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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #0f1419 0%, #1a2332 50%, #2d3748 100%);
    color: white;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Content Sections */
.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(15, 20, 25, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-brand .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #00d4aa;
}

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

.nav-link {
    color: #a0aec0;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #00d4aa;
}

/* Hamburger Menu */
.hamburger-menu {
    display: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger-icon span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #a0aec0;
    margin: 5px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    flex-direction: column;
    gap: 1rem;
    z-index: 999;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu.active {
    display: flex;
}

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 0.5rem 0;
    min-width: 200px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    z-index: 1000;
}

.nav-dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-item {
    display: block;
    padding: 0.75rem 1.5rem;
    color: #a0aec0;
    text-decoration: none;
    transition: all 0.3s ease;
}

.dropdown-item:hover {
    background: rgba(0, 212, 170, 0.1);
    color: #00d4aa;
}

.dropdown-item.disabled {
    color: #4a5568;
    cursor: not-allowed;
}

.dropdown-item.disabled:hover {
    background: transparent;
    color: #4a5568;
}

.btn-secondary {
    background: #00d4aa;
    border: 1px solid #00d4aa;
    color: black;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #00b894;
    border-color: #00b894;
    color: black;
    transform: translateY(-1px);
}

.btn-secondary.connected {
    background: #4CAF50 !important;
    border-color: #4CAF50 !important;
    color: white !important;
}

.btn-secondary.connected:hover {
    background: #45a049 !important;
    border-color: #45a049 !important;
    color: white !important;
    transform: translateY(-1px);
}

/* Main Content */
.main-content {
    padding-top: 80px;
    min-height: 100vh;
}

.hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    align-items: center;
    justify-content: center;
}

.hero-text {
    max-width: 500px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.highlight {
    background: linear-gradient(45deg, #00d4aa, #00cec9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #a0aec0;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.cta-section {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4aa, #00cec9);
    border: none;
    color: black;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #00b894, #00a085);
    color: black;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 170, 0.4);
}

.btn-outline {
    background: transparent;
    border: 1px solid #4a5568;
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    border-color: #00d4aa;
    color: #00d4aa;
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.2);
}

.btn-outline:disabled {
    background: transparent;
    border-color: #4a5568;
    color: #4a5568;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.btn-outline:disabled:hover {
    border-color: #4a5568;
    color: #4a5568;
    box-shadow: none;
    transform: none;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #2d3748, #1a202c);
    border-radius: 30px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, #1a202c, #2d3748);
    border-radius: 20px;
    padding: 20px;
    overflow: hidden;
    position: relative;
}

.app-interface {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.phone-logo-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    pointer-events: none;
}

.logo-overlay-image {
    width: 150px;
    height: 150px;
    object-fit: contain;
    opacity: 1;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.app-title {
    font-weight: 600;
    color: #00d4aa;
}

.app-balance {
    font-weight: 700;
    font-size: 1.2rem;
}

.chart-area {
    flex: 1;
    background: linear-gradient(45deg, #00d4aa, #00cec9);
    border-radius: 12px;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.chart-placeholder {
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 100"><path d="M10,80 Q50,20 100,40 T190,30" stroke="white" stroke-width="2" fill="none" opacity="0.8"/></svg>') center/contain no-repeat;
}

.action-buttons {
    display: flex;
    gap: 1rem;
}

.app-btn {
    flex: 1;
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.app-btn.green {
    background: linear-gradient(135deg, #00d4aa, #00cec9);
    color: black;
    box-shadow: 0 2px 8px rgba(0, 212, 170, 0.3);
}

.app-btn.blue {
    background: transparent;
    border: 1px solid #4a5568;
    color: white;
}

.app-btn.green:hover {
    background: linear-gradient(135deg, #00b894, #00a085);
    color: black;
    box-shadow: 0 4px 12px rgba(0, 212, 170, 0.4);
}

