:root {
    --bg-color: #000000;
    --card-bg: #111111;
    --text-primary: #f5f5f7;
    --text-muted: #86868b;
    --accent-red: #A1FF00;
    --accent-green: #A1FF00;
    --nav-border: rgba(255, 255, 255, 0.1);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Typography base */
h1, h2, h3, h4 {
    letter-spacing: -0.04em;
    font-weight: 700;
}
.muted {
    color: var(--text-muted);
}
.link-primary {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 17px;
    font-weight: 500;
    letter-spacing: -0.01em;
    transition: color 0.3s;
    display: inline-flex;
    align-items: center;
}
.link-primary:hover {
    color: var(--accent-green); 
}
.link-primary .arrow {
    margin-left: 5px;
    font-size: 1.1em;
    transition: transform 0.3s;
}
.link-primary:hover .arrow {
    transform: translateX(4px);
}
.link-primary.large {
    font-size: 24px;
}

/* Placeholders Framework */
.placeholder-box {
    background-color: #1a1a1c;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* Apple-style Navigation */
.glass-nav {
    position: fixed;
    top: 0; width: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--nav-border);
    z-index: 1000;
}
.nav-container {
    max-width: 1024px;
    margin: 0 auto;
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    font-size: 12px;
    letter-spacing: -0.01em;
    font-weight: 500;
}
.logo {
    display: flex;
    align-items: center;
}
.brand-logo {
    height: 32px; /* Set logo height to fit nicely in navbar */
    width: auto;
    display: block;
}
.nav-links {
    display: flex;
    gap: 30px;
}
.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}
.nav-links a:hover {
    opacity: 1;
}
.buy-button {
    background-color: var(--text-primary);
    color: var(--bg-color);
    padding: 6px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s;
}
.buy-button:hover {
    background-color: var(--accent-green);
    transform: scale(1.05);
}

/* Hero Section */
.hero {
    padding-top: 150px;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
}
.hero-title {
    font-size: 80px;
    line-height: 1.05;
    margin-bottom: 15px;
    margin-top: 50px;
}
.hero-gradient {
    background: linear-gradient(90deg, #ffffff, #888888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-subtitle {
    font-size: 24px;
    color: var(--text-muted);
    font-weight: 500;
    max-width: 700px;
    margin: 0 auto 30px;
    letter-spacing: -0.015em;
}
.hero-cta {
    margin-bottom: 60px;
}
.hero-image-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 10;
    padding: 0 40px;
}

/* Cinematic Assembly Scroll Section */
.assembly-section {
    position: relative;
    width: 100%;
    background-color: #000;
}
.assembly-sticky {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.scroll-drone-image {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    z-index: 1;
    filter: brightness(0.7); 
}

/* Overlay Text Blocks */
.assembly-text-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
}
.spec-block {
    position: absolute;
    opacity: 0;
    left: 10%;
    top: 35%;
    max-width: 350px;
}
.spec-block h2 {
    font-size: 40px;
    margin-bottom: 10px;
    color: var(--text-primary);
}
.spec-block p {
    font-size: 20px;
    color: var(--text-muted);
    font-weight: 400;
    line-height: 1.4;
}

/* Sectors Grid (Product Cards) */
.sectors-section {
    padding: 150px 5%;
    max-width: 1400px;
    margin: 0 auto;
}
.sectors-header {
    text-align: center;
    margin-bottom: 80px;
}
.section-title {
    font-size: 64px;
    line-height: 1.1;
}

.grid-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}
.product-card {
    background-color: var(--card-bg);
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}
.large-card {
    height: 600px;
    align-items: center;
    justify-content: flex-end;
}
.large-card .card-text {
    position: absolute;
    top: 60px;
    text-align: center;
    z-index: 10;
    max-width: 500px;
}
.card-text h3 {
    font-size: 32px;
    margin-bottom: 8px;
}
.card-text p {
    font-size: 19px;
    color: var(--text-muted);
    margin-bottom: 15px;
}
.large-card .card-image-wrapper {
    width: 100%;
    height: 80%;
    position: absolute;
    bottom: 0;
    display: flex;
    align-items: flex-end;
}

.half-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}
.dark-card {
    min-height: 500px;
}
.dark-card .top-text {
    padding: 40px;
    z-index: 10;
    text-align: center;
}
.dark-card .card-image-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    height: 100%;
}
.product-card:hover .placeholder-box {
    filter: brightness(1.2);
    transition: filter 0.4s;
}
.product-card img {
    transition: filter 0.4s;
}
.product-card:hover img {
    filter: brightness(1.1);
}

/* Leadership Section */
.team-section {
    padding: 100px 5% 150px;
    max-width: 1100px;
    margin: 0 auto;
}
.team-header {
    text-align: center;
    margin-bottom: 80px;
}
.team-subtitle {
    font-size: 20px;
    max-width: 600px;
    margin: 20px auto 0;
}
.team-leadership {
    display: flex;
    justify-content: center;
    gap: 60px;
    align-items: flex-start;
}
.leader-card {
    flex: 1;
    max-width: 400px;
    text-align: left;
}
.portrait-placeholder {
    width: 100%;
    /* aspect-ratio set inline but ensuring fallback */
    border-radius: 20px;
    margin-bottom: 30px;
    background-color: #141415;
    border: none;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}
.leader-info h4 {
    font-size: 32px;
    margin-bottom: 4px;
}
.leader-info .role {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--accent-green);
    font-weight: 500;
}
.leader-info .bio {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-muted);
}

/* Footer */
footer {
    padding: 100px 5% 50px;
    background: var(--bg-color);
}
.footer-container {
    max-width: 1024px;
    margin: 0 auto;
}
.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 60px;
}
.footer-top .logo {
    display: block;
}
.contact-info p {
    font-size: 14px;
    margin-bottom: 10px;
}
.footer-divider {
    height: 1px;
    background: var(--nav-border);
    margin-bottom: 20px;
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    color: #444; /* darker for subtlety */
    font-size: 12px;
}
.footer-bottom strong {
    color: var(--text-muted);
    margin-left: 5px;
}
.footer-links {
    display: flex;
    gap: 20px;
}
.footer-links a {
    color: #444;
    text-decoration: none;
}
.footer-links a:hover {
    color: var(--text-muted);
}

/* Animations */
.fade-in-up {
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 1024px) {
    .team-leadership { flex-direction: column; align-items: center; gap: 80px; }
    .leader-card { max-width: 500px; text-align: center; }
}
@media (max-width: 800px) {
    .nav-links { display: none; }
    .hero-title { font-size: 50px; }
    .hero-subtitle { font-size: 20px; padding: 0 20px; }
    .half-cards { grid-template-columns: 1fr; }
    .section-title { font-size: 40px; }
    .footer-top { flex-direction: column; gap: 40px; }
    .spec-block { left: 5%; right: 5%; text-align: center; }
}