/* shadcn-inspired design system */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --background: 0 0% 100%;
    --foreground: 222.2 84% 4.9%;
    --card: 0 0% 100%;
    --card-foreground: 222.2 84% 4.9%;
    --primary: 222.2 47.4% 11.2%;
    --primary-foreground: 210 40% 98%;
    --muted: 210 40% 96.1%;
    --muted-foreground: 215.4 16.3% 46.9%;
    --accent: 210 40% 96.1%;
    --border: 214.3 31.8% 91.4%;
    --input: 214.3 31.8% 91.4%;
    --ring: 222.2 84% 4.9%;
    --radius: 0.5rem;

    --success: 142 76% 36%;
    --destructive: 0 84% 60%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: hsl(var(--background));
    color: hsl(var(--foreground));
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 6rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    color: hsl(var(--foreground));
}

.hero-subtitle {
    font-size: 1.25rem;
    color: hsl(var(--muted-foreground));
    line-height: 1.5;
    margin-bottom: 2rem;
}

.phone-cta {
    background: hsl(var(--muted));
    border: 2px solid hsl(var(--border));
    border-radius: calc(var(--radius) * 2);
    padding: 1.5rem;
    margin-top: 2rem;
}

.phone-cta-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: hsl(var(--muted-foreground));
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.phone-number {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.75rem;
    font-weight: 700;
    color: hsl(var(--primary));
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: all 0.2s;
}

.phone-number:hover {
    color: hsl(var(--primary) / 0.8);
    transform: translateX(4px);
}

.phone-number i {
    width: 1.5rem;
    height: 1.5rem;
}

.phone-cta-note {
    font-size: 0.875rem;
    color: hsl(var(--muted-foreground));
    margin-top: 0.5rem;
}

.hero-video {
    position: relative;
}

.video-embed {
    border-radius: calc(var(--radius) * 2);
    overflow: hidden;
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
}

/* Problem/Solution Cards */
.problem-solution {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 6rem;
}

.card {
    background: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    border-radius: calc(var(--radius) * 2);
    padding: 2rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.2s;
}

.card:hover {
    box-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.1);
}

.card h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: hsl(var(--foreground));
}

.card p {
    color: hsl(var(--muted-foreground));
    line-height: 1.7;
}

.card-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 1.5rem;
}

.problem-card {
    background: hsl(0 84% 60% / 0.02);
    border-left: 3px solid hsl(var(--destructive));
}

.problem-icon {
    color: hsl(var(--destructive));
    background: hsl(0 84% 60% / 0.1);
}

.solution-card {
    background: hsl(142 76% 36% / 0.02);
    border-left: 3px solid hsl(var(--success));
}

.solution-icon {
    color: hsl(var(--success));
    background: hsl(142 76% 36% / 0.1);
}

/* Demo Section */
.demo-section {
    margin-bottom: 6rem;
}

.demo-section h2 {
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 3rem;
    color: hsl(var(--foreground));
}

.demo-phone-box {
    max-width: 600px;
    margin: 0 auto;
    background: hsl(var(--card));
    border: 2px solid hsl(var(--primary));
    border-radius: calc(var(--radius) * 3);
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 10px 40px -10px hsla(var(--primary), 0.3);
}

.demo-phone-icon {
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

.demo-phone-icon i {
    width: 2rem;
    height: 2rem;
}

.demo-phone-box h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: hsl(var(--foreground));
    margin-bottom: 1rem;
}

.demo-phone-number {
    display: inline-block;
    font-size: 2.5rem;
    font-weight: 700;
    color: hsl(var(--primary));
    text-decoration: none;
    margin-bottom: 1.5rem;
    transition: all 0.2s;
    letter-spacing: 0.02em;
}

.demo-phone-number:hover {
    color: hsl(var(--primary) / 0.8);
    transform: scale(1.05);
}

.demo-phone-instruction {
    color: hsl(var(--muted-foreground));
    font-size: 1rem;
    line-height: 1.6;
}

.demo-caption {
    text-align: center;
    margin-top: 2rem;
    color: hsl(var(--muted-foreground));
    font-size: 0.95rem;
    font-style: italic;
}

/* Comparison Section */
.comparison-section {
    margin-bottom: 6rem;
}

.comparison-section h2 {
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 3rem;
    color: hsl(var(--foreground));
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto 2rem;
}

.comparison-card {
    background: hsl(var(--card));
    border: 2px solid hsl(var(--border));
    border-radius: calc(var(--radius) * 2);
    padding: 2rem;
    transition: all 0.2s;
}

.comparison-card.highlight {
    border-color: hsl(var(--primary));
    box-shadow: 0 4px 20px -5px hsla(var(--primary), 0.3);
}

.comparison-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.comparison-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: hsl(var(--foreground));
}

.comparison-icon {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.comparison-icon.bad {
    color: hsl(var(--destructive));
    background: hsl(0 84% 60% / 0.1);
}

.comparison-icon.good {
    color: hsl(var(--success));
    background: hsl(142 76% 36% / 0.1);
}

.comparison-price {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: hsl(var(--foreground));
}

.comparison-price span {
    font-size: 1rem;
    color: hsl(var(--muted-foreground));
    font-weight: 400;
}

.comparison-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.comparison-features li {
    padding: 0.5rem 0;
    color: hsl(var(--muted-foreground));
    border-bottom: 1px solid hsl(var(--border));
}

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

.comparison-total {
    padding: 1rem;
    background: hsl(var(--muted));
    border-radius: var(--radius);
    text-align: center;
}

.comparison-total.savings {
    background: hsl(142 76% 36% / 0.1);
    color: hsl(var(--success));
}

.comparison-savings {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
    color: hsl(var(--success));
}

/* Features Section */
.features-section {
    margin-bottom: 6rem;
}

.features-section h2 {
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 3rem;
    color: hsl(var(--foreground));
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.feature-card {
    background: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    border-radius: calc(var(--radius) * 2);
    padding: 2rem;
    transition: all 0.2s;
}

.feature-card:hover {
    box-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.1);
    border-color: hsl(var(--primary) / 0.3);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: hsl(var(--foreground));
}

.feature-card p {
    color: hsl(var(--muted-foreground));
    font-size: 0.95rem;
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: 4rem 2rem;
    background: hsl(var(--muted));
    border-radius: calc(var(--radius) * 3);
    margin-bottom: 4rem;
}

.cta-section h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: hsl(var(--foreground));
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    height: 2.75rem;
    padding: 0 2rem;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.btn-primary:hover {
    background: hsl(var(--primary) / 0.9);
    box-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.15);
}

.btn-primary:active {
    transform: translateY(1px);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid hsl(var(--border));
    color: hsl(var(--muted-foreground));
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 2rem 1rem;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 4rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .problem-solution {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-bottom: 4rem;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .demo-section,
    .comparison-section,
    .features-section {
        margin-bottom: 4rem;
    }

    .comparison-section h2,
    .demo-section h2,
    .features-section h2 {
        font-size: 1.75rem;
    }

    .cta-section {
        padding: 3rem 1.5rem;
    }

    .cta-section h2 {
        font-size: 1.75rem;
    }

    .demo-phone-box {
        padding: 2rem 1.5rem;
    }

    .demo-phone-number {
        font-size: 2rem;
    }

    .phone-number {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .comparison-price {
        font-size: 2rem;
    }

    .btn {
        width: 100%;
    }

    .phone-number {
        font-size: 1.25rem;
    }

    .demo-phone-number {
        font-size: 1.75rem;
    }
}