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

body {
    font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0a0e27;
    color: #fff;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.background-animation::before,
.background-animation::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 3s ease-in-out;
}

.background-animation::before {
    background: linear-gradient(135deg, #f093fb 0%, #667eea 50%, #764ba2 100%);
    animation: fadeInOut1 20s ease-in-out infinite;
}

.background-animation::after {
    background: linear-gradient(135deg, #764ba2 0%, #f093fb 50%, #667eea 100%);
    animation: fadeInOut2 20s ease-in-out infinite;
}

@keyframes fadeInOut1 {
    0%, 100% {
        opacity: 0;
    }
    33% {
        opacity: 1;
    }
    66% {
        opacity: 0;
    }
}

@keyframes fadeInOut2 {
    0%, 33% {
        opacity: 0;
    }
    66% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

.geometric-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(40px);
}

.circle-1 {
    width: 500px;
    height: 500px;
    top: -150px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.circle-2 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -150px;
    animation: float 15s ease-in-out infinite reverse;
}

.circle-3 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float 25s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

header {
    text-align: center;
    padding: 3rem 1rem 1rem;
}

.logo-container {
    animation: fadeInDown 1s ease;
}

.logo-wrapper {
    display: inline-block;
    position: relative;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(45deg, #fff, #00d4ff, #fff);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite, pulse 2s ease-in-out infinite;
    filter: drop-shadow(0 0 30px rgba(0, 212, 255, 0.5));
    letter-spacing: 2px;
}

@keyframes shimmer {
    0% {
        background-position: 0% center;
    }
    100% {
        background-position: 200% center;
    }
}

.logo-underline {
    height: 4px;
    background: linear-gradient(90deg, transparent, #00d4ff, transparent);
    margin-top: 0.5rem;
    border-radius: 2px;
    animation: expandLine 1.5s ease forwards;
}

@keyframes expandLine {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.tagline {
    font-size: 1.2rem;
    margin-top: 1rem;
    opacity: 0.9;
    animation: fadeIn 1.5s ease;
    font-weight: 300;
    letter-spacing: 1px;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.hero {
    text-align: center;
    padding: 2rem 1rem 3rem;
    animation: fadeIn 2s ease;
}

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    animation: slideInLeft 1s ease;
    font-weight: 700;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
    animation: slideInRight 1s ease;
    font-weight: 300;
    max-width: 800px;
    margin: 0 auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeInUp 1.5s ease backwards;
}

.stat-item:nth-child(1) { animation-delay: 0.3s; }
.stat-item:nth-child(2) { animation-delay: 0.5s; }
.stat-item:nth-child(3) { animation-delay: 0.7s; }

.stat-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, #00d4ff, #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 300;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.features {
    padding: 3rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    animation: fadeInDown 1.5s ease;
    font-weight: 700;
}

.title-highlight {
    background: linear-gradient(135deg, #00d4ff, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

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

.feature-card {
    position: relative;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border-radius: 25px;
    padding: 2.5rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: fadeInUp 0.8s ease backwards;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card:hover {
    transform: translateY(-15px) scale(1.03);
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(0, 212, 255, 0.5);
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.3);
}

.icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: bounce 2s ease infinite;
    display: inline-block;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-10px) rotate(5deg);
    }
}

.feature-card h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.feature-card p {
    opacity: 0.85;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-weight: 300;
    font-size: 0.95rem;
}

.sensor-bar {
    position: relative;
    width: 100%;
    height: 10px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    overflow: hidden;
    margin-top: 1rem;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.sensor-fill {
    height: 100%;
    border-radius: 10px;
    animation: fillBar 3s ease-in-out infinite;
    position: relative;
    box-shadow: 0 0 10px currentColor;
}

.sensor-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmerBar 2s linear infinite;
}

@keyframes shimmerBar {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.sensor-value {
    display: block;
    margin-top: 0.5rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    opacity: 0.8;
    font-weight: 600;
}

@keyframes fillBar {
    0%, 100% {
        width: 70%;
    }
    50% {
        width: 85%;
    }
}

.humidity {
    background: linear-gradient(90deg, #4facfe, #00f2fe);
}

.oxygen {
    background: linear-gradient(90deg, #43e97b, #38f9d7);
}

.temperature {
    background: linear-gradient(90deg, #fa709a, #fee140);
}

.light {
    background: linear-gradient(90deg, #ffd89b, #19547b);
}

.noise {
    background: linear-gradient(90deg, #a8edea, #fed6e3);
}

.air-quality {
    background: linear-gradient(90deg, #d299c2, #fef9d7);
}

.traffic-light {
    padding: 4rem 1rem;
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.traffic-subtitle {
    font-size: 1.1rem;
    opacity: 0.85;
    margin-bottom: 3rem;
    font-weight: 300;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.traffic-container {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.traffic-item {
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    animation: fadeInUp 1s ease backwards;
}

.traffic-item:nth-child(1) { animation-delay: 0.2s; }
.traffic-item:nth-child(2) { animation-delay: 0.4s; }
.traffic-item:nth-child(3) { animation-delay: 0.6s; }

.traffic-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    transition: all 0.4s ease;
    position: relative;
    border: 4px solid rgba(255, 255, 255, 0.2);
}

