/* --- CSS Reset & Variables --- */
:root {
    --primary: #2563eb;
    --dark: #0f172a;
    --light: #f8fafc;
    --text: #334155;
    --white: #ffffff;
    --transition: all 0.4s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--light);
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- Utility Classes --- */
.visually-hidden {
    position: absolute;
    left: -10000px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* Scroll Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Navigation --- */
.navbar {
    background: var(--white);
    padding: 1.2rem 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--dark);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.logo span { color: var(--primary); }

.nav-logo-img {
    height: 56px;
    width: 85px; 
    object-fit: contain;
}

.nav-links { display: flex; list-style: none; }
.nav-links li a {
    margin-left: 2.5rem;
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links li a:hover { color: var(--primary); }

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--dark);
    transition: var(--transition);
}

/* --- Hero Section --- */
.hero {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--dark) 0%, #1e293b 100%);
    color: var(--white);
    text-align: center;
}

.hero h1 { font-size: 3.5rem; margin-bottom: 1.2rem; line-height: 1.1; }
.hero p { font-size: 1.2rem; margin-bottom: 2.5rem; opacity: 0.8; max-width: 600px; margin-inline: auto; }

/* --- Buttons --- */
.btn {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn:hover { background: #1d4ed8; transform: translateY(-3px); box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4); }
.btn-small { padding: 0.6rem 1.5rem; font-size: 0.9rem; white-space: nowrap; }

/* --- Services Section --- */
.services { 
    position: relative; 
    padding: 100px 0; 
    background: var(--white); 
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('images/services_bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.70;
    z-index: 0;
}

.services .container {
    position: relative;
    z-index: 1;
}

/* Restores title centering for all sections */
.section-title { 
    text-align: center; 
    margin-bottom: 4rem; 
    font-size: 2.5rem; 
    color: var(--dark); 
}

/* Item Spacing for Services List */
.services ul li {
    margin-bottom: 0.75rem;
}
.services ul li:last-child {
    margin-bottom: 0;
}

.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2.5rem; }
.service-card {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(8px);
    padding: 3rem 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid #e2e8f0;
}

.service-card h3 { color: var(--dark); margin-bottom: 1rem; font-size: 1.4rem; }
.service-card:hover { transform: translateY(-10px); box-shadow: 0 15px 30px rgba(0,0,0,0.05); border-color: transparent; }

/* --- Subpage Content Box --- */
.content-card {
    background: rgba(15, 23, 42, 0.7); 
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 3rem;
    border-radius: 15px;
    color: var(--white);
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* --- Portfolio Section --- */
.portfolio { padding: 100px 0; background: var(--light); }
.portfolio-grid { 
    display: grid; 
    grid-template-columns: 1fr; /* Defaults to 1 stacked column for mobile */
    gap: 2rem; 
}
.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 300px;
    cursor: pointer;
}

.portfolio-img { 
    width: 100%; 
    height: 100%; 
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-img { transform: scale(1.1); }

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.85);
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center; /* Forces the text to center */
    padding: 1.5rem; /* Keeps text off the side walls */
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay h3 { font-size: 1.5rem; margin-bottom: 0.5rem; transform: translateY(20px); transition: var(--transition); }
.portfolio-overlay p { opacity: 0.8; transform: translateY(20px); transition: var(--transition); transition-delay: 0.1s; }
.portfolio-item:hover .portfolio-overlay h3, .portfolio-item:hover .portfolio-overlay p { transform: translateY(0); }

/* --- Contact Form --- */
.contact { padding: 100px 0; background: var(--white); }
.contact-form { max-width: 600px; margin: 0 auto; display: flex; flex-direction: column; }
.contact-form input, .contact-form textarea {
    margin-bottom: 1.5rem;
    padding: 1.2rem;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
.success-msg { text-align: center; background: #dcfce7; color: #166534; padding: 2rem; border-radius: 8px; }

/* --- Footer --- */
footer { background: var(--dark); color: var(--white); text-align: center; padding: 2rem 0; opacity: 0.9; }

/* --- Cookie Banner --- */
.cookie-banner {
    position: fixed;
    bottom: -100%;
    left: 0;
    width: 100%;
    background-color: var(--dark);
    color: var(--white);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    box-shadow: 0 -5px 20px rgba(0,0,0,0.15);
    transition: bottom 0.6s ease-in-out;
    z-index: 9999;
}

.cookie-banner.show { bottom: 0; }
.cookie-banner p { font-size: 0.95rem; opacity: 0.9; max-width: 800px; margin: 0; }

/* --- Responsive Media Queries --- */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .hamburger { display: block; }

    .content-card {
        padding: 2rem 1.5rem; /* internal padding on mobile */
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.4s;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
        padding: 2rem 0;
    }
    
    .nav-links.active { left: 0; }
    .nav-links li { margin: 1.5rem 0; }
    .nav-links li a { margin-left: 0; font-size: 1.2rem; }

    .hamburger.active .bar:nth-child(2) { opacity: 0; }
    .hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

    .cookie-banner {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
        gap: 1rem;
    }

}
/* 4 Columns for Desktop Screens */
@media (min-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(4, 1fr); 
    }
}