:root {
    --bg-color: #0A0A0B;
    --accent-color: #FFB800;
    --surface-color: #2A2A2E;
    --text-primary: #F4F4F5;
    --text-secondary: #A1A1AA;
    
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --border-radius: 2px;
    --radius: 1rem;
    --glass-bg: rgba(10, 10, 11, 0.7);
    --glass-blur: blur(12px);
    
    --transition-sharp: 0.2s linear;
    --transition-slide: 0.4s cubic-bezier(0.0, 0.0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

body {
    margin: 0;
    padding: 0;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    margin-top: 0;
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

h1 { font-size: 4rem; text-shadow: 0 4px 20px rgba(0,0,0,0.5); }
h2 { font-size: 2.5rem; margin-top: 2rem; border-bottom: 1px solid var(--surface-color); padding-bottom: 0.5rem;}
h3 { font-size: 1.5rem; color: var(--accent-color); }

p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    max-width: 80ch;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-sharp);
}
a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 8px rgba(255, 184, 0, 0.4);
}

strong, b {
    color: var(--text-primary);
    font-weight: 600;
}

/* Layout */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Header & Nav */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: transparent;
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: background 0.3s, border-bottom 0.3s, backdrop-filter 0.3s;
}

html.scrolling .site-header {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--surface-color);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.site-logo {
    height: 48px;
    width: auto;
    filter: grayscale(100%) brightness(200%);
}

.logo-text {
    display: none;
}

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.main-nav a {
    color: var(--text-secondary);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.5rem 0;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--accent-color);
    transition: width var(--transition-sharp);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text-primary);
}

/* Sections */
.main-content {
    position: relative;
    z-index: 2;
}

.content-section {
    padding: 6rem 0;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-bottom: 1px solid rgba(42, 42, 46, 0.3);
}

/* Hero Section */
.hero-section {
    padding: 0;
    min-height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-bottom: 1px solid var(--accent-color);
    background-color: var(--bg-color);
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 11, 0.5); /* adjusted overlay to let video show through */
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: left;
}

/* New specific interaction & social styles */
.interactive {
    transition: transform var(--transition-sharp);
}
.interactive:hover {
    transform: scale(1.05);
}

.hero-socials {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-icon {
    width: 2rem; /* w-8 equivalent (32px) */
    height: 2rem; /* h-8 equivalent (32px) */
    border-radius: 9999px; /* rounded-full */
    background-color: rgba(255, 255, 255, 0.1); /* bg-white/10 */
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff; /* text-white */
    transition: color 0.2s, transform 0.2s; /* transition-colors and transform */
    position: relative;
    z-index: 10;
}

.social-icon:hover {
    color: rgba(255, 255, 255, 0.8); /* hover:text-white/80 */
}

/* Glass border effect (no traditional borders) */
.glass-border {
    position: relative;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}
.glass-border::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(to bottom right, rgba(255,255,255,0.4), rgba(255,255,255,0.05));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.hero-subheadline {
    font-size: 1.25rem;
    max-width: 65ch;
    margin-bottom: 2.5rem;
    color: #D4D4D8;
}

.hero-actions {
    margin-top: 2rem;
}

/* Trust Bar */
.trust-bar-section {
    background: #18181B; /* slightly lighter than bg */
    padding: 3rem 0;
    border-bottom: 1px solid var(--surface-color);
    position: relative;
    z-index: 3;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

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

.trust-icon {
    font-size: 2rem;
    color: var(--accent-color);
    margin-top: -0.25rem;
}

.trust-text strong {
    font-family: var(--font-heading);
    display: block;
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
    text-transform: uppercase;
}

.trust-text p {
    margin: 0;
    font-size: 0.9rem;
    max-width: 30ch;
}

/* Split Layouts (Value Prop & Contact) */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.split-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-card {
    background: rgba(42, 42, 46, 0.3);
    border-left: 2px solid var(--accent-color);
    padding: 1.5rem 2rem;
    display: flex;
    gap: 1.5rem;
    transition: transform var(--transition-sharp), background var(--transition-sharp);
}

.feature-card:hover {
    transform: translateX(10px);
    background: rgba(42, 42, 46, 0.6);
}

.feature-num {
    font-family: var(--font-mono);
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.feature-content h3 {
    margin-top: 0;
    font-size: 1.25rem;
}

.feature-content p {
    margin: 0;
    font-size: 0.95rem;
}

/* Integrations / Capabilities Grid */
.cap-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.cap-card {
    background: rgba(42, 42, 46, 0.4);
    border: 1px solid var(--surface-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    transition: transform var(--transition-sharp), border-color var(--transition-sharp), box-shadow var(--transition-sharp);
    display: block;
    color: var(--text-secondary);
}

