/* ===================================
   CSS Reset & Base Styles
   =================================== */

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

:root {
    --primary-green: #00D968;
    --dark-green: #00B856;
    --light-green: #E8F9F0;
    --text-dark: #1A1A1A;
    --text-gray: #666666;
    --text-light: #999999;
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --border-light: #E5E7EB;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

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

a:hover {
    color: var(--dark-green);
}

/* ===================================
   Layout
   =================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-gray);
}

/* ===================================
   Navigation
   =================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
}

.logo svg {
    flex-shrink: 0;
}

.logo-text {
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-menu li a {
    color: var(--text-gray);
    font-weight: 500;
    font-size: 0.938rem;
    transition: var(--transition);
}

.nav-menu li a:hover {
    color: var(--text-dark);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* ===================================
   Buttons
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.938rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--dark-green);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 217, 104, 0.3);
}

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

.btn-secondary:hover {
    border-color: var(--primary-green);
    color: var(--primary-green);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

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

/* ===================================
   Hero Section
   =================================== */

.hero {
    padding: 10rem 0 6rem;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--light-green);
    color: var(--primary-green);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.highlight {
    color: var(--primary-green);
    position: relative;
    display: inline-block;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    padding: 3rem 0;
    border-top: 1px solid var(--border-light);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.938rem;
    color: var(--text-gray);
}

/* ===================================
   Features Grid
   =================================== */

.features-grid {
    padding: 6rem 0;
    background: var(--bg-white);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2.5rem;
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-green);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-green);
    border-radius: 12px;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card p {
    font-size: 0.938rem;
    line-height: 1.8;
    color: var(--text-gray);
}

/* ===================================
   How It Works
   =================================== */

.how-it-works {
    padding: 6rem 0;
    background: var(--bg-light);
}

.process-step {
    display: grid;
    grid-template-columns: 60px 1fr 400px;
    gap: 3rem;
    align-items: start;
    margin-bottom: 5rem;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 30px;
    top: 60px;
    bottom: -60px;
    width: 2px;
    background: var(--border-light);
}

.process-step.reverse {
    grid-template-columns: 60px 400px 1fr;
}

.process-step.reverse .step-content {
    order: 3;
}

.process-step.reverse .step-visual {
    order: 2;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-green);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 217, 104, 0.3);
    position: relative;
    z-index: 1;
}

.step-content h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.step-content p {
    margin-bottom: 1.5rem;
    line-height: 1.9;
    font-size: 1rem;
}

.step-visual {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-light);
}

.step-visual svg {
    max-width: 100%;
    height: auto;
}

/* ===================================
   Technology Section
   =================================== */

.technology-section {
    padding: 6rem 0;
    background: var(--bg-white);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2.5rem;
}

.tech-card {
    padding: 2.5rem;
    background: var(--bg-light);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.tech-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.tech-header svg {
    flex-shrink: 0;
}

.tech-header h3 {
    margin-bottom: 0;
}

.tech-card p {
    font-size: 0.938rem;
    line-height: 1.9;
    margin-bottom: 1.25rem;
}

.tech-card p:last-child {
    margin-bottom: 0;
}

/* ===================================
   Applications Section
   =================================== */

.applications-section {
    padding: 6rem 0;
    background: var(--bg-light);
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.application-card {
    padding: 2.5rem;
    background: var(--bg-white);
    border-radius: 12px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.application-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-green);
}

.application-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-green);
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.application-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.application-card p {
    font-size: 0.938rem;
    line-height: 1.9;
    margin-bottom: 1.25rem;
}

.application-card p:last-child {
    margin-bottom: 0;
}

/* ===================================
   Specifications Section
   =================================== */

.specifications-section {
    padding: 6rem 0;
    background: var(--bg-white);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2.5rem;
}

.spec-category {
    padding: 2.5rem;
    background: var(--bg-light);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.spec-category h3 {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-green);
}

.spec-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.spec-item {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-white);
    border-radius: 8px;
}

.spec-label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.938rem;
}

.spec-value {
    color: var(--text-gray);
    font-size: 0.938rem;
}

/* ===================================
   Contact Section
   =================================== */

.contact-section {
    padding: 6rem 0;
    background: var(--bg-light);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.contact-description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 3rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 3rem;
}

.contact-detail-item {
    display: flex;
    gap: 1rem;
    align-items: start;
}

.contact-detail-item svg {
    flex-shrink: 0;
    margin-top: 4px;
}

.contact-detail-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-detail-item p {
    font-size: 0.938rem;
    margin-bottom: 0;
}

.demo-benefits {
    padding: 2rem;
    background: var(--bg-white);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.demo-benefits h4 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.demo-benefits ul {
    list-style: none;
    padding: 0;
}

.demo-benefits li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.75rem;
    color: var(--text-gray);
    font-size: 0.938rem;
    line-height: 1.6;
}

.demo-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: 700;
}

.contact-form-wrapper {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

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

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

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-size: 0.938rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    font-size: 0.938rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(0, 217, 104, 0.1);
}

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

.checkbox-group {
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    gap: 0.75rem;
    align-items: start;
    cursor: pointer;
    font-weight: 400;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-label span {
    font-size: 0.875rem;
    color: var(--text-gray);
    line-height: 1.6;
}

.form-note {
    grid-column: 1 / -1;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.form-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 3rem;
}

.form-message svg {
    margin-bottom: 1.5rem;
}

.form-message h3 {
    margin-bottom: 1rem;
}

.form-message p {
    margin-bottom: 0;
}

.form-message.success h3 {
    color: var(--primary-green);
}

.form-message.error h3 {
    color: #FF6B6B;
}

/* ===================================
   Footer
   =================================== */

.footer {
    background: var(--text-dark);
    color: var(--text-light);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1.5rem;
}

.footer-brand .logo svg path,
.footer-brand .logo svg circle {
    stroke: var(--primary-green);
}

.footer-brand .logo-text {
    color: white;
}

.footer-description {
    font-size: 0.938rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.footer-legal {
    font-size: 0.875rem;
    line-height: 1.8;
    color: var(--text-light);
}

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

.footer-column h4 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1rem;
}

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

.footer-column li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--text-light);
    font-size: 0.938rem;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--primary-green);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.footer-disclaimer {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    max-width: 800px;
    margin: 1rem auto 0;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }

    .tech-grid,
    .specs-grid {
        grid-template-columns: 1fr;
    }

    .process-step,
    .process-step.reverse {
        grid-template-columns: 60px 1fr;
    }

    .step-visual {
        display: none;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .nav-menu {
        display: none;
    }

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

    .hero {
        padding: 8rem 0 4rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .grid,
    .applications-grid {
        grid-template-columns: 1fr;
    }

    .process-step {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .step-number {
        margin-bottom: 1rem;
    }

    .process-step::after {
        display: none;
    }

    .contact-form {
        grid-template-columns: 1fr;
    }

    .contact-form-wrapper {
        padding: 2rem;
    }

    .spec-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .feature-card,
    .tech-card,
    .application-card,
    .spec-category {
        padding: 1.5rem;
    }

    .btn-large {
        padding: 0.875rem 1.5rem;
    }
}

/* ===================================
   Animations
   =================================== */

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

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

/* ===================================
   Utility Classes
   =================================== */

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* ===================================
   Print Styles
   =================================== */

@media print {
    .navbar,
    .mobile-menu-toggle,
    .btn,
    .contact-form {
        display: none;
    }

    body {
        font-size: 12pt;
    }

    .container {
        max-width: 100%;
    }
}