:root {
    --color-bg-base: #181818;      
    --color-bg-elevated: #222222;  
    --color-bg-surface: #2E2E2E;   
    
    --color-white: #FFFFFF;
    --color-text-muted: #A0A0A0;
    --color-border: rgba(255, 255, 255, 0.08);
    
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Poppins', sans-serif; 
    
    --spacing-sm: 1.5rem;
    --spacing-md: 2.5rem;
    --spacing-lg: 5rem;
    --spacing-xl: 8rem;
    --transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 108px; }

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-base);
    color: var(--color-white);
    line-height: 1.8;
    font-size: 16px;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    text-align: justify;
    font-family: var(--font-heading);
    font-weight: 400;
    color: var(--color-white);
    line-height: 1.2;
}

h3 { text-align: left; !important }
 
p { text-align: justify; }

a { text-decoration: none; color: var(--color-white); transition: var(--transition); }

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.text-center { text-align: center; }
.subtitle { color: var(--color-text-muted); margin-bottom: 3rem; font-size: 1.1rem; }

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 2.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
}

.btn-primary { background-color: var(--color-white); color: var(--color-bg-base); }
.btn-primary:hover { background-color: #d4d4d4; }
.btn-outline { background-color: transparent; border-color: var(--color-white); color: var(--color-white); }
.btn-outline:hover { background-color: var(--color-white); color: var(--color-bg-base); }
.btn-block { width: 100%; }

.fab-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 65px;
    height: 65px;
    background-color: var(--color-white);
    color: var(--color-bg-base);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    z-index: 9999;
    transition: var(--transition);
}

.fab-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0,0,0,0.6);
}

.navbar {
    position: fixed; top: 0; width: 100%;
    background-color: rgba(24, 24, 24, 0.85); 
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.navbar-container { display: flex; justify-content: space-between; align-items: center; height: 108px; }
.logo-img { height: 88px; width: auto; object-fit: contain; }

.nav-menu { display: flex; list-style: none; gap: 3rem; align-items: center; }
.nav-link { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; color: var(--color-text-muted); }
.nav-link:hover { color: var(--color-white); }
.btn-nav { border: 1px solid var(--color-white); padding: 0.6rem 1.8rem; color: var(--color-white); border-radius: 2px; }
.btn-nav:hover { background-color: var(--color-white); color: var(--color-bg-base); }

.menu-toggle { display: none; flex-direction: column; gap: 6px; background: none; border: none; cursor: pointer; }
.menu-toggle span { width: 30px; height: 2px; background-color: var(--color-white); transition: var(--transition); }

section { padding: var(--spacing-xl) 0; }
.section-title { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1.5rem; }

.hero {
    min-height: 100vh;
    min-height: 100svh;
    display: flex; align-items: center;
    background-color: var(--color-bg-base);
    padding-top: 178px; position: relative;
}
.hero h1 { font-size: 2.3rem; }
.hero-bg {
    position: absolute; inset: 0;
    background-color: var(--color-bg-surface);
    z-index: 1;
}
.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(18, 18, 18, 0.65);
    z-index: 1;
}
.hero-content { position: relative; z-index: 2; max-width: 900px; }
.hero-title { font-size: clamp(3rem, 6vw, 5rem); margin-bottom: 1.5rem; font-weight: 300; letter-spacing: -1px; }
.hero-subtitle { font-size: 1.2rem; color: var(--color-text-muted); margin-bottom: 3rem; max-width: 600px; }
.hero-actions { display: flex; gap: 1.5rem; flex-wrap: wrap; }

.about { background-color: var(--color-bg-elevated); }
.about-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--spacing-lg); align-items: center; }
.about-text h2.section-title { font-size: clamp(1.5rem, 3vw, 2.2rem); margin-bottom: 1rem; }
.bio-content p { margin-bottom: 1.5rem; color: var(--color-text-muted); font-size: 0.9rem; }
.about-text > p { color: var(--color-text-muted); text-transform: uppercase; }

.about-services { 
    gap: 1rem;
    margin-bottom: 1.5rem; 
}
.about-services p {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}
.about-services p::before {
    content: '—';
    position: absolute;
    left: 0;
    color: rgba(255, 255, 255, 0.3);
}

.about-image-placeholder {
    width: 100%; aspect-ratio: 3/4;
    background-color: var(--color-bg-surface);
    display: flex; align-items: center; justify-content: center;
    color: var(--color-text-muted);
}
.about-image-placeholder img { width: 100%; height: 100%; object-fit: cover; }

