html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #ffffff;
    color: #111827;
    overflow-x: hidden;
}

.landing-container {
    width: 100%;
    max-width: 1500px;
    margin: 0 auto;
    padding-left: 40px;
    padding-right: 40px;
    box-sizing: border-box;
}

/* HEADER */

.topbar {
    background: #ffffff;
    padding: 16px 0;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 6px 24px rgba(15, 23, 42, .05);
}

    .topbar .landing-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 30px;
    }

.logo {
    font-size: 38px;
    font-weight: 900;
    letter-spacing: -2px;
    color: #0f172a;
    white-space: nowrap;
}

.main-menu {
    display: flex;
    align-items: center;
    gap: 26px;
}

    .main-menu a {
        color: #4b5563;
        text-decoration: none;
        font-size: 16px;
        font-weight: 500;
        white-space: nowrap;
        position: relative;
    }

        .main-menu a:hover {
            color: #16a34a;
        }

        .main-menu a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 0;
            height: 3px;
            background: #22c55e;
            border-radius: 999px;
            transition: width .25s ease;
        }

        .main-menu a:hover::after {
            width: 100%;
        }

/* BUTTONS */

.btn-whatsapp {
    display: inline-block;
    background: #22c55e;
    color: white;
    text-decoration: none;
    padding: 16px 26px;
    border-radius: 12px;
    font-weight: 700;
    white-space: nowrap;
    transition: all .25s ease;
    box-shadow: 0 10px 22px rgba(34, 197, 94, .22);
}

    .btn-whatsapp:hover {
        background: #16a34a;
        color: white;
        transform: translateY(-2px);
        box-shadow: 0 16px 30px rgba(34, 197, 94, .32);
    }

.btn-secondary {
    display: inline-block;
    background: #f1f5f9;
    color: #0f172a;
    text-decoration: none;
    padding: 16px 26px;
    border-radius: 12px;
    font-weight: 700;
    transition: all .25s ease;
}

    .btn-secondary:hover {
        background: #e2e8f0;
        transform: translateY(-2px);
    }

/* HERO */

.hero {
    background: #ffffff;
    padding: 65px 0 90px 0;
}

    .hero .landing-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 70px;
    }

.hero-content {
    flex: 0 0 43%;
}

    .hero-content h1 {
        font-size: 72px;
        line-height: .98;
        margin-bottom: 25px;
        font-weight: 900;
        letter-spacing: -3px;
        color: #0f172a;
        user-select: none;
    }

    .hero-content p {
        font-size: 21px;
        line-height: 1.55;
        color: #4b5563;
        margin-bottom: 25px;
    }

.hero-checks {
    margin-bottom: 25px;
    color: #111827;
}

    .hero-checks div {
        margin-bottom: 9px;
        font-size: 17px;
    }

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 0 0 57%;
}

    .hero-image img {
        width: 105%;
        max-width: none;
        display: block;
        transition: transform .35s ease, filter .35s ease;
    }

        .hero-image img:hover {
            transform: translateY(-8px) scale(1.02);
            filter: drop-shadow(0 28px 36px rgba(15, 23, 42, .16));
        }

/* SECTIONS */

.problems,
.benefits,
.screenshots,
.modules,
.business-types {
    background: #ffffff;
    padding: 95px 0;
}

.cta {
    text-align: center;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    padding: 95px 0;
}

h2 {
    font-size: 48px;
    margin-bottom: 30px;
    color: #0f172a;
}

/* CARDS */

.cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.benefits .cards {
    grid-template-columns: repeat(3, 1fr);
}

.card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 18px;
    padding: 25px;
    color: #111827;
    box-shadow: 0 10px 30px rgba(15, 23, 42, .06);
    transition: all .25s ease;
}

    .card:hover {
        transform: translateY(-6px);
        box-shadow: 0 20px 40px rgba(15, 23, 42, .12);
        border-color: #bbf7d0;
    }

    .card h3 {
        margin-top: 0;
        color: #0f172a;
    }

    .card p {
        color: #4b5563;
    }

/* SOLUTION */

.solution-box {
    margin-top: 70px;
    text-align: center;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 28px;
    padding: 50px;
    box-shadow: 0 15px 40px rgba(15,23,42,.06);
}

.solution-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 25px auto;
    border-radius: 50%;
    background: #dcfce7;
    color: #16a34a;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 42px;
}

.solution-box h3 {
    font-size: 36px;
    color: #0f172a;
    margin-bottom: 15px;
}

.solution-box p {
    max-width: 800px;
    margin: auto;
    color: #64748b;
    font-size: 20px;
    line-height: 1.7;
}

/* SCREENSHOTS */

.section-description {
    color: #4b5563;
    margin-bottom: 40px;
    font-size: 20px;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

