:root {
    /* Color Palette - Premium Dark Mode */
    --bg-main: #0B0C10; /* Deep dark background */
    --bg-alt: #12141A; /* Slightly lighter for sections */
    --bg-card: #1C1F26; /* Card backgrounds */
    --text-main: #E0E2E8;
    --text-muted: #A0A4B0;
    --accent-primary: #4A90E2; /* Vibrant Blue */
    --accent-hover: #357ABD;
    --accent-glow: rgba(74, 144, 226, 0.2);
    --border-color: #2A2E39;
    
    /* Typography */
    --font-main: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --container-width: 1200px;
    --section-pad: 100px 20px;
    --nav-height: 80px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography Utility */
h1, h2, h3, h4 {
    color: #FFFFFF;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--text-main);
}

.text-white { color: #FFFFFF; }
.text-center { text-align: center; }
.mb-4 { margin-bottom: 2rem; }
.mt-4 { margin-top: 2rem; }
.mt-auto { margin-top: auto; }
.w-100 { width: 100%; }

/* Containers */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-pad);
}

.bg-alt {
    background-color: var(--bg-alt);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #FFFFFF;
    box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
    color: #FFFFFF;
}

.btn-secondary {
    background-color: var(--bg-card);
    color: var(--text-main);
    border-color: var(--border-color);
}

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

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

.btn-outline:hover {
    background-color: rgba(74, 144, 226, 0.1);
    color: var(--accent-primary);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: rgba(11, 12, 16, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #FFFFFF;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn) {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
}

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

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

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-main);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    position: relative;
    padding: calc(var(--nav-height) + 120px) 20px 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.glow-bg {
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.15) 0%, rgba(11, 12, 16, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

.hero-container {
    max-width: 900px;
    text-align: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
}

.highlight {
    color: var(--accent-primary);
    background: linear-gradient(90deg, #4A90E2, #8E2DE2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 3rem;
}

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

/* Section Headers */
.section-header {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
}

.section-header.text-center .section-desc {
    margin-left: auto;
    margin-right: auto;
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.product-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border-color: rgba(74, 144, 226, 0.3);
}

.card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: rgba(74, 144, 226, 0.1);
    color: var(--accent-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(74, 144, 226, 0.3);
}

.card-title {
    font-size: 2rem;
}

.card-desc {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.feature-list {
    list-style: none;
    margin-bottom: 2rem;
}

.feature-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-main);
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

.roadmap-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1rem;
}

.roadmap-step {
    border-left: 2px solid var(--border-color);
    padding-left: 1.5rem;
    position: relative;
}

.roadmap-step::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent-primary);
}

.roadmap-step h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.roadmap-step p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin: 0;
}

/* Methodology Grid */
.methodology-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.method-card {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem;
    transition: transform var(--transition-smooth);
}

.method-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.method-icon {
    font-size: 3rem;
    font-weight: 800;
    color: rgba(74, 144, 226, 0.2);
    margin-bottom: 1rem;
    line-height: 1;
}

.method-card h3 {
    font-size: 1.5rem;
}

.method-stage {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

.method-card p {
    color: var(--text-muted);
}

/* Security Section */
.security-wrapper {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.security-content {
    flex: 1;
}

.security-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.shield-icon {
    color: var(--accent-primary);
    position: relative;
    z-index: 2;
}

.glow-ring {
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.2) 0%, rgba(11, 12, 16, 0) 70%);
    animation: pulse 4s infinite alternate;
    z-index: 1;
}

@keyframes pulse {
    0% { transform: scale(0.8); opacity: 0.5; }
    100% { transform: scale(1.2); opacity: 1; }
}

.security-list {
    list-style: none;
}

.security-list li {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
    position: relative;
}

.security-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    top: -5px;
    font-size: 1.5rem;
    color: var(--accent-primary);
}

.security-list strong {
    color: #FFFFFF;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-form-wrapper {
    background-color: var(--bg-card);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-main);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: #FFFFFF;
    font-family: var(--font-main);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background-color: #15181E;
}

/* Footer */
.footer {
    background-color: #050508;
    padding: 4rem 20px 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
}

.footer-links a:hover {
    color: #FFFFFF;
}

.footer-bottom {
    text-align: center;
    color: #555A6A;
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-title {
        font-size: 3rem;
    }
    .product-grid, .contact-grid, .security-wrapper {
        grid-template-columns: 1fr;
    }
    .security-wrapper {
        flex-direction: column-reverse;
        gap: 2rem;
    }
    .security-visual {
        margin-bottom: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* Mobile menu toggled by JS */
        position: absolute;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background-color: var(--bg-main);
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        min-height: auto;
        padding-top: 150px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .methodology-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 2rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Animation Utilities added via JS */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* tran.bot 1st Phase Styles */

.tranbot-hero {
    min-height: 85vh;
}

.tranbot-glow {
    background: radial-gradient(circle, rgba(142, 45, 226, 0.15) 0%, rgba(11, 12, 16, 0) 70%);
}

.coming-soon-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(245, 166, 35, 0.1);
    color: #F5A623;
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid rgba(245, 166, 35, 0.3);
    margin-bottom: 2rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: #F5A623;
    border-radius: 50%;
    box-shadow: 0 0 0 rgba(245, 166, 35, 0.4);
    animation: pulse-orange 2s infinite;
}

@keyframes pulse-orange {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 166, 35, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(245, 166, 35, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 166, 35, 0); }
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-box {
    display: flex;
    gap: 1.5rem;
    background-color: var(--bg-main);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-top: 2rem;
}

.feature-icon {
    color: var(--accent-primary);
    flex-shrink: 0;
}

.feature-box h4 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.feature-box p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

.how-it-works-visual {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.step-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-fast);
}

.step-card.highlight-step {
    border-color: var(--accent-primary);
    background-color: rgba(74, 144, 226, 0.05);
}

.step-num {
    width: 40px;
    height: 40px;
    background-color: rgba(74, 144, 226, 0.1);
    color: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-card.highlight-step .step-num {
    background-color: var(--accent-primary);
    color: #FFF;
    box-shadow: 0 0 15px var(--accent-glow);
}

.step-text strong {
    display: block;
    color: #FFF;
    margin-bottom: 0.2rem;
}

.step-text span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.step-connector {
    width: 2px;
    height: 20px;
    background-color: var(--border-color);
    margin: 0 auto;
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.use-case-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem 1.5rem;
    transition: transform var(--transition-smooth), border-color var(--transition-smooth);
}

.use-case-card:hover {
    transform: translateY(-5px);
    border-color: rgba(142, 45, 226, 0.4);
}

.uc-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.use-case-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
}

.use-case-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

@media (max-width: 1200px) {
    .use-case-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .use-case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .use-case-grid {
        grid-template-columns: 1fr;
    }
}