html {
    height: 100%;
    background-color: #F5F5F5;
}

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

:root {
    --primary-color: #FF5252;
    --primary-light: #FFEBEB;
    --primary-light-medium: #FFD4D4;
    --secondary-color: #E8E8E8;
    --accent-color: #FF5252;
    --dark-bg: #2D2D2D;
    --light-bg: #F5F5F5;
    --text-primary: #2D2D2D;
    --text-secondary: #666666;
    --border-color: #E8E8E8;
    --white: #FFFFFF;
    --panel-gray: #EBEBEB;
    --muted-blue: #6B8EC4;
    --muted-blue-light: #EBF2FA;
    --muted-teal: #5FA8A3;
    --muted-teal-light: #EAF5F4;
    --muted-purple: #9578B8;
    --muted-purple-light: #F0E9F7;
    --muted-green: #7A9B70;
    --muted-green-light: #EDF3EB;
    --muted-rose: #A6879B;
    --muted-rose-light: #F5F0F4;
    --shadow-sm: 0 1px 2px 0 rgba(255, 82, 82, 0.04);
    --shadow-md: 0 10px 25px -5px rgba(255, 82, 82, 0.15);
    --shadow-lg: 0 20px 40px -10px rgba(255, 82, 82, 0.2);
    --shadow-xl: 0 30px 60px -15px rgba(255, 82, 82, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background-color: transparent;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: var(--white);
    backdrop-filter: none;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.logo-image {
    height: 70px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    transition: color 0.3s ease;
}

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

.cta-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.875rem 2rem;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(to right,
            #e5e7eb 0%,
            #e5e7eb 20%,

            #d1d5db 20%,
            #d1d5db 40%,

            #9ca3af 40%,
            #9ca3af 60%,

            #6b7280 60%,
            #6b7280 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.hero-text>p {
    font-size: 1.35rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.9;
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 3px solid var(--primary-color);
    font-weight: 700;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-4px);
}

.btn-large {
    padding: 1.25rem 3.5rem;
    font-size: 1.25rem;
    letter-spacing: 1px;
}

/* Hero Image Card */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.floating-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    max-width: 400px;
    animation: none;
    position: relative;
    z-index: 2;
}

.hero-panel {
    position: absolute;
    border-radius: 18px;
    z-index: 1;
    box-shadow: var(--shadow-md);
}

.hero-panel.panel-1 {
    width: 320px;
    height: 220px;
    right: 40px;
    top: 20px;
    background: var(--muted-purple-light);
    transform: rotate(-8deg);
}

.hero-panel.panel-2 {
    width: 260px;
    height: 160px;
    right: -20px;
    top: 120px;
    background: var(--muted-teal-light);
    transform: rotate(6deg);
}

.card-header {
    display: flex;
    gap: 8px;
    margin-bottom: 1.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background-color: #ff5f57;
}

.dot.yellow {
    background-color: #ffbd2e;
}

.dot.green {
    background-color: #28c940;
}

.card-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.item-task {
    padding: 0.75rem;
    background: var(--light-bg);
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.item-task:hover {
    background: var(--primary-light);
}

.highlight {
    font-weight: 800;
    color: var(--primary-color);
    display: inline-block;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
    letter-spacing: -1px;
}

.section-header p {
    font-size: 1.35rem;
    color: var(--text-secondary);
    font-weight: 500;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2.5rem 2rem;
    border-radius: 16px;
    background: white;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-weight: 700;
}

.feature-card p {
    font-weight: 500;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Use Cases Section */
.use-cases {
    padding: 80px 0;
    background: white;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.use-case-card {
    padding: 2.5rem 2rem;
    border-radius: 16px;
    background: white;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.use-case-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.use-case-icon {
    font-size: 3.5rem;
    margin-bottom: 1.25rem;
}

.use-case-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-weight: 700;
}

.use-case-card p {
    font-weight: 500;
}

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

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.benefit-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.benefit-number {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.benefit-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.benefit-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
    background: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    padding: 2.5rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: white;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
    transform: scale(1.05);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    display: flex;
    align-items: baseline;
    margin-bottom: 1rem;
}

.currency {
    font-size: 1.5rem;
    margin-right: 0.25rem;
}

.amount {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary-color);
}

.period {
    color: var(--text-secondary);
    margin-left: 0.5rem;
}

.description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.features-list li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

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

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: var(--primary-color);
    text-align: center;
    color: white;
}

.cta-section h2 {
    font-size: 3.5rem;
    margin-bottom: 1.25rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.cta-section p {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.98;
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: #cbd5e1;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4,
.footer-section h5 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p {
    color: #94a3b8;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(203, 213, 225, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: #64748b;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

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

    .pricing-card.featured {
        transform: scale(1);
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 40px 0;
    }

    .features,
    .benefits,
    .pricing,
    .cta-section {
        padding: 40px 0;
    }

    .hero-text h1 {
        font-size: 1.5rem;
    }

    .hero-text>p {
        font-size: 1rem;
    }

    .features-grid,
    .benefits-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}