html { scroll-behavior: smooth; }
body {
    background-color: #0b0b0b;
    color: #d1d1d1;
    font-family: 'Inter', sans-serif;
    margin: 0;
    line-height: 1.6;
}


.sticky-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(11, 11, 11, 0.95);
    border-bottom: 1px solid #222;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    color: #fff;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-link:hover, .nav-link.active { color: #fff; }
.nav-link.portfolio-active { color: #60a5fa; }


.sub-nav-container {
    position: sticky;
    top: 71px;
    z-index: 50;
    background-color: #1a1a1a;
    border-bottom: 1px solid #2a2a2a;
    padding: 0.75rem 0;
}

.sub-nav {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.sub-nav a {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.sub-nav a:hover, .sub-nav a.active { color: #fff; }


.home-header {
    max-width: 56rem;
    margin: 6rem auto;
    padding: 0 1.5rem;
}

.home-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 1.5rem;
    letter-spacing: -0.025em;
}

@media (min-width: 768px) { .home-title { font-size: 3.75rem; } }

.home-desc {
    font-size: 1.125rem;
    color: #9ca3af;
    line-height: 1.8;
}

.section-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #4b5563;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #1f2937;
}


.grid-container {
    max-width: 80rem;
    margin: 0 auto;
    padding: 0 1.5rem 5rem 1.5rem;
}

.project-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}


.hero-date {
    color: #aaa;
    font-size: 0.9rem;
    letter-spacing: 0.2em;
    margin-top: 1rem;
}


.gallery-container {
    grid-column: span 12; 
    margin-top: 4rem;
}

.portfolio-gallery {
    display: grid;

    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

@media (min-width: 640px) {
    .portfolio-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .portfolio-gallery {
        grid-template-columns: repeat(3, 1fr); 
    }
}

.gallery-img, .list-img {
    width: 100%;
    object-fit: cover; 
    border-radius: 4px;
    border: 1px solid #222;
    filter: grayscale(100%);
    transition: all 0.4s ease;
    display: block; 
}

.gallery-img:hover, .list-img:hover {
    filter: grayscale(0%);
    border-color: #60a5fa;
    transform: scale(1.02);
}
@media (min-width: 768px) { .project-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .project-grid { grid-template-columns: repeat(3, 1fr); } }

.project-card {
    background: #151515;
    border: 1px solid #222;
    overflow: hidden;
    transition: transform 0.3s, border-color 0.3s;
}

.project-card:hover { transform: translateY(-5px); border-color: #444; }
.project-card.featured { grid-column: span 2; }

.card-img-box {
    background-color: #1f2937;
    position: relative;
    overflow: hidden;
}

.aspect-video { aspect-ratio: 16 / 9; }
.aspect-square { aspect-ratio: 1 / 1; }

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    transition: opacity 0.3s;
}

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

.card-content { padding: 1.5rem; }

.badge {
    background: #333;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 0.5rem;
}


.project-detail { scroll-margin-top: 120px; }
.bg-dark { background-color: #111; }

.hero-banner {
    height: 60vh;
    min-height: 400px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #fff;
}

.content-section {
    max-width: 135rem;
    margin: 0 auto;
    padding: 5rem 1.5rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 1024px) { .content-section { grid-template-columns: repeat(12, 1fr); } }

.col-left { grid-column: span 7; }
.col-right { grid-column: span 5; }
.space-y { display: flex; flex-direction: column; gap: 1.5rem; }

.img-rounded {
    width: 100%;
    border-radius: 4px;
    transition: 0.5s;

    object-fit: cover; 
    aspect-ratio: 16 / 9; 
}


.img-rounded.grayscale:hover {
    filter: grayscale(0);
}

.footer {
    padding: 5rem 0;
    text-align: center;
    border-top: 1px solid #1f2937;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #4b5563;
}


.lightbox {
    display: none;
    position: fixed;
    z-index: 9999 !important; 
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
}

/* The Image itself */
.lightbox-content {
    max-width: 90%;
    max-height: 80%;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    border-radius: 4px;
}


.lightbox-btn {
    position: absolute;
    background: none;
    border: none;
    color: white;
    font-size: 3rem;
    cursor: pointer;
    padding: 20px;
    user-select: none;
    transition: color 0.3s;
}
#lightbox-video {
    max-width: 90%;
    max-height: 80vh;
    outline: none;
    border-radius: 4px;
}
.lightbox-btn:hover { color: #60a5fa; }
.prev { left: 5%; }
.next { right: 5%; }


.close-lightbox {
    position: absolute;
    top: 30px;
    right: 40px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}
.portfolio-list {
    display: flex;
    flex-direction: column; 
    gap: 2.5rem;       
    margin-top: 2rem;
    width: 100%;
    max-width: 900px;       
    margin-left: auto;
    margin-right: auto;
}

.list-img {
    width: 100%;          
    height: auto;           
    display: block;
    border-radius: 8px;    
    box-shadow: 0 4px 6px rgba(0,0,0,0.1); 
}

.gallery-split {
    display: grid;
    grid-template-columns: 1fr; 
    gap: 2rem;
    grid-column: span 12; 
    margin-top: 4rem;
}


@media (min-width: 1024px) {

    .gallery-split.big-left {

        grid-template-columns: 1.2fr 1fr; 
        align-items: stretch; 
    }


    .gallery-split.big-right {
        grid-template-columns: 1fr 1.2fr;
        align-items: stretch;
    }
}


.split-big-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid #222;
    filter: grayscale(100%);
    transition: all 0.4s ease;
    display: block;
}

.split-big-img:hover {
    filter: grayscale(0%);
    border-color: #60a5fa;
}


.gallery-split .portfolio-gallery {
    margin-top: 0; 
}

.social-links-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.social-tag {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #1a1a1a;
    border: 1px solid #333;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    color: #fff;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.social-tag img {
    width: 16px;
    height: 16px;
}

.social-tag:hover {
    border-color: #60a5fa;
    background: #222;
}


.about-grid-section {
    max-width: 80rem;
    margin: 4rem auto;
    padding: 0 1.5rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    border-top: 1px solid #222;
    padding-top: 4rem;
}

@media (min-width: 1024px) {
    .about-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.about-col h3 {
    color: #fff;
    font-size: 1.1rem;
    margin: 1rem 0;
}

.about-col p {
    font-size: 0.9rem;
    color: #9ca3af;
    margin-bottom: 1.5rem;
}

.col-icon {
    font-size: 1.5rem;
    opacity: 0.8;
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.about-list li {
    font-size: 0.85rem;
    color: #d1d1d1;
    margin-bottom: 0.5rem;
    padding-left: 1rem;
    position: relative;
}

.about-list li::before {
    content: "•";
    color: #60a5fa;
    position: absolute;
    left: 0;
}

.contact-section {
    padding: 6rem 0;
    background-color: #0b0b0b;
    text-align: center;
}

.contact-grid {
    display: flex;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.contact-circle {
    width: 120px;
    height: 120px;
    background-color: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.contact-circle img {
    width: 60%;         
    height: 60%;        
    object-fit: contain; 
    filter: brightness(0); 
}

.contact-circle:hover {
    transform: scale(1.1);
    background-color: #60a5fa;
}

.contact-link, .contact-text {
    color: #9ca3af;
    text-decoration: none;
    font-size: 0.9rem;
    border-bottom: 1px solid transparent;
    transition: color 0.3s, border-color 0.3s;
}

.contact-link:hover {
    color: #fff;
    border-color: #60a5fa;
}

@media (max-width: 768px) {
    .contact-grid { gap: 2rem; }
    .contact-circle { width: 90px; height: 90px; }
}