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

:root {
    --primary: #2E8B57;      /* Conservation green */
    --primary-dark: #1E6B47;
    --secondary: #1A5276;    /* Deep blue */
    --accent: #28B463;       /* Bright green */
    --light: #F7F9F9;
    --dark: #1C2833;
    --gray: #566573;
    --light-gray: #EAEDED;
    
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

section {
    padding: 80px 0;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.3rem; }

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background: rgba(46, 139, 87, 0.1);
    transform: translateY(-3px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    padding: 20px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary-dark);
    font-weight: 800;
    font-size: 1.4rem;
}

.logo i {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--primary);
}

.btn-nav {
    background: var(--primary);
    color: white !important;
    padding: 10px 24px;
    border-radius: 50px;
}

.btn-nav:hover {
    background: var(--primary-dark);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 700px;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.4)), 
                url('images/hero-bg.jpg') center/cover no-repeat;
    color: white;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 107, 71, 0.3) 0%, rgba(26, 82, 118, 0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 50px;
}

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

.hero-title {
    margin-bottom: 20px;
}

.highlight {
    color: #7FDBB6;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
}

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

.hero-stats {
    display: flex;
    gap: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 40px;
    max-width: 800px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: #7FDBB6;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 5px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

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

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    background: rgba(46, 139, 87, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.section-title {
    color: var(--dark);
}

/* Challenge Section */
.split-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.split-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--gray);
}

.pull-quote {
    border-left: 4px solid var(--accent);
    padding-left: 20px;
    margin: 30px 0;
    font-style: italic;
    font-size: 1.3rem;
    color: var(--secondary);
}

.split-image {
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #1E6B47, #1A5276);
    display: flex;
    align-items: flex-end;
    padding: 30px;
    color: white;
}

.image-overlay h3 {
    margin-bottom: 15px;
}

.image-overlay ul {
    list-style: none;
}

.image-overlay li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.image-overlay li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: #7FDBB6;
}

/* Solution Section */
.solution {
    background: var(--light);
}

.solution-content p {
    max-width: 800px;
    margin: 0 auto 40px;
    text-align: center;
    font-size: 1.1rem;
    color: var(--gray);
}

.solution-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 60px;
}

.flow-step {
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    flex: 1;
    min-width: 200px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.flow-step:hover {
    transform: translateY(-10px);
}

.flow-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.flow-step h4 {
    margin-bottom: 10px;
    color: var(--dark);
}

.flow-step p {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 0;
}

.flow-arrow {
    color: var(--accent);
    font-size: 1.5rem;
}

/* Why Open Section */
.intro-text {
    max-width: 800px;
    margin: 0 auto 60px;
    text-align: center;
    font-size: 1.2rem;
    color: var(--gray);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.why-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 5px solid var(--primary);
}

.why-card:hover {
    transform: translateY(-10px);
}

.why-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.why-card h3 {
    margin-bottom: 15px;
    color: var(--dark);
}

.why-card p {
    color: var(--gray);
}

.callout-box {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 50px;
    border-radius: 20px;
    text-align: center;
    margin-top: 40px;
}

.callout-box h2 {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.callout-box p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Architecture Section */
.architecture-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.stack-info h3 {
    margin-bottom: 20px;
    color: var(--secondary);
}

.stack-info p {
    margin-bottom: 20px;
    color: var(--gray);
}

.tech-list {
    background: var(--light);
    padding: 25px;
    border-radius: 15px;
    margin-top: 30px;
}

.tech-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.tech-item:last-child {
    border-bottom: none;
}

.tech-label {
    font-weight: 600;
    color: var(--dark);
}

.tech-value {
    color: var(--primary);
    font-weight: 500;
}

.architecture-diagram {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.diagram-container {
    position: relative;
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.main-node {
    background: var(--primary);
    color: white;
    padding: 25px 40px;
    border-radius: 15px;
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 2;
    box-shadow: 0 10px 30px rgba(46, 139, 87, 0.3);
}

.diagram-nodes {
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin-top: 40px;
}

.diagram-node {
    background: white;
    border: 2px solid var(--light-gray);
    padding: 20px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.diagram-node:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

.diagram-node:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    white-space: nowrap;
    margin-bottom: 10px;
}

.diagram-node i {
    font-size: 2rem;
    color: var(--primary);
}

.diagram-connections {
    position: absolute;
    width: 80%;
    height: 60px;
    display: flex;
    justify-content: space-around;
}

.connection {
    width: 1px;
    height: 100%;
    background: var(--light-gray);
    position: relative;
}

.connection:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: -3px;
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
}

.diagram-caption {
    text-align: center;
    margin-top: 40px;
    color: var(--gray);
}

/* Contact Section */
.contact {
    background: var(--light);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.contact-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-10px);
}

.contact-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.contact-card h3 {
    margin-bottom: 15px;
    color: var(--dark);
}

.contact-card p {
    color: var(--gray);
    margin-bottom: 25px;
}

.btn-contact {
    display: inline-block;
    padding: 12px 25px;
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

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

.contact-form {
    background: white;
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    max-width: 800px;
    margin: 0 auto;
}

.contact-form h3 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--secondary);
}

.form-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group input, .form-group select, .form-group textarea {
    padding: 15px;
    border: 1px solid var(--light-gray);
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    grid-column: 1 / -1;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer .logo {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer-tagline {
    opacity: 0.7;
    margin-bottom: 25px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

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

.link-group h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.link-group a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 12px;
    transition: var(--transition);
}

.link-group a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.newsletter-form {
    display: flex;
    margin-top: 15px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 50px 0 0 50px;
    font-family: var(--font-body);
}

.newsletter-form button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0 25px;
    border-radius: 0 50px 50px 0;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background: var(--primary-dark);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 10px;
}

.fa-heart {
    color: #E74C3C;
}

.partner-logos {
    text-align: center;
    margin-top: 40px;
}

.partner-label {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.logos {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.logo-placeholder {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
    .split-section, .architecture-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 30px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .solution-flow {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .form-group {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}