:root {
    --primary-color: #4F46E5;
    --primary-hover: #4338CA;
    --secondary-color: #F3F4F6;
    --secondary-hover: #E5E7EB;
    --text-dark: #111827;
    --text-light: #6B7280;
    --background-color: #FFFFFF;
    --card-background: #F9FAFB;
    --border-color: #E5E7EB;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-dark);
    line-height: 1.6;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: var(--background-color);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
}

.nav {
    display: flex;
    gap: 32px;
}

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

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

.header-actions {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-dark);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--secondary-hover);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 18px;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* Hero Section */
.hero {
    padding: 80px 0;
}

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

.hero-content h1 {
    font-size: 52px;
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero-content .subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin: 0 0 32px;
}

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

.hero-image img {
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

.trial-note {
    margin-top: 12px;
    color: var(--text-light);
    font-size: 14px;
}

/* Problem Section */
.problem {
    padding: 80px 0;
    background-color: var(--card-background);
}

.problem h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 48px;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.problem-card {
    background: var(--background-color);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.problem-card h3 {
    margin-bottom: 8px;
}

.problem-card p {
    color: var(--text-light);
}

/* Features Section */
.features {
    padding: 80px 0;
}

.features h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 64px;
}

.feature-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 60px;
}

.feature-item.reverse {
    grid-template-columns: 1fr 1fr;
}

.feature-item.reverse .feature-text {
    order: 2;
}

.feature-text h3 {
    font-size: 28px;
    margin-bottom: 12px;
}

.feature-text p {
    font-size: 18px;
    color: var(--text-light);
}

.feature-image img {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

/* Benefits Section */
.benefits {
    padding: 80px 0;
    background-color: var(--card-background);
}

.benefits h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 48px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    text-align: center;
}

.benefit-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.benefit-card h3 {
    font-size: 22px;
    margin-bottom: 8px;
}

.benefit-card p {
    color: var(--text-light);
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
    text-align: center;
}

.pricing h2 {
    font-size: 36px;
}

.pricing-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-top: 8px;
    margin-bottom: 48px;
}

.pricing-card {
    max-width: 400px;
    margin: 0 auto;
    background: var(--background-color);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

.pricing-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.price {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 8px;
}

.price span {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-light);
}

.pricing-card > p {
    color: var(--text-light);
    margin-bottom: 24px;
}

.features-list {
    list-style: none;
    text-align: left;
    margin-bottom: 32px;
}

.features-list li {
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative;
}

.features-list li::before {
    content: '✓';
    color: #22C55E;
    position: absolute;
    left: 0;
    font-weight: 600;
}

/* Footer */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border-color);
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-light);
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    margin-left: 20px;
}

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

/* Responsive */
@media (max-width: 992px) {
    .feature-item, .feature-item.reverse {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .feature-item .feature-text {
        order: 2;
    }
    .feature-item .feature-image {
        order: 1;
    }
    .feature-item.reverse .feature-text {
        order: 2;
    }
}

@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content .subtitle {
        margin: 0 auto 32px;
    }
    .hero-image {
        margin-top: 40px;
    }
    .feature-item, .feature-item.reverse {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .feature-item .feature-text {
        order: 2;
    }
    .feature-item .feature-image {
        order: 1;
    }
    .feature-item.reverse .feature-text {
        order: 2;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    .problem-grid, .benefits-grid {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 40px;
    }
    .hero-content .subtitle {
        font-size: 18px;
    }
}


/* Audience Section */
.audience {
    padding: 80px 0;
    background-color: var(--card-background);
    text-align: center;
}

.audience h2 {
    font-size: 36px;
    margin-bottom: 48px;
}

.audience-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    list-style: none;
    padding: 0;
    max-width: 800px;
    margin: 0 auto;
}

.audience-list li {
    background-color: var(--background-color);
    color: var(--text-dark);
    padding: 10px 20px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    font-weight: 500;
}


/* Content Page */
.content-page {
    padding-top: 60px;
    padding-bottom: 60px;
    max-width: 800px;
}

.content-page h1 {
    font-size: 36px;
    margin-bottom: 24px;
}

.content-page h2 {
    font-size: 24px;
    margin-top: 32px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.content-page p, .content-page li {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 12px;
}

.content-page ul {
    padding-left: 20px;
}

.content-page a {
    color: var(--primary-color);
    text-decoration: none;
}

.content-page a:hover {
    text-decoration: underline;
}


/* Pricing Page */
.pricing-page {
    padding: 60px 0;
    text-align: center;
}

.pricing-page h1 {
    font-size: 36px;
    margin-bottom: 8px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 48px;
    text-align: left;
}

.pricing-page .pricing-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-page .pricing-card .btn {
    margin-top: auto;
}

.pricing-card.highlight {
    border-color: var(--primary-color);
    position: relative;
    overflow: hidden;
}

.plan-ribbon {
    position: absolute;
    top: 16px;
    right: -40px;
    background-color: var(--primary-color);
    color: #fff;
    padding: 6px 40px;
    font-size: 12px;
    font-weight: 600;
    transform: rotate(45deg);
}

@media (max-width: 992px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}