/* ================================
   RESPONSIVE DESIGN
   ================================ */

/* Tablets (768px - 991px) */
@media (max-width: 991.98px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }

    .section {
        padding: 4rem 0;
    }

    .navbar {
        padding: 1rem 0;
    }

    .navbar-nav {
        padding-top: 1rem;
        border-top: 1px solid var(--light-gray);
        margin-top: 1rem;
    }

    .navbar-nav .nav-link {
        margin: 0.5rem 0;
        font-size: 0.9rem;
    }

    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }

    .card-body {
        padding: 1.5rem;
    }

    .section-title {
        margin-bottom: 3rem;
    }

    .section-title::after {
        bottom: -1rem;
    }
}

/* Mobile (576px - 767px) */
@media (max-width: 767.98px) {
    :root {
        font-size: 15px;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.1rem; }
    h5 { font-size: 1rem; }

    .section {
        padding: 3rem 0;
    }

    .section-title {
        margin-bottom: 2rem;
    }

    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .px-lg-5 {
        padding-left: 1.5rem !important;
        padding-right: 1.5rem !important;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }

    .navbar-nav .nav-link {
        margin: 0;
        padding: 0.5rem 0;
    }

    .btn {
        padding: 0.65rem 1.2rem;
        font-size: 0.9rem;
    }

    .btn-lg {
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
    }

    .card-body {
        padding: 1.25rem;
    }

    .row.gy-4 > * {
        margin-bottom: 1.5rem;
    }

    .footer {
        padding-top: 2rem;
    }
}

/* Small Mobile (max 575px) */
@media (max-width: 575.98px) {
    :root {
        font-size: 14px;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.35rem; }
    h3 { font-size: 1.15rem; }
    h4 { font-size: 1rem; }

    .section {
        padding: 2.5rem 0;
    }

    .section-title {
        margin-bottom: 1.5rem;
    }

    .section-title::after {
        width: 60px;
        bottom: -0.75rem;
    }

    .navbar {
        padding: 0.8rem 0;
    }

    .navbar-toggler {
        border: none;
        box-shadow: none;
    }

    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }

    .btn-sm {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }

    .card-body {
        padding: 1rem;
    }

    .row {
        margin-right: -0.5rem;
        margin-left: -0.5rem;
    }

    .col {
        padding-right: 0.5rem;
        padding-left: 0.5rem;
    }

    .mb-5 {
        margin-bottom: 2rem !important;
    }

    .py-5 {
        padding-top: 2rem !important;
        padding-bottom: 2rem !important;
    }

    .text-center h1,
    .text-center h2 {
        text-align: center;
        word-wrap: break-word;
    }
}

/* Extra Small (max 380px) */
@media (max-width: 380px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.2rem; }
    h3 { font-size: 1rem; }
    h4 { font-size: 0.9rem; }

    .btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
    }

    .navbar-brand {
        font-size: 1rem;
    }
}

/* ================================
   IMPRESSÃO
   ================================ */

@media print {
    .navbar,
    .footer,
    .no-print {
        display: none;
    }

    body {
        background: var(--white);
    }
}

/* ================================
   DARK MODE (OPCIONAL)
   ================================ */

@media (prefers-color-scheme: dark) {
    /* Descomente para implementar dark mode */
    /*
    body {
        background: var(--dark);
        color: var(--light);
    }

    .navbar {
        background: linear-gradient(135deg, var(--dark-light) 0%, var(--dark) 100%);
    }

    .card {
        background: var(--dark-light);
        color: var(--light);
    }

    p, .lead {
        color: var(--light);
    }
    */
}