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

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-card: #1a1a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #c0c0c0;
    --accent: #06b6d4;
    --accent-hover: #0891b2;
    --accent-glow: rgba(6, 182, 212, 0.3);
    --border: #2a2a2a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

.header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    background-color: var(--bg-primary);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    color: var(--text-primary);
}

.logo-link:hover {
    color: var(--text-primary);
}

.logo-link:visited {
    color: var(--text-primary);
}

.logo-img {
    height: 40px;
    width: 40px;
    object-fit: contain;
    filter: brightness(1.1);
    display: block;
    background-color: transparent;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-left: 12px;
}

.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-badge {
    display: inline-block;
    background-color: var(--bg-card);
    color: var(--accent);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 24px;
    border: 1px solid var(--border);
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--accent-glow);
}

.problem {
    padding: 80px 0;
    background-color: var(--bg-secondary);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.problem-item {
    background-color: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.problem-item:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

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

.problem-item p {
    font-size: 16px;
    color: var(--text-secondary);
}

.solution {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.solution-text {
    font-size: 20px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-secondary);
    line-height: 1.8;
}

.service {
    padding: 80px 0;
    background-color: var(--bg-secondary);
}

.service-card {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.service-features {
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    font-size: 18px;
}

.feature-check {
    color: var(--accent);
    font-size: 24px;
    margin-right: 12px;
    font-weight: 700;
}

.service-result {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.service-result p {
    font-size: 20px;
    font-weight: 600;
    color: var(--accent);
}

.demo {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.demo-form {
    max-width: 500px;
    margin: 0 auto;
    background-color: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.demo-form .btn {
    width: 100%;
    margin-top: 10px;
}

.secondary-services {
    padding: 80px 0;
    background-color: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.service-item {
    background-color: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.service-item:hover {
    border-color: var(--accent);
}

.service-item p {
    font-size: 16px;
    color: var(--text-secondary);
}

.offer {
    padding: 80px 0;
    background-color: var(--bg-primary);
}

.offer-text {
    font-size: 20px;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-secondary);
    line-height: 1.8;
}

.final-cta {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    text-align: center;
}

.final-cta .section-title {
    margin-bottom: 40px;
}

.footer {
    padding: 40px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.footer-logo {
    height: 50px;
    width: auto;
    opacity: 0.9;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
    fill: white;
}

@keyframes pulse {
    0% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7);
    }
    100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
}

.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-visual {
    margin-top: 60px;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    background: linear-gradient(145deg, #1e1e1e 0%, #141414 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.1);
    width: 280px;
    position: relative;
}

.phone-screen {
    background: #0d0d0d;
    border-radius: 32px;
    padding: 20px 16px;
    height: 450px;
    overflow: hidden;
    position: relative;
}

.phone-header {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.phone-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    font-size: 14px;
}

.phone-user {
    flex: 1;
    text-align: left;
}

.phone-user p {
    font-size: 14px;
    font-weight: 600;
    margin: 0;
    color: #fff;
}

.phone-user span {
    font-size: 12px;
    color: #888;
}

.whatsapp-chat {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chat-message {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    text-align: left;
    max-width: 100%;
    word-wrap: break-word;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.chat-time {
    font-size: 11px;
    color: #888;
    text-align: right;
    margin-top: 4px;
}

.problem-item p {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 500;
}

.problem-item:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 10px 40px var(--accent-glow);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .section-title {
        font-size: 28px;
    }

    .problem-grid {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .demo-form,
    .service-card {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .btn {
        padding: 14px 30px;
        font-size: 16px;
    }

    .section-title {
        font-size: 24px;
    }

    .problem,
    .solution,
    .service,
    .demo,
    .secondary-services,
    .offer,
    .final-cta {
        padding: 60px 0;
    }
}