*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

html{
    scroll-behavior: smooth;
}

body{
    background: #0f172a;
    color: white;
}

/* NAVBAR */
.navbar{
    width: 100%;
    padding: 20px 8%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

.logo{
    font-size: 28px;
    font-weight: bold;
    color: #3b82f6;
    letter-spacing: -0.5px;
}

.nav-links{
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a{
    text-decoration: none;
    color: white;
    transition: 0.3s;
    font-size: 15px;
}

.nav-links a:hover{
    color: #3b82f6;
}

.nav-btn{
    padding: 10px 18px;
    background:
    linear-gradient(
        145deg,
        darkblue,
        darkred
    );

    border-radius: 10px;
    font-weight: bold;
}

.nav-btn:hover{
    background: #1d4ed8;
    color: white !important;
}

/* HERO */
.hero{
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 140px 8% 80px;
}

.hero-content{
    max-width: 850px;
}

.hero h1{
    font-size: 64px;
    margin-bottom: 25px;
    line-height: 1.2;
    font-weight: 800;
}

.hero span{
    color: #3b82f6;
}

.hero p{
    color: #94a3b8;
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 40px;
}

.hero-buttons{
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* BOTÕES GERAIS */
.btn{
    padding: 14px 28px;
    border-radius: 12px;
    text-decoration: none;
    transition: 0.3s;
    font-weight: bold;
}

.primary-btn{
    background:
    linear-gradient(
        145deg,
        darkblue,
        darkred
    );

    color: white;
}

.primary-btn:hover{
    background: #1d4ed8;
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.4);
}

.secondary-btn{
    border: 2px solid #2563eb;
    color: white;
}

.secondary-btn:hover{
    background: #2563eb;
}

/* SEÇÕES GENÉRICAS */
.section{
    padding: 90px 8%;
}

.section-title{
    text-align: center;
    font-size: 42px;
    margin-bottom: 20px;
    font-weight: 800;
}

.section-subtitle{
    text-align: center;
    color: #94a3b8;
    max-width: 700px;
    margin: auto auto 50px;
    line-height: 1.7;
    font-size: 17px;
}

/* GRIDS E CARDS */
.features-grid, .steps, .lesson-grid{
    display: grid;
    gap: 25px;
}

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

.steps{
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.lesson-grid{
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* CARTÃO DE RECURSO / PASSO / LIÇÃO */
.feature-card, .step, .lesson-card {
    background: #1e293b;
    padding: 30px;
    border-radius: 20px;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    border: 1px solid transparent;
}

.feature-card:hover, .step:hover, .lesson-card:hover {
    transform: translateY(-5px);
    border-color: #3b82f6;
    box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.1);
}

.feature-card h3, .step h3, .lesson-content h3{
    margin-bottom: 15px;
    font-size: 22px;
    font-weight: 700;
}

.feature-card p, .step p, .lesson-content p{
    color: #94a3b8;
    line-height: 1.7;
    font-size: 15px;
}

/* COMPONENTES DE PASSOS (HOW IT WORKS) */
.step{
    text-align: center;
    padding: 35px;
}

.step-number{
    width: 60px;
    height: 60px;
    background:
    linear-gradient(
        145deg,
        darkblue,
        darkred
    );

    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: auto auto 20px;
    font-size: 24px;
    font-weight: bold;
}

/* COMPONENTES DE LIÇÕES (LESSON PREVIEW) */
.lesson-card{
    padding: 0;
    overflow: hidden;
}

.lesson-card img{
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.lesson-content{
    padding: 25px;
}

.lesson-btn{
    display: inline-block;
    padding: 12px 20px;
    background:
    linear-gradient(
        145deg,
        darkblue,
        darkred
    );

    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: bold;
    transition: 0.3s;
    font-size: 14px;
    width: 100%;
    text-align: center;
}

.lesson-btn:hover{
    background: #1d4ed8;
}

/* GATILHO PSICOLÓGICO: ALERTA DE BURLAS (O card vermelho que inserimos na lista) */
.lesson-grid .step {
    border: 1px solid rgba(225, 29, 72, 0.2);
    box-shadow: 0 4px 20px -5px rgba(225, 29, 72, 0.1);
}
.lesson-grid .step:hover {
    border-color: #e11d48;
    box-shadow: 0 10px 25px -5px rgba(225, 29, 72, 0.3);
}
.lesson-grid .step .lesson-btn:hover {
    background: #be123c !important;
}

/* SEÇÃO PREMIUM (CAIXA PRETA) */
.premium{
    background: linear-gradient(135deg, #1e3a8a, #5b21b6);
    border-radius: 30px;
    padding: 70px 40px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.premium h1{
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 800;
}

.premium p{
    max-width: 700px;
    margin: auto;
    line-height: 1.8;
    margin-bottom: 45px;
    color: #cbd5e1;
    font-size: 18px;
}

/* FOOTER */
footer{
    padding: 40px 8%;
    text-align: center;
    color: #64748b;
    border-top: 1px solid #1e293b;
    margin-top: 80px;
    font-size: 14px;
}

/* RESPONSIVIDADE (MOBILE-FRIENDLY) */
@media(max-width: 768px){
    .navbar{
        flex-direction: column;
        gap: 15px;
        padding: 15px 5%;
    }

    .nav-links {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero{
        padding-top: 180px;
    }

    .hero h1{
        font-size: 40px;
    }

    .hero p{
        font-size: 17px;
    }

    .section-title {
        font-size: 32px;
    }

    .premium{
        padding: 45px 20px;
    }

    .premium h1{
        font-size: 32px;
    }
}