:root {
    /* Fonts */
    --font-main: 'Inter', sans-serif;

    /* Dark Theme (Default) */
    --color-bg: #182642;
    /* Dark Blue from Logo */
    --color-bg-secondary: #203152;
    /* Slightly lighter than bg */
    --color-text: #e6f1ff;
    --color-text-muted: #94a3b8;
    --color-primary: #7CDCE7;
    /* Cyan from Logo */
    --color-secondary: #007bff;
    /* Blue */
    --color-accent: #7f5af0;
    --bg-card: rgba(17, 34, 64, 0.7);
    --border-color: rgba(230, 241, 255, 0.1);

    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
    --radius: 12px;
}

[data-theme="light"] {
    --color-bg: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-text: #0a192f;
    --color-text-muted: #4a5568;
    --color-primary: #0070f3;
    /* Darker blue for light mode contrast */
    --color-secondary: #00c6ff;
    --color-accent: #6200ea;
    --bg-card: #ffffff;
    --border-color: rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    /* Subtle radial gradient for that 'Big Tech' top glow */
    background-image: radial-gradient(circle at 50% 0%, rgba(100, 255, 218, 0.08), transparent 50%);
    color: var(--color-text);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

[data-theme="light"] body {
    background-image: radial-gradient(circle at 50% 0%, rgba(0, 112, 243, 0.05), transparent 50%);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    font-family: inherit;
}

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

.text-gradient {
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
    background: var(--color-primary);
    color: #0a192f;
    box-shadow: 0 0 15px rgba(100, 255, 218, 0.3);
    /* Initial glow */
}

[data-theme="light"] .btn-primary {
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(0, 118, 255, 0.39);
}

.btn-outline {
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
    margin-left: 10px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(100, 255, 218, 0.4);
}

[data-theme="light"] .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(0, 118, 255, 0.23);
}

/* Header */
.header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 25, 47, 0.95);
    /* More solid professional look */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s, box-shadow 0.3s;
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .header {
    background: rgba(255, 255, 255, 0.98);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

/* Smart invert for logo in dark mode: 
   Inverts lightness (Dark->Light) but rotates hue back 180deg 
   to keep the Cyan accent looking like Cyan. */
.logo img {
    filter: invert(1) hue-rotate(180deg);
    transition: filter 0.3s;
}

[data-theme="light"] .logo img {
    filter: none;
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-list a {
    font-weight: 500;
    color: var(--color-text-muted);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.icon-btn {
    background: none;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5px;
}

/* Hero */
.hero {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 80px;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 30px;
    max-width: 500px;
}

/* Products Preview */
.section {
    padding: 80px 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    transition: transform 0.3s, border-color 0.3s;
}

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

.icon-box {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(100, 255, 218, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

[data-theme="light"] .icon-box {
    background: rgba(0, 112, 243, 0.1);
}

.card h3 {
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.subtitle {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.link-arrow {
    display: inline-block;
    margin-top: 20px;
    color: var(--color-primary);
    font-weight: 600;
}

/* Features (Why AI) */
.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-top: 40px;
}

.section-header {
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 2.5rem;
}

.lead {
    font-size: 1.25rem;
    color: var(--color-text-muted);
}

/* Showcase (Product Deep Dives) */
.showcase-dark {
    background: var(--color-bg-secondary);
}

.showcase-card {
    background: var(--color-bg);
    /* Contrast against secondary bg */
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.feature-list {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--color-text-muted);
}

.icon-small {
    color: var(--color-secondary);
    display: flex;
}

/* Footer / Backers */
.backed-by {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
}

.section-title-sm {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.backers-logos {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
    font-weight: 700;
    font-size: 1.5rem;
    opacity: 0.5;
}

.footer {
    padding: 80px 0 40px;
    background: var(--color-bg);
    border-top: 1px solid var(--border-color);
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.footer-col h4 {
    color: var(--color-text);
    margin-bottom: 25px;
    font-size: 1.1rem;
    font-weight: 600;
}

.footer-links {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--color-text-muted);
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: all 0.3s;
}

.social-icon:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-3px);
    background: rgba(124, 220, 231, 0.05);
}

.footer-bottom {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    opacity: 0.8;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-col {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .footer-links a {
        justify-content: center;
    }
}



/* Stats Section */
.stats-grid {
    text-align: center;
    padding: 20px 0;
}

/* Stats Strip (Minimal) */
.stats-strip {
    padding: 30px 0;
    border-bottom: 1px solid var(--border-color);
    background: rgba(10, 25, 47, 0.5);
    backdrop-filter: blur(5px);
}

[data-theme="light"] .stats-strip {
    background: rgba(255, 255, 255, 0.8);
    border-bottom-color: rgba(0, 0, 0, 0.05);
}

.stats-flex {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

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

.stat-item h3 {
    font-size: 2rem;
    font-weight: 800;
    margin: 0;
    line-height: 1;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin: 5px 0 0;
}