.app-btn.blue:hover {
    border-color: #00d4aa;
    color: #00d4aa;
}

.app-btn.blue:disabled {
    background: transparent;
    border-color: #4a5568;
    color: #4a5568;
    cursor: not-allowed;
    opacity: 0.6;
}

.app-btn.blue:disabled:hover {
    border-color: #4a5568;
    color: #4a5568;
}

.download-section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.store-badges {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    min-width: 160px;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    color: white;
}

.badge:hover {
    background: rgba(0, 212, 170, 0.1);
    border-color: #00d4aa;
    transform: translateY(-2px);
}

.badge-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.badge.chrome:hover {
    border-color: #4285F4;
}

.badge.android:hover {
    border-color: #A4C639;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .cta-section {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary, .btn-outline {
        width: 100%;
        max-width: 300px;
    }
    
    .phone-mockup {
        width: 240px;
        height: 480px;
    }
    
    .store-badges {
        flex-direction: row;
        gap: 1rem;
        justify-content: center;
    }
    
    .badge {
        min-width: 140px;
        font-size: 0.9rem;
        padding: 0.7rem 1.2rem;
    }
    
    .badge-icon {
        width: 18px;
        height: 18px;
    }
    
    .nav-links {
        display: none;
    }
    
    .hamburger-menu {
        display: block;
    }
    
    .mobile-menu {
        display: none;
        flex-direction: column;
        gap: 1rem;
    }
    
    .mobile-menu.active {
        display: flex;
    }
    
    .mobile-menu .nav-link {
        padding: 0.5rem 0;
        font-size: 1.1rem;
    }
    
    .mobile-menu .nav-dropdown {
        position: relative;
    }
    
    .mobile-menu .dropdown-menu {
        position: static;
        display: none;
        background: rgba(255, 255, 255, 0.05);
        border: none;
        box-shadow: none;
        padding: 0.5rem 1rem;
        margin-top: 0.5rem;
        border-radius: 4px;
    }
    
    .mobile-menu .nav-dropdown.active .dropdown-menu {
        display: block;
    }
    
    .mobile-menu .dropdown-toggle::after {
        content: "▼";
        font-size: 0.7rem;
        margin-left: 0.5rem;
        vertical-align: middle;
    }
    
    .mobile-menu .dropdown-toggle.active::after {
        content: "▲";
    }
}

/* About Section */
.about-section {
    padding: 5rem 2rem;
    background: rgba(15, 20, 25, 0.7);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: #00d4aa;
}

.about-description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #a0aec0;
    margin-bottom: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: rgba(26, 35, 50, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: #00d4aa;
    box-shadow: 0 10px 25px rgba(0, 212, 170, 0.2);
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #00d4aa;
}

.feature-card p {
    font-size: 1rem;
    line-height: 1.6;
    color: #a0aec0;
}

@media (max-width: 768px) {
    .about-section {
        padding: 3rem 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-description {
        font-size: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
}

/* Footer */
.site-footer {
    background: rgba(15, 20, 25, 0.9);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright {
    color: #a0aec0;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    color: #a0aec0;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #00d4aa;
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem 2rem;
        justify-items: center;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
}

/* Footer dropdown menu */
.footer-links .nav-dropdown {
    position: relative;
    display: inline-block;
}

.footer-links .dropdown-menu {
    position: absolute;
    top: auto !important;
    bottom: 100% !important;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 0.5rem 0;
    min-width: 200px;
    box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    display: none;
}

.footer-links .nav-dropdown:hover .dropdown-menu {
    display: block;
}

.footer-links .dropdown-item {
    display: block;
    padding: 0.75rem 1.5rem;
    color: #a0aec0;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
}

.footer-links .dropdown-item:hover {
    background: rgba(0, 212, 170, 0.1);
    color: #00d4aa;
}

.footer-links .dropdown-item.disabled {
    color: #4a5568;
    cursor: not-allowed;
}

.footer-links .dropdown-item.disabled:hover {
    background: transparent;
    color: #4a5568;
}