:root {
    --primary: #2ecc71;
    --primary-dark: #27ae60;
    --primary-light: #a8e6cf;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-family: inherit;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(46, 204, 113, 0.4);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(46, 204, 113, 0.5);
}

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

.btn-white:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 18px;
}

.btn-block {
    width: 100%;
}

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 40px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-content .subheadline {
    font-size: 20px;
    opacity: 0.95;
    margin-bottom: 40px;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: auto;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    color: var(--gray-800);
    margin-bottom: 10px;
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--gray-500);
    margin-bottom: 50px;
}

.intro {
    padding: 80px 0;
    background: var(--white);
}

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

.intro-text {
    font-size: 20px;
    line-height: 1.8;
    color: var(--gray-600);
}

.intro-text strong {
    color: var(--primary);
}

.reasons {
    padding: 80px 0;
    background: var(--gray-50);
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.reason-card {
    background: var(--white);
    padding: 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.reason-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.reason-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 16px;
    color: var(--white);
    margin-bottom: 20px;
}

.reason-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 10px;
}

.reason-card p {
    font-size: 14px;
    color: var(--gray-500);
}

.features {
    padding: 80px 0;
    background: var(--white);
}

.features-list {
    max-width: 600px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--gray-50);
    border-radius: 12px;
    transition: all 0.3s ease;
}

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

.check-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 50%;
    color: var(--white);
    flex-shrink: 0;
}

.feature-item span:last-child {
    font-weight: 500;
    color: var(--gray-700);
}

.demos {
    padding: 80px 0;
    background: var(--gray-50);
}

.demos-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.demo-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    text-decoration: none;
    transition: all 0.3s ease;
    display: block;
}

.demo-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.demo-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
}

.demo-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform 0.4s ease;
}

.demo-card:hover .demo-image img {
    transform: scale(1.05);
}

.demo-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(46, 204, 113, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.demo-card:hover .demo-overlay {
    opacity: 1;
}

.demo-btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--white);
    color: var(--primary);
    font-weight: 600;
    border-radius: 50px;
    font-size: 14px;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.demo-card:hover .demo-btn {
    transform: translateY(0);
}

.demo-info {
    padding: 20px;
    text-align: center;
}

.demo-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 5px;
}

.demo-info p {
    font-size: 13px;
    color: var(--gray-500);
}

.pricing {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.pricing-card {
    max-width: 450px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
    border: 2px solid var(--primary);
}

.pricing-badge {
    position: absolute;
    top: 20px;
    right: -35px;
    background: var(--primary);
    color: var(--white);
    padding: 8px 50px;
    font-size: 12px;
    font-weight: 600;
    transform: rotate(45deg);
}

.pricing-amount {
    margin: 30px 0 10px;
}

.pricing-amount .currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--gray-600);
    vertical-align: top;
}

.pricing-amount .price {
    font-size: 56px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.pricing-amount .period {
    font-size: 16px;
    color: var(--gray-500);
}

.pricing-monthly {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 30px;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-600);
    position: relative;
    padding-left: 30px;
}

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

.pricing-note {
    margin-top: 20px;
    font-size: 14px;
    color: var(--gray-500);
}

.comparison {
    padding: 80px 0;
    background: var(--white);
}

.comparison-table {
    max-width: 800px;
    margin: 0 auto;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.comparison-header,
.comparison-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
}

.comparison-header {
    background: var(--gray-800);
    color: var(--white);
}

.comparison-col {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.comparison-header .comparison-col {
    font-weight: 600;
}

.comparison-header .highlight {
    background: var(--primary);
}

.comparison-row {
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
}

.comparison-row:nth-child(even) {
    background: var(--gray-50);
}

.comparison-row .highlight {
    background: rgba(46, 204, 113, 0.1);
    color: var(--primary-dark);
    font-weight: 500;
}

.check-green {
    display: inline-flex;
    color: var(--primary);
}

.savings {
    padding: 80px 0;
    background: var(--gray-50);
}

.savings-table {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.savings-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    border-bottom: 1px solid var(--gray-100);
}

.savings-row.header {
    background: var(--gray-800);
    color: var(--white);
    font-weight: 600;
}

.savings-row.total {
    background: var(--gray-100);
    font-weight: 700;
}

.savings-col {
    padding: 16px 20px;
}

.savings-col.free {
    color: var(--primary);
    font-weight: 600;
}

.savings-col.highlight {
    background: var(--primary);
    color: var(--white);
    font-weight: 700;
}

.savings-highlight {
    text-align: center;
    margin-top: 40px;
}

.savings-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 30px 50px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(46, 204, 113, 0.3);
}

.savings-label {
    display: block;
    font-size: 16px;
    opacity: 0.9;
}

.savings-amount {
    display: block;
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
}

.savings-period {
    font-size: 18px;
    opacity: 0.9;
}

.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
}

.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 15px;
}

.footer-brand .logo-icon {
    background: var(--primary);
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand p {
    color: var(--gray-400);
}

.footer-contact h4 {
    color: var(--white);
    font-size: 18px;
    margin-bottom: 15px;
}

.footer-wa {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.footer-wa:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
}

.floating-wa {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.floating-wa:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (max-width: 992px) {
    .reasons-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .demos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content h1 {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 30px 0 100px;
    }
    
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-content .subheadline {
        font-size: 16px;
    }
    
    .logo {
        margin-bottom: 40px;
    }
    
    .reasons-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .demos-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .reason-card {
        padding: 25px;
    }
    
    .features-list {
        grid-template-columns: 1fr;
    }
    
    .comparison-header,
    .comparison-row {
        grid-template-columns: 1fr;
    }
    
    .comparison-col {
        padding: 12px 16px;
    }
    
    .comparison-col:first-child {
        background: var(--gray-100);
        font-weight: 600;
    }
    
    .comparison-header .comparison-col:first-child {
        background: var(--gray-700);
    }
    
    .savings-row {
        grid-template-columns: 1fr;
    }
    
    .savings-col {
        padding: 12px 16px;
    }
    
    .savings-col:first-child {
        background: var(--gray-100);
        font-weight: 600;
    }
    
    .savings-row.header .savings-col:first-child {
        background: var(--gray-700);
    }
    
    .savings-amount {
        font-size: 32px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .pricing-card {
        padding: 30px 20px;
    }
    
    .pricing-amount .price {
        font-size: 42px;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
    
    .intro-text {
        font-size: 18px;
    }
    
    .floating-wa {
        bottom: 20px;
        right: 20px;
        width: 55px;
        height: 55px;
    }
    
    .btn-lg {
        padding: 14px 28px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content h1 {
        font-size: 24px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    .pricing-badge {
        font-size: 10px;
        padding: 6px 40px;
        right: -40px;
    }
}