:root {
    --primary: #1e3a8a;
    /* Navy Blue */
    --primary-dark: #172554;
    --secondary: #dc2626;
    /* Accent Red */
    --text: #374151;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --white: #ffffff;
    --max-width: 1200px;
    --header-height: 80px;
}

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

body {
    font-family: 'Lato', sans-serif;
    color: var(--text);
    line-height: 1.6;
    background-color: var(--bg);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Playfair Display', serif;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

ul {
    list-style: none;
}

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    border: 2px solid var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--white);
}

.btn-white {
    background-color: var(--white);
    color: var(--primary);
    border: 2px solid var(--white);
}

.btn-white:hover {
    background-color: transparent;
    color: var(--white);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Header */
.header {
    height: var(--header-height);
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text);
}

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

.nav-list {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-list a {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text);
}

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

.btn-nav {
    padding: 10px 20px;
    background-color: var(--primary);
    color: var(--white) !important;
    border-radius: 4px;
}

.btn-nav:hover {
    background-color: var(--primary-dark);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* Hero */
.hero {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 80px;
    background-color: var(--bg-alt);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-image img {
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Services */
.services {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
}

.service-icon {
    color: var(--primary);
    width: 48px;
    height: 48px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
}

/* About */
.about {
    padding: 100px 0;
    background-color: var(--bg-alt);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image img {
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about-text h2 {
    font-size: 2.5rem;
}

.lead {
    font-size: 1.25rem;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.features-list {
    margin-top: 30px;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-weight: 700;
}

.features-list i {
    color: var(--secondary);
}

/* CTA */
.cta {
    padding: 80px 0;
    background-color: var(--primary);
    color: var(--white);
    text-align: center;
}

.cta h2 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Contact */
.contact {
    padding: 100px 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.info-item i {
    color: var(--primary);
    width: 24px;
    height: 24px;
    margin-top: 5px;
}

.info-item h4 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.contact-form {
    background: var(--bg-alt);
    padding: 40px;
    border-radius: 8px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

/* Footer */
.footer {
    background-color: #111827;
    color: #9ca3af;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col h3 {
    color: var(--white);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.footer-col h4 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 30px;
    text-align: center;
    font-size: 0.9rem;
}

.theme-switcher {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 12px 8px;
    border-radius: 999px;
    border: 1px solid rgba(15, 23, 42, 0.1);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.theme-btn {
    width: 20px;
    height: 20px;
    border-radius: 999px;
    cursor: pointer;
    border: 2px solid var(--bg-alt);
    box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.15);
    transition: transform 0.2s, box-shadow 0.2s;
}

.theme-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 0 2px rgba(15, 23, 42, 0.25);
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        padding: 0 20px;
    }

    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: transform 0.3s;
        z-index: 999;
    }

    .nav.active {
        transform: translateY(0);
    }

    .nav-list {
        flex-direction: column;
        width: 100%;
    }

    .nav-list li {
        width: 100%;
        text-align: center;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-content,
    .about-content,
    .contact-wrapper,
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-image,
    .about-image {
        order: -1;
    }
}