/* Base Styles */
:root {
    /* Colors */
    --primary: #4a4a4a;
    --primary-light: #5a5a5a;
    --secondary: #7a7a7a;
    --secondary-dark: #6a6a6a;
    --text: #e0e0e0;
    --text-light: #b0b0b0;
    --text-lighter: #888888;
    --background: #2a2a2a;
    --background-light: #3a3a3a;
    --border: #555555;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.6;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text);
    background-color: var(--background);
    margin: 0;
    padding: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: #e0e0e0;
}

h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: #f0f0f0;
}

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

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-light);
}

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

a:hover {
    color: var(--secondary-dark);
}

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

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
    background-color: var(--background);
}

.section.bg-light {
    background-color: var(--background-light);
}

/* Buttons */
.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.button.primary {
    background-color: #5a5a5a;
    color: #ffffff;
    border-color: #5a5a5a;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.button.primary:hover {
    background-color: #6a6a6a;
    border-color: #6a6a6a;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);
}

.button.secondary {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.button.secondary:hover {
    background-color: rgba(74, 74, 74, 0.1);
    transform: translateY(-2px);
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #4a4a4a;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    padding: 1rem 0;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    background-color: transparent;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: var(--transition);
}

.logo img {
    height: 99px;
    width: auto;
    max-width: 297px;
    object-fit: contain;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #ffffff;
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a:focus::after {
    width: 100%;
}

.nav-links .button {
    margin-left: var(--spacing-sm);
}

.nav-links .button.primary {
    background-color: #ffffff;
    color: #4a4a4a;
    border-color: #ffffff;
}

.nav-links .button.primary:hover {
    background-color: #e0e0e0;
    color: #4a4a4a;
}

.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-button span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #ffffff;
    margin: 5px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-top: 100px;
    padding-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.7) 0%, rgba(42, 42, 42, 0.8) 100%), url('https://images.unsplash.com/photo-1464822759023-fed622ff2c3b?w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero h1 {
    font-size: 3.5rem;
    max-width: 800px;
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
    color: #f0f0f0;
}

.hero .lead {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: var(--spacing-lg);
    color: #d0d0d0;
    text-shadow: 1px 1px 6px rgba(0, 0, 0, 0.8);
    font-weight: 500;
}

.mountain-shape {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 150px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%232a2a2a" fill-opacity="1" d="M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-light);
}

.about-image {
    position: relative;
    height: 100%;
    min-height: 400px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* Sectors Section */
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

@media (min-width: 1200px) {
    .sectors-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.sector-card {
    background: #353535;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.sector-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.6);
}

.sector-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.sector-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.sector-card:hover .sector-image img {
    transform: scale(1.1);
}

.sector-content {
    padding: var(--spacing-lg);
    text-align: center;
    flex: 1;
}

.sector-content h3 {
    color: #e0e0e0;
    margin-bottom: var(--spacing-sm);
}

.sector-content p {
    margin-bottom: 0;
}

/* Approach Section */
#approach {
    background: linear-gradient(rgba(42, 42, 42, 0.92), rgba(42, 42, 42, 0.92)), url('https://images.unsplash.com/photo-1519681393784-d120267933ba?w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.offer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

@media (min-width: 1200px) {
    .offer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.offer-card {
    background: #303030;
    padding: var(--spacing-xl);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    text-align: center;
    transition: var(--transition);
}

.offer-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.6);
}

.offer-icon {
    margin-bottom: var(--spacing-md);
    color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
}

.offer-icon svg {
    width: 64px;
    height: 64px;
    stroke: #ffffff;
    transition: var(--transition);
}

.offer-icon-image img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    transition: var(--transition);
}

.offer-card:hover .offer-icon svg {
    stroke: #f0f0f0;
    transform: scale(1.1);
}

.offer-card:hover .offer-icon-image img {
    transform: scale(1.1);
}

.offer-card h3 {
    color: #e0e0e0;
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.offer-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Contact Section */
.contact-info-center {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    background: #303030;
    padding: var(--spacing-xl);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    text-align: center;
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.6);
}

.contact-icon {
    margin-bottom: var(--spacing-md);
    color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-icon svg {
    width: 64px;
    height: 64px;
    stroke: #ffffff;
    transition: var(--transition);
}

.contact-item:hover .contact-icon svg {
    stroke: #f0f0f0;
    transform: scale(1.1);
}

.contact-item h3 {
    color: #e0e0e0;
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.contact-item p {
    margin-bottom: var(--spacing-xs);
    color: var(--text-light);
    font-size: 1rem;
}

.contact-item a {
    color: #b0b0b0;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.contact-item a:hover {
    color: #d0d0d0;
    text-decoration: underline;
}

/* Footer */
.footer {
    background-color: var(--primary);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-logo-container {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.footer-logo-img {
    height: 80px;
    width: auto;
    max-width: 240px;
    object-fit: contain;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    font-size: 1rem;
}

.footer-links a:hover {
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .about-image {
        order: -1;
        min-height: 300px;
    }
    
    .contact-info-center {
        grid-template-columns: 1fr;
    }
    
    .hero {
        background-attachment: scroll;
    }
    
    #approach {
        background-attachment: scroll;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100px;
        left: 0;
        right: 0;
        background: #4a4a4a;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-button {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .lead {
        font-size: 1.1rem;
    }
    
    .sectors-grid {
        grid-template-columns: 1fr;
    }
    
    .sector-image {
        height: 250px;
    }
    
    .about-image {
        min-height: 250px;
    }
    
    .logo img {
        height: 70px;
        max-width: 210px;
    }
    
    .nav {
        height: 70px;
    }
    
    .nav-links {
        top: 90px;
    }
    
    .hero {
        padding-top: 90px;
    }
    
    .footer-content {
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero {
        padding-top: 100px;
        padding-bottom: 100px;
    }
    
    .step {
        padding-left: 60px;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
}