/* CSS Reset & Base Styles */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #1a1a2e;
    --color-secondary: #16213e;
    --color-accent: #f5c518;
    --color-accent-hover: #e6b800;
    --color-dark-green: #0d4d4d;
    --color-light: #ffffff;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;

    --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-light);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

ul {
    list-style: none;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--color-primary);
}

.header-top {
    background-color: var(--color-secondary);
    padding: 8px 0;
    font-size: 12px;
}

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

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    color: var(--color-light);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.social-links a:hover {
    opacity: 1;
}

.secondary-links {
    display: flex;
    gap: 20px;
}

.secondary-links a {
    color: var(--color-light);
    opacity: 0.8;
    font-size: 12px;
    transition: opacity var(--transition-fast);
}

.secondary-links a:hover {
    opacity: 1;
}

.main-nav {
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-light);
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    color: var(--color-light);
    font-size: 14px;
    font-weight: 500;
    opacity: 0.9;
    transition: opacity var(--transition-fast);
}

.nav-links a:hover {
    opacity: 1;
}

.nav-links .highlight {
    color: var(--color-accent);
    font-weight: 600;
}

.nav-links .btn-contact {
    background-color: var(--color-accent);
    color: var(--color-primary);
    padding: 10px 24px;
    border-radius: 4px;
    font-weight: 600;
    opacity: 1;
    transition: background-color var(--transition-fast);
}

.nav-links .btn-contact:hover {
    background-color: var(--color-accent-hover);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-light);
    transition: transform var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-dark-green) 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    color: var(--color-light);
    margin-bottom: 40px;
}

.hero-small {
    display: block;
    font-size: 24px;
    font-weight: 300;
    opacity: 0.9;
    line-height: 1.4;
}

.hero-large {
    display: block;
    font-size: 72px;
    font-weight: 700;
    line-height: 1.1;
    margin: 10px 0;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 4px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateX(4px);
}

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

.btn-secondary:hover {
    background-color: var(--color-light);
    color: var(--color-primary);
}

.btn-large {
    padding: 20px 40px;
    font-size: 18px;
}

.btn svg {
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: translateX(4px);
}

/* Value Propositions */
.value-props {
    padding: 100px 0;
    background-color: var(--color-light);
}

.props-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.prop-card {
    text-align: center;
    padding: 40px 30px;
}

.prop-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background-color: var(--color-gray-100);
    border-radius: 50%;
    margin-bottom: 24px;
    color: var(--color-dark-green);
}

.prop-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.prop-card p {
    font-size: 15px;
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* Services Section */
.services {
    padding: 100px 0;
    background-color: var(--color-gray-100);
}

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

.section-header h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--color-gray-600);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    background-color: var(--color-light);
    padding: 32px 24px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    color: var(--color-dark-green);
    margin-bottom: 20px;
}

.service-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
    flex-grow: 1;
}

.service-arrow {
    font-size: 24px;
    color: var(--color-accent);
    font-weight: 300;
    transition: transform var(--transition-fast);
}

.service-card:hover .service-arrow {
    transform: translateX(8px);
}

/* Statistics Section */
.statistics {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-dark-green) 0%, var(--color-primary) 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item {
    color: var(--color-light);
}

.stat-number {
    font-size: 56px;
    font-weight: 700;
    line-height: 1;
    display: inline;
}

.stat-unit {
    font-size: 24px;
    font-weight: 300;
    margin-left: 4px;
}

.stat-label {
    display: block;
    font-size: 16px;
    font-weight: 400;
    opacity: 0.8;
    margin-top: 12px;
}

/* Clients Section */
.clients {
    padding: 80px 0;
    background-color: var(--color-light);
}

.clients-slider {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.client-logo {
    width: 150px;
    height: 60px;
    background-color: var(--color-gray-200);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-500);
    font-size: 14px;
    font-weight: 500;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background-color: var(--color-gray-100);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.cta p {
    font-size: 18px;
    color: var(--color-gray-600);
    margin-bottom: 40px;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-light);
    padding: 80px 0 40px;
}

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

.footer-brand .logo-text {
    margin-bottom: 20px;
    display: block;
}

.footer-brand p {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 24px;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    color: var(--color-light);
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.footer-social a:hover {
    opacity: 1;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--color-accent);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    font-size: 14px;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.footer-col a:hover {
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .props-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px 20px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .header-top {
        display: none;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-primary);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
    }

    .nav-links.active {
        display: flex;
    }

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

    .hero {
        padding-top: 100px;
        min-height: auto;
        padding-bottom: 80px;
    }

    .hero-large {
        font-size: 42px;
    }

    .hero-small {
        font-size: 18px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .props-grid {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .stat-number {
        font-size: 42px;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .cta h2 {
        font-size: 28px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .clients-slider {
        gap: 30px;
    }

    .client-logo {
        width: 120px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-large {
        font-size: 32px;
    }

    .hero-small {
        font-size: 16px;
    }

    .value-props,
    .services,
    .cta {
        padding: 60px 0;
    }

    .prop-card {
        padding: 30px 20px;
    }

    .service-card {
        padding: 24px 20px;
    }

    .btn {
        padding: 14px 24px;
        font-size: 14px;
    }

    .btn-large {
        padding: 16px 28px;
        font-size: 16px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-4 {
    margin-top: 1rem;
}

.mb-4 {
    margin-bottom: 1rem;
}