:root {
    /* Core Colors */
    --bg-dark: #09090b; /* Zinc 950 */
    --bg-surface: #121214; 
    --bg-surface-light: #18181b; /* Zinc 900 */
    --text-primary: #f8fafc; /* Slate 50 */
    --text-secondary: #a1a1aa; /* Zinc 400 */
    
    /* Brand Accents - Vibrant Blue to Cyber Cyan */
    --accent-blue: #3b82f6; 
    --accent-indigo: #0ea5e9;
    --accent-gradient: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
    --accent-glow: rgba(59, 130, 246, 0.4);
    
    /* Layout Variables */
    --border-color: #27272a; /* Zinc 800 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    
    /* Shadows */
    --shadow-glow: 0 0 40px var(--accent-glow);
    --shadow-card: 0 10px 30px rgba(0,0,0,0.4);
    
    /* Animation */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Typography Enhancements */
h1, h2, h3, h4, h5 {
    line-height: 1.2;
    font-weight: 700;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Utilitles */
.text-center { text-align: center; }
.text-muted { color: #71717a; } /* Zinc 500 */
.text-secondary { color: var(--text-secondary); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 0.75rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.mb-2 { margin-bottom: 0.75rem; }
.w-100 { width: 100%; }

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

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.6);
}

.btn-secondary {
    background: var(--bg-surface-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: #27272a;
    border-color: #3f3f46;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--accent-gradient);
    border-color: transparent;
}

/* Navbar */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 0;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}

#navbar.scrolled {
    background: rgba(9, 9, 11, 0.85); /* Zinc 950 */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding: 16px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--text-primary);
    background: linear-gradient(to right, #ffffff, #a1a1aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 32px;
}

.nav-links li a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger .line {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    margin: 6px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* Section Containers */
.section {
    padding: 120px 24px;
    position: relative;
}

.section-dark {
    background: var(--bg-surface);
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.title-underline {
    height: 4px;
    width: 60px;
    background: var(--accent-gradient);
    margin: 0 auto;
    border-radius: 4px;
}

.title-underline.left {
    margin: 0;
}

.title-underline.error {
    background: #ef4444;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
}

.hero-content {
    max-width: 900px;
    z-index: 10;
    padding: 0 24px;
}

.hero-section h1 {
    font-size: 4.5rem;
    margin-bottom: 24px;
    letter-spacing: -1.5px;
    line-height: 1.1;
}

.hero-section .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* Background Glowing Orbs */
.glow-orb {
    position: absolute;
    width: 50vw;
    height: 50vw;
    border-radius: 50%;
    filter: blur(120px);
    z-index: 1;
    opacity: 0.15;
    pointer-events: none;
}

.orb-1 {
    background: var(--accent-blue);
    top: -10vw;
    left: -10vw;
}

.orb-2 {
    background: var(--accent-indigo);
    bottom: -10vw;
    right: -10vw;
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 60px;
}

.about-card {
    background: var(--bg-surface-light);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-blue);
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
}

.icon-box {
    font-size: 2.5rem;
    margin-bottom: 20px;
    background: rgba(255,255,255,0.05);
    height: 60px;
    width: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

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

.about-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Split Layout Modules */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.align-start { align-items: start; }

.lead-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Product Section Specs */
.product-specs {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: rgba(255,255,255,0.03);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.spec-item:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
}

.spec-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.spec-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* High-tech Image Wrapper */
.image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    /* Box shadow to give it physical depth */
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}

.product-image {
    width: 100%;
    height: auto;
    display: block;
    position: relative;
    z-index: 2;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255,255,255,0.1);
}

.img-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    height: 90%;
    background: var(--accent-glow);
    filter: blur(80px);
    z-index: 1;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 40px 30px;
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, var(--bg-surface-light) 0%, var(--bg-dark) 100%);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: rgba(59, 130, 246, 0.5);
    background: linear-gradient(180deg, #1f1f22 0%, var(--bg-dark) 100%);
    transform: translateY(-8px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Problem & Solution Area */
.problem-box {
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-md);
    padding: 32px;
}

.cross-list {
    list-style: none;
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cross-list li {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-secondary);
    font-weight: 500;
}

.cross-list li::before {
    content: "✖";
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.error-text { color: #ef4444; font-weight: 600; }

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.tag {
    padding: 10px 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.tag:hover {
    background: rgba(255,255,255,0.08);
    border-color: #52525b;
}

.solution-card {
    background: var(--bg-surface-light);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    position: relative;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 24px 38px 3px rgba(0, 0, 0, 0.14);
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--accent-gradient);
}

.solution-header {
    padding: 40px;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 100%);
}