.benefits { background-color: var(--color-bg-base); }
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}
.benefit-card {
    background: var(--color-bg-elevated);
    padding: 2.5rem;
    border-radius: 4px;
    border-left: 2px solid var(--color-white);
    transition: var(--transition);
}
.benefit-card:hover {
    transform: translateY(-5px);
    background: var(--color-bg-surface);
}
.benefit-card h3 {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--color-white);
}
.benefit-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.services { background-color: var(--color-bg-elevated); }
.services-wrapper { display: flex; flex-direction: column; gap: var(--spacing-xl); margin-top: var(--spacing-lg); }
.service-row {
    display: grid; grid-template-columns: 1fr; gap: var(--spacing-lg); align-items: center;
    cursor: pointer; 
}
.service-row:hover h3 { color: #d4d4d4; }
.service-info h3 { font-size: 2.2rem; margin-bottom: 1rem; transition: var(--transition); }
.service-info p { color: var(--color-text-muted); font-size: 1.05rem; margin-bottom: 1.5rem; }
.service-link { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 1px; color: var(--color-white); border-bottom: 1px solid var(--color-white); padding-bottom: 0.3rem;}

.portfolio { background-color: var(--color-bg-base); }
.portfolio-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem; margin-top: 3rem;
}
.portfolio-item {
    display: block; background: var(--color-bg-surface); cursor: pointer;
    overflow: hidden; transition: var(--transition);
}
.portfolio-item:hover { transform: translateY(-10px); }
.portfolio-image { width: 100%; aspect-ratio: 4/3; background: var(--color-bg-base); }
.portfolio-image img { width: 100%; }
.portfolio-content { padding: 1.5rem; }
.portfolio-content h4 { font-size: 1.2rem; margin-bottom: 0.3rem; text-align: left !important; }
.portfolio-content p { color: var(--color-text-muted); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 1px; }

.contact { background-color: var(--color-bg-base); border-top: 1px solid var(--color-border); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); }
.contact-info p { color: var(--color-text-muted); margin-bottom: 3rem; font-size: 1.1rem; }
.detail-item { margin-bottom: 2.5rem; }
.detail-label { display: block; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 2px; color: var(--color-text-muted); margin-bottom: 0.8rem; }
.detail-item a, .detail-item p { font-size: 1.2rem; color: var(--color-white); overflow-wrap: break-word; word-break: break-word; }

.form-group { margin-bottom: 2rem; }
.form-group label { display: block; margin-bottom: 0.8rem; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; color: var(--color-text-muted); }
.form input, .form select, .form textarea {
    width: 100%; padding: 1.2rem;
    background-color: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-white); font-family: var(--font-body); font-size: 1rem;
    outline: none; transition: var(--transition);
}
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--color-white); background-color: var(--color-bg-surface); }
.form-feedback { margin-top: 1rem; font-size: 0.9rem; text-align: center; }

.footer { background-color: var(--color-bg-base); padding: var(--spacing-lg) 0 2rem 0; border-top: 1px solid var(--color-border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 4rem; margin-bottom: 4rem; }
.footer-logo { height: 64px; margin-bottom: 1.5rem; }
.footer-brand p { color: var(--color-text-muted); max-width: 300px; }
.footer-links h4 { font-size: 1rem; margin-bottom: 1.5rem; text-transform: uppercase; letter-spacing: 1px; }
.footer-links a, .footer-links p { display: block; color: var(--color-text-muted); margin-bottom: 1rem; transition: var(--transition); overflow-wrap: break-word; }
.footer-links a:hover { color: var(--color-white); }
.footer-bottom { text-align: center; border-top: 1px solid var(--color-border); padding-top: 2rem; color: var(--color-text-muted); font-size: 0.85rem; }

.social-links { display: flex; gap: 0.85rem; margin-top: 1.5rem; flex-wrap: wrap; }
.social-btn {
    width: 44px; height: 44px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    display: inline-flex !important; align-items: center !important; justify-content: center !important;
    line-height: 0; flex: 0 0 auto;
    color: var(--color-text-muted); background-color: transparent;
    transition: var(--transition);
}
.social-btn svg { width: 20px; height: 20px; display: block; flex: 0 0 auto; }
.social-btn:hover {
    background-color: var(--color-white); color: var(--color-bg-base);
    border-color: var(--color-white); transform: translateY(-3px);
}

.projects-hero {
    background-color: var(--color-bg-base);
    padding-top: calc(108px + var(--spacing-lg));
    padding-bottom: var(--spacing-md);
    text-align: center;
}
.projects-hero .section-title { margin-bottom: 1rem; }

.filter-bar { display: flex; justify-content: center; flex-wrap: wrap; gap: 1rem; margin-top: 2.5rem; }
.filter-btn {
    background: transparent; border: 1px solid var(--color-border);
    color: var(--color-text-muted); padding: 0.7rem 1.8rem;
    font-family: var(--font-body); font-size: 0.8rem;
    text-transform: uppercase; letter-spacing: 1.5px;
    cursor: pointer; transition: var(--transition);
}
.filter-btn:hover { color: var(--color-white); border-color: var(--color-white); }
.filter-btn.active { background: var(--color-white); color: var(--color-bg-base); border-color: var(--color-white); }

.all-projects { background-color: var(--color-bg-elevated); padding-top: var(--spacing-lg); }
.all-projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 2rem; }