.cap-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
    color: var(--text-secondary);
}

.cap-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.cap-card h3 {
    color: var(--text-primary);
}

.cap-link {
    display: inline-block;
    margin-top: 1rem;
    font-family: var(--font-mono);
    color: var(--accent-color);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
}

/* Narrative / About Us */
.narrative-layout {
    text-align: center;
}

.narrative-layout h2 {
    border-bottom: none;
    margin-bottom: 3rem;
}

.narrative-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    text-align: left;
}

/* Logistics Timeline */
.section-desc {
    font-size: 1.1rem;
    max-width: 70ch;
    margin-bottom: 3rem;
}

.logistics-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.timeline-step {
    padding: 2rem;
    background: var(--surface-color);
    position: relative;
    border-radius: var(--border-radius);
}

.timeline-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-color);
}

.step-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

/* Contact Info & Form */
.contact-info {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--surface-color);
}

.contact-info p {
    margin-bottom: 0.5rem;
}

.terminal-form {
    background: var(--surface-color);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.form-row {
    display: flex;
    gap: 1.5rem;
}

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

.form-group.half {
    flex: 1;
}

.form-group.full {
    width: 100%;
}

.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

input[type="text"], input[type="email"], select, textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: #18181B; /* darker than surface */
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-family: var(--font-body);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-sharp);
    box-sizing: border-box;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Custom Checkbox */
.checkbox-container {
    display: flex;
    align-items: flex-start;
    position: relative;
    padding-left: 30px;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-secondary);
    user-select: none;
    margin-bottom: 2rem;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 2px;
    left: 0;
    height: 18px;
    width: 18px;
    background-color: #18181B;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

.checkbox-container:hover input ~ .checkmark {
    border-color: var(--accent-color);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--accent-color);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
    display: block;
}

.checkbox-container .checkmark:after {
    left: 6px;
    top: 2px;
    width: 4px;
    height: 9px;
    border: solid var(--bg-color);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.submit-btn {
    width: 100%;
    text-align: center;
}

/* Buttons */
button, .btn, input[type="submit"] {
    display: inline-block;
    background: transparent;
    border: 1px solid var(--surface-color);
    color: var(--text-primary);
    padding: 0.85rem 2.5rem;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: all var(--transition-sharp);
    text-decoration: none;
}

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

button:hover, .btn:hover, input[type="submit"]:hover {
    background: rgba(255, 184, 0, 0.1);
    box-shadow: 0 0 15px rgba(255, 184, 0, 0.2);
}

/* Background Animation */
.circuit-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    opacity: 0.15;
    background-image: 
        linear-gradient(var(--surface-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--surface-color) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

/* Timeline Indicator */
.timeline-indicator {
    position: fixed;
    top: 100px;
    left: 2%;
    width: 2px;
    height: calc(100vh - 150px);
    background: var(--surface-color);
    z-index: 10;
    display: none;
}

.timeline-laser {
    width: 100%;
    height: 0%;
    background: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color);
    transition: height 0.1s linear;
}

@media (min-width: 1200px) {
    .timeline-indicator {
        display: block;
    }
    .container {
        padding-left: 4rem; /* make room for timeline */
    }
}

/* Hero Title Blur Reveal Effect */
.hero-title-reveal {
    opacity: 0;
    animation: hero-reveal 2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    display: inline-block;
}

@keyframes hero-reveal {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
        filter: blur(15px);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

/* Scramble effect hint */
.scramble-text {
    visibility: hidden;
}
.scramble-text.scrambled {
    visibility: visible;
}

/* Animations */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.0, 0.0, 0.2, 1), transform 0.7s cubic-bezier(0.0, 0.0, 0.2, 1);
}
.fade-in-section.is-visible {
    opacity: 1;
    transform: none;
}

/* Footer */
.site-footer {
    background: var(--surface-color);
    padding: 3rem 0 1rem;
    position: relative;
    z-index: 2;
    border-top: 1px solid var(--accent-color);
}
.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 2rem;
    margin-bottom: 2rem;
}
.footer-logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 0.1em;
}
.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

/* Mobile Responsive */
@media (max-width: 900px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-color);
        border-bottom: 1px solid var(--surface-color);
        padding: 1rem 5%;
    }
    .main-nav.nav-open {
        display: block;
    }
    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }
    .main-nav a {
        display: block;
        padding: 1rem 0;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .trust-grid, .split-layout, .cap-grid, .narrative-columns, .logistics-timeline {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    h1 { font-size: 2.5rem; }
    h2 { font-size: 1.75rem; }
    .hero-section { min-height: 80vh; }
}