.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-px);
}

.section {
    padding-block: 5rem 6rem;
}

.section-alt {
    background: var(--color-bg-alt);
}

/* Dark — apenas hero, CTA e footer usam isso */
.section-dark {
    background: var(--color-primary);
}

.section-dark .section-title {
    color: var(--color-white);
}

.section-dark .section-subtitle {
    color: rgba(255, 255, 255, 0.72);
}

.section-title {
    margin-bottom: 0.875rem;
    color: var(--color-primary);
}

.section-subtitle {
    font-size: 1.4rem;
    font-weight: 400;
    letter-spacing: 0.03em;
    color: var(--color-text-muted);
    max-width: 58ch;
    line-height: 1.7;
    margin-bottom: 3rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 6px;
    border: 2px solid transparent;
    transition: var(--trans-btn);
    text-align: center;
    white-space: nowrap;
    cursor: pointer;
    line-height: 1;
}

.btn-lg {
    padding: 0.6875rem 1.875rem;
    font-size: 1rem;
}

.btn:hover .btn-icon-wrap {
    transform: translateX(4px);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary-mid) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    border-color: transparent;
    box-shadow: 0 2px 10px rgba(30, 114, 232, 0.30),
                inset 0 1px 0 rgba(255, 255, 255, 0.14);
    transition: var(--trans-btn), box-shadow 0.2s ease, transform 0.2s ease;
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1660cc 100%);
    border-color: transparent;
    box-shadow: 0 6px 22px rgba(30, 114, 232, 0.45),
                inset 0 1px 0 rgba(255, 255, 255, 0.14);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-white {
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}
.btn-white:hover {
    background: var(--color-bg-alt);
}

.btn-whatsapp {
    background: var(--color-whatsapp);
    color: var(--color-white);
    border-color: var(--color-whatsapp);
}
.btn-whatsapp:hover {
    background: #1db855;
    border-color: #1db855;
}

.btn-whatsapp-outline {
    background: var(--color-whatsapp);
    color: var(--color-white);
    border-color: var(--color-whatsapp);
}
.btn-whatsapp-outline:hover {
    background: #1db855;
    border-color: #1db855;
}

@media (min-width: 768px) {
    :root { --container-px: 2rem; }
}

@media (min-width: 1200px) {
    :root { --container-px: 2.5rem; }
}