/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4ECDC4;
    --primary-dark: #3DB8B0;
    --secondary: #FF6B6B;
    --dark: #0F172A;
    --dark-light: #1E293B;
    --gray: #64748B;
    --gray-light: #94A3B8;
    --white: #FFFFFF;
    --gradient: linear-gradient(135deg, #4ECDC4 0%, #44A3AA 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 24px;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--gray-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--white);
}

.nav-cta {
    background: var(--primary);
    color: var(--dark) !important;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600 !important;
}

.nav-cta:hover {
    background: var(--primary-dark);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s ease;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    background: var(--dark-light);
    padding: 20px;
    border-radius: 12px;
    margin-top: 16px;
    gap: 16px;
}

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

.mobile-menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: 12px;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.mobile-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-block;
    background: rgba(78, 205, 196, 0.1);
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--gray-light);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--dark);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(78, 205, 196, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--dark);
}

.hero-stats {
    display: flex;
    gap: 40px;
}

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

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    font-size: 14px;
    color: var(--gray);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: var(--dark-light);
    border-radius: 40px;
    padding: 12px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.5);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--dark);
    border-radius: 32px;
    overflow: hidden;
}

.app-preview {
    padding: 20px;
    height: 100%;
}

.preview-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
}

.preview-icon {
    font-size: 24px;
}

.preview-header span:last-child {
    font-weight: 600;
    font-size: 18px;
}

.preview-chat {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-bubble {
    padding: 14px 18px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.5;
}

.chat-bubble.user {
    background: var(--primary);
    color: var(--dark);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    max-width: 85%;
}

.chat-bubble.assistant {
    background: var(--dark-light);
    color: var(--white);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    max-width: 90%;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    background: rgba(78, 205, 196, 0.1);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: 100px 24px;
    background: linear-gradient(180deg, var(--dark) 0%, var(--dark-light) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(78, 205, 196, 0.3);
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--gray-light);
    font-size: 15px;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 24px;
    background: var(--dark);
}

.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 280px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
}

.step-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.step-content p {
    color: var(--gray-light);
    font-size: 15px;
}

.step-connector {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
    margin-top: 30px;
}

/* Pricing Section */
.pricing {
    padding: 100px 24px;
    background: linear-gradient(180deg, var(--dark-light) 0%, var(--dark) 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 40px 32px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: rgba(78, 205, 196, 0.3);
}

.pricing-card.featured {
    background: rgba(78, 205, 196, 0.05);
    border-color: var(--primary);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-header {
    margin-bottom: 30px;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.price {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 4px;
}

.currency {
    font-size: 24px;
    font-weight: 600;
    margin-top: 8px;
}

.amount {
    font-size: 56px;
    font-weight: 700;
    line-height: 1;
}

.price-period {
    color: var(--gray);
    font-size: 14px;
    margin-top: 8px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--gray-light);
    font-size: 15px;
}

.pricing-features .check {
    color: var(--primary);
    font-weight: 600;
}

.pricing-card .btn {
    width: 100%;
    justify-content: center;
}

/* Download Section */
.download {
    padding: 100px 24px;
    background: var(--gradient);
    text-align: center;
}

.download-content h2 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}

.download-content p {
    font-size: 18px;
    color: var(--dark);
    opacity: 0.8;
    margin-bottom: 32px;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.store-button {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--dark);
    color: var(--white);
    padding: 14px 28px;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.store-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.store-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.store-label {
    font-size: 11px;
    opacity: 0.8;
}

.store-name {
    font-size: 18px;
    font-weight: 600;
}

.download-note {
    font-size: 14px;
    color: var(--dark);
    opacity: 0.7;
}

/* Footer */
.footer {
    padding: 80px 24px 40px;
    background: var(--dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--gray);
    font-size: 15px;
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-column a {
    display: block;
    color: var(--gray);
    text-decoration: none;
    font-size: 15px;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-bottom p {
    color: var(--gray);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 100px;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-subtitle {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

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

    .hero-image {
        margin-top: 40px;
    }

    .phone-mockup {
        width: 260px;
        height: 520px;
    }

    .step-connector {
        display: none;
    }

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .pricing-card.featured {
        transform: none;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

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

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 36px;
    }

    .btn {
        padding: 14px 24px;
        font-size: 15px;
    }

    .phone-mockup {
        width: 240px;
        height: 480px;
    }
}