.traffic-icon {
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 0 10px rgba(0, 0, 0, 0.5));
}

.green-glow {
    background: radial-gradient(circle, #4ade80, #22c55e);
    box-shadow: 0 0 40px rgba(34, 197, 94, 0.6);
    animation: pulseGreen 2s ease-in-out infinite;
}

.yellow-glow {
    background: radial-gradient(circle, #fbbf24, #f59e0b);
    box-shadow: 0 0 40px rgba(245, 158, 11, 0.6);
    animation: pulseYellow 2s ease-in-out infinite;
}

.red-glow {
    background: radial-gradient(circle, #f87171, #dc2626);
    box-shadow: 0 0 40px rgba(220, 38, 38, 0.6);
    animation: pulseRed 2s ease-in-out infinite;
}

@keyframes pulseGreen {
    0%, 100% {
        box-shadow: 0 0 40px rgba(34, 197, 94, 0.6);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 60px rgba(34, 197, 94, 0.8);
        transform: scale(1.05);
    }
}

@keyframes pulseYellow {
    0%, 100% {
        box-shadow: 0 0 40px rgba(245, 158, 11, 0.6);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 60px rgba(245, 158, 11, 0.8);
        transform: scale(1.05);
    }
}

@keyframes pulseRed {
    0%, 100% {
        box-shadow: 0 0 40px rgba(220, 38, 38, 0.6);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 60px rgba(220, 38, 38, 0.8);
        transform: scale(1.05);
    }
}

.traffic-item:hover .traffic-circle {
    transform: scale(1.1);
}

.traffic-item h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.green-light h3 {
    color: #4ade80;
    text-shadow: 0 0 20px rgba(34, 197, 94, 0.5);
}

.yellow-light h3 {
    color: #fbbf24;
    text-shadow: 0 0 20px rgba(245, 158, 11, 0.5);
}

.red-light h3 {
    color: #f87171;
    text-shadow: 0 0 20px rgba(220, 38, 38, 0.5);
}

.traffic-item p {
    opacity: 0.85;
    line-height: 1.7;
    font-weight: 300;
    font-size: 0.95rem;
}

.benefits {
    padding: 4rem 1rem;
    max-width: 1100px;
    margin: 0 auto;
}

.benefits-container {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
    justify-content: center;
    margin-top: 2rem;
}

.benefit-item {
    position: relative;
    flex: 1;
    min-width: 280px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    padding: 2.5rem;
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: fadeInUp 1s ease backwards;
    overflow: hidden;
}

.benefit-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #00d4ff, #f093fb);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.benefit-item:hover::before {
    transform: scaleX(1);
}

.benefit-item:nth-child(1) { animation-delay: 0.2s; }
.benefit-item:nth-child(2) { animation-delay: 0.4s; }
.benefit-item:nth-child(3) { animation-delay: 0.6s; }

.benefit-item:hover {
    transform: translateY(-10px) scale(1.02);
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.2);
}

.benefit-icon-wrapper {
    display: inline-block;
    margin-bottom: 1rem;
}

.benefit-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(135deg, #00d4ff, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    line-height: 1;
    opacity: 0.4;
}

.benefit-item h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.benefit-item p {
    opacity: 0.85;
    line-height: 1.7;
    font-weight: 300;
}

.benefit-arrow {
    position: absolute;
    right: 2rem;
    bottom: 2rem;
    font-size: 2rem;
    opacity: 0.3;
    transition: all 0.3s ease;
}

.benefit-item:hover .benefit-arrow {
    opacity: 1;
    transform: translateX(10px);
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    background: rgba(0, 0, 0, 0.2);
    margin-top: 3rem;
}

footer p {
    opacity: 0.8;
}

@media (max-width: 768px) {
    .logo {
        font-size: 2.2rem;
        letter-spacing: 1px;
    }

    .tagline {
        font-size: 1rem;
    }

    .hero-title {
        font-size: 1.8rem;
        padding: 0 1rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .stat-value {
        font-size: 2.5rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    .traffic-subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .traffic-container {
        gap: 2rem;
    }

    .traffic-circle {
        width: 120px;
        height: 120px;
        font-size: 3rem;
    }

    .traffic-item h3 {
        font-size: 1.5rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0.5rem;
    }

    .feature-card {
        padding: 2rem;
    }

    .icon {
        font-size: 3rem;
    }

    .feature-card h3 {
        font-size: 1.3rem;
    }

    .benefits-container {
        gap: 1.5rem;
    }

    .benefit-item {
        min-width: 100%;
        padding: 2rem;
    }

    .benefit-number {
        font-size: 3rem;
    }

    .circle-1,
    .circle-2,
    .circle-3 {
        width: 300px;
        height: 300px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.8rem;
    }

    .tagline {
        font-size: 0.9rem;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .stat-value {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .traffic-subtitle {
        font-size: 0.95rem;
    }

    .traffic-container {
        gap: 1.5rem;
    }

    .traffic-circle {
        width: 100px;
        height: 100px;
        font-size: 2.5rem;
    }

    .traffic-item h3 {
        font-size: 1.3rem;
    }

    .traffic-item p {
        font-size: 0.9rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .benefit-arrow {
        right: 1.5rem;
        bottom: 1.5rem;
        font-size: 1.5rem;
    }
}