/* Estilos modernos para cards circulares de licitações */
.card-licitacao {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 3px solid #e5e7eb;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    background: linear-gradient(135deg, #ffffff 0%, #f9fafb 100%);
    position: relative;
    overflow: visible;
}

.card-licitacao:hover {
    transform: translateY(-12px) scale(1.05);
    box-shadow: 0 16px 40px rgba(59, 130, 246, 0.3);
    border-color: #e5e7eb;
}

.card-licitacao i {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    color: #3b82f6;
}

.card-licitacao:hover i {
    transform: scale(1.2) rotateY(360deg);
    color: #2563eb;
}

.card-licitacao .texto-secretarias {
    transition: all 0.3s ease;
    color: #1f2937;
    font-weight: 600;
}

.card-licitacao:hover .texto-secretarias {
    color: #3b82f6;
    transform: scale(1.05);
}

/* Efeito de pulso sutil */
.card-licitacao::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.card-licitacao:hover::after {
    width: 120%;
    height: 120%;
}

/* Animação de entrada */
.card-licitacao {
    animation: fadeInScale 0.6s ease-out forwards;
    opacity: 0;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(30px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Delays para animação em cascata */
.col-sm-6:nth-child(1) .card-licitacao { animation-delay: 0.1s; }
.col-sm-6:nth-child(2) .card-licitacao { animation-delay: 0.2s; }
.col-sm-6:nth-child(3) .card-licitacao { animation-delay: 0.3s; }

/* Container com gradiente de fundo */
.container-licitacoes {
    background: linear-gradient(to bottom, #f9fafb 0%, #ffffff 50%, #f9fafb 100%);
    padding: 3rem 0;
    border-radius: 20px;
}

/* Título da página */
.titulo-licitacoes {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.titulo-licitacoes::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #2563eb, #1d4ed8);
    border-radius: 2px;
}

/* Responsividade */
@media (max-width: 767px) {
    .card-licitacao:hover {
        transform: translateY(-8px) scale(1.03);
    }
    .titulo-licitacoes {
        font-size: 2rem;
    }
}

@media (max-width: 575px) {
    .card-licitacao i {
        font-size: 1.75rem !important;
    }
    .card-licitacao .texto-secretarias {
        font-size: 11px !important;
    }
}

/* Remove animação para prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .card-licitacao,
    .card-licitacao::before,
    .card-licitacao::after,
    .card-licitacao i,
    .card-licitacao .texto-secretarias {
        animation: none !important;
        transition: none !important;
    }
}

/* Dark mode overrides */
body.dark-mode, body.dark-mode .container-licitacoes {
    background: #0f172a !important;
    background-image: none !important;
}

body.dark-mode .titulo-licitacoes {
    color: #f1f5f9 !important;
}

body.dark-mode .card-licitacao {
    background: #1e293b !important;
    border-color: #334155 !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3) !important;
}

body.dark-mode .card-licitacao .texto-secretarias {
    color: #e2e8f0 !important;
}

body.dark-mode .card-licitacao i {
    color: #60a5fa !important;
}

body.dark-mode .card-licitacao:hover {
    background: #334155 !important;
    border-color: #60a5fa !important;
}

body.dark-mode .card-licitacao:hover .texto-secretarias {
    color: #ffffff !important;
}