
        top: 10px;
        right: 20px;
        font-size: 2.5rem;
    }
}