/* Reset and Base Styles */
:root {
    --logo-teal: #2DD4BF;
    --logo-teal-dark: #0D9488;
    --logo-teal-light: #5EEAD4;
    --logo-navy: #1E293B;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    height: 80px;
    width: auto;
}

.nav-logo h2 {
    color: var(--logo-teal);
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--logo-teal);
}

.cta-button {
    background: var(--logo-teal);
    color: white !important;
    padding: 10px 20px;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.cta-button:hover {
    background: var(--logo-teal-dark);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Language Switcher */
.language-switcher {
    margin-left: 1rem;
}

#language-select {
    background: transparent;
    border: 1px solid var(--logo-teal);
    border-radius: 6px;
    padding: 5px 10px;
    color: var(--logo-teal);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

#language-select:hover {
    background: var(--logo-teal);
    color: white;
}

#language-select option {
    background: white;
    color: #333;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #64748b;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.primary-button {
    background: var(--logo-teal);
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(45, 212, 191, 0.2);
}

.primary-button:hover {
    background: var(--logo-teal-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(45, 212, 191, 0.3);
}

.secondary-button {
    background: transparent;
    color: var(--logo-teal);
    padding: 15px 30px;
    text-decoration: none;
    border: 2px solid var(--logo-teal);
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.secondary-button:hover {
    background: var(--logo-teal);
    color: white;
    transform: translateY(-2px);
}

/* Hero Carousel */
.hero-carousel {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
}

.carousel-slide {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    width: 100%;
}

.carousel-slide.active {
    display: block;
    opacity: 1;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(30, 41, 59, 0.3);
    cursor: pointer;
    transition: background 0.3s ease;
}

.dot.active {
    background: var(--logo-teal);
}

.dot:hover {
    background: rgba(30, 41, 59, 0.5);
}

.dot.active:hover {
    background: var(--logo-teal);
}

/* Mobile Screenshot */
.mobile-screenshot {
    width: 300px;
    height: 600px;
    margin: 0 auto;
    border-radius: 40px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    background: #1e293b;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.mobile-screenshot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30px;
}

/* Phone Mockup */
.phone-mockup {
    width: 300px;
    height: 600px;
    background: #1e293b;
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    margin: 0 auto;
    position: relative;
}

.screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
}

.app-preview {
    padding: 30px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100%;
}

.balance-card {
    background: white;
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.balance-card h3 {
    color: #64748b;
    font-size: 0.9rem;
    margin-bottom: 10px;
    font-weight: 500;
}

.amount {
    font-size: 2.2rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 20px;
}

.categories {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.category {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: #64748b;
}

.color-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.color-dot.food { background: #ef4444; }
.color-dot.transport { background: #3b82f6; }
.color-dot.entertainment { background: #8b5cf6; }

/* Problem Section */
.problem-section {
    padding: 80px 0;
    background: white;
}

.problem-section h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 3rem;
    font-weight: 700;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.problem-card {
    text-align: center;
    padding: 2rem;
    border-radius: 16px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.problem-card h3 {
    font-size: 1.3rem;
    color: #1e293b;
    margin-bottom: 1rem;
    font-weight: 600;
}

.problem-card p {
    color: #64748b;
    line-height: 1.6;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background: #f8fafc;
}

.features-section h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 3rem;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    color: #1e293b;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: #64748b;
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works-section {
    padding: 80px 0;
    background: white;
}

.how-it-works-section h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #1e293b;
    margin-bottom: 3rem;
    font-weight: 700;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--logo-teal);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step h3 {
    font-size: 1.5rem;
    color: #1e293b;
    margin-bottom: 1rem;
    font-weight: 600;
}

.step p {
    color: #64748b;
    line-height: 1.6;
    max-width: 300px;
    margin: 0 auto;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--logo-teal) 0%, var(--logo-teal-dark) 100%);
    text-align: center;
    color: white;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.download-button {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    padding: 15px 25px;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.download-button:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.download-note {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 1rem;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--logo-teal);
}

.footer-brand p {
    color: #94a3b8;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column ul li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .language-switcher {
        margin-left: 0;
        margin-top: 1rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .phone-mockup, .mobile-screenshot {
        width: 250px;
        height: 500px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .phone-mockup, .mobile-screenshot {
        width: 200px;
        height: 400px;
    }
    
    .balance-card {
        padding: 20px;
    }
    
    .amount {
        font-size: 1.8rem;
    }
}