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

body {
    font-family: -apple-system, 
        BlinkMacSystemFont, 
        'Segoe UI', Roboto, Oxygen, 
        Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f3ecec;
}

/* Header */
header {
    background: #dee6db;
    border-bottom: 1px solid #e5e7eb;
    padding: 1rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #14522b;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: #22c55e;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
}

nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: #666;
    font-size: 0.95rem;
    transition: color 0.2s;
}

nav a:hover {
    color: #22c55e;
}

.cta-button {
    background: #22c55e;
    color: white;
    padding: 0.65rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    background: #16a34a;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    padding: 6rem 2rem;
    text-align: center;
}

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

.hero h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #1f2937;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.button-primary {
    background: #22c55e;
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: background 0.2s;
    border: none;
    cursor: pointer;
}

.button-primary:hover {
    background: #16a34a;
}

.button-secondary {
    background: white;
    color: #22c55e;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid #22c55e;
    transition: all 0.2s;
    cursor: pointer;
}

.button-secondary:hover {
    background: #f0fdf4;
}

/* Features Section */
.features {
    padding: 2rem 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.features-header {
    text-align: center;
    margin-bottom: 2rem;
}

.features-header h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.features-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.feature-card {
    background: #f9fafb;
    border-radius: 15px;
    padding: 2rem;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 2px solid #567dcd;
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: #dcfce7;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: #1f2937;
}

.feature-card p {
    color: #666;
    line-height: 1.7;
}

/* Feature Detail Sections */
.feature-detail {
    margin: 4rem 0;
    padding: 3rem;
    background: #f9fafb;
    border-radius: 15px;
    border: 1px solid #e5e7eb;
}

.feature-detail:nth-child(even) {
    background: white;
    border: 2px solid #dcfce7;
}

.feature-detail h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.feature-detail p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.screenshot-placeholder {
    background: #e5e7eb;
    border: 2px dashed #9ca3af;
    border-radius: 8px;
    padding: 3rem;
    text-align: center;
    color: #6b7280;
    margin: 2rem 0;
    font-size: 0.95rem;
}

/* Testimonial Section */
.testimonial-section {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    padding: 4rem 2rem;
    margin: 4rem 0;
}

.testimonial {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.testimonial-quote {
    font-size: 1.25rem;
    font-style: italic;
    color: #1f2937;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.testimonial-author {
    color: #666;
    font-weight: 600;
}

/* CTA Section */
.cta-section {
    background: #88a9e3;
    color: white;
    padding: 4rem 2rem;
    text-align: center;
    margin: 4rem 0 0 0;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-section .button-primary {
    background: white;
    color: #22c55e;
    font-weight: 700;
}

.cta-section .button-primary:hover {
    background: #f0fdf4;
}

/* Footer */
footer {
    background: #1f2937;
    color: #d1d5db;
    padding: 2rem;
    text-align: center;
    font-size: 0.9rem;
}

/* Accordion */
.accordion-container {
    margin: 2rem 0;
}

.accordion-item {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 1rem;
    background: #f9fafb;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: #1f2937;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: background 0.2s;
}

.accordion-header:hover {
    background: #f3f4f6;
}

.accordion-toggle {
    display: inline-flex;
    transition: transform 0.3s;
    font-size: 0.9rem;
}

.accordion-item.active .accordion-toggle {
    transform: rotate(90deg);
}

.accordion-content {
    display: none;
    background: white;
}

.accordion-item.active .accordion-content {
    display: block;
    padding: 1.5rem;
    border-top: 1px solid #e5e7eb;
}

.flow-diagram {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1.5rem 0;
    flex-wrap: wrap;
    justify-content: center;
}

.flow-step {
    background: #dcfce7;
    border: 2px solid #22c55e;
    border-radius: 6px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    color: #166534;
    text-align: center;
    min-width: 140px;
}

.flow-arrow {
    color: #888;
    font-weight: bold;
    font-size: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    nav {
        display: none;
    }

    .feature-detail {
        padding: 1.5rem;
    }
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: #111827;
        color: #f3f4f6;
    }

    header {
        background: #1f2937;
        border-bottom-color: #374151;
    }

    .hero {
        background: linear-gradient(135deg, #064e3b 0%, #047857 100%);
    }

    .hero h1,
    .features-header h2,
    .feature-detail h3,
    .testimonial-quote {
        color: #f3f4f6;
    }

    .hero-subtitle,
    .features-header p,
    .feature-card p,
    .feature-detail p {
        color: #d1d5db;
    }

    .feature-card {
        background: #374151;
        border-color: #4b5563;
    }

    .feature-detail {
        background: #374151;
        border-color: #4b5563;
    }

    .feature-detail:nth-child(even) {
        background: #1f2937;
        border-color: #16a34a;
    }

    .screenshot-placeholder {
        background: #4b5563;
        border-color: #6b7280;
        color: #9ca3af;
    }

    nav a {
        color: #d1d5db;
    }

    nav a:hover {
        color: #22c55e;
    }

    .testimonial-section {
        background: linear-gradient(135deg, #064e3b 0%, #047857 100%);
    }

    footer {
        background: #111827;
    }

    .accordion-header {
        background: #374151;
        color: #f3f4f6;
    }

    .accordion-header:hover {
        background: #4b5563;
    }

    .accordion-item {
        border-color: #4b5563;
    }

    .accordion-item.active .accordion-content {
        background: #1f2937;
        border-top-color: #4b5563;
    }

    .flow-step {
        background: #064e3b;
        border-color: #22c55e;
        color: #dcfce7;
    }

    .flow-arrow {
        color: #9ca3af;
    }
}