/* ===== OPÇÃO 1: BOTÃO GRADIENTE MODERNO ===== */
.btn-filtrar-moderno {
    background: linear-gradient(135deg, #2e7d32 0%, #1b5e20 100%);
    color: white;
    border: none;
    padding: 0.45rem 1.2rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(27, 94, 32, 0.3);
    transition: all 0.2s ease;
    height: 34px;
    min-width: 90px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-filtrar-moderno:hover {
    background: linear-gradient(135deg, #388e3c 0%, #2e7d32 100%);
    box-shadow: 0 4px 8px rgba(27, 94, 32, 0.4);
    transform: translateY(-1px);
    color: white;
}

.btn-filtrar-moderno:active {
    transform: translateY(1px);
    box-shadow: 0 1px 2px rgba(27, 94, 32, 0.4);
}

/* ===== OPÇÃO 2: BOTÃO CORPORATIVO ELEGANTE ===== */
.btn-filtrar-elegante {
    background-color: #1a237e;
    color: white;
    border: none;
    padding: 0.45rem 1.2rem;
    font-size: 0.85rem;
    font-weight: 400;
    border-radius: 3px;
    height: 34px;
    min-width: 90px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: all 0.3s ease;
}

.btn-filtrar-elegante::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.7s ease;
    z-index: -1;
}

.btn-filtrar-elegante:hover {
    background-color: #283593;
    color: white;
    box-shadow: 0 2px 5px rgba(26, 35, 126, 0.3);
}

.btn-filtrar-elegante:hover::before {
    left: 100%;
}

.btn-filtrar-elegante:active {
    transform: translateY(1px);
}

/* ===== OPÇÃO 3: BOTÃO MINIMALISTA PREMIUM ===== */
.btn-filtrar-premium {
    background-color: white;
    color: #212121;
    border: 1px solid #9e9e9e;
    padding: 0.4rem 1.1rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 50px;
    height: 34px;
    min-width: 90px;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-filtrar-premium::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 4px 4px 0 4px;
    border-color: #212121 transparent transparent transparent;
    margin-left: 2px;
    transition: transform 0.2s ease;
}

.btn-filtrar-premium:hover {
    background-color: #f5f5f5;
    border-color: #616161;
    color: #000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn-filtrar-premium:hover::after {
    transform: rotate(180deg);
}

.btn-filtrar-premium:active {
    background-color: #eeeeee;
}

/* ===== OPÇÃO 4: BOTÃO TECH 3D ===== */
.btn-filtrar-tech {
    background-color: #0288d1;
    color: white;
    border: none;
    border-bottom: 3px solid #01579b;
    padding: 0.4rem 1.1rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 3px;
    height: 34px;
    min-width: 90px;
    transition: all 0.15s ease;
    position: relative;
}

.btn-filtrar-tech::before {
    content: '⚲';
    display: inline-block;
    margin-right: 6px;
    transform: rotate(-45deg);
    font-size: 1rem;
    position: relative;
    top: 1px;
}

.btn-filtrar-tech:hover {
    background-color: #039be5;
    color: white;
}

.btn-filtrar-tech:active {
    background-color: #0277bd;
    border-bottom-width: 1px;
    margin-top: 2px;
    height: 34px;
}

/* ===== OPÇÃO 5: BOTÃO DESTAQUE CONTRASTANTE ===== */
.btn-filtrar-destaque {
    background-color: #ff6f00;
    color: white;
    border: none;
    padding: 0.45rem 1.2rem;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 3px;
    height: 34px;
    min-width: 90px;
    box-shadow: 0 2px 5px rgba(255, 111, 0, 0.3);
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.btn-filtrar-destaque::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.btn-filtrar-destaque:hover {
    background-color: #ff8f00;
    color: white;
    box-shadow: 0 4px 8px rgba(255, 111, 0, 0.4);
}

.btn-filtrar-destaque:hover::after {
    opacity: 1;
}

.btn-filtrar-destaque:active {
    transform: translateY(1px);
    box-shadow: 0 1px 3px rgba(255, 111, 0, 0.4);
}