    .screenshots-grid img {
        width: 100%;
        border-radius: 18px;
        border: 1px solid #e5e7eb;
        box-shadow: 0 20px 40px rgba(15, 23, 42, .08);
        transition: all .3s ease;
    }

        .screenshots-grid img:hover {
            transform: translateY(-5px) scale(1.025);
            box-shadow: 0 32px 60px rgba(15, 23, 42, .16);
        }

/* MODULES */

.module-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.module {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    padding: 20px;
    text-align: center;
    color: #111827;
    font-weight: 600;
    box-shadow: 0 10px 25px rgba(15, 23, 42, .05);
    transition: all .25s ease;
}

    .module:hover {
        transform: translateY(-6px);
        box-shadow: 0 20px 40px rgba(15, 23, 42, .12);
        border-color: #bbf7d0;
    }

/* BUSINESS TYPES */

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.business-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 22px;
    padding: 35px;
    min-height: 260px;
    box-shadow: 0 8px 25px rgba(15, 23, 42, .05);
    transition: all .25s ease;
}

    .business-card:hover {
        transform: translateY(-7px);
        box-shadow: 0 22px 45px rgba(15, 23, 42, .12);
        border-color: #bbf7d0;
    }

.business-icon {
    width: 70px;
    height: 70px;
    border-radius: 20px;
    background: #ecfdf5;
    color: #16a34a;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 32px;
    margin-bottom: 25px;
    transition: all .25s ease;
}

.business-card:hover .business-icon {
    transform: rotate(-4deg) scale(1.08);
    background: #dcfce7;
    box-shadow: 0 12px 24px rgba(34, 197, 94, .18);
}

.business-card h3 {
    margin: 0 0 15px 0;
    font-size: 28px;
    font-weight: 700;
    color: #0f172a;
}

.business-card p {
    margin: 0;
    color: #4b5563;
    line-height: 1.7;
    font-size: 17px;
}

/* CTA / FOOTER */

.cta p {
    color: #4b5563;
    margin-bottom: 40px;
    font-size: 20px;
}

.footer {
    background: #ffffff;
    color: #6b7280;
    border-top: 1px solid #e5e7eb;
    text-align: center;
    padding: 30px 0;
    font-size: 15px;
}

/* FLOATING WHATSAPP */

.floating-whatsapp {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 62px;
    height: 62px;
    border-radius: 50%;
    background: #22c55e;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    text-decoration: none;
    box-shadow: 0 18px 35px rgba(34, 197, 94, .35);
    z-index: 2000;
    transition: all .25s ease;
}

    .floating-whatsapp:hover {
        transform: translateY(-5px) scale(1.05);
        background: #16a34a;
        color: white;
    }

/* RESPONSIVE */

@media(max-width: 1200px) {
    .main-menu {
        gap: 18px;
    }

        .main-menu a {
            font-size: 15px;
        }

    .hero-content h1 {
        font-size: 60px;
    }
}

@media(max-width: 992px) {
    .main-menu {
        display: none;
    }

    .hero .landing-container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        flex: 1;
    }

        .hero-content h1 {
            font-size: 54px;
        }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image img {
        width: 100%;
    }

    .cards,
    .benefits .cards {
        grid-template-columns: 1fr 1fr;
    }

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

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

    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media(max-width: 768px) {
    .landing-container {
        width: 100%;
        max-width: 100%;
        padding-left: 22px;
        padding-right: 22px;
    }

    .topbar {
        padding: 12px 0;
    }

        .topbar .landing-container {
            padding-left: 18px;
            padding-right: 18px;
            gap: 15px;
        }

    .logo {
        font-size: 30px;
        letter-spacing: -1px;
    }

    .topbar .btn-whatsapp {
        padding: 12px 18px;
        font-size: 15px;
    }

    .hero {
        padding: 45px 0 60px 0;
    }

    .hero-content h1 {
        font-size: 40px;
        line-height: 1.05;
        letter-spacing: -1px;
    }

    .hero-content p {
        font-size: 20px;
        line-height: 1.45;
    }

    .hero-checks div {
        font-size: 19px;
        line-height: 1.35;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

        .hero-buttons a {
            width: 100%;
            box-sizing: border-box;
            text-align: center;
        }

    .cards,
    .benefits .cards,
    .module-grid,
    .business-grid {
        grid-template-columns: 1fr;
    }

    h2 {
        font-size: 34px;
    }

    .solution-box {
        padding: 32px;
    }

        .solution-box h3 {
            font-size: 28px;
        }

    .floating-whatsapp {
        width: 56px;
        height: 56px;
        font-size: 27px;
        right: 18px;
        bottom: 18px;
    }
}