/* ===== CSS Variables ===== */
:root {
    --color-bg: #0A0A0A;
    --color-bg-alt: #111111;
    --color-primary: #00FFFF;
    --color-secondary: #FF00FF;
    --color-accent: #39FF14;
    --color-text: #FFFFFF;
    --color-text-muted: #808080;
    --color-border: rgba(0, 255, 255, 0.2);

    --font-main: 'Orbitron', sans-serif;
    --font-body: 'Roboto Mono', monospace;

    --glow-primary: 0 0 20px rgba(0, 255, 255, 0.5), 0 0 40px rgba(0, 255, 255, 0.3);
    --glow-secondary: 0 0 20px rgba(255, 0, 255, 0.5), 0 0 40px rgba(255, 0, 255, 0.3);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--color-primary);
    color: var(--color-bg);
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-secondary);
}

/* ===== Loading Screen ===== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s, visibility 0.5s;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
}

.loading-text {
    font-family: var(--font-main);
    font-size: clamp(1.5rem, 5vw, 3rem);
    color: var(--color-primary);
    text-shadow: var(--glow-primary);
    animation: pulse 1.5s infinite;
}

.loading-bar {
    width: 300px;
    height: 4px;
    background: rgba(0, 255, 255, 0.1);
    margin: 30px auto 20px;
    position: relative;
    overflow: hidden;
}

.loading-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    animation: loading 2s ease-out forwards;
}

@keyframes loading {
    0% { width: 0%; }
    100% { width: 100%; }
}

.loading-code {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.code-line {
    display: block;
    opacity: 0;
    animation: fadeInUp 0.5s forwards;
}

.code-line:nth-child(1) { animation-delay: 0.3s; }
.code-line:nth-child(2) { animation-delay: 0.6s; }
.code-line:nth-child(3) { animation-delay: 0.9s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Particle Background ===== */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.5;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav-logo {
    font-family: var(--font-main);
    font-size: 1.2rem;
    font-weight: 700;
}

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

.logo-accent {
    color: var(--color-primary);
    text-shadow: var(--glow-primary);
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    font-family: var(--font-main);
    font-size: 0.85rem;
    color: var(--color-text);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s;
}

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

.nav-link:hover::after {
    width: 100%;
}

.cta-nav {
    padding: 10px 25px;
    border: 1px solid var(--color-primary);
    color: var(--color-primary) !important;
}

.cta-nav:hover {
    background: var(--color-primary);
    color: var(--color-bg) !important;
    box-shadow: var(--glow-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    padding: 120px 5% 60px;
    display: flex;
    flex-direction: column;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    border: 1px solid var(--color-border);
    background: rgba(0, 255, 255, 0.05);
    margin-bottom: 30px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.badge-text {
    font-family: var(--font-main);
    font-size: 0.75rem;
    letter-spacing: 3px;
}

.hero-title {
    font-family: var(--font-main);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.btn-primary, .btn-secondary {
    padding: 18px 40px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
    border: none;
}

.btn-primary:hover {
    box-shadow: var(--glow-primary);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

.hero-stats {
    display: flex;
    gap: 30px;
}

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

.stat-value {
    display: block;
    font-family: var(--font-main);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    letter-spacing: 2px;
}

.stat-divider {
    width: 1px;
    background: var(--color-border);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cyber-ring {
    position: absolute;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.cyber-ring {
    width: 300px;
    height: 300px;
}

.cyber-ring-2 {
    width: 200px;
    height: 200px;
    border-color: rgba(255, 0, 255, 0.3);
    animation-direction: reverse;
    animation-duration: 15s;
}

.cyber-core {
    position: relative;
    text-align: center;
    z-index: 10;
}

.core-text {
    font-family: var(--font-main);
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: coreGlow 3s ease-in-out infinite;
}

.core-sub {
    font-family: var(--font-main);
    font-size: 1rem;
    color: var(--color-primary);
    letter-spacing: 5px;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes coreGlow {
    0%, 100% { filter: drop-shadow(0 0 20px var(--color-primary)); }
    50% { filter: drop-shadow(0 0 40px var(--color-secondary)); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.scroll-text {
    display: block;
    font-family: var(--font-main);
    font-size: 0.7rem;
    letter-spacing: 3px;
    color: var(--color-text-muted);
    margin-bottom: 10px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    margin: 0 auto;
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.8); }
}

