:root {
    --bg-deep: #050505;
    --bg-surface: #0c0d10;
    --bg-glass: rgba(15, 15, 20, 0.6);
    --accent-cyan: #00f0ff;
    --accent-purple: #7000ff;
    --accent-glow: rgba(0, 240, 255, 0.15);
    --text-primary: #e5e2e1;
    --text-secondary: #8b92a5;
    --text-dim: #464b58;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Manrope', sans-serif;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    animation: fadeIn 1.2s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-surface);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
}

/* --- Neural Background --- */
#neural-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.4;
    pointer-events: none;
}

/* --- Utilities --- */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 24px;
}

.glow-text {
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
    animation: pulse 4s infinite alternate;
}

@keyframes pulse {
    0% { opacity: 0.8; text-shadow: 0 0 10px rgba(0, 240, 255, 0.3); }
    100% { opacity: 1; text-shadow: 0 0 30px rgba(0, 240, 255, 0.6); }
}

.reveal {
    opacity: 0.1;
    transform: translateY(30px);
    transition: var(--transition);
}

/* Fail-safe if JS fails or observer is slow */
.no-js .reveal,
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- Navigation --- */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: var(--transition);
    background: #000000;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

nav.scrolled {
    padding: 0.8rem 5%;
    background: rgba(5, 5, 5, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--text-primary);
    text-decoration: none;
}

.logo span {
    color: var(--accent-cyan);
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px var(--accent-cyan);
}

.lang-toggle {
    display: flex;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 4px;
    border-radius: 20px;
}

.lang-btn {
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: transparent;
    color: var(--text-dim);
}

.lang-btn.active {
    background: var(--accent-cyan);
    color: var(--bg-deep);
}

/* --- Hero --- */
header {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 5%;
    position: relative;
    background: linear-gradient(rgba(5, 5, 5, 0.7), rgba(5, 5, 5, 0.7)), url('hero_bg.png');
    background-size: cover;
    background-position: center;
}

h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    line-height: 0.9;
}

h1 span {
    display: block;
    color: transparent;
    -webkit-text-stroke: 1px var(--text-primary);
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--accent-cyan);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 3rem;
}

.btn {
    padding: 1.2rem 3rem;
    border-radius: 100px;
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent-cyan);
    color: var(--bg-deep);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 50px rgba(0, 240, 255, 0.5);
}

/* --- Sections --- */
section {
    padding: 10rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

h2 {
    font-family: var(--font-display);
    font-size: 3rem;
    margin-bottom: 4rem;
    text-align: center;
}

h2 span {
    color: var(--accent-cyan);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    padding: 3rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 240, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
}

.card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

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

/* --- Philosophy --- */
.philosophy {
    text-align: center;
    background: linear-gradient(rgba(5, 5, 5, 0.8), rgba(5, 5, 5, 0.8)), url('philosophy_bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.vision-text {
    font-family: var(--font-display);
    font-size: 2.5rem;
    line-height: 1.2;
    max-width: 900px;
    margin: 0 auto;
}

/* --- Careers --- */
.job-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    margin-bottom: 1rem;
}

.job-info h4 {
    font-size: 1.2rem;
    margin-bottom: 0.2rem;
}

.job-info span {
    color: var(--text-dim);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-group {
    position: relative;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--text-dim);
    padding: 1rem 0;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.form-group label {
    position: absolute;
    top: 1rem;
    left: 0;
    color: var(--text-dim);
    pointer-events: none;
    transition: var(--transition);
}

.form-group input:focus ~ label,
.form-group input:valid ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:valid ~ label {
    top: -1rem;
    font-size: 0.8rem;
    color: var(--accent-cyan);
}

.form-group input:focus, 
.form-group textarea:focus {
    border-bottom-color: var(--accent-cyan);
}

/* --- Footer --- */
footer {
    padding: 5rem 5%;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* --- Transition Overlay --- */
#transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.wireframe-grid {
    width: 200%;
    height: 200%;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.2) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.2) 1px, transparent 1px);
    background-size: 50px 50px;
    transform: rotateX(60deg) translateY(0);
    opacity: 0;
}

#transition-overlay.active {
    animation: overlayFade 0.8s ease-in-out;
}

#transition-overlay.active .wireframe-grid {
    animation: gridTravel 0.8s ease-in-out;
}

/* --- Transition Warp Effect --- */
body.is-transitioning section,
body.is-transitioning header {
    filter: blur(8px) brightness(1.2);
    transform: scale(0.98);
    transition: filter 0.4s ease, transform 0.4s ease;
}

@keyframes overlayFade {
    0% { opacity: 0; backdrop-filter: blur(0px); }
    30% { opacity: 1; backdrop-filter: blur(10px); background: rgba(0, 240, 255, 0.1); }
    70% { opacity: 1; backdrop-filter: blur(10px); }
    100% { opacity: 0; backdrop-filter: blur(0px); }
}

@keyframes gridTravel {
    0% { transform: rotateX(70deg) translateZ(-500px) scale(0.5); opacity: 0; }
    30% { opacity: 0.8; }
    70% { opacity: 0.8; }
    100% { transform: rotateX(70deg) translateZ(500px) scale(2); opacity: 0; }
}

/* --- Mobile --- */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .contact-container { grid-template-columns: 1fr; }
    h1 { font-size: 4rem; }
    h2 { font-size: 2rem; }
    .vision-text { font-size: 1.5rem; }
}