:root {
    --primary-color: #0020af;
    --secondary-color: #777777;
    --bg-light: #f8f9fa;
    --text-dark: #1a1a1a;
    --input-bg: #ffffff;
    --input-border: #cccccc;
    --error-color: #e74c3c;
    --border-radius: 10px;
    --transition: all 0.3s ease;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
body {
    padding-top: 10vh;
    background-color: var(--bg-light);
    color: var(--text-dark);
}
#plano-whatsapp {
    padding: 60px 20px;
    background-color: var(--bg-light);
    color: var(--text-dark);
}
#plano-whatsapp .container {
    max-width: 700px;
    margin: auto;
    background-color: #ffffff;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}
#plano-whatsapp h2 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--text-dark);
    font-weight: 600;
}
.steps-indicator {
    gap: 1.5rem;
}
.step-circle {
    width: 55px;
    height: 55px;
    background: var(--input-bg);
    color: var(--text-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.3rem;
    border: 3px solid var(--input-border);
    transition: var(--transition);
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.05);
}
.step-circle.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 32, 175, 0.5);
}
.step-line {
    height: 4px;
    width: 70px;
    background: var(--input-border);
    border-radius: 2px;
    transition: var(--transition);
}
.step-circle.active+.step-line {
    background: var(--primary-color);
}
.step {
    display: none;
}
.step.active {
    display: block;
}
input,
select {
    width: 100%;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    padding: 12px 15px;
    border-radius: var(--border-radius);
    color: var(--text-dark);
    outline: none;
    transition: var(--transition);
    font-size: 1rem;
}
input::placeholder {
    color: #aaa;
}
input:focus,
select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 5px var(--primary-color);
}
.invalido {
    border-color: var(--error-color) !important;
    background-color: rgba(231, 76, 60, 0.05);
}
.btn-primary,
.btn-secondary {
    padding: 12px 25px;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-primary {
    background-color: var(--primary-color);
    color: white;
}
.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}
.btn-primary:hover,
.btn-secondary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}
.fade-in {
    animation: fadeIn 0.5s forwards;
}
.fade-out {
    animation: fadeOut 0.5s forwards;
}
@media (max-width: 600px) {
    .step-circle {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    .step-line {
        width: 50px;
    }
    #plano-whatsapp h2 {
        font-size: 1.5rem;
    }
}