/* ===== Sections Common ===== */
section {
    padding: 100px 5%;
    position: relative;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-number {
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--color-primary);
    letter-spacing: 5px;
    display: block;
    margin-bottom: 15px;
}

.section-title {
    font-family: var(--font-main);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== About Section ===== */
.about {
    background: var(--color-bg-alt);
}

.section-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.grid-lines {
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.about-lead {
    font-family: var(--font-main);
    font-size: 1.8rem;
    line-height: 1.4;
    margin-bottom: 25px;
}

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

.about-desc {
    color: var(--color-text-muted);
    margin-bottom: 40px;
}

.about-features {
    display: flex;
    gap: 30px;
}

.about-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
}

.feature-icon {
    font-size: 2rem;
}

.feature-text {
    font-size: 0.85rem;
    letter-spacing: 1px;
}

/* About Visual */
.about-visual {
    position: relative;
}

.data-flow {
    width: 100%;
    height: 400px;
    position: relative;
}

.flow-line {
    position: absolute;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--color-primary), transparent);
    left: 50%;
    animation: flowPulse 3s infinite;
}

.flow-line-2 {
    left: 25%;
    animation-delay: 0.5s;
}

.flow-line-3 {
    left: 75%;
    animation-delay: 1s;
}

@keyframes flowPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

.data-node {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: var(--glow-primary);
    animation: nodeFloat 4s ease-in-out infinite;
}

.data-node-2 {
    top: 30%;
    left: 30%;
    animation-delay: 1s;
}

.data-node-3 {
    top: 60%;
    right: 30%;
    animation-delay: 2s;
}

@keyframes nodeFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ===== Features Section ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    padding: 40px 30px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.1), transparent);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
}

.card-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 1.5rem;
    color: var(--color-primary);
}

.card-icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--color-primary);
}

.card-title {
    font-family: var(--font-main);
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.title-en {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    letter-spacing: 2px;
    margin-top: 5px;
}

.card-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 25px;
}

.card-specs {
    display: flex;
    gap: 20px;
}

.spec {
    display: flex;
    flex-direction: column;
}

.spec-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    letter-spacing: 1px;
}

.spec-value {
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--color-primary);
}

/* ===== Tech Section ===== */
.tech {
    background: var(--color-bg-alt);
}

.circuit-pattern {
    width: 100%;
    height: 100%;
    opacity: 0.05;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300FFFF' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.architecture-diagram {
    position: relative;
    height: 400px;
}

.arch-layer {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 40px;
}

.layer-label {
    font-family: var(--font-main);
    font-size: 0.7rem;
    letter-spacing: 2px;
    margin-bottom: 15px;
    color: var(--color-text-muted);
}

.layer-nodes {
    display: flex;
    gap: 10px;
}

.node {
    width: 15px;
    height: 15px;
    background: var(--color-border);
    border-radius: 50%;
    transition: var(--transition);
}

.node-active {
    background: var(--color-primary);
    box-shadow: var(--glow-primary);
    animation: nodePulse 2s infinite;
}

@keyframes nodePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.tech-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.tech-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.tech-number {
    font-family: var(--font-main);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    min-width: 50px;
}

.tech-content-inner h4 {
    font-family: var(--font-main);
    font-size: 1.1rem;
    margin-bottom: 10px;
}

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

/* ===== Use Cases Section ===== */
.usecases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.usecase-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    padding: 35px 25px;
    text-align: center;
    transition: var(--transition);
}

.usecase-item:hover {
    border-color: var(--color-secondary);
    box-shadow: var(--glow-secondary);
    transform: translateY(-5px);
}

.usecase-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.usecase-item h4 {
    font-family: var(--font-main);
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.usecase-item p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ===== CTA Section ===== */
.cta {
    background: var(--color-bg-alt);
    text-align: center;
}

.neon-grid {
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 255, 255, 0.1) 2px, transparent 2px),
        linear-gradient(90deg, rgba(0, 255, 255, 0.1) 2px, transparent 2px);
    background-size: 100px 100px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(100px); }
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    border: 1px solid var(--color-secondary);
    background: rgba(255, 0, 255, 0.05);
    margin-bottom: 30px;
}

