/* Reset and Base Styles */
* {
    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: #1a202c;
    overflow-x: hidden;
}

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

/* Navigation */
.nav {
    padding: 20px 0;
    background: white;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: "Lexend", sans-serif;
    font-size: 50px;
    font-weight: 700;
    background: linear-gradient(135deg, #0f766e 0%, #1e40af 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-cta {
    padding: 10px 24px;
    background: linear-gradient(135deg, #0f766e 0%, #1e40af 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: transform 0.2s;
}

.nav-cta:hover {
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: 80px 0 120px;
    background: linear-gradient(135deg, #0f766e 0%, #1e40af 100%);
    color: white;
}

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

.hero-title {
    font-family: "Zalando Sans Expanded", sans-serif;
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.6;
}

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

.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.2s;
    text-align: center;
}

.btn-primary {
    background: white;
    color: #0f766e;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-large {
    padding: 20px 48px;
    font-size: 18px;
}

.cta-subtext {
    font-size: 14px;
    opacity: 0.8;
}

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

.screenshot-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    border: 2px dashed rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.placeholder-content {
    text-align: center;
    opacity: 0.6;
}

.placeholder-content svg {
    margin-bottom: 12px;
    opacity: 0.5;
}

.placeholder-content p {
    font-size: 14px;
}

.section-title {
    font-family: "Lexend", sans-serif;
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
}

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

.steps {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 32px;
    margin-bottom: 48px;
    align-items: flex-start;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #0f766e 0%, #1e40af 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 24px;
    margin-bottom: 12px;
    color: #1a202c;
}

.step-content p {
    color: #6b7280;
    font-size: 16px;
    line-height: 1.7;
}

/* How It Works Badges */
.how-it-works-badges {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 64px;
    padding-top: 48px;
    border-top: 1px solid #e5e7eb;
}

.badge {
    font-size: 15px;
    font-weight: 600;
    color: #4b5563;
    background: #f3f4f6;
    padding: 12px 20px;
    border-radius: 50px;
}

/* Social Proof */
.social-proof {
    padding: 80px 0;
}

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

.audience-card {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 40px;
    border-radius: 12px;
    border-left: 4px solid #3b82f6;
}

.audience-card h3 {
    font-size: 18px;
    margin-bottom: 16px;
    color: #1a202c;
}

.audience-card p {
    color: #4b5563;
    font-style: italic;
    line-height: 1.7;
}

/* Tracking Section */
.tracking {
    padding: 80px 0;
    background: white;
}

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

.tracking-intro {
    font-size: 17px;
    color: #4b5563;
    line-height: 1.7;
    margin-bottom: 36px;
}

.tracking-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tracking-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.tracking-feature-icon {
    font-size: 28px;
    flex-shrink: 0;
    margin-top: 4px;
}

.tracking-feature h4 {
    font-size: 18px;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 4px;
}

.tracking-feature p {
    font-size: 15px;
    color: #6b7280;
    line-height: 1.6;
}

.tracking-screenshot {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Debt Payoff Section */
.debt-payoff {
    padding: 80px 0;
    background: #f9fafb;
}

.debt-payoff-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.debt-payoff-intro {
    font-size: 17px;
    color: #4b5563;
    line-height: 1.7;
    margin-bottom: 32px;
}

.debt-payoff-example {
    background: white;
    border-radius: 12px;
    padding: 28px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    margin-bottom: 28px;
    border: 1px solid #e5e7eb;
}

.example-label {
    font-size: 15px;
    font-weight: 600;
    color: #1a202c;
    margin-bottom: 20px;
    display: block;
}

.debt-stats {
    display: flex;
    gap: 16px;
}

.debt-stat {
    flex: 1;
    text-align: center;
    padding: 16px 8px;
    background: #fef2f2;
    border-radius: 8px;
}

.debt-stat-value {
    display: block;
    font-size: 22px;
    font-weight: 700;
    color: #dc2626;
    margin-bottom: 4px;
}

.debt-stat-label {
    display: block;
    font-size: 12px;
    color: #991b1b;
    line-height: 1.3;
}

.debt-payoff-cta-text {
    font-size: 15px;
    color: #6b7280;
    line-height: 1.7;
}

/* Debt comparison visual */
.debt-comparison {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.debt-comparison-item {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid #e5e7eb;
}

.debt-comparison-without {
    border-top: 4px solid #dc2626;
}

.debt-comparison-with {
    border-top: 4px solid #0f766e;
}

.debt-comparison-item h4 {
    font-size: 17px;
    margin-bottom: 4px;
    color: #1a202c;
}

.debt-comparison-item p {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 14px;
}

.debt-bar-container {
    background: #f3f4f6;
    border-radius: 6px;
    height: 12px;
    overflow: hidden;
    margin-bottom: 8px;
}

.debt-bar {
    height: 100%;
    border-radius: 6px;
    transition: width 0.6s ease;
}

.debt-bar-full {
    width: 100%;
    background: linear-gradient(90deg, #dc2626, #ef4444);
}

.debt-bar-partial {
    width: 29%;
    background: linear-gradient(90deg, #0f766e, #1e40af);
}

.debt-bar-label {
    font-size: 13px;
    font-weight: 600;
    color: #4b5563;
}

.debt-comparison-with .debt-bar-label {
    color: #0f766e;
}

/* Science Section */
.science {
    padding: 80px 0;
    background: #1a202c;
    color: white;
}

.science-title {
    color: white;
}

.science-intro {
    text-align: center;
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 680px;
    margin: 0 auto 56px;
    line-height: 1.7;
}

.science-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 64px;
}

.science-stat {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
}

.science-stat-value {
    display: block;
    font-family: "Lexend", sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
}

.science-stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.5;
}

.science-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.science-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 36px 28px;
}

.science-card-icon {
    font-size: 36px;
    margin-bottom: 18px;
    display: block;
}

.science-card h3 {
    font-size: 20px;
    margin-bottom: 14px;
    color: white;
}

.science-card p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

/* Download CTA */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #0f766e 0%, #1e40af 100%);
    color: white;
    text-align: center;
}

.download-content h2 {
    font-family: "Lexend", sans-serif;
    font-size: 48px;
    margin-bottom: 16px;
}

.download-content p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.download-note {
    font-size: 14px;
    margin-top: 16px;
    opacity: 0.8;
}

/* Footer */
.footer {
    padding: 60px 0 40px;
    background: #1a202c;
    color: white;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.footer-brand .logo {
    font-size: 28px;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #0f766e 0%, #1e40af 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    opacity: 0.7;
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
    font-size: 14px;
}

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

    .hero-title {
        font-size: 42px;
    }

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

    .debt-payoff-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-content {
        flex-direction: column;
        gap: 32px;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 32px;
    }

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

    .section-title {
        font-size: 28px;
    }

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

    .download-content h2 {
        font-size: 32px;
    }
}