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

:root {
    --industrial-green: hsl(150, 45%, 28%);
    --industrial-green-light: hsl(150, 45%, 35%);
    --charcoal: hsl(150, 25%, 12%);
    --sage-green: hsl(150, 35%, 65%);
    --light-green: hsl(150, 25%, 93%);
    --foreground: hsl(150, 30%, 15%);
    --background: hsl(0, 0%, 100%);
    --border: hsl(150, 15%, 88%);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    padding: 5rem 0;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.animate-fade-in:nth-child(2) {
    animation-delay: 0.1s;
    opacity: 0;
}

.animate-fade-in:nth-child(3) {
    animation-delay: 0.2s;
    opacity: 0;
}

.animate-fade-in:nth-child(4) {
    animation-delay: 0.3s;
    opacity: 0;
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: white;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, hsla(150, 45%, 28%, 0.5), hsla(150, 55%, 22%, 0.5));
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.125rem);
    max-width: 800px;
    margin: 0 auto 2rem;
    opacity: 0.85;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

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

.btn-primary:hover {
    background: var(--industrial-green-light);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--sage-green);
    color: var(--foreground);
}

.btn-secondary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Tab Navigation */
.tab-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--foreground);
    cursor: pointer;
    padding: 1rem;
    position: absolute;
    right: 1rem;
    top: 0.5rem;
    z-index: 1001;
}

.tab-list {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem;
    padding: 1rem 0;
}

.tab-item {
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-weight: 500;
    color: var(--foreground);
    transition: var(--transition);
    border-radius: 0.375rem;
}

.tab-item:hover {
    background: var(--light-green);
}

.tab-item.active {
    background: var(--industrial-green);
    color: white;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .tab-list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        padding: 1rem;
        grid-template-columns: 1fr;
        gap: 0.5rem;
        border-bottom: 1px solid var(--border);
    }

    .tab-list.show {
        display: grid;
    }

    .tab-item {
        text-align: left;
        padding: 1rem;
    }
}

/* Section Banners */
.section-banner {
    width: 100%;
    height: 300px;
    background-size: cover;
    background-position: center;
    margin-bottom: 3rem;
}

.about-banner {
    background-image: url('images/about-bg.jpg');
}

.infrastructure-banner {
    background-image: url('images/infrastructure-bg.jpg');
}

.sustainability-banner {
    background-image: linear-gradient(135deg, hsla(150, 45%, 28%, 0.6), hsla(150, 55%, 22%, 0.5)), url('images/sustainability-bg.jpg');
}

/* Typography */
.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
}

.section-subtitle {
    font-size: 1.125rem;
    text-align: center;
    color: rgba(0, 0, 0, 0.7);
    max-width: 800px;
    margin: 0 auto 3rem;
}

.subsection-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin: 4rem 0 2rem;
}

/* About Section */
.about-section {
    background: var(--background);
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.section-text {
    font-size: 1.125rem;
    color: rgba(0, 0, 0, 0.8);
    margin-bottom: 2rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.info-card {
    background: var(--light-green);
    padding: 2rem;
    border-radius: 0.5rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.card-text {
    color: rgba(0, 0, 0, 0.8);
}

.mission-list {
    list-style: none;
    color: rgba(0, 0, 0, 0.8);
}

.mission-list li {
    margin-bottom: 0.5rem;
}

/* Infrastructure Section */
.infrastructure-section {
    background: var(--light-green);
}

.facilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto 4rem;
}

.facility-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: var(--background);
    padding: 1.25rem;
    border-radius: 0.5rem;
}

.facility-item i {
    color: var(--industrial-green);
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.industry-card {
    position: relative;
    height: 250px;
    border-radius: 0.5rem;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    cursor: pointer;
    transition: var(--transition);
}

.industry-card:hover {
    transform: scale(1.05);
}

.industry-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
}

.industry-name {
    color: white;
    font-size: 1.125rem;
    font-weight: 600;
}

/* Investment Section */
.investment-section {
    background: var(--background);
}

.investment-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto 3rem;
}

.investment-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 2rem;
    transition: var(--transition);
}

.investment-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.investment-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.investment-desc {
    color: rgba(0, 0, 0, 0.7);
}

.text-center {
    text-align: center;
}

.master-plan {
    background: var(--light-green);
    border-radius: 0.5rem;
    padding: 3rem 2rem;
    margin-top: 4rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--industrial-green);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: rgba(0, 0, 0, 0.7);
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    list-style: none;
    max-width: 900px;
    margin: 2rem auto 0;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: rgba(0, 0, 0, 0.8);
}

.bullet {
    width: 0.5rem;
    height: 0.5rem;
    background: var(--industrial-green);
    border-radius: 50%;
    flex-shrink: 0;
}

/* Sustainability Section */
.sustainability-section {
    background: var(--light-green);
}

.initiatives-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto 4rem;
}

.initiative-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 0.5rem;
    text-align: center;
}

.icon-large {
    font-size: 3rem;
    color: var(--industrial-green);
    margin-bottom: 1rem;
}

.initiative-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.initiative-desc {
    color: rgba(0, 0, 0, 0.7);
    font-size: 0.875rem;
}

.smart-features {
    background: rgba(0, 0, 0, 0.03);
    border-radius: 0.5rem;
    padding: 3rem 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

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

.smart-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--background);
    padding: 1rem;
    border-radius: 0.5rem;
    color: rgba(0, 0, 0, 0.8);
}

/* Founder Section */
.founder-section {
    background: var(--background);
}

.founder-card {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--light-green);
    border-radius: 0.5rem;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.founder-image {
    background-image: url('images/founder.jpg');
    background-size: cover;
    background-position: center;
    min-height: 400px;
}

.founder-content {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.founder-name {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.founder-role {
    font-size: 1.125rem;
    color: rgba(0, 0, 0, 0.7);
    margin-bottom: 1.5rem;
}

.founder-quote {
    font-size: 1.25rem;
    font-style: italic;
    color: rgba(0, 0, 0, 0.8);
    border-left: 4px solid var(--industrial-green);
    padding-left: 1rem;
    margin-bottom: 1.5rem;
}

.founder-contact {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--industrial-green);
    font-size: 1.125rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.founder-contact:hover {
    opacity: 0.8;
}

/* Contact Section */
.contact-section {
    background: var(--charcoal);
    color: white;
}

.contact-section .section-title,
.contact-section .section-subtitle {
    color: white;
}

.contact-section .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto 3rem;
}

.contact-item {
    text-align: center;
}

.contact-item .icon-large {
    color: var(--sage-green);
}

.contact-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.contact-text {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.contact-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--sage-green);
}

.footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .tab-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-banner {
        height: 200px;
    }

    .founder-card {
        grid-template-columns: 1fr;
    }

    .founder-image {
        min-height: 300px;
    }

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

    .industry-card {
        height: 180px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}