.badge-dot.pulse {
    background: var(--color-secondary);
    animation: pulse 1.5s infinite;
}

.cta-title {
    font-family: var(--font-main);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
}

.cta-desc {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
}

.cta-form {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    justify-content: center;
}

.cta-input {
    flex: 1;
    min-width: 280px;
    max-width: 400px;
    padding: 18px 25px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.cta-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
}

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

.cta-btn {
    padding: 18px 40px;
    background: var(--color-secondary);
    color: var(--color-bg);
    border: none;
    font-family: var(--font-main);
    font-size: 0.9rem;
    letter-spacing: 2px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.cta-btn:hover {
    box-shadow: var(--glow-secondary);
    transform: translateY(-2px);
}

.btn-arrow {
    transition: transform 0.3s;
}

.cta-btn:hover .btn-arrow {
    transform: translateX(5px);
}

.cta-counter {
    font-family: var(--font-main);
}

.counter-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    letter-spacing: 2px;
}

.counter-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-shadow: var(--glow-primary);
}

.counter-suffix {
    font-size: 1.5rem;
    color: var(--color-primary);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: 60px 5% 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-family: var(--font-main);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.footer-tagline {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-link-group h5 {
    font-family: var(--font-main);
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.footer-link-group a {
    display: block;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-link-group a:hover {
    color: var(--color-primary);
    padding-left: 5px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

.footer-social {
    display: flex;
    gap: 20px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: var(--transition);
}

.social-link:hover {
    color: var(--color-primary);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* ===== Glitch Effect ===== */
.glitch {
    position: relative;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg);
}

.glitch::before {
    left: 2px;
    text-shadow: -2px 0 var(--color-secondary);
    clip-path: inset(24% 0 13% 0);
    animation: glitch-1 2s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: -2px 0 var(--color-primary);
    clip-path: inset(85% 0 1% 0);
    animation: glitch-2 3s infinite linear alternate-reverse;
}

@keyframes glitch-1 {
    0% { clip-path: inset(80% 0 1% 0); }
    20% { clip-path: inset(20% 0 60% 0); }
    40% { clip-path: inset(40% 0 40% 0); }
    60% { clip-path: inset(10% 0 80% 0); }
    80% { clip-path: inset(70% 0 10% 0); }
    100% { clip-path: inset(30% 0 50% 0); }
}

@keyframes glitch-2 {
    0% { clip-path: inset(10% 0 60% 0); }
    20% { clip-path: inset(80% 0 5% 0); }
    40% { clip-path: inset(30% 0 20% 0); }
    60% { clip-path: inset(10% 0 80% 0); }
    80% { clip-path: inset(70% 0 30% 0); }
    100% { clip-path: inset(20% 0 40% 0); }
}

/* ===== Animations ===== */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Fade In Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s, transform 0.6s;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-grid,
    .about-content,
    .tech-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-visual,
    .about-visual {
        order: -1;
    }

    .features-grid,
    .usecases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        transition: right 0.3s;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }

    .stat-divider {
        display: none;
    }

    .features-grid,
    .usecases-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 40px;
    }

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

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

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

    .cta-input {
        min-width: 100%;
    }
}

/* ===== Notification ===== */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 10000;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.notification.show {
    transform: translateX(0);
    opacity: 1;
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 25px;
    background: rgba(10, 10, 10, 0.95);
    border: 1px solid var(--color-primary);
    box-shadow: var(--glow-primary);
    backdrop-filter: blur(10px);
}

.notification-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-bg);
    border-radius: 50%;
    font-weight: bold;
    flex-shrink: 0;
}

.notification-text {
    font-size: 0.9rem;
    color: var(--color-text);
}

/* ===== Navigation Active State ===== */
.nav-link.active {
    color: var(--color-primary);
}

.nav-link.active::after {
    width: 100%;
}

/* ===== Skip to Content (Accessibility) ===== */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-bg);
    padding: 8px 16px;
    text-decoration: none;
    z-index: 10000;
}

.skip-to-content:focus {
    top: 0;
}

/* ===== Utility Classes ===== */
.br-mobile {
    display: none;
}

.br-desktop {
    display: block;
}

@media (max-width: 768px) {
    .br-mobile {
        display: block;
    }

    .br-desktop {
        display: none;
    }
}