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

:root {
    --bg-primary: #151515;
    --bg-card: #262525;
    --border: #323232;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: #696969;
    --accent: #EA4C03;
    --accent-hover: #c43f02;
    --highlight: #EFF414;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: background-color 0.3s ease;
    padding: 16px 0;
}

.navbar.scrolled {
    background-color: var(--bg-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: inline-block;
}

.logo {
    height: 32px;
    width: auto;
}

.nav-cta {
    background: transparent;
    border: 1px solid var(--text-primary);
    color: var(--text-primary);
    padding: 8px 20px;
    border-radius: 4px;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background-color: var(--text-primary);
    color: var(--bg-primary);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-headline {
    font-size: 64px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero-subheadline {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.cta-button {
    background-color: var(--accent);
    color: var(--text-primary);
    border: none;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.cta-button:hover {
    background-color: var(--accent-hover);
}

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

.placeholder-image {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 4 / 3;
    background-color: var(--bg-card);
    border: 2px dashed var(--border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-text {
    color: var(--text-muted);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-product-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 8px;
    object-fit: contain;
}

.product-image-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 8px;
    object-fit: contain;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-primary);
}

/* Product Overview */
.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-features-list {
    list-style: none;
    font-size: 18px;
    line-height: 2;
}

.product-features-list li {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.product-features-list strong {
    color: var(--text-primary);
}

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

/* App Showcase */
.app-showcase {
    background-color: var(--bg-card);
}

.app-showcase-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin: 0 auto;
}

.app-screenshot {
    text-align: center;
}

.phone-frame {
    background: #000;
    border-radius: 32px;
    padding: 12px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
    display: inline-block;
    margin-bottom: 24px;
}

.phone-frame img {
    width: 100%;
    max-width: 260px;
    height: auto;
    border-radius: 24px;
    display: block;
}

.app-screenshot-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.app-screenshot-description {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.6;
    max-width: 340px;
    margin: 0 auto;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.feature-card {
    background-color: var(--bg-card);
    padding: 32px;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.feature-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.step {
    text-align: center;
}

.step-icon {
    margin-bottom: 24px;
}

.icon-placeholder {
    width: 80px;
    height: 80px;
    background-color: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
    margin: 0 auto;
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Audience Section */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.audience-card {
    background-color: var(--bg-card);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.audience-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.audience-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Signup Section */
.signup {
    background-color: var(--bg-card);
    padding: 80px 0;
}

.signup-subtext {
    text-align: center;
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.signup-form {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-input,
.form-select {
    width: 100%;
    padding: 14px 16px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 16px;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-select {
    cursor: pointer;
}

.form-submit {
    width: 100%;
    margin-top: 8px;
}

.form-message {
    margin-top: 16px;
    text-align: center;
    font-size: 14px;
    min-height: 20px;
}

.form-message.success {
    color: var(--highlight);
}

.form-message.error {
    color: #FF4B61;
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.footer-logo {
    height: 24px;
    width: auto;
    opacity: 0.8;
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 14px;
}

/* Fade-in Animation */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-headline {
        font-size: 48px;
    }

    .product-content {
        grid-template-columns: 1fr;
    }

    .app-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

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

    .steps {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

@media (max-width: 640px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-headline {
        font-size: 36px;
    }

    .hero-subheadline {
        font-size: 18px;
    }

    .section-title {
        font-size: 36px;
        margin-bottom: 40px;
    }

    section {
        padding: 60px 0;
    }

    .feature-card,
    .audience-card {
        padding: 24px;
    }

    .app-showcase-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}