:root {
    --apple-black: #1d1d1f;
    --apple-white: #f5f5f7;
    --apple-blue: #0071e3;
    --apple-gray: #86868b;
    --apple-dark-gray: #424245;
    --pantau-green: #00a896;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, 
                 Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    background-color: var(--apple-white);
    color: var(--apple-black);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 44px;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.nav-container {
    width: 100%;
    max-width: 980px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 22px;
}

.nav-logo {
    color: var(--apple-white);
    font-size: 21px;
    font-weight: 500;
    text-decoration: none;
}

.nav-logo span {
    color: var(--pantau-green);
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-link {
    color: var(--apple-white);
    font-size: 12px;
    font-weight: 400;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.nav-link:hover {
    opacity: 1;
}

.nav-button {
    background-color: var(--pantau-green);
    color: white;
    border: none;
    border-radius: 20px;
    padding: 4px 11px;
    font-size: 12px;
    font-weight: 400;
    cursor: pointer;
    transition: background-color 0.3s;
}

.nav-button:hover {
    background-color: #008b7d;
}

:root {
    --apple-black: #1d1d1f;
    --apple-white: #f5f5f7;
    --apple-blue: #0071e3;
    --apple-gray: #86868b;
    --apple-dark-gray: #424245;
    --pantau-green: #00a896;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, 
                 Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    background-color: var(--apple-white);
    color: var(--apple-black);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Liquid Water Effect */
#bubbles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: floatBubble linear infinite;
    z-index: -1;
}

@keyframes floatBubble {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) rotate(360deg);
        opacity: 0;
    }
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(90deg, #00a896, #0071e3);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 44px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.nav-container {
    width: 100%;
    max-width: 980px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 22px;
}

.nav-logo {
    color: var(--apple-white);
    font-size: 21px;
    font-weight: 500;
    text-decoration: none;
}

.nav-logo span {
    color: var(--pantau-green);
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-link {
    color: var(--apple-white);
    font-size: 12px;
    font-weight: 400;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.nav-link:hover {
    opacity: 1;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 44px;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    z-index: -2;
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 70% 30%, rgba(0, 168, 150, 0.15) 0%, transparent 30%),
                radial-gradient(circle at 30% 70%, rgba(0, 113, 227, 0.15) 0%, transparent 30%);
    animation: liquidMovement 20s infinite alternate;
    z-index: -1;
}

@keyframes liquidMovement {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(-5%, 5%) rotate(2deg);
    }
    50% {
        transform: translate(5%, -3%) rotate(-1deg);
    }
    75% {
        transform: translate(-3%, 4%) rotate(3deg);
    }
    100% {
        transform: translate(3%, -2%) rotate(-2deg);
    }
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 10px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards 0.3s;
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 400;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.8);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards 0.5s;
}

.hero-description {
    font-size: 17px;
    font-weight: 400;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.7);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards 0.7s;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards 0.9s;
}

.hero-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 17px;
    font-weight: 500;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.hero-button-primary {
    background: var(--apple-blue);
    color: white;
}

.hero-button-secondary {
    background: var(--apple-black);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-button:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    animation: fadeIn 1s forwards 1.5s;
    z-index: 1;
}

.scroll-arrow {
    margin-top: 5px;
    animation: bounce 2s infinite;
}

/* Section Dividers */
section:not(:first-child)::before {
    content: '';
    display: block;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
    margin: 0 auto 100px;
    max-width: 800px;
}

/* Section Common Styles */
.section-header {
    text-align: center;
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(20px);
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 10px;
}

.section-subtitle {
    font-size: 21px;
    font-weight: 400;
    color: var(--apple-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: 100px 0;
    background-color: var(--apple-white);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.feature-card {
    background-color: white;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-image-container {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.feature-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.feature-card:hover .feature-image {
    transform: scale(1.1);
}

.feature-content {
    padding: 25px;
}

.feature-title {
    font-size: 21px;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-description {
    font-size: 17px;
    color: var(--apple-gray);
    margin-bottom: 15px;
}

.feature-learn-more {
    color: var(--pantau-green);
    font-size: 17px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s;
}

.feature-learn-more:hover {
    color: #008b7d;
}

/* Cities Section */
.cities {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.city-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.city-card {
    background-color: white;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.city-card:hover {
    transform: translateY(-5px);
}

.city-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.city-name {
    font-size: 21px;
    font-weight: 600;
    margin: 15px 0 5px;
    padding: 0 20px;
}

.city-stats {
    font-size: 16px;
    color: var(--pantau-green);
    padding: 0 20px 20px;
}

/* Demo Section */
.demo {
    padding: 100px 0;
    background-color: var(--apple-black);
    color: white;
    position: relative;
    overflow: hidden;
}

.demo-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
}

.demo-header {
    text-align: center;
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(20px);
}

.demo-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 10px;
}

.demo-subtitle {
    font-size: 21px;
    font-weight: 400;
    color: var(--apple-gray);
    max-width: 600px;
    margin: 0 auto;
}

.demo-video-container {
    width: 100%;
    max-width: 800px;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
    opacity: 0;
    transform: translateY(20px);
}

.demo-video {
    width: 100%;
    display: block;
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    width: 100%;
    margin-top: 60px;
}

.demo-stat {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}

.demo-stat-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--pantau-green);
}

.demo-stat-label {
    font-size: 17px;
    color: var(--apple-gray);
}

/* CTA Section */
.cta {
    padding: 100px 0;
    text-align: center;
    background-color: var(--apple-white);
}

.cta-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
}

.cta-subtitle {
    font-size: 21px;
    font-weight: 400;
    color: var(--apple-gray);
    max-width: 600px;
    margin: 0 auto 40px;
    opacity: 0;
    transform: translateY(20px);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    opacity: 0;
    transform: translateY(20px);
}

/* Footer */
.footer {
    background-color: var(--apple-black);
    color: var(--apple-gray);
    padding: 60px 0 30px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-column-title {
    color: white;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links {
    list-style: none;
}

.footer-link {
    margin-bottom: 10px;
}

.footer-link a {
    color: var(--apple-gray);
    font-size: 12px;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-link a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid var(--apple-dark-gray);
    padding-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-copyright {
    font-size: 12px;
}

.footer-legal-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.footer-legal-link {
    color: var(--apple-gray);
    font-size: 12px;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-legal-link:hover {
    color: white;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 21px;
    }
    
    .hero-buttons, .cta-buttons {
        flex-direction: row; /* Changed from column to row */
        flex-wrap: wrap; /* Allow wrapping if needed */
        justify-content: center;
        gap: 10px; /* Reduced gap */
    }
    
    .hero-button {
        padding: 8px 16px; /* Smaller padding */
        font-size: 14px; /* Smaller font */
        min-width: 140px; /* Minimum width to prevent too small buttons */
    }
    
    .section-title, .demo-title, .cta-title {
        font-size: 32px;
    }
    
    .section-subtitle, .demo-subtitle, .cta-subtitle {
        font-size: 17px;
    }
    
    .feature-grid, .city-grid, .demo-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
   .hero-buttons, .cta-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .hero-button {
        width: 100%; /* Full width buttons */
        justify-content: center;
    }
}
@media (max-width: 600px) and (min-width: 481px) {
    .hero-buttons, .cta-buttons {
        gap: 8px; /* Even smaller gap */
    }
    
    .hero-button {
        padding: 6px 12px;
        font-size: 13px;
    }
}