.proj-card {
    display: block; background: var(--color-bg-surface);
    overflow: hidden; cursor: pointer; transition: var(--transition);
}
.proj-card.hidden { display: none; }
.proj-card:hover { transform: translateY(-10px); }
.proj-card-img { width: 100%; aspect-ratio: 4/3; overflow: hidden; background: var(--color-bg-base); }
.proj-card-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: var(--transition); }
.proj-card:hover .proj-card-img img { transform: scale(1.05); }
.proj-card-body { padding: 1.5rem; }
.proj-card-body h4 { font-size: 1.2rem; margin-bottom: 0.3rem; }
.proj-card-body span { color: var(--color-text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; }

.lightbox {
    position: fixed; inset: 0;
    background: rgba(10, 10, 10, 0.96); backdrop-filter: blur(6px);
    z-index: 10000; display: none; align-items: center; justify-content: center;
    padding: 2rem 1rem;
}
.lightbox.open { display: flex; }
.lightbox-inner { width: 100%; max-width: 1100px; display: flex; flex-direction: column; align-items: center; gap: 1.2rem; }
.lightbox-head { text-align: center; }
.lightbox-head h3 { font-size: 1.6rem; }
.lightbox-head span { color: var(--color-text-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; }
.lightbox-stage { position: relative; width: 100%; display: flex; align-items: center; justify-content: center; min-height: 200px; }
.lightbox-img { max-width: 100%; max-height: 68vh; object-fit: contain; display: block; opacity: 0; transition: opacity 0.3s; }
.lb-nav {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 50px; height: 50px; border-radius: 50%;
    border: 1px solid var(--color-border); background: rgba(24, 24, 24, 0.6);
    color: var(--color-white); font-size: 1.6rem; cursor: pointer;
    display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.lb-nav:hover { background: var(--color-white); color: var(--color-bg-base); }
.lb-prev { left: 10px; }
.lb-next { right: 10px; }
.lb-counter { color: var(--color-text-muted); font-size: 0.85rem; letter-spacing: 1px; min-height: 1.2em; }
.lb-close {
    position: fixed; top: 24px; right: 28px;
    width: 46px; height: 46px; border-radius: 50%;
    border: 1px solid var(--color-border); background: rgba(24, 24, 24, 0.6);
    color: var(--color-white); font-size: 1.6rem; line-height: 1; cursor: pointer;
    transition: var(--transition); z-index: 10001;
}
.lb-close:hover { background: var(--color-white); color: var(--color-bg-base); }
.lb-thumbs { display: flex; gap: 0.6rem; flex-wrap: wrap; justify-content: center; max-width: 100%; }
.lb-thumb { width: 70px; height: 52px; object-fit: cover; cursor: pointer; opacity: 0.45; border: 2px solid transparent; transition: var(--transition); }
.lb-thumb.active, .lb-thumb:hover { opacity: 1; border-color: var(--color-white); }

@media (max-width: 992px) {
    .about-grid, .contact-grid, .footer-grid { grid-template-columns: 1fr; gap: 3rem; }
    .service-row { grid-template-columns: 1fr; gap: 2rem; }
    .footer-grid { gap: 2rem; text-align: center; }
    .footer-brand p { margin: 0 auto; }
    .social-links { justify-content: center; }
    .section-title { font-size: 2.2rem; }
}

@media (max-width: 768px) {
    html { scroll-padding-top: 88px; }
    body { font-size: 15px; }
    .navbar-container { height: 88px; }
    .logo-img { height: 70px; }
    .menu-toggle { display: flex; }
    .nav-menu {
        position: absolute; top: 88px; left: -100%; flex-direction: column;
        background-color: var(--color-bg-elevated); width: 100%;
        height: calc(100vh - 88px); height: calc(100dvh - 88px);
        padding-top: 3rem; transition: 0.4s; overflow-y: auto;
    }
    .nav-menu.active { left: 0; }
    .nav-link { font-size: 1.1rem; }
    .btn-nav { border: none; padding: 0; }
    .hero { padding-top: 140px; align-items: flex-start; }
    .hero-content { margin-top: 1.5rem; }
    .hero-title { font-size: 2.2rem; line-height: 1.1; }
    .hero-subtitle { font-size: 1rem; }
    .hero-actions { gap: 1rem; }
    .hero-actions .btn { flex: 1 1 auto; font-size: 0.8rem; }
    section { padding: 4rem 0; }
    .section-title { font-size: 1.8rem; }
    .service-info h3 { font-size: 1.8rem; }
    .subtitle { font-size: 1rem; }
    .about-services { grid-template-columns: repeat(2, 1fr); }
    .fab-btn { width: 55px; height: 55px; bottom: 20px; right: 20px; }
    .lightbox-img { max-height: 60vh; }
    .lb-nav { width: 42px; height: 42px; font-size: 1.3rem; }
    .lb-close { top: 16px; right: 16px; }
}

@media (max-width: 480px) {
    .about-services { grid-template-columns: 1fr; }
    .hero-title { font-size: 1.8rem; }
    .section-title, .service-info h3 { font-size: 1.5rem; }
    .benefit-card { padding: 1.5rem; }
    .contact-info p { font-size: 1rem; }
    .contact-form-info { margin-right: 20px; }
}