.solution-header h3 {
    font-size: 2rem;
    color: var(--text-primary);
}

.solution-body {
    padding: 40px;
}

.check-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.check-list li::before {
    content: "✓";
    color: #10b981;
    font-weight: bold;
    font-size: 1rem;
    background: rgba(16, 185, 129, 0.1);
    height: 28px;
    width: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.check-list li strong {
    color: var(--text-primary);
    margin-right: 6px;
    font-weight: 600;
}

/* Patent Banner */
.pt-pb-lg { padding: 140px 24px; }

.patent-banner {
    background: linear-gradient(145deg, #18181b 0%, #09090b 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 80px 40px;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}

.patent-banner::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
}

.patent-icon {
    font-size: 4rem;
    margin-bottom: 24px;
    filter: drop-shadow(0 0 10px rgba(255,255,255,0.2));
}

.patent-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: rgba(0,0,0,0.4);
    padding: 30px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,255,255,0.05);
    text-align: left;
}

.patent-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 16px;
}

.patent-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.plabel { color: var(--text-secondary); font-weight: 500; }

.pvalue { 
    font-weight: 700; 
    font-family: 'JetBrains Mono', monospace; 
    font-size: 1.1rem; 
}

.status-granted {
    color: #10b981;
    background: rgba(16, 185, 129, 0.15);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.95rem;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.patent-desc {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 1.5rem auto 0;
}

/* Business Model */
.model-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.m-card {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    padding: 50px 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
}

.m-card:hover {
    border-color: rgba(59, 130, 246, 0.4);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.m-icon {
    font-size: 3.5rem;
    margin-bottom: 24px;
}

/* Leadership Profile */
.profile-card {
    background: var(--bg-surface-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 50px;
    display: flex;
    flex-direction: column;
}

.avatar-placeholder {
    width: 120px;
    height: 120px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 24px;
    box-shadow: 0 10px 25px var(--accent-glow);
}

.profile-info .name {
    font-size: 1.8rem;
    margin-bottom: 4px;
}

.profile-info .role {
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.profile-details {
    width: 100%;
}

.detail-group {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.detail-group:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.detail-group h4 {
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

/* Status Grid */
.status-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.s-card {
    background: var(--bg-surface-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.s-card:hover {
    border-color: #3f3f46;
    transform: translateY(-4px);
}

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

.s-icon { 
    font-size: 1.8rem; 
    margin-bottom: 16px; 
}

.s-label { 
    color: var(--text-secondary); 
    font-size: 0.95rem; 
    margin-bottom: 8px; 
    font-weight: 500;
}

.s-value { 
    font-weight: 700; 
    font-size: 1.25rem; 
    color: var(--text-primary);
}

.text-accent { color: var(--accent-blue); }

/* Contact Section */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.8fr;
    gap: 0;
    background: var(--bg-surface-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.contact-info {
    padding: 60px 40px;
    background: rgba(255,255,255,0.02);
    border-right: 1px solid var(--border-color);
}

.contact-info h3 {
    font-size: 1.8rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.i-icon {
    font-size: 1.5rem;
    background: rgba(255,255,255,0.05);
    width: 54px; height: 54px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.contact-form {
    padding: 60px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 16px 20px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* Footer */
.footer {
    padding: 60px 24px 40px;
    background: #000;
    border-top: 1px solid var(--border-color);
}

.text-sm { font-size: 0.95rem; }

/* Animations & Interactivity */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Responsive Adjustments */
@media (max-width: 1024px) {
    .split-layout { gap: 40px; }
    .hero-section h1 { font-size: 3.5rem; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .contact-info { border-right: none; border-bottom: 1px solid var(--border-color); }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 80px;
        flex-direction: column;
        background: rgba(18, 18, 20, 0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.4s ease-in-out;
        padding: 40px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active { right: 0; }
    .nav-links li { margin: 20px 0; }
    .hamburger { display: block; }
    
    .hamburger.active .line:nth-child(2) { opacity: 0; }
    .hamburger.active .line:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .hamburger.active .line:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
    
    .hero-section h1 { font-size: 2.8rem; }
    .hero-buttons { flex-direction: column; width: 100%; }
    .hero-buttons .btn { width: 100%; }
    
    .split-layout { grid-template-columns: 1fr; }
    
    .section { padding: 80px 24px; }
    
    .status-grid { grid-template-columns: 1fr; }
    
    .contact-form { padding: 40px 24px; }
    .contact-info { padding: 40px 24px; }
}

@media (max-width: 480px) {
    .hero-section h1 { font-size: 2.2rem; }
    .patent-banner { padding: 40px 20px; }
    .m-card { padding: 30px 20px; }
    .profile-card { padding: 30px 20px; }
    .section-title { font-size: 2rem; }
}