/* Custom Properties - Exact Color Palette & Typography */
:root {
    --color-primary: #1E3A8A;
    --color-secondary: #F8FAFC;
    --color-accent-1: #10B981;
    --color-accent-2: #FFFFFF;
    --color-neutral: #64748B;
    --color-text: #334155;
    
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    --transition: all 0.3s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-accent-2);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.25rem; }

@media (min-width: 768px) {
    h1 { font-size: 3rem; }
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-padding {
    padding: 5rem 0;
}

.text-center { text-align: center; }
.w-100 { width: 100%; }
.bg-secondary { background-color: var(--color-secondary); }
.bg-primary { background-color: var(--color-primary); color: var(--color-accent-2); }
.bg-primary h3, .bg-primary h4 { color: var(--color-accent-2); }

/* Buttons */
.btn-primary, .btn-accent {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 0.375rem;
    border: none;
    cursor: pointer;
    text-align: center;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-accent-2);
}
.btn-primary:hover {
    background-color: #172a6b;
    color: var(--color-accent-2);
}

.btn-accent {
    background-color: var(--color-accent-1);
    color: var(--color-accent-2);
}
.btn-accent:hover {
    background-color: #0d9668;
    color: var(--color-accent-2);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}
.logo span {
    color: var(--color-accent-1);
}

.nav-links {
    display: none;
    gap: 2rem;
    align-items: center;
}
.nav-links a:not(.btn-primary) {
    font-weight: 600;
    color: var(--color-neutral);
}
.nav-links a:not(.btn-primary):hover {
    color: var(--color-primary);
}

.hamburger {
    display: block;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
}

/* Mobile Menu Active */
.nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-accent-2);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

@media (min-width: 992px) {
    .hamburger { display: none; }
    .nav-links { display: flex; }
    .nav-links.active {
        position: static;
        flex-direction: row;
        width: auto;
        padding: 0;
        box-shadow: none;
    }
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-image: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    margin-top: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(30, 58, 138, 0.8), rgba(30, 58, 138, 0.5));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-accent-2);
    max-width: 800px;
}
.hero-content h1 {
    color: var(--color-accent-2);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}
.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .hero-content h1 { font-size: 4rem; }
}

/* Base wrapper for side-by-side elements */
.content-wrapper {
    display: grid;
    gap: 3rem;
    grid-template-columns: 1fr;
    align-items: center;
}
@media (min-width: 992px) {
    .content-wrapper { grid-template-columns: 1fr 1fr; }
}

/* About Section */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}
.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--color-secondary);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-sm);
}
.stat-number {
    color: var(--color-accent-1);
    font-size: 2rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}
.about-image img {
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
}

/* Services Section */
.grid-services {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 3rem;
}
@media (min-width: 768px) {
    .grid-services { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .grid-services { grid-template-columns: repeat(3, 1fr); }
}

.service-card {
    background: var(--color-accent-2);
    padding: 2.5rem 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
    border: 1px solid #e2e8f0;
}
.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent-1);
}
.service-card i {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

/* Portfolio Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}
.gallery-item {
    border-radius: 0.75rem;
    overflow: hidden;
    height: 250px;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}
.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.gallery-item:hover img {
    transform: scale(1.05);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.95);
    align-items: center;
    justify-content: center;
}
.lightbox-content {
    max-width: 90%;
    max-height: 90vh;
    border-radius: 0.5rem;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    animation: zoomIn 0.3s ease;
}
.close-lightbox {
    position: absolute;
    top: 30px;
    right: 40px;
    color: var(--color-accent-2);
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}
.close-lightbox:hover { color: var(--color-accent-1); }
@keyframes zoomIn {
    from {transform: scale(0.9); opacity: 0;}
    to {transform: scale(1); opacity: 1;}
}

/* Testimonials Carousel */
.carousel-container {
    max-width: 800px;
    margin: 3rem auto 0;
    position: relative;
    background: var(--color-accent-2);
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
}
.carousel-track {
    position: relative;
    min-height: 150px;
}
.testimonial-slide {
    display: none;
    animation: fadeIn 0.5s ease;
}
.testimonial-slide.active { display: block; }
@keyframes fadeIn {
    from {opacity: 0;}
    to {opacity: 1;}
}
.quote {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--color-neutral);
    margin-bottom: 1.5rem;
}
.author {
    font-weight: 600;
    color: var(--color-primary);
}
.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}
.carousel-controls button {
    background: var(--color-secondary);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--color-primary);
    transition: var(--transition);
}
.carousel-controls button:hover {
    background: var(--color-primary);
    color: var(--color-accent-2);
}

/* Contact Form */
.contact-form-container {
    background: var(--color-secondary);
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-primary);
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 0.375rem;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 0.3s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}
.form-help {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-neutral);
}
.form-help a {
    font-weight: 600;
    margin: 0 0.5rem;
}

.map-container {
    height: 100%;
    min-height: 400px;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
}
.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
@media (min-width: 768px) {
    .footer-content { grid-template-columns: repeat(3, 1fr); }
}
.footer-links ul {
    list-style: none;
}
.footer-links li {
    margin-bottom: 0.75rem;
}
.footer-links a {
    color: rgba(255,255,255,0.8);
}
.footer-links a:hover {
    color: var(--color-accent-1);
}
.social-icons {
    display: flex;
    gap: 1rem;
}
.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--color-accent-2);
}
.social-icons a:hover {
    background: var(--color-accent-1);
}
.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
}
.modal-content {
    background-color: var(--color-accent-2);
    padding: 2.5rem;
    border-radius: 1rem;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}
@keyframes slideUp {
    from {transform: translateY(50px); opacity: 0;}
    to {transform: translateY(0); opacity: 1;}
}
.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    color: var(--color-neutral);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}
.close-modal:hover { color: var(--color-primary); }