/* Process Section (How It Works) */
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
    position: relative;
}

/* Connecting line */
.process-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    opacity: 0.3;
    z-index: 0;
    display: block;
}

.step-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
    text-align: center;
    transition: transform 0.3s;
}

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

.step-number {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: #0a192f;
    font-weight: 800;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.2rem;
    position: relative;
    z-index: 2;
    box-shadow: 0 0 15px rgba(124, 220, 231, 0.4);
}

/* FAQ Section */
.faq-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    max-width: 800px;
    margin: 40px auto 0;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px;
    cursor: pointer;
    font-weight: 600;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary:hover {
    color: var(--color-primary);
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 400;
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-item p {
    padding: 0 20px 20px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin: 0;
    border-top: 1px solid transparent;
}

.faq-item[open] p {
    border-top-color: var(--border-color);
    padding-top: 15px;
}

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

    .process-steps::before {
        display: none;
    }

    .stats-flex {
        flex-direction: column;
        gap: 30px;
    }
}

/* CTA Box */
.cta-box {
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg));
    padding: 60px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* Optional: Add a glow effect behind CTA */
.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(100, 255, 218, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

[data-theme="light"] .cta-box::before {
    background: radial-gradient(circle, rgba(0, 118, 255, 0.1) 0%, transparent 60%);
}

.cta-btns {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* Responsive updates for new sections */
@media (max-width: 768px) {
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .cta-btns {
        flex-direction: column;
    }

    .partner-item {
        margin: 0 20px;
    }
}

/* Animation Classes */
/* Value Proposition Section */
.value-prop-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: flex-start;
}

.benefit-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 25px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.benefit-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-primary);
    box-shadow: 0 5px 15px rgba(124, 220, 231, 0.1);
}

.benefit-card h4 {
    color: var(--color-primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Response for mobile */
@media (max-width: 768px) {
    .value-prop-grid {
        grid-template-columns: 1fr;
    }

    .value-prop-intro {
        min-height: auto !important;
    }
}

/* Fix alignment for value prop intro text */
.value-prop-intro {
    min-height: 160px;
    /* Adjust based on content to align cards */
    display: flex;
    flex-direction: column;
}


.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.fade-in-right {
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Responsive */
@media (max-width: 768px) {

    .hero-container,
    .grid-2,
    .features-grid {
        grid-template-columns: 1fr;
    }

    .header-container {
        padding: 0 15px;
    }

    .nav {
        display: none;
        /* Mobile menu todo */
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }
}

/* Navigation Active State */
.nav-list a.active {
    color: var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 2px;
}

/* Sub-page Hero */
.hero-small {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 40px;
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.hero-small .hero-content {
    max-width: 800px;
}

.hero-small h1 {
    font-size: 3rem;
    margin-bottom: 15px;
}

/* Product Layout (Two Column) */
.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-layout.reverse {
    direction: rtl;
}

.product-layout.reverse .product-info {
    direction: ltr;
}

.product-visual {
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

.visual-placeholder {
    width: 100%;
}

@media (max-width: 768px) {
    .product-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-layout.reverse {
        direction: ltr;
    }

    .hero-small h1 {
        font-size: 2.5rem;
    }
}

/* Coming Soon Overlay */
.coming-soon-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(10, 25, 47, 0.8);
    padding: 15px 25px;
    border-radius: 30px;
    z-index: 10;
    backdrop-filter: blur(5px);
    border: 1px solid var(--color-primary);
    pointer-events: none;
    text-align: center;
}

[data-theme="light"] .coming-soon-overlay {
    background: rgba(255, 255, 255, 0.9);
}

.coming-soon-overlay .badge {
    color: var(--color-primary);
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.8rem;
}

.product-visual {
    position: relative;
    overflow: hidden;
}

/* Coming Soon Full Area */
.coming-soon-full {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 400px;
    width: 100%;
}

.coming-soon-content {
    max-width: 300px;
}

.coming-soon-content .badge {
    margin-bottom: 20px;
    display: inline-block;
}

.coming-soon-content h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--color-primary);
}

.coming-soon-content p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}


/* Contact / Inquiry Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    text-align: left;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.inquiry-form {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    background: var(--color-bg);
    border: 1px solid var(--border-color);
    color: var(--color-text);
    font-family: inherit;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(124, 220, 231, 0.1);
}

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

/* New Waitlist Section (Bottom) */
.waitlist-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(124, 220, 231, 0.05) 0%, transparent 100%);
    border-top: 1px solid var(--border-color);
}

.waitlist-card {
    background: var(--bg-card);
    padding: 60px;
    border-radius: 30px;
    border: 1px solid var(--color-primary);
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.waitlist-form {
    display: flex;
    gap: 15px;
    max-width: 500px;
    margin: 30px auto 0;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .waitlist-form {
        flex-direction: column;
    }
}