:root {
    --primary-color: #0369a1; /* Professional deep blue */
    --primary-hover: #0284c7;
    --accent-color: #0ea5e9;
    --text-dark: #0f172a;
    --text-body: #475569;
    --text-light: #f8fafc;
    --bg-white: #ffffff;
    --bg-light: #f1f5f9;
    --border-color: #e2e8f0;
    
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-body);
    line-height: 1.6;
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-dark);
    line-height: 1.2;
    font-weight: 700;
}

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

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

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

.section-title {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-title h2 {
    font-size: 2.25rem;
    margin-bottom: 16px;
}

.section-title p {
    font-size: 1.125rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background-color: var(--text-light);
    color: var(--text-dark);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid transparent;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

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

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.main-nav a {
    color: var(--text-body);
    font-weight: 500;
}

.main-nav a.btn-primary {
    color: var(--bg-white);
}

.main-nav a:not(.btn):hover {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-dark);
    position: absolute;
    left: 0;
    transition: var(--transition);
}

.mobile-menu-btn span:nth-child(1) { top: 0; }
.mobile-menu-btn span:nth-child(2) { top: 9px; }
.mobile-menu-btn span:nth-child(3) { top: 18px; }

/* Hero Section */
.hero {
    position: relative;
    padding: 180px 0 140px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: var(--text-light);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/hero-city.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: -2;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.7) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero-content h1 {
    color: var(--text-light);
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 24px;
}

.hero-content h1 span {
    color: var(--accent-color);
}

.hero-content p {
    font-size: 1.25rem;
    color: #cbd5e1;
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.service-card {
    background: var(--bg-white);
    padding: 40px 32px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.95rem;
    margin-bottom: 24px;
    color: var(--text-body);
}

.service-link {
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.service-link:hover {
    color: var(--primary-hover);
}

/* ERP Section */
.erp-layout {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.erp-benefits h3, .erp-platforms h3 {
    margin-bottom: 24px;
    font-size: 1.5rem;
}

.benefit-list {
    list-style: none;
}

.benefit-list li {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.check-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-color);
    flex-shrink: 0;
    margin-top: 2px;
}

.benefit-list strong {
    display: block;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.platform-card {
    background: var(--bg-white);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.platform-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-color);
    transform: translateY(-4px);
}

.platform-card h4 {
    color: var(--primary-color);
    margin-bottom: 12px;
    font-size: 1.2rem;
}

.platform-card p {
    font-size: 0.9rem;
    color: var(--text-body);
}

/* Industry Section */
.industry-section {
    background-color: var(--bg-white);
    border-top: 1px solid var(--border-color);
}

.industry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    max-width: 900px;
    margin: 0 auto;
}

.tag {
    background-color: var(--bg-light);
    color: var(--text-dark);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* About Section */
.about-container {
    display: flex;
    align-items: center;
    gap: 64px;
}

.about-content {
    flex: 1;
}

.about-content h2 {
    font-size: 2.25rem;
    margin-bottom: 24px;
}

.about-content p {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.stat-item h4 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 0;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-visual {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: #94a3b8;
    padding: 80px 0 24px;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 64px;
}

.footer-logo {
    color: var(--bg-white);
    display: block;
    margin-bottom: 16px;
}

.footer-info p {
    margin-bottom: 24px;
    max-width: 400px;
}

.contact-details p {
    margin-bottom: 8px;
}

.contact-details strong {
    color: var(--bg-white);
}

.wa-link {
    color: #94a3b8;
}

.wa-link:hover {
    color: var(--bg-white);
}

.footer-links h4 {
    color: var(--bg-white);
    margin-bottom: 24px;
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #94a3b8;
}

.footer-links a:hover {
    color: var(--bg-white);
}

.copyright {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .about-container {
        flex-direction: column;
    }
    
    .hero-content h1 {
        font-size: 2.75rem;
    }

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

@media (max-width: 768px) {
    .header-container {
        padding: 0 16px;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--bg-white);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 40px;
        transition: var(--transition);
    }
    
    .main-nav.active {
        left: 0;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
    }
}