:root {
    --bg-light: #FAFAFA;
    --bg-dark: #141414;
    --text-primary: #141414;
    --text-secondary: #666666;
    --text-white: #FFFFFF;
    --accent-gradient: linear-gradient(135deg, #333333 0%, #000000 100%);
    --card-bg: #FFFFFF;
    --border-radius: 24px;
    --border-radius-sm: 12px;
    --padding-section: 120px 24px;
    --max-width: 1200px;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1 {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 24px;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
}

p {
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.eyebrow {
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.subhead {
    font-size: 1.5rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
}

/* Layout Utilities */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

.section {
    padding: var(--padding-section);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 24px 40px;
    background: rgba(250, 250, 250, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    justify-content: center;
}

.nav-container {
    width: 100%;
    max-width: var(--max-width);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: -0.03em;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--text-primary);
    color: var(--text-white) !important;
    padding: 10px 20px;
    border-radius: 100px;
    transition: transform 0.2s;
}

.nav-cta:hover {
    transform: scale(1.05);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 60px;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    margin-bottom: 60px;
    z-index: 2;
}

.primary-btn {
    display: inline-block;
    background: var(--text-primary);
    color: var(--text-white);
    padding: 16px 32px;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.primary-btn.large {
    font-size: 1.5rem;
    padding: 20px 48px;
}

.secondary-micro-copy {
    margin-top: 32px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.dot {
    margin: 0 8px;
    opacity: 0.5;
}

.hero-visual {
    width: 100%;
    max-width: 400px;
    position: relative;
    /* margin-bottom: -100px; Allows it to peek */
}

.device-mockup {
    background: #000;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.2);
    border: 8px solid #222;
}

.mockup-screen {
    background: #fff;
    border-radius: 32px;
    height: 700px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 
.map-placeholder {
    flex: 1;
    background-color: #e5e5e5;
    background-image: 
        radial-gradient(#ccc 1px, transparent 1px),
        repeating-linear-gradient(45deg, rgba(255,255,255,0.5) 0, rgba(255,255,255,0.5) 2px, transparent 2px, transparent 10px);
    background-size: 20px 20px, 100% 100%;
    position: relative;
}

.map-placeholder::after {
    content: "📍";
    font-size: 40px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.result-card {
    background: white;
    padding: 24px;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.05);
}

.card-title {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.card-rating {
    color: #FFB800;
    font-weight: 700;
    margin-top: 4px;
}

.pick-btn {
    display: block;
    width: 100%;
    background: var(--text-primary);
    color: white;
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    margin-top: 16px;
    cursor: pointer;
} 
*/

/* How It Works */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.step-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: left;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.step-card:hover {
    transform: translateY(-5px);
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--text-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 24px;
}

/* Why nbbl - Dark Section */
.dark-section {
    background-color: var(--bg-dark);
    color: var(--text-white);
}

.dark-section h2,
.dark-section h3,
.dark-section p {
    color: var(--text-white);
}

.dark-section .emphasis {
    font-size: 2rem;
    font-weight: 700;
    margin-top: 32px;
    background: linear-gradient(90deg, #fff, #999);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.dark-section .large-body {
    font-size: 1.5rem;
    line-height: 1.4;
    opacity: 0.9;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 80px;
}

.feature-block {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* Premium */
.premium-card {
    background: white;
    border-radius: 32px;
    padding: 60px;
    max-width: 600px;
    margin: 40px auto 0;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.premium-features {
    list-style: none;
    margin: 40px 0;
    padding: 0;
}

.premium-features li {
    font-size: 1.25rem;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.premium-features li:last-child {
    border-bottom: none;
}

.coming-soon {
    opacity: 0.5;
    font-size: 1rem !important;
}

.pricing {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.trial {
    color: #4CAF50;
    font-weight: 600;
}

.trust-copy {
    font-size: 0.875rem;
    color: var(--text-secondary);
    opacity: 0.8;
}

/* Privacy */
.privacy-body {
    max-width: 600px;
    margin: 40px auto;
    font-size: 1.5rem;
    line-height: 1.6;
}

.standout {
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 24px;
}

.small-statement {
    font-size: 0.875rem;
    opacity: 0.6;
    margin-top: 40px;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: 80px 24px 40px;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

.copyright {
    font-size: 0.875rem;
    opacity: 0.5;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-delay {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out 0.2s, transform 0.8s ease-out 0.2s;
}

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

/* Mobile Utilities */
.nav-cta-mobile {
    display: none;
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --padding-section: 80px 20px;
    }

    .navbar {
        padding: 16px 20px;
        justify-content: space-between;
    }

    .nav-links {
        display: none;
    }

    /* Keep CTA visible on mobile if desired, or add a hamburger menu. 
       For now, let's show the CTA but hide links */
    .nav-links.mobile-hidden {
        display: none;
    }

    .nav-cta-mobile {
        display: block;
        background: var(--text-primary);
        color: white;
        padding: 8px 16px;
        border-radius: 100px;
        text-decoration: none;
        font-size: 0.875rem;
        font-weight: 600;
    }

    h1 {
        font-size: 2.75rem;
        margin-bottom: 16px;
    }

    h2 {
        font-size: 2rem;
    }

    .subhead {
        font-size: 1.125rem;
        margin-bottom: 24px;
    }

    .hero-section {
        padding-top: 100px;
        padding-bottom: 40px;
    }

    .hero-content {
        margin-bottom: 40px;
    }

    .hero-visual {
        max-width: 100%;
        margin-top: 20px;
    }

    .device-mockup {
        border-radius: 24px;
        border-width: 4px;
    }

    .mockup-screen {
        height: 50vh;
        min-height: 400px;
        max-height: 600px;
    }

    .premium-card {
        padding: 32px 20px;
        border-radius: 24px;
    }

    .premium-features li {
        font-size: 1.125rem;
    }

    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 32px;
    }

    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
}