:root {
    --bg-color: #000000;
    --bg-secondary-color: #121212;
    --primary-accent: #00A8E8; /* Vibrant Blue */
    --text-primary: #EAEAEA;
    --text-secondary: #A0A0A0;
    --heading-color: #FFFFFF;
    --border-color: #2a2a2a;
    --font-family: 'Montserrat', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-family);
    line-height: 1.6;
    font-size: 16px;
}

/* Header & Nav */
.header {
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 2.5rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

/* Logo Styles */
.logo-link {
    display: flex;
    align-items: center;
    z-index: 101; /* Ensure logo is above mobile menu background */
}

.logo-image {
    height: 40px; 
    width: auto;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--heading-color);
}

/* Hamburger Menu (hidden on desktop) */
.hamburger {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 101; /* Ensure hamburger is above mobile menu background */
}

.hamburger-bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background-color: var(--heading-color);
    transition: all 0.3s ease-in-out;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2.5rem 4rem;
    background: radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 100%);
}

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

.hero-headline {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--heading-color);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subheadline {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 2.5rem;
}

/* Buttons and Links */
.cta-button {
    display: inline-block;
    background: var(--primary-accent);
    color: var(--heading-color);
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease, background-color 0.3s ease;
    border: 2px solid var(--primary-accent);
}

.cta-button:hover {
    background-color: #007bb5;
    transform: translateY(-3px);
}

.cta-button.secondary {
    background: transparent;
    border-color: var(--border-color);
}

.cta-button.secondary:hover {
    background-color: var(--border-color);
    border-color: var(--border-color);
}

.link-learn-more {
    color: var(--primary-accent);
    text-decoration: none;
    font-weight: 600;
    margin-top: 2rem;
    display: inline-block;
}

/* General Section Styling */
.feature-section {
    padding: 6rem 2.5rem;
    border-bottom: 1px solid var(--border-color);
}

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

.section-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--heading-color);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 4rem;
}

/* Grids for Content */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    text-align: left;
}
.content-grid-2-col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    text-align: left;
}

/* Cards */
.info-card {
    background-color: var(--bg-secondary-color);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}
.feature-section:not(.alt-bg) .info-card {
    background-color: #080808;
}

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

h3 { font-size: 1.5rem; color: var(--heading-color); margin-bottom: 1rem; }
h4 { font-size: 1.2rem; color: var(--text-primary); margin-bottom: 0.75rem; }
.info-card p {
    color: var(--text-secondary);
}

/* Feature List Styling */
.feature-list {
    list-style: none;
    padding-left: 0;
    margin-top: 1rem;
    color: var(--text-secondary);
}
.feature-list li {
    padding-left: 20px;
    position: relative;
    margin-bottom: 0.75rem;
}
.feature-list li::before {
    content: '–'; 
    position: absolute;
    left: 0;
    color: var(--primary-accent);
    font-weight: 700;
}
.feature-list.centered {
    display: inline-block;
    text-align: left;
}

/* CTA and Form Sections */
.cta-section {
    padding: 6rem 2.5rem;
    background-color: var(--bg-secondary-color);
    text-align: center;
}
.early-access-details {
    max-width: 600px;
    margin: 1rem auto 2rem;
}
.early-access-details h3 {
    margin-bottom: 1.5rem;
}
.form-note {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 1.5rem;
    opacity: 0.8;
}

.vendor-cta {
    margin-top: 3rem;
}

/* Footer */
.footer {
    background-color: #000;
    text-align: center;
    padding: 3rem 2rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.footer p {
    margin-bottom: 0.5rem;
}

/* Animation Classes */
.anim-fade-in, .anim-fade-up {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.anim-fade-up {
    transform: translateY(30px);
}

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

/* ===================================== */
/*      MOBILE OPTIMIZATION (MEDIA QUERIES)      */
/* ===================================== */

@media (max-width: 992px) {
    /* --- Mobile Navigation --- */
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform 0.3s ease-in-out;
        z-index: 100;
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .nav-links a {
        font-size: 1.5rem;
        color: var(--heading-color);
    }

    .hamburger {
        display: block;
    }

    /* Animate hamburger to an 'X' */
    .hamburger.active .hamburger-bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger.active .hamburger-bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active .hamburger-bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* --- General Layout --- */
    .feature-section, .cta-section {
        padding: 5rem 1.5rem;
    }

    .section-subtitle {
        margin-bottom: 3rem;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 1rem 1.5rem;
    }

    .logo-image {
        height: 35px;
    }
    
    .hero-section {
        padding-top: 6rem;
        padding-bottom: 3rem;
    }

    .section-title {
        font-size: 1.8rem; /* Use a fixed size on very small screens if clamp is too big */
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .info-card {
        padding: 1.5rem;
    }
}