/* CSS Variables */
:root {
    --color-primary: #0d4d2d;
    --color-primary-light: #1a6b3f;
    --color-primary-dark: #082a1a;
    --color-accent: #28a745;
    --color-black: #000000;
    --color-dark-gray: #0a0a0a;
    --color-medium-gray: #1a1a1a;
    --color-light-gray: #2a2a2a;
    --color-text-primary: #ffffff;
    --color-text-secondary: #b8b8b8;
    --color-text-accent: #4ade80;
    --transition-speed: 0.3s;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--color-black);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-primary-dark);
    transition: all var(--transition-speed);
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.98);
    box-shadow: 0 4px 30px rgba(13, 77, 45, 0.3);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo {
    height: 32px;
    width: 32px;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-accent);
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-speed);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-speed);
}

.nav-link:hover {
    color: var(--color-text-accent);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-text-accent);
    transition: all var(--transition-speed);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-primary-dark) 50%, var(--color-black) 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(13, 77, 45, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(40, 167, 69, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: var(--spacing-lg) 0;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 300;
}

.hero-promoted {
    font-size: 1rem;
    color: var(--color-text-accent);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

/* Buttons */
.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-speed);
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-text-primary);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.5);
}

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

.btn-secondary:hover {
    background: var(--color-accent);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border-left: 2px solid var(--color-text-accent);
    border-bottom: 2px solid var(--color-text-accent);
    transform: rotate(-45deg);
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-primary) 100%);
    margin: 0 auto;
    border-radius: 2px;
}

/* About Section */
.about {
    background: linear-gradient(180deg, var(--color-black) 0%, var(--color-dark-gray) 100%);
}

.about-content {
    display: grid;
    gap: var(--spacing-lg);
}

.about-text p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.stat-card {
    background: var(--color-medium-gray);
    padding: var(--spacing-md);
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--color-primary-dark);
    transition: all var(--transition-speed);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(40, 167, 69, 0.2);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text-accent);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1rem;
    color: var(--color-text-secondary);
}

/* Solutions Section */
.solutions {
    background: var(--color-dark-gray);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.solution-card {
    background: var(--color-medium-gray);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 1px solid var(--color-primary-dark);
    transition: all var(--transition-speed);
}

.solution-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(40, 167, 69, 0.2);
}

.solution-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-accent);
}

.solution-icon svg {
    width: 100%;
    height: 100%;
}

.solution-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

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

/* =================================
   ManufactureERP Platform Section
   ================================= */

.manufacture-erp {
    padding: 100px 0;
    background-color: #0a0a0a; /* A slightly different dark background */
}

.section-subtitle {
    max-width: 600px;
    margin: 15px auto 0;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

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

.erp-text h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 20px;
}

.erp-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 30px;
    color: var(--color-text-secondary);
}

.erp-text ul {
    list-style: none;
    padding: 0;
    margin-bottom: 40px;
}

.erp-text ul li {
    display: flex;
    align-items: center;
    font-size: 1.05rem;
    margin-bottom: 15px;
    color: var(--color-text-secondary);
}

.erp-text ul li svg {
    width: 20px;
    height: 20px;
    margin-right: 15px;
    color: var(--color-text-accent);
    flex-shrink: 0;
}

.erp-visual {
    perspective: 1500px;
}

.visual-card {
    background: var(--color-medium-gray);
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    border: 1px solid var(--color-primary-dark);
    transform: rotateY(-15deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.erp-visual:hover .visual-card {
    transform: rotateY(0) rotateX(0);
}

.card-header {
    padding: 12px;
    background: var(--color-light-gray);
    border-bottom: 1px solid var(--color-primary-dark);
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    display: flex;
    gap: 8px;
}

.card-header span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #4a4a4a;
}

.card-body {
    padding: 25px;
}

.mock-chart {
    display: flex;
    gap: 10px;
    height: 120px;
    align-items: flex-end;
    border-bottom: 2px solid var(--color-light-gray);
    padding-bottom: 20px;
    margin-bottom: 25px;
}

.mock-chart .bar {
    flex-grow: 1;
    background-color: var(--color-primary-dark);
    border-radius: 4px 4px 0 0;
    animation: grow 1.5s ease-out forwards;
    transform-origin: bottom;
}

.mock-chart .bar:nth-child(2) { background-color: #0c3a23; }
.mock-chart .bar:nth-child(3) { background-color: #0f4c2d; }
.mock-chart .bar:nth-child(4) { background-color: #14633c; }
.mock-chart .bar:nth-child(5) { background-color: #28a745; }

.mock-line {
    height: 12px;
    background-color: var(--color-light-gray);
    border-radius: 6px;
    margin-bottom: 15px;
}
.mock-line.short {
    width: 70%;
}

@keyframes grow {
    from { transform: scaleY(0); }
    to { transform: scaleY(1); }
}

.erp-actions {
    margin-top: 40px;
}

.erp-sub-links {
    display: flex;
    gap: 20px;
    margin-top: 25px;
    align-items: center;
    justify-content: flex-start;
}

.sub-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed);
    padding: 8px 0;
    position: relative;
}

.sub-link:hover {
    color: var(--color-text-accent);
}

.sub-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform var(--transition-speed);
}


/* Contact Section */
.contact {
    background: linear-gradient(180deg, var(--color-dark-gray) 0%, var(--color-black) 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-accent);
}

.contact-info p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.contact-details {
    margin: var(--spacing-md) 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.contact-item svg {
    width: 24px;
    height: 24px;
    color: var(--color-text-accent);
}

.promoted-by {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-primary-dark);
}

.group-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-text-accent);
    margin-top: var(--spacing-xs);
}

/* Contact Form */
.contact-form-container {
    background: var(--color-medium-gray);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 1px solid var(--color-primary-dark);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    padding: 1rem;
    background: var(--color-light-gray);
    border: 1px solid var(--color-primary-dark);
    border-radius: 8px;
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-speed);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    padding: var(--spacing-sm);
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-message.success {
    background: rgba(40, 167, 69, 0.1);
    border: 1px solid var(--color-accent);
    color: var(--color-text-accent);
    display: block;
}

.form-message.error {
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid #dc2626;
    color: #ef4444;
    display: block;
}

/* Footer */
.footer {
    background: var(--color-black);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-primary-dark);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-brand h3 {
    font-size: 1.3rem;
    color: var(--color-text-accent);
    margin-bottom: var(--spacing-xs);
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.footer-copy {
    text-align: right;
}

.footer-copy p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin: 0.25rem 0;
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--color-primary-dark);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-copy {
        text-align: center;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

/* Responsive adjustments for ERP section */
@media (max-width: 992px) {
    .erp-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .erp-visual {
        order: -1; /* Move visual to the top on mobile */
    }
    .visual-card {
        transform: none;
    }

    .erp-actions {
        text-align: center;
    }
    .erp-sub-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
}